Rohde & Schwarz SME02 Operating Manual
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Rohde & Schwarz SME02 Operating Manual

Signal generator
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Operating Manual
SIGNAL GENERATOR
SME02
1038.6002.02
SME03
1038.6002.03
SME03E
1038.6002.13
SME03A
1038.6002.53
SME06
1038.6002.06
Printed in the Federal
Republic of Germany
1039.1856.12-14-
Test and Measurement
Division
1

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Summary of Contents for Rohde & Schwarz SME02

  • Page 1 Test and Measurement Division Operating Manual SIGNAL GENERATOR SME02 1038.6002.02 SME03 1038.6002.03 SME03E 1038.6002.13 SME03A 1038.6002.53 SME06 1038.6002.06 Printed in the Federal Republic of Germany 1039.1856.12-14-...
  • Page 3 Tabbed Divider Overview Tabbed Divider Overview Certificate of quality List of R & S Representatives Safety Instructions Contents Data Sheet EC Certificate of Conformity Tabbed Divider Chapter 1: Preparation for Use Chapter 2: Manual Operation Chapter 3: Remote Control Chapter 4: Maintenance Chapter 5: Performance Test...

  • Page 5: Table Of Contents

    Contents Contents 1 Preparation for Use ..................... 1.1 Putting into Operation......................1.1 1.1.1 Supply Voltage ......................1.1 1.1.2 Switching On/Off the Instrument................. 1.1 1.1.3 Initial Status ........................ 1.2 1.1.4 Setting Contrast and Brightness of the Display ............1.2 1.1.5 RAM With Battery Back-Up ..................1.2 1.1.6 Preset Setting ......................
  • Page 6 2.5.5 User Correction (UCOR)................... 2.47 2.5.6 EMF .......................... 2.49 2.5.7 [RF ON / OFF]-Key ....................2.49 2.5.8 Reset Overload Protection (only SME02 and SME03) ..........2.49 Modulation ........................... 2.50 2.6.1 Modulation Sources ....................2.50 2.6.1.1 Simultaneous Modulation ................2.51 2.6.1.2 Alternate Switching Off of Modulations .............
  • Page 7 Contents 2.6.3.8 FSK Modulation ..................2.94 2.6.3.9 4FSK Modulation ..................2.97 2.6.3.10 FFSK Modulation..................2.100 2.6.3.11 Radiocommunication Service ERMES ............ 2.102 2.6.3.12 Radiocommunication Service FLEX............2.107 2.6.3.13 Radiocommunication Service ReFLEX25 ..........2.116 2.6.3.14 Radiocommunication Service POCSAG ..........2.127 LF-Output ........................... 2.132 Sweep ..........................
  • Page 8 Contents 3 Remote Control....................3.1 Introduction..........................3.1 Brief Instructions........................3.1 3.2.1 IEC-Bus........................3.1 3.2.2 RS-232 Interface......................3.2 Switchover to Remote Control..................... 3.2 3.3.1 Remote Control via IEC Bus ..................3.3 3.3.1.1 Setting the Device Address ................. 3.3 3.3.1.2 Indications during Remote Control .............. 3.3 3.3.1.3 Querying the Error Status................
  • Page 9 Contents 3.6.11.7 SOURce:FREQuency Subsystem ............. 3.65 3.6.11.8 SOURce:ILS Subsystem ................3.68 3.6.11.9 SOURce:LIST Subsystem ................. 3.75 3.6.11.10 SOURce:MARKer Subsystem ..............3.78 3.6.11.11 SOURce:MBEacon Subsystem ..............3.80 3.6.11.12 SOURce:PHASe Subsystem..............3.81 3.6.11.13 SOURce:PM Subsystem ................3.82 3.6.11.14 SOURce:POCSag Subsystem ..............3.84 3.6.11.15 SOURce:POWer Subsystem ..............
  • Page 10 5.2.11 Output Level......................5.15 5.2.12 Output Reflection Coefficient ..................5.17 5.2.13 Interrupt-free Level Setting (ATTEN FIXED) ............5.18 5.2.14 Overvoltage Protection (SME02 and SME03 only) ........... 5.19 5.2.15 Level Monitoring at Input EXT1................. 5.19 5.2.16 Modulation Depth of AM ................... 5.20 5.2.17 AM Frequency Response ..................
  • Page 11 Contents 5.2.27 FM Stereo Modulation....................5.25 5.2.28 PhiM Deviation Setting....................5.26 5.2.29 PhiM Frequency Response..................5.26 5.2.30 PhiM Distortion Factor ....................5.27 5.2.31 Internal Modulation Generator .................. 5.27 5.2.32 Pulse Modulation (Option SM-B3/B8/B9)..............5.28 5.2.32.1 ON/OFF - Ratio ..................5.28 5.2.32.2 Dynamic Characteristics................
  • Page 12 Contents Annex B ........................8C.1 List of Error Messages......................8C.1 SCPI-Specific Error Messages ....................8C.1 SME-Specific Error Messages....................8C.5 Annex D ........................9D.1 Including IEC-Bus Library for QuickBasic..............9D.1 Initialization and Default Status.................9D.1 2.1. Initiate Controller.......................9D.1 2.2. Initiate Instrument .....................9D.1 Transmission of Instrument Setting Commands ............9D.2 Switchover to Manual Control ...................9D.2 Reading out Instrument Settings ................9D.2 List Management ......................9D.3...
  • Page 13 Contents Tables Table 2-1 Input sockets for the different types of modulation ........... 2.50 Table 2-2 Status messages in the case of a deviation ............. 2.51 Table 2-3 Modulations which cannot be operated simultaneously..........2.52 Table 2-4 Modulation generators as component parts ............. 2.53 Table 2-5 Radio network data ....................
  • Page 14 Contents Fig. 2-35 Menu MODULATION-ILS-LOC (preset setting) ............2.72 Fig. 2-36 Menu MODULATION-MKR-BCN (preset settings) ........... 2.76 Fig. 2-37 Menu DIGITAL MOD-GMSK, edit page..............2.79 Fig. 2-38 Signal example with respect to DM delay and delays of level control ...... 2.80 Fig.
  • Page 15 Before putting the product into operation for the first time, make sure to read the following S a f e t y I n s t r u c t i o n s Rohde & Schwarz makes every effort to keep the safety standard of its products up to date and to offer its customers the highest possible degree of safety.
  • Page 16 Safety Instructions Observing the safety instructions will help prevent personal injury or damage of any kind caused by dangerous situations. Therefore, carefully read through and adhere to the following safety instructions before putting the product into operation. It is also absolutely essential to observe the additional safety instructions on personal safety that appear in other parts of the documentation.
  • Page 17 Safety Instructions 4. If products/components are mechanically 10. Intentionally breaking the protective earth and/or thermically processed in a manner connection either in the feed line or in the that goes beyond their intended use, product itself is not permitted. Doing so can hazardous substances (heavy-metal dust result in the danger of an electric shock such as lead, beryllium, nickel) may be...
  • Page 18 Safety Instructions 19. If a product is to be permanently installed, matching Rohde & Schwarz type (see the connection between the PE terminal on spare parts list). Batteries and storage site and the product's PE conductor must batteries are hazardous waste. Dispose of be made first before any other connection them only in specially marked containers.
  • Page 19 Por favor lea imprescindiblemente antes de la primera puesta en funcionamiento las siguientes informaciones de seguridad Informaciones de seguridad Es el principio de Rohde & Schwarz de tener a sus productos siempre al día con los estandards de seguridad y de ofrecer a sus clientes el máximo grado de seguridad. Nuestros productos y todos los equipos adicionales son siempre fabricados y examinados según las normas de seguridad vigentes.
  • Page 20 Informaciones de seguridad Tener en cuenta las informaciones de seguridad sirve para tratar de evitar daños y peligros de toda clase. Es necesario de que se lean las siguientes informaciones de seguridad concienzudamente y se tengan en cuenta debidamente antes de la puesta en funcionamiento del producto. También deberán ser tenidas en cuenta las informaciones para la protección de personas que encontrarán en otro capítulo de esta documentación y que también son obligatorias de seguir.
  • Page 21 Informaciones de seguridad seguridad (control a primera vista, control de peligro a causa de la radiación conductor protector, medición de resistencia electromagnética. El empresario está de aislamiento, medición de medición de la comprometido a valorar y señalar areas de corriente conductora, control trabajo en las que se corra un riesgo de...
  • Page 22 Informaciones de seguridad 12. No utilice nunca el producto si está dañado el 20. En caso de que los productos que son cable eléctrico. Asegure a través de las instalados fijamente en un lugar sean sin medidas de protección y de instalación protector implementado, autointerruptor o adecuadas de que el cable de eléctrico no similares objetos de protección, deberá...
  • Page 23 Informaciones de seguridad 27. Baterías y acumuladores no deben de ser 31. Las asas instaladas en los productos sirven expuestos a temperaturas altas o al fuego. solamente de ayuda para el manejo que Guardar baterías y acumuladores fuera del solamente está previsto para personas. Por alcance de los niños.
  • Page 25 Certified Quality System DIN EN ISO 9001 : 2000 DIN EN 9100 : 2003 DIN EN ISO 14001 : 1996 DQS REG. NO 001954 QM/ST UM QUALITÄTSZERTIFIKAT CERTIFICATE OF QUALITY CERTIFICAT DE QUALITÉ Sehr geehrter Kunde, Dear Customer, Cher Client, Sie haben sich für den Kauf eines you have decided to buy a Rohde &...
  • Page 27 EC Certificate of Conformity Certificate No.: 9502004 This is to certify that: Equipment type Order No. Designation SME02/03/06 1038.6002.02/.03/.06 Signal Generator SME03A 1038.6002.53 " SME03E 1038.6002.13 " SME42 1038.6002.42 " SME22/23/24 1038.6002.22/.23/.24 Power Signal Generator SME-B11 1036.8720.02/.22 DM Coder SME-B12 1039.4090.02...
  • Page 29 EC Certificate of Conformity Certificate No.: 9502055 This is to certify that: Equipment type Order No. Designation SM-B1 1036.7599.02 Reference Oszillator SM-B2 1036.7947.02/08 LF Generator SM-B3 1036.6340.02 Pulse Modulator SM-B4 1036.9310.02 Pulse Generator SM-B5 1036.8489.02 FM/PHIM Modulator SM-B6 1036.7760.02/08 Multifunction Generator SM-B8 1036.6805.02 Pulse Modulator...
  • Page 31 Customer Support Technical support – where and when you need it For quick, expert help with any Rohde & Schwarz equipment, contact one of our Customer Support Centers. A team of highly qualified engineers provides telephone support and will work with you to find a solution to your query on any aspect of the operation, programming or applications of Rohde &...
  • Page 33 Supplement B to Operating Manual SIGNAL GENERATOR Correction of Data Sheet, Number 757.0358.23 Models SME03 and SME03E Amplitude modulation: AM distortion factor at 1 kHz Applies to levels ≤ 7dBm Model SME06 Instead of the values quoted in the data sheet, the following specifications of the SME06 apply: Amplitude modulation: Modulation frequency response (m = 60 %) 20 Hz (DC) to 50 kHz ..........

  • Page 35: Preparation For Use

    Putting into Operation Preparation for Use Putting into Operation Before putting the SME into operation, please make sure that • the covers of the casing are put on and screwed, • the ventilation openings are free, • no signal voltage levels exceeding the permissible limits are applied at the inputs,, •...

  • Page 36: Initial Status

    Putting into Operation 1.1.3 Initial Status Upon switching on, the instrument either automatically assumes the status which was set when it was switched off (parameter POWER-ON STATE PREVIOUS SETTING in LEVEL-LEVEL menu) or the RF output is disconnected (POWER-ON STATE RF OFF). If the instrument need not to be operated from the initial status any further, a defined default status should be established by pressing the [PRESET] key prior to further settings.

  • Page 37: Preset Setting

    Functional Test 1.1.6 Preset Setting A defined setting status is achieved by pressing the [PRESET] key. Preset Status: RF frequency 100 MHz RF level -30 dBm Reference frequency internal, adjustment off Offsets Modulations switched off Transient-free level setting switched off, level attenuator mode: AUTO Internal level control level ALC: ON User correction...

  • Page 38: Fitting The Options

    Fitting the Options Fitting the Options Due to its variety of options, the SME offers the possibility of providing the instrument with the equipment exactly corresponding to the application. Newly fitted options are automatically recognized and the relevant parameters added in the menu. After every change of the instrument configuration, the CMOS RAM has to be cleared as the storage data shift: À...

  • Page 39: Overview Of The Slots

    Fitting the Options 1.3.2 Overview of the Slots X28 X29 Option SM-B1 A2 = power supply A8 = digital synthesis A3 = front unit A9 = summing loop A4 = option A10 = output section, 1.5 GHz A5 = option A11 = output section 3 GHz/6 GHz A6 = option A11 = option...

  • Page 40: Option Sm-B2 - Lf Generator

    Fitting the Options Calculate calibration value The tuning voltage is generated by a 12b-bit-D/A converter which is scaled such that a tuning voltage of 12 volts is generated with calibration value (CALIBRATION DATA) 4000. The calibration value is thus calculated from the tuning voltage (V as follows CALIBRATION DATA = V ×...

  • Page 41: Options Sm-B3, Sm-B8 And Sm-B9 - Pulse Modulator 1.5, 3 And 6 Ghz

    Fitting the Options 1.3.5 Options SM-B3, SM-B8 and SM-B9 - Pulse Modulator 1.5, 3 and 6 GHz When fitting this option, the RF characteristics of the instrument change to such an extent that the output level has to be calibrated. This requires calibrated test instruments , a control processor and service kit SM-Z2.
  • Page 42 Fitting the Options Adjustment Option SM-B5 loads the internal modulation generators so that their output voltage decreases by approx. 1%. This causes a modulation error which can be corrected by the adaptation of the corresponding adjustments. This requires service SM-Z2 (stock no.: 1039.3520.02).

  • Page 43: Option Sm-B6 - Multifunction Generator

    Fitting the Options 1.3.8 Option SM-B6 - Multifunction Generator The multifunction generator is fitted at one of rear slots A5, A6 or A12. À Undo the board locking on both sides of the motherboard. À Plug the PCB on one of the slots. À...
  • Page 44 Fitting the Options À Allow the SME to warm up. Delay compensation À Connect the spectrum analyzer (see Section 5, item 2) to the RF output of the SME. À SME settings - Menu FREQUENCY 836 MHz - Menu LEVEL 0 dBm - Menu DIGITAL MOD / DQPSK data source PRBS .

  • Page 45: Option Sme-B12 - Dm Memory Extension

    Fitting the Options 1.3.10 Option SME-B12 - DM Memory Extension The memory extension is mounted on one of rear slots A5, A6 or A12. À Undo the board locking on both sides of the motherboard. À Plug the PCB on one of the slots A5, A6, or A12. À...

  • Page 46: Cabling Of The 50-Mhz Reference (Ref50)

    Fitting the Options 1.3.13 Cabling of the 50-MHz Reference (REF50) Instrument without options Cable From A7-X72 A8-X81 Cable From Instrument with option multifunction generator W172 A7-X72 A5--X53 A5-X51 A8-X81 Cable From Instrument with option pulse generator A7-X72 A4-X41 A4-X42 A8-X81 Cable From Instrument with options...

  • Page 47: Operation

    Front Panel Operation Explanation of Front and Rear Panel 2.1.1 Elements of the Front Panel 2.1.1.1 Display (cf. Fig. 2-1, A Front panel view, display) 100. 000 000 0 - 30.0 FREQ LEVEL FREQUENCY FM1 DEVIATION 1.00 kHz LEVEL FM1 SOURCE LFGEN1 EXT1 EXT2...
  • Page 48 Front Panel 5 kHz...3.0 GHz SIGNALGENERATOR SME 03 1038.6002.03 DATA DATA INPUT FREQ dBµV 100. 000 000 0 - 30.0 CLOCK FREQ LEVEL LEVEL µ µV SAVE EXT 1 FREQUENCY Ï LEVEL OPERATING RC L ENTER dB(m) MODULATION Move cursor DIGITAL MOD EXT 2 MENU / VARIATION...

  • Page 49: Controls

    Front Panel 2.1.1.2 Controls (cf. Fig. 2-1, B front panel view, controls) DATA INPUT Parameter field see as well Parameters RF frequency and RF level can be entered Section 2.2.2.5, FREQ directly by means of the parameter keys, alternatively Use of [FREQ] and to menu operation.
  • Page 50 Front Panel 5 kHz...3.0 GHz SIGNALGENERATOR SME 03 1038.6002.03 DATA DATA INPUT FREQ dBµV 100. 000 000 0 - 30.0 CLOCK LEVEL FREQ LEVEL µ µV SAVE EXT 1 FREQUENCY Ï LEVEL OPERATING RC L ENTER dB(m) MODULATION DIGITAL MOD Move cursor EXT 2 MENU / VARIATION...
  • Page 51 Front Panel DATA INPUT Unit keys with enter function The unit keys terminate the input of values and specify see as well the multiplication factor for the respective basic unit. Section 2.2.2, dBµV The basic units are displayed next to the input field Basic Operating while numbers are entered.
  • Page 52 Front Panel SIGNALGENERATOR 5 kHz...3.0 GHz SME 03 1038.6002.03 DATA DATA INPUT FREQ dBµV 100. 000 000 0 - 30.0 CLOCK FREQ LEVEL LEVEL µ µV SAVE EXT 1 FREQUENCY Ï LEVEL OPERATING RC L ENTER dB(m) MODULATION DIGITAL MOD Move cursor EXT 2 MENU / VARIATION...
  • Page 53 Front Panel MENU/VARIATION Rotary knob The rotary knob moves the menu cursor over the See as well positions of a menu level to choose from or varies the Section 2.2.2, value of a parameter. The variation is either effected in Basic Operating Steps steps of one or in a step width that can be specified at Section 2.2.3,...
  • Page 54 Front Panel SIGNALGENERATOR 5 kHz...3.0 GHz SME 03 1038.6002.03 DATA DATA INPUT FREQ dBµV 100. 000 000 0 - 30.0 CLOCK FREQ LEVEL LEVEL µ µV SAVE EXT 1 FREQUENCY Ï LEVEL OPERATING RC L ENTER dB(m) MODULATION DIGITAL MOD Move cursor EXT 2 MENU / VARIATION...
  • Page 55 Front Panel Brightness and contrast of the display can be set using See as well the rotary knobs. Section 1.1.5, Setting of Contrast and Contrast Brightness of the Display Brightness QUICK SELECT QUICK SELECT MENU 1 ME NU 2 ASSGIN See as well The menu-quick-selection keys permit fast access to Section 2.2.2, Basic...
  • Page 56 Front Panel SIGNALGENERATOR 5 kHz...3.0 GHz SME 03 1038.6002.03 DATA DATA INPUT FREQ dBµV 100. 000 000 0 - 30.0 CLOCK FREQ LEVEL LEVEL µ µV SAVE EXT 1 FREQUENCY Ï LEVEL OPERATING RC L ENTER dB(m) MODULATION DIGITAL MOD Move cursor EXT 2 MENU / VARIATION...

  • Page 57: Inputs/Outputs

    Front Panel 2.1.1.3 Inputs/Outputs (Cf. Fig. 2-1, C Front panel view, Inputs/Outputs) See as well DATA Input external data signal for digital Section 2.6.3, modulation. Input resistance 1 kΩ, Digital Modulation DATA TTL-level. Output* data signal with operating mode internal. Level: TTL CLOCK Section 2.6.3,.
  • Page 58 Rear Panel TRIGGER X-A XIS MARKER BLANK TUNE PULSE BURST 100-240 VAC 2,7-1,1 A 50-400 Hz DATA SYNC CLOCK VIDEO RS 232 EXT1 EXT2 IEC625 IEEE488 Fig. 2-2 Rear panel view 1038.6002.02 2.12 E-13...

  • Page 59: Elements Of The Rear Panel

    Rear Panel 2.1.2 Elements of the Rear Panel (Cf. Fig. 2-2, Rear panel view) X -AXIS MARKER BLAN K Outputs for control and triggering in the sweep and list See as well operating modes. Section 2.8, Sweep X-AXIS Level: 0 to 10 V. Section 2.9, MARKER Level: TTL...
  • Page 60 Rear Panel TRIGGER X - A X I S MARKER BLANK TUNE PULSE BURST 100-240 VAC 2,7-1,1 A 50-400 Hz DATA SYNC CLOCK VIDEO RS 232 EXT1 EXT2 IEC625 IEEE488 Fig. 2-2 Rear panel view 1038.6002.02 2.14 E-13...
  • Page 61 Rear Panel See as well Output of the internal 10-MHz reference Section 2.11.5, signal with reference internal. Reference Frequency Source resistance 50 Ω. Int/Ext Input for external reference frequency with reference external. Adjustable to external reference frequencies from 1 MHz to 16 TUNE MHz in 1-MHz steps.
  • Page 62 Rear Panel TRIGGER X - A X I S MARKER BLANK TUNE PULSE BURST 100-240 VAC 2,7-1,1 A 50-400 Hz SYNC DATA CLOCK VIDEO RS 232 EXT1 EXT2 IEC625 IEEE488 Fig. 2-2 Rear panel view 1038.6002.02 2.16 E-13...
  • Page 63 Rear Panel IEC625 IEEE488 IEC 625 IEC-Bus (IEEE 488) See as well Chapter 3, IEEE 488 Remote-control interface Remote Control EXT2 Cut-out, provided to relocate the EXT2 input at the front to the rear of the instrument. EXT2 EXT1 Cut-out, provided to relocate the EXT1 input at the front to the rear of the instrument.

  • Page 64: Operating Concept

    Display Operating Concept 2.2.1 Display 100. 000 000 0 - 30.0 FREQ LEVEL FREQUENCY FM1 DEVIATION 1.00 kHz LEVEL FM1 SOURCE LFGEN1 EXT1 EXT2 MODULATION LFGEN1 FREQ 0.4k PULSE DIGITAL MOD LF OUTPUT FM2 DEVIATION 2.000 0 SWEEP FM2 SOURCE LFGEN2 EXT1 EXT2...

  • Page 65: Basic Operating Steps

    Display 2.2.2 Basic Operating Steps The operating principle is explained in this section. For better understanding, please read sections "Display" (Section 2.2.1) and "Sample Setting for First Users" (Section 2.2.3) in addition. To operate the instrument, menus are called in the display. All setting possibilities and the current setting status are evident from the menus.

  • Page 66: Selection And Change Of Parameters

    Basic Operating Steps 2.2.3.2 Selection and Change of Parameters À Set the menu cursor to the name of the parameter desired using the rotary Select parameter knob, e.g. to AM DEPTH in the AM menu, Fig. 2.4.. À Via value input or using rotary knob. Change setting value À...

  • Page 67: Triggering Action

    Basic Operating Steps Quick selection of The quick selection of a parameter reduces the number of operating steps if a parameter several parameters are set successively. The menu cursor can directly be set further from line to line in the column of the setting values by pressing the [SELECT] key.

  • Page 68: Use Of [Freq] And [Level] Keys

    Basic Operating Steps 2.2.3.5 Use of [FREQ] and [LEVEL] Keys RF frequency and RF level can be set without menu operation as well using direct keys [FREQ] and [LEVEL]. The input value considers the offset, see Sections 2.4 and 2.5. À...

  • Page 69: Correction Of Input

    Sample Setting for First Users 2.2.3.8 Correction of Input Digital entries can be corrected by one of the unit/Enter keys before terminating the input. Ï The backspace key deletes the value entered digit by digit. When the last Key [-/ digit is deleted, the previous value is displayed.
  • Page 70 Sample Setting for First Users The output signal is to be amplitude-modulated next. - AM modulation depth 15.5 % - AM signal 3-kHz sine Operating steps Explanations Select MODULATION menu. MENU / VARIATION MENU / VARIATION À Set menu cursor to MODULATION using the rotary knob and SELECT MODULATION...

  • Page 71: List Editor

    List Editor Operating steps Explanations M E NU / V ARIATION Select LF generator 1 as modulation M E NU / V ARIATION source. The selection mark marks LFGEN1. LFGEN1 SELECT AM is faded in the status line as a hint that AM is switched on.
  • Page 72 List Editor Subsequently to the above setting, 420 MHz as new RF frequency and 12.5 kHz as the step width for the RF frequency variation are set in the following. Parameter quick select is used, which reduces the number of operating steps. Operating steps Explanations Reset the menu cursor to the main...

  • Page 73: Fig. 2-6 Display After Pattern Setting

    List Editor Operating steps Explanations Select USER (user-defined step MENU / VARIATION MENU / VARIATION width). The selection mark marks USER. . USER . SELECT This results in step width 12.5 kHz being used in the case of variation using the rotary knob. Reset the menu cursor to the main menu in 2 steps.

  • Page 74: Fig. 2-7 Operation Page Of The Mem Seq Menu

    List Editor 2.2.4 List Editor The SME offers the possibility to generate lists. Lists are used for setting sequences (LIST mode or memory sequence), as data source for digital modulations or for level correction which can be defined by the user (UCOR). They consist of elements which are defined by an index and at least one parameter per index.

  • Page 75: Select And Generate - Select List

    List Editor FUNCTION Selection of the edit function for processing the lists. The EDIT page is automatically called through the selection (cf. Section 2.2.4.3). FILL Filling a list with elements. INSERT Insertion of elements into a list. DELETE Deletion of elements of a list. 2.2.4.1 Select and Generate - SELECT LIST SELECT LIST opens a selection window in which either an existing list can be selected or a new, empty list can be generated (cf.

  • Page 76: Deletion Of Lists - Delete List

    List Editor CREATE NEW LIST Ð Generating a new list. The name of the list cannot be selected freely in the case of manual control. A definite list name is automatically generated in the following form: MSEQ<n>, with <n> ∈ {0..9}, e.g. MSEQ1 (with Memory Sequence) This applies correspondingly to the other operating modes.

  • Page 77: Edition Of Lists

    List Editor 2.2.4.3 Edition of Lists Due to the selection of an edit mode on the OPERATION page the EDIT page is automatically activated. When the EDIT/VIEW function is selected, the largest possible section of the list is displayed (cf. Fig. 2-10).
  • Page 78 List Editor À Mark the index associated to the parameter using the rotary knob or directly Select parameters enter the value of the index via the numeric keys. À Press [SELECT] key. Parameter MEMORY is marked. If the second parameter DWELL is to be marked, press the [SELECT] key again.
  • Page 79 List Editor FILL AT Setting the filling range. Lower limit (index) RANGE Number of the elements to be inserted Selection on which of the parameters the filling function is to have an effect. PARAMETER This menu option is eliminated if the list only includes elements with one parameter.
  • Page 80 List Editor Block function INSERT Function INSERT inserts desired number elements with constant linearly increasing/de-creasing values before the element with the given starting index. All elements which had been stored from the starting index are shifted to the end of the range to be inserted. Input is effected analogously to filling a list.

  • Page 81: Pattern Setting To Operate The List Editor

    List Editor Block function DELETE Function DELETE deletes the elements of the range indicated. This does not leave a gap in the list but the remaining elements move forward. If the given range exceeds the end of the list, deletion until the end of the list is effected.
  • Page 82 List Editor At the beginning of the operation sequence, menu MEM SEQ is called. First a list MSEQ0 has to be generated and then activated. The menu cursor marks a parameter of the setting menu on the OPERATION page (c.f. Fig. 2-14). - 30.0 100.
  • Page 83 List Editor Select single-value function MENU / VARIATION MENU / VARIATION EDIT/VIEW. The EDIT page of the MEM SEQ menu is called. The menu cursor . EDIT/VIEW . SELECT marks the index of the first element of list MSEQ0. Set the menu cursor to the memory location number value of the first SELECT element (c.f.

  • Page 84: Fig. 2-15, A To C Pattern Setting - Edition Of A List

    List Editor Fig. 2-15, a to c Pattern setting - Edition of a list 1038.6002.02 2.38 E-13...

  • Page 85: Save/Recall - Storing/Calling Of Instrument Settings

    Save/Recall 2.2.5 Save/Recall - Storing/Calling of Instrument Settings 50 complete instrument settings can be stored in memory locations 1 to 50. Operating steps Explanations DATA INP UT Store current instrument setting in memory location 12. SAVE ENTER DATA INP UT Call instrument setting of memory location 12.

  • Page 86: Menu Summary

    Menu Summary Menu Summary FREQUENCY LEVEL LEVEL UCOR MODULATION (Option SM-B5) (Option SM-B5) PULSE (Option SM-B3/B8/B9) STEREO (Option SM-B5/B6) (Option SM-B6) ILS-GS (Option SM-B6) ILS-LOC (Option SM-B6) MKR-BCN (Option SM-B6) DIGITAL MOD (Option SME-B11 ) GMSK GSFK (Option SME-B11) (Option SME-B11) QPSK (Option SME-B11) 4FSK...

  • Page 87: Rf Frequency

    RF Frequency RF Frequency The frequency of the RF output signal can be set directly using the [FREQ] key (cf. Section 2.2.2.5) or by accessing menu FREQUENCY. In the FREQUENCY menu, the frequency of the RF output signal is indicated under FREQUENCY. In the case of frequency settings effected in the FREQUENCY menu, the value entered directly is the frequency of the RF output signal.

  • Page 88: Frequency Offset

    RF Frequency KNOB STEP DECIMAL: Variation step width corresponding to the position of the digit cursor. USER: "User Defined", variation step width as entered under KNOB STEP USER . EXCLUDE FROM RCL The saved frequency is loaded as well when instrument settings are loaded with the [RCL] key or with a memory sequence.

  • Page 89: Rf Level

    RF Level RF Level The RF output level can be set directly using the [LEVEL] key (cf. Section 2.2.2.5) or by accessing the LEVEL menu. In the LEVEL-LEVEL menu, the set RF output level is indicated under AMPLITUDE. A two-line level display appears for digital modulation or digital standard.
  • Page 90 RF Level LIMIT Input value of level limitation. This value indicates the upper limit of the level at the RF output connector. If a level above this limit is attempted to be set, a warning is displayed in the status line. IEC-bus command SOUR:POW:LIM 16 dBm ATTENUATOR MODE...

  • Page 91: Level Offset

    RF Level 2.5.1 Level Offset The SME offers the possibility of entering the offset (OFFSET) of a possibly series-connected attenuator/amplification element in the LEVEL-LEVEL menu. The indication/input value in the LEVEL header field considers this input (see below) and represents the level value of the signal at the output of the series-connected instrument (cf.

  • Page 92: Switching On/Off Internal Level Control

    RF Level 2.5.3 Switching On/Off Internal Level Control Menu LEVEL-ALC offers access to settings for level control. Level control can be deactivated and various bandwidths of the level control can be switched on. Switching off level control (ALC STATE OFF) switches over the internal level control into a sample-and-hold operation.

  • Page 93: Internal Level Control - Bandwidth Selection

    RF Level 2.5.4 Internal Level Control - Bandwidth Selection Selection of the bandwidth of the level control. BANDWIDTH AUTO The bandwidth is automatically adapted to the operating conditions. IEC-bus command SOUR:POW:ALC:BAND:AUTO ON 100 kHz Bandwidth narrow. This setting improves AM noise with carrier offset >100 kHz.

  • Page 94: Fig. 2-22 Menu Ucor - Level-Edit Side

    RF Level STATE Switching on/off user correction. IEC-bus command SOUR:CORR ON Selection of a list or generation of a new list(cf. Section 2.2.4, List Editor) SELECT LIST... IEC-bus command SOUR:CORR:CSET "UCOR1" DELETE LIST... Deletion of a list (cf. Section 2.2.4, List Editor) IEC-bus command SOUR:CORR:CSET:DEL "UCOR2"...

  • Page 95: Emf

    2.5.8 Reset Overload Protection (only SME02 and SME03) SME02 and SME03 are protected against overload by an external signal which is fed into the RF output. If an external signal is too high, the overload protection responds. This state is indicated by means of the message "RF OFF"...

  • Page 96: Modulation

    Modulation Sources Modulation The SME offers the following modulations: • Amplitude modulation (AM) • Frequency modulation (FM) * • Phase modulation (PM) * • Pulse modulation (PULSE) * • FM-stereo modulation (STEREO) • VOR/ILS modulation (VOR, ILS-GS, ILS-LOC, MKR BCN) * and the digital modulations: •...

  • Page 97: Simultaneous Modulation

    Modulation Sources The external modulation signal must show a voltage of V = 1 V (V = 0.707 V) in order to maintain the modulation depth or deviation indicated. Deviations of more than ±3 % are signaled in the status line by means of the following messages (cf.

  • Page 98: Mod On/Off] Key

    Modulation Sources Table 2-3 Modulations which cannot be operated simultaneously Stereo VOR ILS INT1 INT2 EXT1 INT1 EXT1,2 INT2 EXT1, INT1 EXT1,2 INT2 EXT1, AM INT1 AM INT2 AM EXT1  FM1 INT1  FM1 EXT1,2  FM2 INT2  FM2 EXT1,2 ...

  • Page 99: Analog Modulation

    Analog Modulations 2.6.2 Analog Modulation 2.6.2.1 LF-Generator The SME is equipped with a fixed-frequency generator as internal modulation source as a standard. The generator supplies sinusoidal signals of the frequencies of 0.4, 1, 3 and 15 kHz. In addition to the standard equipment, the SME can be equipped with the following optional LF modulation sources: •...

  • Page 100: Amplitude Modulation

    Analog Modulations 2.6.2.2 Amplitude Modulation Menu MODULATION-AM offers access to settings for amplitude modulation. Notes: - In the level range from 7 to 13 dBm, the specified AM data are only guaranteed for a linearly decreasing modulation depth with a rising level. When a modulation depth is set that is too high, "WARNING"...
  • Page 101 Analog Modulations Selection of the polarity of amplitude modulation. AM POLARITY NORM A positive modulation voltage generates a higher output level. The AM polarity is inverted. IEC-bus command SOUR:AM:POL NORM Selection of the frequency of the 1st LF generator. LFGEN1 FREQ IEC-bus command SOUR:AM:INT1:FREQ 1kHz LFGEN2 FREQ...

  • Page 102: Frequency Modulation

    Analog Modulations 2.6.2.3 Frequency Modulation Menu MODULATION-FM offers access to settings for frequency modulation. Note: The following modulations cannot be set simultaneously and deactivate one another: FM and PM; FM2 and STEREO; FM2 SOURCE = LFGEN2 and VOR, ILS, MKR BCN Menu selection: MODULATION-FM 100.

  • Page 103: Fm Deviation Limits

    Analog Modulations EXT2 COUPLING Selection of the type of coupling AC or DC for the external input EXT2. IEC-bus command SOUR:FM1:EXT2:COUP AC Selection of the preemphasis PREEMPHASIS IEC-bus command SOUR:FM1:PRE 50us 2.6.2.3.1 FM Deviation Limits The maximal deviation depends on the RF frequency set (cf. Fig. 2-26). It is possible to enter a deviation that is too high for a certain RF frequency or to vary the RF frequency to a range in which the deviation can no longer be set.

  • Page 104: Phase Modulation

    Analog Modulations 2.6.2.4 Phase Modulation Menu MODULATION-PM offers access to settings for phase modulation. Note: The following modulations cannot be set simultaneously and deactivate one another: PM and FM PM and STEREO PM2 SOURCE = LFGEN2 and VOR, ILS, MKR BCN Menu selection: MODULATION - PM 100.

  • Page 105: Pm Deviation Limits

    Analog Modulations EXT1 COUPLING Selection of the type of coupling AC or DC with external supply for PM1 (input EXT1). IEC-bus command SOUR:PM:EXT1:COUP AC Selection of the type of coupling AC or DC with external supply for PM2 (input EXT2 COUPLING EXT2).

  • Page 106: Pulse Modulation

    Analog Modulations 2.6.2.5 Pulse Modulation The pulse modulator can be controlled by an external source as well as by the internal pulse generator. In the case of external control, the external source directly feeds the pulse modulator. The envelope of the RF is identical to the control signal.
  • Page 107 Analog Modulations Pulse input TRIGGER DELAY SYNC signal Double Pulse Delay W IDTH WIDTH VIDEO signal RF signal Fig. 2-30 Signal example 2: double pulse, TRIGGER MODE = EXT, SLOPE = POS Note: The minimum period length depends on parameters WIDTH and PULSE DELAY. To avoid a settings conflict the following has to be true: PERIOD ≥...
  • Page 108 Analog Modulations SOURCE Selection of the modulation source. IEC-bus command SOUR:PULM:SOUR INT; STAT ON Selection of the polarity of the modulation POLARITY NORM The RF signal is on during high level. The RF signal is suppressed during high level. IEC-bus command SOUR:PULM:POL NORM Selection of the input resistance 50 Ω...

  • Page 109: Stereo Modulation

    Analog Modulations 2.6.2.6 Stereo Modulation By means of option SM-B6, multifunction generator, and option SM-B5, FM/PM modulator, stereo multiplex signals conforming to standards can be generated according to the pilot-tone method. Note: The following modulations cannot be set simultaneously and deactivate one another: STEREO and FM STEREO and PM STEREO and AM if SOURCE AM = LFGEN2...

  • Page 110: Vor- / Ils-Test Signals

    Analog Modulations PREEMPHASIS Selection of the preemphasis of the audio signal. 50 uS Preemphasis 50 µs 75 uS Preemphasis 75 µs Preemphasis switched off IEC-bus command SOUR:STER:AUD:PRE OFF Switching on/off the pilot tone. PILOT STATE IEC-bus command SOUR:STER:PIL:STAT OFF PILOT DEVIATION Input value of the frequency deviation of the pilot tone.

  • Page 111: Vor Modulation

    Analog Modulations 2.6.2.7.1 VOR Modulation Notes: The following modulations cannot be set simultaneously and deactivate one another: VOR and AM VOR and PM if SOURCE PM = LFGEN2 VOR and FM if SOURCE FM = LFGEN2 In the AM, FM, PM and LF-output menu the message "VOR" is displayed under LFGEN2 if the VOR modulation is activated.
  • Page 112 Analog Modulations BEARING ANGLE Input value of the phase angle between the 30-Hz VAR signal and the 30-Hz reference signal. IEC-bus command SOUR:VOR 0deg Selection of the reference position of the phase information. DIRECTION FROM Selection of the beacon as a reference position. The angle set under BEARING ANGLE corresponds to the angle between the true north and the connection line between beacon and airplane.
  • Page 113 Analog Modulations CARRIER FREQ Selection of the variation of the carrier frequency via the rotary knob. KNOB STEP DECIMAL Decimal variation according to the current cursor position. DEFINED Variation in predefined steps according to the standardized VOR transmitting frequencies (see table, values in MHz): Note: If DEFINED is selected, the current RF frequency is automatically switched over to the next VOR transmitting frequency according to the...

  • Page 114: Ils-Glide Slope Modulation (Ils-Gs)

    Analog Modulations 2.6.2.7.2 ILS-Glide Slope Modulation (ILS-GS) Notes: - The following modulations cannot be set simultaneously and deactivate one another: ILS-GS and AM, ILS-GS and PM if SOURCE PM = LFGEN2 ILS-GS and FM if SOURCE FM = LFGEN2 In the AM, FM, PM and LF-output menu the message "ILS-GS" is displayed under LFGEN2 if the ILS-GS modulation is activated.
  • Page 115 Analog Modulations 150 Hz Amplitude modulation of the output signal with the 150-Hz signal content of the ILS-GS signal. The modulation depth of the 150-Hz signal results from the settings of parameters SUM OF DEPTH (SOD) and DDM acc. to: AM (150 Hz) = 0,5 ×...
  • Page 116 Analog Modulations DOWN FREQ Input value of the modulation freq. of the antenna lobe arranged at the bottom. IEC-bus command SOUR:ILS:LLOB 150 Note: A variation of one of the two modulation frequencies causes an automatic adaptation of the other modulation frequency in such a way that a frequency-response ratio of 3:5 or 5:3 is maintained.
  • Page 117 Analog Modulations LOC/GS (MHz) LOC/GS (MHz) LOC/GS (MHz) LOC/GS (MHz) LOC/GS (MHz) LOC/GS (MHz) LOC/GS (MHz) 108.10 / 108.70 / 109.30 / 109.90 / 110.50 / 111.10 / 111.70 / 333.50 334.70 330.50 332.00 333.80 329.60 331.70 108.15 / 108.75 /330.35 109.35 / 109.95 / 110.55 /...

  • Page 118: Ils-Localizer Modulation (Ils-Loc)

    Analog Modulations 2.6.2.7.3 ILS-Localizer Modulation (ILS-LOC) Notes: The following modulations cannot be set simultaneously and deactivate one another: ILS-LOC and AM ILS-LOC and PM if SOURCE PM = LFGEN2 ILS-LOC and FM if SOURCE FM = LFGEN2 In the AM, FM, PM and LF-output menu the note "ILS-LOC" is displayed under LFGEN2 if the ILS-LOC modulation is activated.
  • Page 119 Analog Modulations 150 Hz Amplitude modulation of the output signal with the 150-Hz signal content of the ILS-LOC signal. The modulation depth of the 150-Hz signal results from the settings of parameters SUM OF DEPTH (SOD) and DDM according to: AM (150 Hz) = 0,5 ×...
  • Page 120 Analog Modulations LEFT FREQUENCY Input value of the modulation frequency of the antenna lobe arranged at the left viewed from the plane. IEC-bus command SOUR:ILS:LOC:LLOB 90 Input value of the modulation frequency of the antenna lobe arranged RIGHT FREQUENCY at the right viewed from the plane. IEC-bus command SOUR:ILS:LOC:RLOB 150 Note:...
  • Page 121 Analog Modulations CARRIER FREQ KNOB STEP Selection of the variation of the carrier frequency via the rotary knob. The selection is effective on both ILS modulations. DECIMAL Decimal variation according to the current cursor position. DEFINED Decimal variation according to the current cursor position.

  • Page 122: Marker Beacon

    Analog Modulations 2.6.2.7.4 Marker Beacon Notes: - The following modulations cannot be set simultaneously and deactivate one another: MKR-BCN and AM, MKR-BCN and PM if SOURCE PM = LFGEN2 MKR-BCN and FM if SOURCE FM = LFGEN2 - In the AM, FM, PM and LF-output menu the note "MKR-BCN" is displayed under LFGEN2 if the MKR-BNC modulation is activated.
  • Page 123 Analog Modulations CARRIER FREQ KNOB STEP Selection of the variation of the carrier frequency via the rotary knob. DECIMAL Decimal variation according to the current cursor position. DEFINED Variation in predefined steps according to the standardized marker beacon transmitter frequencies (s.

  • Page 124: Digital Modulation

    Digital Modulation 2.6.3 Digital Modulation The SME offers the following digital modulations (option SME-B11, DM coder): • GMSK for GSM/PCN (Global System for Mobile Communications/ Personal Communication System) CDPD (Cellular Digital Packet Data) (French Communication network) MOBITEX (Mobile data system) DSRR (Digital Short Range Radio) MD24 to MD192 (Standards according to ETS specifications)

  • Page 125: Data Generator

    Digital Modulation 2.6.3.1 Data Generator The data generator contains a memory for the data (DATA), for level switchover (LEV ATT) and for the BURST output (BURST) each. The data generator can be programmed via the IEC bus or manually using the list editor (cf. Fig. 2-37). The maximal memory capacity is 8192 bits. The data generator can also be programmed for shorter sequences.

  • Page 126: Prbs Generator

    Digital Modulation IEC-bus commands for programming the data generator:: :DM:DATA:SEL "DLIST1" :DM:DATA:DATA 0,0,1,0,0,0,1,1,0,1,1,1,0,1,1,0 :DM:DATA:ATT 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0 :DM:DATA:BURS 0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1 bit 2 bit 3 bit 4 bit 5 bit 1 bit 6 DATA LEV-ATT bit 1 bit 2 bit 3 bit 4 bit 6 bit 5 delay of level approx.

  • Page 127: Dm Memory Extension, Option Sme-B12

    Digital Modulation 2.6.3.3 DM Memory Extension, Option SME-B12 Option SME-B12, memory extension, increases the memory depth of the data generator. The memory depth depends on the selection of the memory space allocation (MEM MODE, cf. submenu CONFIG XMEM...). If the entire memory area is allocated to the DATA memory (MEM MODE 8M*1), the memory depth is increased to 8 MBit.
  • Page 128 Digital Modulation CLOCK MODE BIT In this mode, X and Y bits are stored serially in the "XMEM" list and MEM MODE 8M*1 are transmitted via the DATA line. The X bit can be found at the start address. CLOCK MODE BIT In this mode, the X and Y bits are also stored serially in the MEM MODE 1M*3 "XMEM"...
  • Page 129 Digital Modulation Input value of the start address START ADDRESS Input range in mode 8M*1: 1 to 8388478 Input range in mode 1M*3: 1 to 1048558. IEC-bus command :SOUR:DM:DATA:XMEM:STAR 1 LENGTH LENGTH Input value of the sequence length. For a start address = 1 the following applies: Input range in mode 8M*1: 3 to 8388480 Input range in mode 1M*3: 3 to 1048560.

  • Page 130: Recording A Data Sequence From An External Source

    Digital Modulation 2.6.3.3.1 Recording a Data Sequence from an External Source (External Loading) À Mark one of the digital modulations using the menu cursor and press Call DM menu key [SELECT]. À Mark parameter SOURCE using the menu cursor and press key Select external [SELECT].
  • Page 131 Digital Modulation À Mark submenu CLOCK... using the menu cursor and press key Select external clock [SELECT]. À Mark parameter CLOCK SOURCE using the menu cursor and press key [SELECT]. À Mark selection COUPLED using the menu cursor and press key [SELECT].

  • Page 132: External Data Sources

    Digital Modulation 2.6.3.4 External Data Sources Inputs DATA, CLOCK and BURST are available for the digital modulation with external data signals. The polarity of the modulation and the active clock edge can be selected in the menu. In the case of 4FSK and QPSK modulation, the CLOCK input can be switched over between bit clock and symbol clock.

  • Page 133: Gmsk Modulation

    Digital Modulation 2.6.3.5 GMSK Modulation Menu DIGITAL MOD-GMSK offers access to settings for GMSK modulation. Menu selection: DIGITAL MOD - GMSK 100. 000 000 0 - 30.0 FREQ LEVEL FREQUENCY GMSK SOURCE PRBS DATA LEVEL GFSK PRBS 23 bit MODULATION QPSK CLOCK...
  • Page 134 Digital Modulation Input value of the level reduction. The level reduction is internally LEVEL ATTENUATION controlled by the LEV-ATT bits in the data list or externally via connector BURST. A logic "1" in the data list causes a level reduction. IEC-bus command :SOUR:DM:DATA:ALEV 0dB Selection of the operating mode for the DATA generator.

  • Page 135: Gfsk Modulation

    Digital Modulation 2.6.3.6 GFSK Modulation Menu DIGITAL MOD - GFSK offers access to settings for GFSK modulation. Menu selection: DIGITAL MOD - GFSK 100. 000 000 0 - 30.0 FREQ LEVEL FREQUENCY GMSK SOURCE PRBS DATA LEVEL GFSK PRBS 23 Bit MODULATION QPSK CLOCK...
  • Page 136 Digital Modulation MODE Selection of the operating mode for the DATA generator. AUTO The data are always repeated. SINGLE The data are sent once as soon as the run has been started using EXECUTE SINGLE MODE IEC-bus command :TRIG:DM:SOUR AUTO SELECT STANDARD...

  • Page 137: Qpsk Modulation

    Digital Modulation 2.6.3.7 QPSK Modulation Menu DIGITAL MOD - QPSK offers access to settings for QPSK modulation setting range of the bit rate is 1.00 to 24.3 kbps and 27.0 to 48.6 kbps. In range 1.00 to 24.3 kbps the nonharmonic suppression is reduced by aliasing products.
  • Page 138 Digital Modulation 100. 000 000 0 - 30 .0 FREQ LEVEL FREQUENCY GMSK SOURCE CLOCK EDGE LEVEL GFSK PRBS CLOCK SOURCE COUPLED MODULATION QPSK CLOCK... CLOCK MODE SYMBOL DIGITAL MOD LEVEL ATTENUATION MODE LF OUTPUT 4FSK LEVEL ATTENUATION SWEEP FFSK MODE LIST SELECT STANDARD...
  • Page 139 Digital Modulation LEVEL ATTENUATION Input value of the level reduction. The level reduction is internally controlled by the LEV ATT bits in the data list or externally via connector BURST. A logic "1" in the data list causes a level reduction. IEC-bus command :SOUR:DM:DATA:ALEV 0dB MODE...

  • Page 140: Fsk Modulation

    Digital Modulation 2.6.3.8 FSK Modulation Menu DIGITAL MOD - FSK offers access to settings for FSK modulation. FSK modulation is possible with or without a filter. The filter can be switched off and allows free setting of the deviation. The maximum setting depends on the carrier frequency.
  • Page 141 Digital Modulation Selection of the modulation source for FSK. SOURCE IEC-bus command :SOUR:DM:TYPE FSK; SOUR EXT; STAT ON Selection of the Pseudo Random Binary Sequence. PRBS IEC-bus command :SOUR:DM:PRBS 9 CLOCK ... Opens a window to set the clock parameters. The current settings are displayed (cf.
  • Page 142 Digital Modulation FILTER... Opens a window to select the filters. The following filters can be selected: BESSEL B×T=1.22 (corresponds to a bandwidth of 3.9 kHz at 3.2 kbps) BESSEL B×T=2.44 (corresponds to a bandwidth of 3.9 kHz at 1.6 kbps) GAUSS B×T=2.73 (corresponds to a rise time 250 µs at 512 bps) Due to digital filtering, a change of the bit rate influences the cut-off...

  • Page 143: 4Fsk Modulation

    Digital Modulation 2.6.3.9 4FSK Modulation Menu DIGITAL MOD - 4FSK offers access to settings for 4FSK modulation. The maximum setting depends on the carrier frequency: Carrier frequency Maximum deviation < 130 MHz 100 kHz 130 to 187.5 MHz 25 kHz 187.5 to 375 MHz 50 kHz 375 to 750 MHz...
  • Page 144 Digital Modulation Selection of the modulation source for 4FSK. SOURCE IEC-bus command :SOUR:DM:TYPE FSK4; SOUR EXT; STAT ON Selection of the Pseudo Random Binary Sequence.. PRBS IEC-bus command :SOUR:DM:PRBS 9 CLOCK ... Opens a window to set the clock parameters. The current settings are displayed (cf.
  • Page 145 Digital Modulation FILTER ... Opens a window to select the filters for 4FSK. The following filters can be selected:: BESSEL B×T=1.22 cos, 0.2 √cos, 0.2 BESSEL B×T= 1.25 BESSEL B×T= 2.44 Due to digital filtering, a change of the bit rate influences the cut-off frequency of the filter.

  • Page 146: Ffsk Modulation

    Digital Modulation 2.6.3.10 FFSK Modulation Menu DIGITAL MOD - FFSK offers access to settings for FFSK modulation. Menu selection: DIGITAL MOD - FFSK 100. 000 000 0 - 30.0 FREQ LEVEL FREQUENCY GMSK SOURCE PRBS DATA LEVEL GFSK PRBS MODULATION QPSK CLOCK...
  • Page 147 Digital Modulation MODE Selection of the operating mode for the DATA generator. AUTO The data are always repeated. SINGLE The data are sent once as soon as the run has been started using EXECUTE SINGLE MODE IEC-bus command :TRIG:DM:SOUR AUTO EXECUTE SINGLE MODE Ð...

  • Page 148: Radiocommunication Service Ermes

    Digital Modulation 2.6.3.11 Radiocommunication Service ERMES ERMES is a radiocommunication method permitting Europe-wide paging. If fitted with options SME- B11, DM coder, and SME-B12, memory extension, the SME generates ERMES call signals conforming to standard. All parameters and the message to be transmitted can be freely selected. Note: Switching on ERMES automatically switches off all other DM modulations.
  • Page 149 Digital Modulation STATE Switching on ERMES. The RF frequency is set to the value determined by the selection of CHANNEL. The status line indicates the word ERMES, the batch, the number of subsequence, and the type of data sent. "MSG" indicates message data, "- - -"...
  • Page 150 Digital Modulation Input value of the code of the network operator. OPERATOR CODE IEC-bus command :SOUR:ERM:NINF:OPER 7 Input value of the paging area. PAGING AREA IEC-bus command :SOUR:ERM:NINF:PA 4 The parameters of the system information set the data of the --- SYSTEM INFORMATION --- transmitting system.
  • Page 151 Digital Modulation ALPHANUM MESSAGE Opens a window to select an alphanumeric message and to create a new one. The following is available: "The quick brown fox jumps over the lazy dog" ALPHA "ABCD..." (complete ERMES character string) LONG Message completely filling a batch USER1 to 3 Three messages which can freely be edited by means of command EDIT MESSAGE..
  • Page 152 Digital Modulation Selection of the message and fill subsequence. MODE ALWAYS The message subsequence is output continuously. IEC-bus command :TRIG:DM:SOUR AUTO SINGLE The filler subsequence is output. With the trigger pulse, switchover to message subsequence is effected for 12 seconds. IEC-bus command :TRIG:DM:SOUR SING :SOUR:ERM:TACT MESS...

  • Page 153: Radiocommunication Service Flex

    Digital Modulation 2.6.3.12 Radiocommunication Service FLEX Like ERMES, FLEX is a radiocommunication service that makes for convenient paging. When equipped with the SME-B41 (FLEX), SME-B11 (DM coder) and SME B12 (DM memory extension) options, the SME generates call signals complying to the FLEX or FLEX-TD standard. All essential parameters and the message to be transmitted are freely selectable.
  • Page 154 Digital Modulation Switch on of FLEX. STATE The RF frequency has to be set to the desired value by means of key [FREQ]. The status line displays the word FLEX as well as the cycle and frame number and the type of output data: secure message INST...
  • Page 155 Digital Modulation FRAME OFFSET Input value of the frame offsets. IEC-bus command: :SOUR:FLEX:SINF:FOFF 0 Activating/Deactivating the generation of roaming information in ROAMING the telegram sent. None; the roaming bits in the frame information word have the value 0. SSID BIW000 for all frames, each in one phase. BIW111 in the first four frames, each in one phase.
  • Page 156 Digital Modulation The following four commands define the "Network Identification" emitted by the SME. Input value of the network address part of the network ID. NETWORK ADDRESS IEC-bus command: :SOUR:FLEX:SINF:NADD 2058240 Input value of the multiplier part of the network ID. MULTIPLIER IEC-bus command: :SOUR:FLEX:SINF:MULT 1...
  • Page 157 Digital Modulation PHASE Selection of which phase (A to D) the message is to be transmitted. Since each frame lasts 1.875 sec independent of the modulation and more data can be transmitted at bit rates higher than 1600 bps, several independent channels ("phases") are bit-multiplexed.
  • Page 158 Digital Modulation ALPHANUM MESSAGE... Opens a window to select or create an alphanumeric message. The following selection can be made: "The quick brown fox jumps over the lazy dog" ALPHA "ABCD..." (complete FLEX character set) USER1...4 Four messages that can be freely edited by command EDIT MESSAGE.
  • Page 159 Digital Modulation MAIL DROP FLAG Switch on/off of MAIL DROP flag The transmitted message is marked as "volatile". Thus, it is not filed in the normal message memory of the pager but in a special memory location and is not subject to normal numbering. The message overwrites the previous "volatile"...
  • Page 160 Digital Modulation FRAME CONTENTS... Opens a window to determine the contents of up to 128 frames. Each frame is represented by one character. These characters can be set to the following values: alphanumeric message binary message filler frame, contains FLEX structures messages identical with <blank>...
  • Page 161 Digital Modulation EXTTRIG The SME only starts with the generation of the FLEX signal after recognition of a trigger pulse at the trigger input connector. After recognition of this signal, the next frame is output in the way it has been specified under FRAME CONTENTS.

  • Page 162: Radiocommunication Service Reflex25

    Digital Modulation 2.6.3.13 Radiocommunication Service ReFLEX25 When equipped with the SME-B43, SME-B11 and SME-B12 options, the SME generates telegrams complying to the ReFLEX25 standard. The telegram generated by the SME complies with the ReFLEX25 Protocol Specification Document Version 2.4 dated March 15, 1996, issued by the Motorola Advanced Messaging Group.
  • Page 163 Digital Modulation Bit Error Rate Test The SME is able to switch a receiver to the test mode for bit error rate tests and then send standard test patterns. To this end, set a character to “B“ (for BER message) in FRAME CONTENTS. Furthermore, set any number of continuous frames to “F“...
  • Page 164 Digital Modulation The following steps are required: À Generation of a telegram Set all ReFLEX25 parameters to the desired values. Make sure that REFLEX25:STATE:AUTO is set to ON. Switch ReFLEX25 on and off again in order to generate a ReFLEX25 telegram in the SME memory.
  • Page 165 Digital Modulation Menu selection: DIGITAL MOD - ReFLEX 100. 000 000 0 - 30.0 FREQ LEVEL FREQUENCY GMSK STATE LEVEL GFSK MODULATION 1600-2FSK 3200-2FSK 3200-4FSK 6400-4FSK MODULATION QPSK DEVIATION 2.40 kHz DIGITAL MOD --------------------MESSAGE--------------------- LF OUTPUT 4FSK PERSONAL ADDRESS 16777216 SWEEP FFSK NUMERIC MESSAGE...
  • Page 166 Digital Modulation STATE Switches on ReFLEX25. The status line displays the cycle and frame number and the type of output data as well as the word “RFLX“ (see table under FRAME CONTENTS). A switchover from STATE OFF to STATE ON results in a recalculation of the telegram and its entry into the list “XMEM“.
  • Page 167 Digital Modulation ALPHANUM MESSAGE Opens a window to select an alphanumeric message. The following selections can be made: „The quick brown fox jumps over the lazy dog“ ALPHA „ABCD...“ (complete ReFLEX25 character set) USER1...4 Four messages that can be freely edited by command EDIT MESSAGE.
  • Page 168 Digital Modulation FORWARD CHANNEL Together with FREQUENCY SPACING the next two settings determine the frequency of the channel from the transmitter (SME) to the receiver. The following formula is valid in this case: FREQ = FORW CHAN BASE FREQUENCY + FORW CHAN ASSIGNMENT NUMBER * FREQUENCY SPACING If AUTO ADAPTATION is switched to ON, the frequency calculated...
  • Page 169 Digital Modulation SCI BASE FRAME System configuration information (SCI) frames are transmitted within each cycle of 128 frames. Their positions within the cycle is calculated according to SCI COLLAPSE MASK INDEX = SCI BASE FRAME + 2 * i for all i, until INDEX exceeds SCI BASE FRAME and SCI COLLAPSE MASK are transmitted to the receiver in the respective block information words.
  • Page 170 Digital Modulation This function specifies the contents of the max. 128 frames sent FRAME CONTENTS by the SME during one cycle. A window is opened in which each frame is represented by one character. One of the following frame types can be selected for each of the 128 frames: Character Status Frame contents...
  • Page 171 Digital Modulation RECALCULATE Ð Triggers recalculation of the generated ReFLEX25 telegram and - with AUTO ADAPTATION set to ON - an update of the RF frequency. The execution of RECALCULATE is required when a setting is changed that influences the telegram. This includes all parameters except FRAME...
  • Page 172 Digital Modulation EXTTRIG-ALWAYS only starts with generation ReFLEX25 signal after recognition of a trigger pulse at the trigger input connector. Then, this mode behaves described under the setting ALWAYS. This setting can be used to synchronize two SMEs. IEC-bus command :TRIG:DM:SOUR EXT;...

  • Page 173: Radiocommunication Service Pocsag

    Digital Modulation 2.6.3.14 Radiocommunication Service POCSAG POCSAG is a standard which in its various implementations (e.g. CITYRUF, SCALL) allows convenient paging. When equipped with the SME-B42 (POCSAG), SME-B11 (DM coder) and SME B12 (DM memory extension) options, the SME generates call signals complying to the POCSAG standard. All essential parameters and the message to be transmitted are freely selectable.
  • Page 174 Digital Modulation MODULATION Selection of used modulation. Two types are available: The RF is directly modulated with the data signal. FFSK An LF is first modulated, which is then used as the modulation signal for the RF. IEC-bus command SOUR:POCS:MOD FSK Input value of frequency deviation of modulation.
  • Page 175 Digital Modulation SYNC WORD Selection of the contents of the sync word. This word distinguishes between the various types of paging services. POCSAG 0x7CD215D8; also used for CITYRUF INFORUF 0x7CD21436. IEC-bus command :SOUR:POCS:MESS:SWOR POCS Input value of the tone which is transmitted during category TONE. TONE NUMBER Four tones are available (A, B, C, D).
  • Page 176 Digital Modulation The SME allows for providing a 32-bit-word of the transferred ----BIT ERRORS--- message with bit errors for test purposes. The parameters of this section specify the erroneous bits and their positions. ERROR BIT MASK Entry of the erroneous bits in a 32-bit field. The transmitted decimal number (0...4294967295) is converted internally into a 32-bit binary number and thus defines the 32 bits.
  • Page 177 Digital Modulation MODE Selection of sequence of messages and filler data. ALWAYS The message is continuously output according to the time interval which is set under TIME SLICE. IEC-bus command :TRIG:DM:SOUR AUTO SINGLE The time slices without message are continuously output.

  • Page 178: Lf-Output

    LF-Output LF-Output Depending on which options are fitted (cf. table 2-4), internal LF generator 1 and/or 2 are available as a signal source for the LF output. Menu LF OUTPUT offers access to the settings of the LF output. Notes: - An alteration of the waveform or frequency of the internal modulation generators in the LF- output menu has a parallel effect on the modulation for which the respective generator is selected as modulation source.
  • Page 179 LF-Output Notes: If LF generator 2 (LFGEN2) is selected as source and STEREO operating mode is activated, the voltage of the LF output depends on the setting of the wanted and the pilot deviation and cannot be changed in this menu.

  • Page 180: Sweep

    Sweep Sweep The SME offers a digital step-by-step sweep for parameters: • RF frequency • LF frequency • RF level In addition to the digital step-by-step sweep, an analog sweep for RF frequency and RF level is possible by switching on frequency or amplitude modulation with an internal saw tooth. Setting a sweep is effected in five basic steps which are shown in the following example, the setting of a frequency sweep: 1.

  • Page 181: Selecting The Sweep Run (Spacing Lin, Log)

    Sweep 2.8.2 Selecting the Sweep Run (SPACING LIN, LOG) The sweep run, linear or logarithmic, can be selected using SPACING. For the RF and LF sweep, a linear or logarithmic run is possible. For level sweep, only the logarithmic run is possible. With the logarithmic sweep, step width STEP is equal to a constant fraction of the present setting.

  • Page 182: Trigger Input

    Sweep EXT-STEP Step-by-step run by means of the external trigger signal. Each trigger event triggers a single step. IEC-bus commands: RF sweep: LF sweep: Level sweep: SOUR:FREQ:MODE SWE SOUR2:FREQ:MODE SWE SOUR:POW:MODE SWE SOUR:SWE:MODE STEP SOUR2:SWE:MODE STEP SOUR:SWE:POW:MODE STEP TRIG:SOUR EXT TRIG2:SOUR EXT TRIG:SOUR EXT The sweep operating mode is switched off.
  • Page 183 Sweep MARKER This output becomes active when the sweep run has reached the mark. The MARKER signal can be used for the brightness control of an oscilloscope. Up to three marks can be set in order to mark certain positions in the sweep run. The polarity of the signal can be set in menu UTILITIES - AUX I/O - MARKER POLARITY.

  • Page 184: Rf-Sweep

    Sweep 2.8.6 RF-Sweep Menu SWEEP - FREQ offers access to settings for RF sweep. Menu selection: SWEEP - FREQ 100.000 000 0 START FREQ - 30.0 LEVEL 500.000 000 0 STOP FREQ RF-SWP FREQUENCY FREQ START FREQ 100.000 000 0 MHz LEVEL LEVEL STOP FREQ...
  • Page 185 Sweep DWELL Input value of the dwell time per step. IEC bus short command :SOUR:SWE:DWEL 10ms Input value of the dwell time per step. SPACING IEC bus short command :SOUR:SWE:SPAC LIN MODE Selection of the sweep operating mode (cf. Section 2.8.3).. IEC bus short commands :SOUR:FREQ:MODE SWE;...

  • Page 186: Level Sweep

    Sweep 2.8.7 LEVEL Sweep Menu SWEEP - LEVEL offers access to settings for LEVEL sweep. Menu selection: SWEEP - LEVEL - 30.0 START LEVEL 100. 000 000 0 FREQ - 10.0 STOP LEVEL LEV-SWP -30.0 dBm FREQUENCY FREQ START LEVEL LEVEL LEVEL STOP LEVEL...

  • Page 187: Lf-Sweep

    Sweep EXECUTE SINGLE SWEEP Ð Starts a single sweep run. This action to be executed is only indicated and is only effective if MODE SINGLE is selected. IEC bus short command :TRIG RESET SWEEP Ð Sets the starting level. IEC bus short command :ABOR MARKER 1 LEVEL Input value of the level for the marker selected.
  • Page 188 Sweep Input value of the starting frequency. START FREQ IEC bus short command :SOUR:SOUR2:FREQ:STAR 100kHz Input value of the stop frequency. STOP FREQ IEC bus short command :SOUR2:FREQ:STOP 50kHz Indication of the current frequency value. CURRENT FREQ Operating mode STEP: Input value of the frequency. STEP Input value of the step width.

  • Page 189: List Mode

    LIST Mode LIST Mode A sequence of predefined frequency and level points is executed in the LIST mode, similar as in a sweep. Differently from the sweep, however, a list with freely selectable pairs of values (frequency and level) can be generated. The specified range of the frequency comprises the entire adjustable frequency range of the instrument.

  • Page 190: Inputs/Outputs

    LIST Mode STEP Step-by-step manual processing of the list. Activating STEP stops a list running and the cursor wraps to the indication value of CURRENT INDEX. The list can now be controlled upwards or downwards in discrete steps using the rotary knob or the numeric keys.
  • Page 191 LIST Mode TRIGGER input BLANK-output MARKER-output Frequency Fig. 2-58 Signal example LIST mode: MODE = EXT-STEP The LIST menu offers access to settings for the LIST mode. Menu selection: LIST - - -.- - - -.- - - LEVEL FREQ LIST FREQUENCY MODE...
  • Page 192 LIST Mode RESET LIST Ð Sets the starting point. IEC-bus short command :ABOR:LIST Input value of the dwell time per step. DWELL IEC-bus short command :SOUR:LIST:DWEL 10ms CURRENT INDEX Indication of the current list index. Setting value of the current list index in the STEP operating mode.
  • Page 193 LIST Mode The second page of the LIST menu, the EDIT page is automatically activated if one of the editor functions of line FUNCTION is selected. The list which is displayed as CURRENT LIST in the SELECT LIST line is shown. - 30.0 100.

  • Page 194: Memory Sequence

    Memory Sequence 2.10 Memory Sequence In the memory-sequence operating mode the instrument automatically services a list with stored instrument settings. Memory locations 1 to 50, which are loaded using SAVE and whose stored settings are called either separately using RECALL or automatically and subsequently in the SEQUENCE mode, are available.
  • Page 195 Memory Sequence SINGLE Single run from the beginning to the end of the list. If SINGLE is selected, the run is not yet started. Below the MODE line, function EXECUTE SINGLE SEQUENCE to be executed is displayed which can be used to start the run. IEC-bus short command :SYST:MODE MSEQ;...
  • Page 196 Memory Sequence External Trigger An external signal at the rear input TRIGGER triggers the MEMORY SEQUENCE in the EXT-SINGLE and EXT-STEP operating modes. The polarity of the active trigger edge can be set in the UTILITIES - AUX I/O - EXT TRIG SLOPE menu. Menu MEM SEQ with the two menu pages OPERATION and EDIT offers access to the memory-sequence operating mode.
  • Page 197 Memory Sequence The second page of menu MEM SEQ, the EDIT page, is automatically activated if one of the editor functions of the FUNCTION line is selected. The list which is entered as CURRENT LIST in the SELECT LIST line is shown. -30.0 100.

  • Page 198: Utilities

    Utilities 2.11 Utilities The UTILITIES menu contains submenus for general functions which do not directly relate to the signal generation. 2.11.1 IEC-Bus Address (SYSTEM-GPIB) Submenu SYSTEM-GPIB offers access to the remote-control address. The setting range is 0 to 30. At the point of delivery address 28 is set.

  • Page 199: Parameter Of The Rs232 Interface (System-Rs232)

    Utilities 2.11.2 Parameter of the RS232 Interface (SYSTEM-RS232) Submenu SYSTEM-RS232 offers access to the configuration of the RS-232 interface. The pin assignment of the interface corresponds to the pin assignment of a PC. Menu selection: UTILITIES - SYSTEM - RS232 -30.0 100.

  • Page 200: Suppressing Indications And Deleting Memories (System-Security)

    Utilities 2.11.3 Suppressing Indications and Deleting Memories (SYSTEM-SECURITY) For security interests, indications can be suppressed and memories deleted in the SYSTEM-SECURITY submenu. Menu selection: UTILITIES - SYSTEM-SECURITY -30.0 100. 000 000 0 LEVEL FREQ FREQUENCY SYSTEM GPIB STATE ANNOTTATION FREQ LEVEL REF OSC RS232...

  • Page 201: Indication Of The Iec-Bus Language (Language)

    Utilities 2.11.4 Indication of the IEC-Bus Language (LANGUAGE) Submenu UTILITIES-SYSTEM LANGUAGE indicates the IEC-bus language and the current SCPI version. 2.11.5 Reference Frequency Internal/External (REF OSC) In the internal-reference operating mode, the internal reference signal at a frequency of 10 MHz is available at the REF socket (rear of the instrument).

  • Page 202: Phase Of The Output Signal (Phase)

    Utilities EXT FREQUENCY Input value of the external reference frequency (1 MHz to 16 MHz, spacing 1 MHz). IEC-bus short command :SOUR:ROSC:EXT:FREQ 10E6 ADJUSTMENT STATE Tuning value of the internal reference frequency as calibrated (cf. menu UTILITIES-CALIB) Tuning value according to setting value FREQUENCY ADJUSTMENT.

  • Page 203: Password Input With Functions Protected (Protect)

    Utilities 2.11.7 Password Input With Functions Protected (PROTECT) The execution of calibrating and service functions is protected by a password. To unlock the lock-out, the correct password, a 6-digit number, has to be entered and then the [ENTER] key has to be pushed. After the instrument has been switched on, the lock-out is automatically activated.

  • Page 204: Calibration (Calib)

    Utilities 2.11.8 Calibration (CALIB) For servicing, the following menus offer access to calibrating routines and correction values: UTILITIES - CALIB - VCO SUM LEV PRESET PULSE GEN REF OSC (cf. service manual) QPSK LEVEL (cf. service manual) Internal calibration routines LEV PRESET, VCO SUM, QPSK and PULSE GEN are protected by a password.
  • Page 205 Utilities CALIBRATE Ð Triggers the calibration for the VCO summing loop IEC-bus short command :CAL:VSUM? VIEW Ð Indication of the list of correction values. The cursor wraps to index 1 of the list. The list can be executed using the rotary knob.
  • Page 206 Utilities LEVEL Selection of the level for which the correction values are indicated. VIEW Ð The cursor wraps to index 1 of the list. The list can be executed using the rotary knob. This index can be directly obtained by entering the index value on the digit block.
  • Page 207 Utilities CALIBRATION QPSK QPSK modulation is generated by means of frequency modulation and amplitude modulation. The delay of FM and AM signal must be tuned to each other. As the delay of the AM signal is subjected to manufacturing tolerances, the delay of the FM signal can be adjusted electronically. Menu UTILITIES-CALIB-QPSK offers access to the delay calibration.

  • Page 208: Indications Of Module Variants (Diag-Config)

    Utilities 2.11.9 Indications of Module Variants (DIAG-CONFIG) For service purposes, the modules installed can be indicated with their variants and states of modification. Submenu DIAG-CONFIG offers access to the module indication. IEC-bus short command :DIAG:INFO:MOD? Menu selection: UTILITIES - DIAG - CONFIG 100.

  • Page 209: Voltage Indication Of Test Points (Diag-Tpoint)

    Utilities 2.11.10 Voltage Indication of Test Points (DIAG-TPOINT) Submenu DIAG-TPOINT offers access to internal test points. If a test point is switched on, the voltage indication is displayed in a window in the header field. For greater detail, see service manual (stock no. 1039.1856.24).

  • Page 210: Indications Of Service Data (Diag-Param)

    Utilities 2.11.11 Indications of Service Data (DIAG-PARAM) Submenu DIAG-PARAMETER offers access to different parameters such as serial number, software version, operating-hours counter and attenuator circuits. Menu selection: UTILITIES - DIAG - PARAM -30.0 100. 000 000 0 FREQ LEVEL FREQUENCY SYSTEM CONFIG SERIAL NO.

  • Page 211: Assigning Modulations To The [Mod On/Off] Key (Mod-Key)

    Utilities 2.11.13 Assigning Modulations to the [MOD ON/OFF] Key (MOD-KEY) The modulations can be switched on/off in the individual modulation menus and parallely by means of the [MOD ON/OFF] key. For which modulations the [MOD ON/OFF] key is effective can be defined in the UTILITIES-MOD KEY menu.

  • Page 212: Setting Auxiliary Inputs/Outputs (Aux-I / O)

    Utilities 2.11.14 Setting Auxiliary Inputs/Outputs (AUX-I / O) Menu UTILITIES - AUX I/O offers access to settings for the TRIGGER input, BLANK output and MARKER output. Sections Sweep, List Mode and Memory Sequence provide further information. Menu selection: UTILITIES - AUX I/O 100.

  • Page 213: Switching On/Off Beeper (Beeper)

    Utilities 2.11.15 Switching On/Off Beeper (BEEPER) Menu UTILITIES-BEEPER offers access to the switching on/off of the beeper. Note: Preset does not alter the current state (ON or OFF). Menu selection: UTILITIES - BEEPER 100. 000 000 0 - 30.0 FREQ LEVEL FREQUENCY SYSTEM...

  • Page 214: Installation Of Software Option

    Utilities 2.11.16 Installation of Software Option s are installed in the menu UTILITIES-INSTALL by means of a keyword. The keyword is part to the equipment supplied in case of a follow-up order. Menu UTILITIES-INSTALL gives access to the keyword entry. Menu selection: UTILITIES - INSTALL 100.

  • Page 215: The Help System

    Status 2.12 The Help System The SME has two help systems. On the one hand the context-sensitive help which is called by means of the HELP key and which gives information on the current menu. On the other hand, auxiliary texts can be selected according to headwords in alphabetical order by accessing menu HELP.

  • Page 216: Error Messages

    Error Messages 2.14 Error Messages The SME displays error and caution messages in a different manner, depending on how long, for a short period of time or permanently, the cause exists. The short-term message is displayed in the status line. Part of it Short-term message overwrites the status indications and disappears after approx.

  • Page 217: Remote Control

    Introduction/Brief Instructions Remote Control Introduction The instrument is equipped with an IEC-bus interface according to standard IEC 625.1/IEEE 488.1 and a RS-232 interface. The connectors are located at the rear of the instrument and permit to connect a controller for remote control. The instrument supports the SCPI version 1994.0 (Standard Commands for Programmable Instruments).

  • Page 218: Interface

    Introduction/Brief Instructions 3.2.2 RS-232 Interface It is assumed that the configuration of the RS-232 interface at the unit has not yet been changed. 1. Connect unit and controller using the 0-modem cable. 2. Enter the following command at the controller to configure the controller interface: mode com1: 9600, n, 8, 1 3.

  • Page 219: Remote Control Via Iec Bus

    Switchover to Remote Control 3.3.1 Remote Control via IEC Bus 3.3.1.1 Setting the Device Address The IEC-bus address of the instrument is factory-set to 28. It can be changed manually in the UTILITIES-SYSTEM-GPIB-ADDRESS menu or via IEC bus. Addresses 0 to 30 are permissible. Manually: À...

  • Page 220: Remote Control Via Rs-232-Interface

    Messages 3.3.2 Remote Control via RS-232-Interface 3.3.2.1 Setting the Transmission Parameters To enable an error-free and correct data transmission, the parameters of the unit and the controller should have the same setting. To prevent any problems during binary data transmission, the RS-232 interface is set for 8 data bits, no parity and 1 stop bit.

  • Page 221: Device Messages (Commands And Device Responses)

    Structure and Syntax of the Messages 3.4.2 Device Messages (Commands and Device Responses) Device messages are transferred on the data lines of the IEC bus, the "ATN" control line not being active. ASCII code is used. The device messages are largely identical for the two interfaces (IEC bus and RS232) .

  • Page 222: Structure Of A Command

    Structure and Syntax of the Messages 3.5.2 Structure of a Command The commands consist of a so-called header and, in most cases, one or more parameters. Header and parameter are separated by a "white space" (ASCII code 0 to 9, 11 to 32 decimal, e.g. blank). The headers may consist of several key words.
  • Page 223 Structure and Syntax of the Messages Some key words occur in several levels within one command system. Their effect depends on the structure of the command, that is to say, at which position in the header of a command they are inserted. Example: SOURce:FM:POLarity NORMal This command contains key word POLarity in the third command level.

  • Page 224: Structure Of A Command Line

    Structure and Syntax of the Messages 3.5.3 Structure of a Command Line A command line may consist of one or several commands. It is terminated by a <New Line>, a <New Line> with EOI or an EOI together with the last data byte. Quick BASIC automatically produces an EOI together with the last data byte.

  • Page 225: Parameter

    Structure and Syntax of the Messages 3.5.5 Parameter Most commands require a parameter to be specified. The parameters must be separated from the header by a "white space". Permissible parameters are numerical values, Boolean parameters, text, character strings and block data. The type of parameter required for the respective command and the permissible range of values are specified in the command description (see Section 3.6).
  • Page 226 Structure and Syntax of the Messages Block data Block data are a transmission format which is suitable for the transmission of large amounts of data. A command using a block data parameter has the following structure: Example: HEADer:HEADer #45168xxxxxxxx ASCII character # introduces the data block. The next number indicates how many of the following digits describe the length of the data block.

  • Page 227: Overview Of Syntax Elements

    Structure and Syntax of the Messages (hexadecimal rep.) The QuickBASIC-command reads: CALL IBWRT(generator%, "SOURCE:DM:DATA:DATA #15"+CHR$ (&h55)+CHR$(&h33)+CHR$(&h0F) +CHR$(&hFF)+CHR$(&h00)) – ''#' introduces the binary block. – ''1' indicates that 1 digit specifying the length will follow next, – ''5' is the length of the binary block (in bytes). –...

  • Page 228: Description Of Commands

    Description of Commands – Notation Description of Commands 3.6.1 Notation In the following sections, all commands implemented in the instrument are first listed in tables and then described in detail, separated according to the command system. The notation corresponds to the one of the SCPI standards to a large extent.
  • Page 229 Description of Commands – Notation Special characters A selection of key words with an identical effect exists for several commands. These key words are indicated in the same line, they are separated by a vertical stroke. Only one of these key words has to be indicated in the header of the command.

  • Page 230: Common Commands

    Common Commands 3.6.2 Common Commands The common commands are taken from the IEEE 488.2 (IEC 625-2) standard. Same commands have the same effect on different devices. The headers of these commands consist of an asterisk "*" followed by three letters. Many common commands refer to the status reporting system which is described in detail in Section 3.8.

  • Page 231: Table 3-2 Device Response To *Opt

    Common Commands *ESR? STANDARD EVENT STATUS QUERY returns the contents of the event status register in decimal form (0 to 255) and subsequently sets the register to zero. *IDN? IDENTIFICATION QUERY queries the instrument identification. The device response is for example: "Rohde&Schwarz, SME03,00000001, 1.03" 03 = variant identification 00000001= serial number 1.03 = firmware version number...
  • Page 232 Common Commands *PRE 0 to 255 PARALLEL POLL REGISTER ENABLE sets the parallel poll enable register to the value indicated. Query *PRE? returns the contents of the parallel poll enable register in decimal form. *PSC 0 | 1 POWER ON STATUS CLEAR determines whether the contents of the ENABle registers is maintained or reset in switching on.

  • Page 233: Abort System

    ABORt 3.6.3 ABORt System The ABORt system contains the commands to abort actions triggered. After an action has been aborted, it can be triggered again at once. All commands trigger an event, thus they have no *RST value. Further commands for the trigger system of the SME can be found in the TRIGger system. Command Parameter Default...

  • Page 234: Calibration-System

    CALibration 3.6.4 CALibration-System The CALibration system contains the commands to calibrate the SME. On triggering the calibration by means of :MEASure , response "0" displays a faultless calibration, response "1" means that an error has occurred during calibration. As to the meaning of the data in the case of query :DATA?, cf. Chapter 2, Section "Calibration".
  • Page 235 CALibration :CALibration:LEVel This node provides the commands for the management of the level correction table. The corresponding data are permanently stored in the instrument and cannot be changed. The instrument includes different level correction tables. The tables to be used are selected depending on the set frequency and the pulse modulator switched on (internal or external).
  • Page 236 CALibration :CALibration:PULSe The commands to calibrate the pulse generator are under this node (option SM-B4). :CALibration:PULSe[:MEASure]? The command triggers a calibration measurement. The command triggers an event and thus has no *RST value. Example: Response: 0 :CAL:PULS:MEAS? :CALibration:PULSe:DATA? The command queries the correction data. It returns the correction data as two integers separated by a comma.

  • Page 237: Diagnostic-System

    DIAGnostic 3.6.5 DIAGnostic-System The DIAGnostic system contains the commands for diagnostic test and service of the instrument. SCPI does not define DIAGnostic commands, the commands listed here are SME-specific. All DIAGnostic commands are queries which are not influenced by *RST. Hence no default setting values are stated. Command Parameter Default...
  • Page 238 DIAGnostic :DIAGnostic:INFO:CCOunt:POWer? The command queries the number of switch-on processes. Example: Response: 258 :DIAG:INFO:CCO:POW? :DIAGnostic:INFO:MODules? The command queries the modules existing in the instrument with their model and state-of-modification numbers. The response supplied is a list in which the different entries are separated by commas.
  • Page 239 DIAGnostic :DIAGnostic:XMEM:CHECksum[:TOTal]? This command queries the overall checksum for the memory extension. Beforehand, the checksum has to be calculated using :CALCulate. Example: Response: 178034 :DIAG:XMEM:CHEC? :DIAGnostic:XMEM:CHECksum:DATA? This command queries the overall checksum for the DATA section of the memory extension data. In the 8M*1 mode, this checksum is identical with the overall checksum.

  • Page 240: Display-System

    DISPlay 3.6.6 DISPLAY-System This system contains the commands to configure the screen. If system security is activated using command SYSTem:SECurity ON, the display cannot be switched on and off arbitrarily (cf. below) Command Parameter Default Remark Unit :DISPlay :ANNotation ON | OFF [:ALL] ON | OFF :AMPLitude...

  • Page 241: Format-System

    FORMat 3.6.7 FORMat-System This system contains the commands determining the format of the data the SME returns to the controller. All queries returning a list of numeric data or block data are concerned. With each of these commands, this connection is pointed to in the description. Command Parameter Default...

  • Page 242: Memory System

    OUTPut 3.6.8 MEMory System This system contains the commands for the memory management of the SME. Command Parameter Default Remark Unit Query only :MEMory :NSTates? :MEMory:NSTates? The command returns the number of *SAV/*RCL memories available. The SME has 50 *SAV/*RCL memories in total. Example: Response: 50 :MEM:NST?
  • Page 243 MEMory / OUTPut :OUTPut:BLANk:POLarity NORMal | INVerted The command sets the polarity of the BLANk signal. NORMal The active BLANk state is indicated by the more positive or higher output voltage. INVers The active BLANk state is indicated by the more negative or lower output voltage. Example: RST value is NORM :OUTP:BLAN:POL NORM...

  • Page 244: Output2 System

    OUTPut2 3.6.10 OUTPut2 System This system contains the commands specifying the characteristics of the LF output socket Command Parameter Default Remark Unit :OUTPut2 0 | 2 Option SM-B2 :SOURce MPX | PILot Option SM-B6 :STEReo ON | OFF Option SM-B6 [:STATe] 0 V to 4 V :VOLTage...

  • Page 245: Source-System

    SOURce 3.6.11 SOURce-System This system contains the commands to configure the RF signal source. Keyword SOURce is optional, i.e., it can be omitted. The LF signal sources (options SM-B2 and SM-B6) are configured in the SOURce0|2 system (cf. Section 3.6.12). The following subsystems are realized in the instrument: Subsystem Settings...

  • Page 246: Source:am Subsystem

    SOURce:AM 3.6.11.1 SOURce:AM Subsystem This subsystem contains the commands to control the amplitude modulation. Up to two LF generators which serve as internal modulation sources can be fitted in the instrument (options SM-B2 and SM-B6). Part of their settings is effected under SOURce0|2. Command Parameter Default...
  • Page 247 SOURce:AM [:SOURce]:AM:INTernal1|2:FREQuency 400 Hz | 1 kHz | 3 kHz | 15 kHz or 0.1 Hz to 500 kHz (option SM-B2)or 0.1 Hz to 1MHz (option SM-B6) The command sets the modulation frequency. Only certain specified ranges are permissible depending on the equipment of the instrument. If neither SM-B2 nor SM-B6 are fitted, only INT1 is permissible and values 400 Hz, 1 kHz, 3 kHz and 15 kHz are true.

  • Page 248: Source:correction Subsystem

    SOURce:CORRection 3.6.11.2 SOURce:CORRection Subsystem The CORRection subsystem permits a correction of the output level. The correction is effected by adding user-defined table values to the output level as a function of the RF frequency. In the SME, this subsystem serves to select, transmit and switch on USER-CORRECTION tables (see Chapter 2, Section "User Correction (UCOR)"...
  • Page 249 SOURce:CORRection [:SOURce]:CORRection:CSET:DATA The commands to edit the UCOR tables are under this node. [:SOURce]:CORRection:CSET:DATA:FREQuency 5 kHz to 1.5 GHz {,5 kHz to 1.5 GHz} SME03E/03/06: to 2.2/3/6 GHz command transmits frequency data table selected using :SOURce:CORRection:CSET. *RST does not influence data lists. Example: :SOUR:CORR:CSET:DATA:FREQ 100MHz,102MHz,103MHz,to [:SOURce]:CORRection:CSET:DATA:POWer -40dB to 6dB {,-40dB to 6dB}...

  • Page 250: Source:dm Subsystem

    SOURce:DM 3.6.11.3 SOURce:DM Subsystem In this subsystem, the types of digital modulation are checked. A difference is made between basic modulations (GMSK, GFSK, QPSK, FSK, 4FSK and FFSK) and complex modulations (ERMES, FLEX, POCSAG). The common characteristics of all basic modulations are set under node [:BASic], the common characteristics of all complex modulations under :COMPlex.
  • Page 251 SOURce:DM Command Parameter Default Unit Remark [:SOURce] Option SME-B11 :COMPlex :CLOCk [:SOURce] INT | EXT :GMSK :STANdard GSM | PCN | CDPD | MC9 | MOBitex | DSRR | MD24 to No query MD192 :BRATe 2.4 to 1000kb/s 0.2 | 0.25 | 0.3 | 0.4 | 0.5 :FILTer :DCODer ON | OFF...
  • Page 252 SOURce:DM [:SOURce]:DM:MGRoup? The command queries the selected type of modulation. „BAS“ is returned for the basic modula- tions GFSK, GMSK, QPSK, FSK, FSK4, and FFSK. „COMP“ is returned for the complex protocols ERMES, FLEX, and POCSAG. The command is a query and hence has no *RST value. Example: Response: „BAS“...
  • Page 253 SOURce:DM [:SOURce]:DM[:BASic]:CLOCk:POLarity NORMal | INVerted The command sets the polarity of the time base used. NORMal The data are accepted with a rising edge (external clock) or can be tapped at the DATA socket with a rising edge (internal clock). INVerted The data are accepted with a falling edge (external clock) or can be tapped at the DATA socket with a falling edge (internal clock).
  • Page 254 SOURce:DM [:SOURce]:DM[:BASic]:DATA:FREE? This command deletes all data lists, with the exception of list "XMEM" (cf Chapter 2, Section "DM Memory Extension"). *RST has no influence on data lists. Example: Answer: 2400, 200 :SOUR:DM:BAS:DATA:FREE? [:SOURce]:DM[:BASic]:DATA:SELect "Name" This command selects the data list indicated. Working with the data list is only possible after selection.
  • Page 255 SOURce:DM [:SOURce]:DM[:BASic]:DATA:BURSt 0 | 1 {, 0 | 1} The command transmits the burst data output at the BURSt output socket. List "XMEM", DM memory extension, can only be written into with BURSt data if DM:BAS:DATA:XMEM:MODE is set to ALL. Only numbers 0 or 1 are permissible. "1" corresponds to high level at the burst socket. The data can also be transmitted as block data (cf.
  • Page 256 SOURce:DM [:SOURce]:DM[:BASic]:DATA:XMEM:LENGth:AUTO ON | OFF This command switches the automatic length identification in recording the data on or off. The command is only effective with a data transmission via IEC bus, however, if the data are recorded from an external source, it is not. The transmitted data specify the length of the data sequence.
  • Page 257 SOURce:DM [:SOURce]:DM[:BASic]:PRBS:LENGth 9 | 15 | 20 | 21 | 23 The command specifies the length of the pseudo random sequence according to the following equation: LENGth) Length = (2 Example: *RST value is 9 Bit :SOUR:DM:BAS:PRBS:LENG 9 :SOURce]:DM:COMPlex:CLOCk:SOURce INT | EXT The command selects the clock source for radiocommunication services ERMes, FLEX, REFLEX and POCSag.
  • Page 258 SOURce:DM [:SOURce]:DM:GMSK:STANdard Short command Command sequence :DM:GMSK:STANdard MD24W :DM:GMSK:FILTer 0,5 :DM:GMSK:BRATe 2,4 kb/s :DM:GMSK:DCODer OFF :DM:GMSK:POLarity NORM :DM:GMSK:STANdard MD36N :DM:GMSK:FILTer 0,3 :DM:GMSK:BRATe 3,6 kb/s :DM:GMSK:DCODer OFF :DM:GMSK:POLarity NORM :DM:GMSK:STANdard MD36W :DM:GMSK:FILTer 0.5 :DM:GMSK:BRATe 23.6 kb/s :DM:GMSK:DCODer OFF :DM:GMSK:POLarity NORM :DM:GMSK:STANdard MD48N :DM:GMSK:FILTer 0.3 :DM:GMSK:BRATe 4.8 kb/s :DM:GMSK:DCODer OFF...
  • Page 259 SOURce:DM [:SOURce]:DM:GMSK:BRATe 2.4 kb/s to 1000 kb/s The command sets the bit rate of the modulation. The value of SOURce:DM:GMSK: FILTer is adapted if necessary to obtain a valid setting. Valid setting are listeted in the table to Section "GMSK Modulation" in Chapter 2. Example: *RST value is 270.833kb/s :SOUR:DM:GMSK:BRAT 8000b/s...
  • Page 260 SOURce:DM [:SOURce]:DM:GFSK:STANdard DECT | CT2 | CT3 This short-form command sets the parameters shown in the table to the values specified by the standards (cf. table). The command is an abbreviation of the commands listed in the table. Hence it neither has a query form nor an *RST value. Short command Command sequence :DM:GFSK:STANdard DECT...
  • Page 261 SOURce:DM [:SOURce]:DM:GFSK:DSLope ON | OFF The command specifies the level reduction for the modulation. The rise and fall time of the level reduction correspond to DECT power ramping. Command DM:DATA:ALEVel:MODE specifies the level reduction. Example: *RST value is OFF :SOUR:DM:GFSK:DSL ON [:SOURce]:DM:GFSK:POLarity NORMal | INVerted The command specifies the polarity of the modulation.
  • Page 262 SOURce:DM :SOURce]:DM:QPSK:STANdard :DM:QPSK:STANdard TETRa :DM:QPSK:TYPE PI4Dqpsk :DM:QPSK:BRATe 36 kb/s :DM:QPSK:CODing NADC :DM:QPSK:FILTer SCOS, 0.35 :DM:QPSK:POLarity NORM :DM:QPSK:STANdard TFTS :DM:QPSK:TYPE PI4Dqpsk :DM:QPSK:BRATe 44.2 kb/s :DM:QPSK:CODing TFTS :DM:QPSK:FILTer SCOS, 0.4 :DM:QPSK:POLarity NORM :DM:QPSK:STANdard MSAT :DM:QPSK:TYPE QPSK :DM:QPSK:BRATe 6.75 kb/s :DM:QPSK:CODing MSAT :DM:QPSK:FILTer SCOS, 0.6 :DM:QPSK:POLarity NORM :DM:QPSK:STANdard INMarsat :DM:QPSK:TYPE...
  • Page 263 SOURce:DM [:SOURce]:DM:FSK The commands to set the data source for the digital frequency modulation are under this node. FSK (Frequency Shift Keying) always has exactly two states. In contrast to the other types of modulation, there are trigger commands for FSK and FSK4 which also permit a single processing of the data list (cf.
  • Page 264 SOURce:DM [:SOURce]:DM:FSK:FILTer GAUSs, 2.73 | BESSel, 1.22 | BESSel, 2.44 | OFF The command activates or deactivates the selected filter. Deactivating the filter is possible at any time. Activating the filter is only possible when values DEViation and BITRate correspond to the standard values.
  • Page 265 SOURce:DM [:SOURce]:DM:FSK4:CODing ERMes | APCO| MODacom | FLEX The command specifies according to which standard the coding between binary data and generated signal is performed. Example: *RST value is ERMes :SOUR:DM:FSK4:COD ERM [:SOURce]:DM:FSK4:DEViation 0.01 to 400 kHz This command sets the frequency deviation of the modulation. Example: *RST value is 4687.5 :SOUR:DM:FSK4:DEV 4.6875kHz...

  • Page 266: Source:ermes Subsystem

    SOURce:ERMes 3.6.11.4 SOURce:ERMes Subsystem This subsystem contains the commands to set the ERMES signal. ERMES uses a 4FSK modulation. The parameters of the DM:FSK4 subsystem, however, are not influenced by settings in the ERMes subsystem. Switchover between the output of useful or filler subsequences is by means of the TRIGger:DM subsystem.
  • Page 267 SOURce:ERMes [:SOURce]:ERMes:STATe:AUTO ON | OFF The command specifies wether the ERMES data are to be newly calculated on switching from ERMes:STATe OFF to :STATe ON. The data are newly recalculated and written into list "XMEM" The existing contents are kept in the memory extension. This can be used to transfer data generated or changed by an external program to the memory extension and thus generate a ERMes telegram.
  • Page 268 SOURce:ERMes [:SOURce]:ERMes:MESSage:IA | IADDress 0 to 262143 The command determines the address ("Inital ADDress") of the pager addressed. Each pager has an own, nonrecurring address. 0 are 262143 are valid values, i.e. all numbers which can be indicated using 18 bits. *RST value is 0 Example: :SOUR:ERM:MESS:IA 0...
  • Page 269 SOURce:ERMes [:SOURce]:ERMes:MESSage:TONE 0 to 15 The command specifies which of the 16 tones possible (8 normal, 8 urgent) are transmitted in an tone-only message. This command is only effective if CATegory TONE has been selected. Example: *RST value is 0 :SOUR:ERM:MESS:TONE 7 [:SOURce]:ERMes:NINFormation The commands to set the data denoting the network (the SME simulates) in greater detail are...
  • Page 270 SOURce:ERMes [:SOURce]:ERMes:SI|SINFormation:ETI ON | OFF The command sets the External Traffic Indicator Bit. *RST value is OFF Example: :SOUR:ERM:SI:ETI ON [:SOURce]:ERMes:SI|SINFormation:FSI 0 to 30 The command sets the Frequency Subset Indicator. According to the standard, one-channel networks have an FSI of 30. *RST value is 30 Example: :SOUR:ERM:SI:FSI 20...

  • Page 271: Source:flex Subsystem

    SOURce:FLEX 3.6.11.5 SOURce:FLEX Subsystem This subsystem contains the commands for setting the FLEX signal. Like ERMES, FLEX is a radiocommunication service that makes for convenient paging. When equipped with the SME-B41 (FLEX), SME-B11 (DM coder) and SME B12 (DM memory extension) options, the SME generates call signals complying to the FLEX standard.
  • Page 272 SOURce:FLEX [:SOURce]:FLEX:STATe ON | OFF The command switches the FLEX signal on; all other activated DM modulations are switched off. In contrast to ERMES, the RF frequency is not changed. Every switchover from OFF to ON results in a recalculation of the memory extension data and their entry into the list "XMEM"...
  • Page 273 SOURce:FLEX [:SOURce]:FLEX:ERRor:WORD 0 to 87 The command determines the position of the word to be falsified. The words are numbered from block 0, word 0 to block 10, word 7 of a frame. The sync part and the frame information word cannot be falsified.
  • Page 274 SOURce:FLEX [:SOURce]:FLEX:PHASe A | B | C | D | AB | AC | AD | BC | BD | CD | ABC | ABD | ACD | BCD | ABCD | The command determines in which phase (A to D) the message is to be transmitted. Since each frame lasts 1.875 sec independent of the modulation and more data can be transmitted at bit rates higher than 1600 bps, several independent channels ("phases") are bit-multiplexed.
  • Page 275 SOURce:FLEX [:SOURce]:FLEX:MESSage:ALPHanumeric[:SELect] "FOX" | "ALPHA" | "USER1" | "USER2" | "USER3" | "USER4" This node contains commands for the determination of the contents of the alphanumeric and the secured messages. There is one common character set for the two types of messages. These commands can only be activated if FLEX:MESSage:CATegory ALPHanumeric or SECure is selected.: "FOX"...
  • Page 276 SOURce:FLEX [:SOURce]:FLEX:MESSage:BINary:DDIRection LEFT | RIGHt The command determines the direction of binary messages. LEFT Display from left to right. RIGHtDisplay from right to left. *RST value is LEFT Example: :SOUR:FLEX:MESS:BIN:TYPE LEFT [:SOURce]:FLEX:MESSage:MNUMbering ON | OFF The command determines whether every message is to be assigned with a number and whether this information is to be evaluated when received by the pager.
  • Page 277 SOURce:FLEX [:SOURce]:FLEX:SI|SINFormation This node contains commands used to set the data of the transmitting system (see FLEX standard). These data are sent to the pager. CZONe, DATE, and TIME are transmitted every hour in cycle 0, frame 0. [:SOURce]:FLEX:SI|SINFormation:COLLapse 0 to 7 The command indicates the number of bits (0 to 7) the pager uses to compare its "built-in"...
  • Page 278 SOURce:FLEX [:SOURce]:FLEX:SI|SINFormation: CZONe 0 to 31 This command determines the coverage zone. *RST value is 0 Example: :SOUR:FLEX:SI:CZON 0 [:SOURce]:FLEX:SI|SINFormation: STMF 0 to 31 The command allows the entry of any input value of the four traffic management flags for SSID. IEC-bus command: *RST value is 15 :SOUR:FLEX:SINF:STMF 15...

  • Page 279: Source:fm Subsystem

    SOURce:FM 3.6.11.6 SOURce:FM Subsystem This subsystem contains the commands to check the frequency modulation and to set the parameters of the modulation signal. The SME can be equipped with two independent frequency modulators (option SM-B5). They are differentiated by a suffix after FM. SOURce:FM1 SOURce:FM2 Command...
  • Page 280 SOURce:FM [:SOURce]:FM1|2:INTernal The settings for the internal FM generators are effected under this node. For FM1, this is always LF generator 1, for FM2, always LF generator 2. Here the same hardware is set for FM1, PM1, AM:INT1 as well as SOURce0, just like for FM2, PM2 and AM:INT2 as well as SOURce2. This means that, e.g., the following commands are coupled with each other and have the same effect: SOUR:AM:INT2:FREQ SOUR:FM2:INT:FREQ...

  • Page 281: Source:frequency Subsystem

    SOURce:FREQuency 3.6.11.7 SOURce:FREQuency Subsystem This subsystem contains the commands for the frequency settings of the RF source including the sweeps. Command Parameter Default Remark Unit [:SOURce] SME03E/03/06: :FREQuency 5 kHz to 1.5 GHz 5 kHz to 2.2/3/6 GHz :CENTer 5 kHz to 1.5 GHz 5 kHz to 2.2/3/6 GHz [:CW|:FIXed] INCLude | EXCLude...
  • Page 282 SOURce:FREQuency [:SOURce]:FREQuency:MANual 5 kHz to 1.5 GHz (SME03E/03/06: 5 kHz to 2.2/3/6 GHz) command sets frequency SOURce:SWEep:MODE MANual SOURce:FREQuency:MODE SWEep are set. Only frequency values between the settings with :SOURce:FREQuency:STARt and :SOURce:FREQuency:STOP are permitted. (As to specified range, cf. FREQuency:CENTer) *RST value is 100 MHz Example: :SOUR:FREQ:MAN 500MHz...
  • Page 283 SOURce:FREQuency [:SOURce]:FREQuency:STOP 5 kHz to 1.5 GHz (SME03E/03/06: 5 kHz to 2.2/3/6 GHz) This command indicates the final value of the frequency for the sweep operation (see STARt as well). (As to specified range, cf. FREQuency:CENTer). *RST value is 500MHz Example: :SOUR:FREQ:STOP 100MHz [:SOURce]:FREQuency:STEP...

  • Page 284: Source:ils Subsystem

    SOURce:ILS 3.6.11.8 SOURce:ILS Subsystem This subsystem contains the commands to control the characteristics of the test signals for ILS (Instrument Landing System) (option SM-B6, multifunction generator). Command Parameter Default Remark Unit [:SOURce] Option SM-B6 :ILS ON | OFF :STATe INT2 | INT2, EXT :SOURce GS | GSLope | LOCalizer :TYPE...
  • Page 285 SOURce:ILS [:SOURce]:ILS:STATe ON | OFF The command switches the generation of ILS signals on or off. STATe ON is only possible if no amplitude modulation is switched on. Modulation generator 2 must not be switched simultaneously as a source for PM or FM either. Example: *RST value is OFF :SOUR:ILS:STAT ON...
  • Page 286 SOURce:ILS [:SOURce]:ILS[:GS|GSLope]:COMid[:STATe] ON | OFF The command activates or deactivates the ComId signal. *RST value is OFF Example: :SOUR:ILS:GS:COM:STAT ON [:SOURce]:ILS[:GS|GSLope]:COMid:FREQuency 0.1 to 20 000 Hz The command sets the frequency of the ComId signal. *RST value is 1020 Hz Example: :SOUR:ILS:GS:COM:FREQ 1020 [:SOURce]:ILS[:GS|GSLope]:COMid:DEPTh 0 to 100 PCT...
  • Page 287 SOURce:ILS [:SOURce]:ILS[:GS|GSLope]:LLOBe The commands to configure the signal of the lower ILS-GS antenna lobe are under this node (Lower LOBe). [:SOURce]:ILS[:GS|GSLope]:LLOBe[:FREQuency] 100 to 200 Hz The command sets the frequency. Normally, it is 150 Hz. This parameter is coupled with ratio SOURce:ILS:GS:ULOBe:FREQuency.
  • Page 288 SOURce:ILS [:SOURce]:ILS:LOCalizer The commands to specify the characteristics of the LOCalizerlocalizer modulation signal are under this node. Whether this signal is output, however, is determined by command SOURce:ILS:TYPE. [:SOURce]:ILS:LOCalizer:MODE NORM | LLOBe | RLOBe The command specifies the type of the ILS-LOC signal generated. NORM ILS-LOC-Signal LLOBe...
  • Page 289 SOURce:ILS [:SOURce]:ILS:LOCalizer:DDM (Difference in Depth of Modulation) The commands to set the modulation depth difference between the signal of the left lobe (90 Hz) and the right lobe (150 Hz) are under this node. [:SOURce]:ILS:LOCalizer:DDM:CURRENT -387 to +387 uA The command alternatively enters the DDM value as a current by means of the ILS indicating instrument.
  • Page 290 SOURce:ILS [:SOURce]:ILS:LOCalizer:RLOBe The commands to configure the signal of the right ILS-LOC antenna lobe (Right LOBe) are under this node. [:SOURce]:ILS:LOCalizer:RLOBe[:FREQuency] 100 to 200 Hz The command sets the frequency. Normally, it is 150 Hz. This parameter is coupled with ratio SOURce:ILS:LOC:LLOBe:FREQuency.

  • Page 291: Source:list Subsystem

    SOURce:LIST 3.6.11.9 SOURce:LIST Subsystem This subsystem contains the commands for the LIST operating mode of the RF generator. Processing the lists is controlled by the TRIGger:LIST subsystem. Each list consists of a FREQuency, POWer and DWELl content. The list contents must all be of the same length except for contents of length 1. This is interpreted as if the content had the same length as the other contents and all values were equal to the first value.
  • Page 292 SOURce:LIST [:SOURce]:LIST:DWELl 1 ms to 1 s {, 1 ms to 1 s} For every item of the FREQuency or POWer/VOLTage list contents, the command contains the time the instrument "dwells" at this item. Note: The RF generator is not in a position to allocate different times to the individual items of the FREQuency and POWer list contents.
  • Page 293 SOURce:LIST [:SOURce]:LIST:MODE AUTO | STEP The command indicates the mode in which the list is to be processed (by analogy with SOURce:SWEep:MODE). AUTOEach trigger event triggers a complete list run. STEP Each trigger event triggers only one step in processing the list. Example: *RST value is AUTO :SOUR:LIST:MODE STEP...

  • Page 294: Source:marker Subsystem

    SOURce:MARKer 3.6.11.10 SOURce:MARKer Subsystem This subsystem contains the commands to check the marker generation with sweeps. The SME has three markers each for frequency and level sweeps which are differentiated by a numeric suffix after MARKer. The settings for frequency sweep and level sweep marker are independent of each other. Command Parameter Default...
  • Page 295 SOURce:MARKer [:SOURce]:MARKer1|2|3[:FSWeep][:STATe] ON | OFF The command switches the marker selected by the numeric suffix with MARKer on or off. Example: *RST value is OFF :SOUR:MARK1:FSW:STAT ON [:SOURce]:MARKer1|2|3:PSWeep The commands for the markers with level sweep are under this node (Power sweep). The three markers are differentiated by a numeric suffix after MARKer.

  • Page 296: Source:mbeacon Subsystem

    SOURce:MBEacon 3.6.11.11 SOURce:MBEacon Subsystem This subsystem contains the commands to control the characteristics of the marker signals (Marker BEacon) as they are used to mark the distance in the approach range of airports (option SM-B6, multifunction generator). Command Parameter Default Remark Unit [:SOURce]...

  • Page 297: Source:phase Subsystem

    SOURce:PHASe 3.6.11.12 SOURce:PHASe Subsystem Command Parameter Default Remark Unit [:SOURce] :PHASe -360 deg to +360 deg [:ADJust] No query :REFerence [:SOURce]:PHASe[:ADJust] -360 deg to +360 deg The command indicates the phase between output signal and reference oscillator signal. This setting is only accepted using SOURce:PHASe:REFerence (cf. below). An indication in RADian is possible.

  • Page 298: Source:pm Subsystem

    SOURce:PM 3.6.11.13 SOURce:PM Subsystem This subsystem contains the commands to check the phase modulation and to set the parameters of the modulation signal. The SME can be equipped with two independent phase modulators, PM1 and PM2 (option SM-B5). They are differentiated by a suffix after PM. SOURce:PM1 SOURce:PM2 Command...
  • Page 299 SOURce:PM [:SOURce]:PM1|2:INTernal The settings for the internal PM generators are effected under this node. For PM1, this is always LF generator 1, for PM2, always LF generator 2. Here the same hardware is set for FM1, PM1, AM::INT1 as well as SOURce0, for FM2, PM2 and AM:INT2 and SOURce2 as well. This means that, e.g., the following commands are coupled with each other and have the same effect: SOUR:AM:INT2:FREQ SOUR:FM2:INT:FREQ...

  • Page 300: Source:pocsag Subsystem

    SOURce:POCSag 3.6.11.14 SOURce:POCSag Subsystem POCSAG is a standard which in its various implementations (e.g. CITYRUF, SCALL) allows convenient paging. When equipped with the SME-B42 (POCSAG), SME-B11 (DM coder) and SME B12 (DM memory extension) options, the SME generates call signals complying to the POCSAG standard. All essential parameters and the message to be transmitted are freely selectable.
  • Page 301 SOURce:POCSag [:SOURce]:POCSag:DEViation 1.5 | 2.0 | 3.0 | 3.5 | 4.0 | 4.5 kHz The command enters the input value of the frequency deviation for the set modulation. For FSK 4.0 kHz and 4.5 kHz are possible, for FFSK 1.5 kHz, 2.0 kHz, 3.0 kHz, 3.5 kHz, 4.0 kHz and 4.5 kHz.
  • Page 302 SOURce:POCSag [:SOURce]:POCSag:MESSage:SWORd POCSag | INForuf The command selects the contents of the sync word. This word distinguishes between the various types of paging services. POCSAG 0x7CD215D8; also used for CITYRUF INFORUF 0x7CD21436. *RST value is POCSag Example: :SOUR:POCS:MESS:SWOR POCS [:SOURce]:POCSag:MESSage:TONE A | B | C | D The command selects the tone which is transmitted during category TONE.
  • Page 303 SOURce:POCSag [:SOURce]:POCSag:POLarity NORMal | INVerted The command sets the polarity of the modulation. NORMal The polarity of the modulation is set according to standard POCSAG. INVerted The polarity of the modulation is inverted. Example : *RST value is NORM :SOUR:POCS:POL NORM [:SOURce]:POCSag:TSLice 2 to 120 s The command determines the length of the time slice.

  • Page 304: Source:power Subsystem

    SOURce:POWer 3.6.11.15 SOURce:POWer Subsystem This subsystem contains the commands to set the output level, the level control and the level correction of the RF signal. Other units can be used instead of dBm: • by indication directly after the numeric value (Example :POW 0.5V), •...
  • Page 305 SOURce:POWer [:SOURce]:POWer:ALC[:STATe] ON | OFFFehler! Textmarke nicht definiert. The command switches level control on or off. Level control is permanently switched on. Level control is switched on for a short period of time if the level changes. Example: *RST value is ON :SOUR:POW :ALC:STAT ON [:SOURce]:POWer[:LEVel][:IMMediate][:AMPLitude] -144 to +16 dBm The command sets the RF output level in operating mode CW.
  • Page 306 SOURce:POWer [:SOURce]:POWer:LIMit[:AMPLitude] -144 to + 16 dBm The command limits the maximum Rf output level in operating mode CW and SWEEP. It does not influence the display LEVEL and the answer to query POW?. Example: *RST value is +16 dBm :SOUR:POW:LIM:AMPL 15 [:SOURce]:POWer:MANual -144 to +16 dBm command...

  • Page 307: Source:pulm Subsystem

    SOURce:PULM 3.6.11.16 SOURce:PULM Subsystem This subsystem contains the commands to check the pulse modulation and to set the parameters of the modulation signal. The internal pulse generator (option SM-B4) is set in the SOURce:PULSe subsystem. Command Parameter Default Remark Unit [:SOURce] Option SM-B3, SM-B4, :PULM...

  • Page 308: Source:pulse Subsystem

    SOURce:PULSe 3.6.11.17 SOURce:PULSe Subsystem This subsystem contains the commands to set the pulse generator (option SM-B4). The pulse generation is triggered on principle, with the trigger certainly being able to be set to "free run" using TRIGger:PULSe:SOURce AUTO as well. The pulse modulation (option SM-B3) is set in the SOURce:PULM subsystem.

  • Page 309: Source:reflex25 Subsystem

    SOURce:REFLex25 3.6.11.18 SOURce:REFLex25 Subsystem This subsystem contains the commands for setting the ReFLEX25 signal. The telegram generated by the SME complies with the ReFLEX25 Protocol Specification Document Version 2.4 dated March 15, 1996, issued by the Motorola Advanced Messaging Group. ReFLEX25 can only be activated if the SME is equipped with the SME-B43, SME-B11 and SME-B12 options.
  • Page 310 SOURce:REFLex25 [:SOURce]:REFLex25:STATe ON | OFF This command switches on ReFLEX25. The status line displays the cycle and frame number and the type of output data as well as the word “RFLX“ (see table in the Manual Operation part under FRAME CONTENTS). When ReFLEX25 is switched on, all other DM modulations are automatically switched off.
  • Page 311 SOURce:REFLex25 [:SOURce]:REFLex25:MESSage:ALPHanumeric[:SELect] “name“ This command selects the alphanumeric message. Valid values: Selection of an alphanumeric message. ALPHA „ABCD...“ (complete ReFLEX25 character set) USER1 to 4 4 messages that can be freely varied using command REFL25:MESS:ALPH:DATA The parameter is not influenced by *RST. Example: SOUR:REFL25:MESS:ALPH:SEL “FOX“...
  • Page 312 SOURce:REFLex25 [:SOURce]:REFLex25:SI | SINFormation:SZONe 0 to 127 This command sets the subzone within a transmit zone. The significance is specified by the network operator. The value 0 is referred to as “restricted“ in the ReFLEX25 documentation, but can be set for test purposes. The upper limit is 127. *RST value is 1 Example: SOUR:REFL25:SI:SZON...
  • Page 313 SOURce:REFLex25 [:SOURce]:REFLex25:SI | SINFormation:RCHannel:SPEed 800 | 1600 | 6400 | 9600 bps This command selects the bit rate of the reverse channel. 800bps, 1600bps, 6400bps and 9600bps are available. The set value is transferred to the receiver and has no further effects. Example: *RST value is 800 bps SOUR:REFL25:SI:RCH:SPE 800 bps...
  • Page 314 SOURce:REFLex25 [:SOURce]:REFLex25:FCONtent “I|A|N|T|S|R|B|F|O|1|2|3|4|5|6|7|8|9 [,I|A|N|T|S|R|B|F|O|1|2|3|4|5|6|7|8|9]“ This command specifies the contents of the max. 128 frames the SME sends during a cycle. A string with a length of max. 128 characters can be transferred. Each of the 128 frames is represented by a character which may assume one of the following values: Character Status display Frame contents IDLE ReFLEX25 frame without addresses and message contents...

  • Page 315: Source:roscillator Subsystem

    SOURce:ROSCillator 3.6.11.19 SOURce:ROSCillator Subsystem This subsystem contains the commands to set the external and internal reference oscillator. Command Parameter Default Remark Unit [:SOURce] :ROSCillator :EXTernal 1 to 16 MHz :FREQuency [:INTernal] :ADJust ON | OFF [:STATe] 0 to 4095 :VALue INTernal | EXTernal :SOURce [:SOURce]:ROSCillator:EXTernal...

  • Page 316: Source:stereo Subsystem

    SOURce:STEReo 3.6.11.20 SOURce:STEReo Subsystem This subsystem contains the commands to generate FM stereo multiplex signals conforming to standards according to the pilot-tone method (options SM-B5 and SM-B6). The modulation signal is output in addition at the LF output socket (cf. Section "OUTPut2 system" as well). Command Parameter Default...
  • Page 317 SOURce:STEReo [:SOURce]:STEReo:AUDio The commands to set the characteristics of the audio signals generated by the SME are under this node. [:SOURce]:STEReo:AUDio[:FREQuency] 0.1 Hz to 15 kHz The command sets the frequency of the audio signal. The frequency applies to both channels at the same time.
  • Page 318 SOURce:STEReo [:SOURce]:STEReo:ARI The commands to specify the characteristics of the ARI traffic channel signal are under this node. [:SOURce]:STEReo:ARI[:DEViation] 0 Hz to 10 kHz The command sets the deviation content of the unmodulated 57-kHz ARI auxiliary carrier. Example: *RST value is 4 kHz :SOUR:STER:ARI:DEV 4kHz [:SOURce]:STEReo:ARI:TYPE BK | DK | OFF The command specifies which identification is generated.

  • Page 319: Source:sweep Subsystem

    SOURce:SWEep 3.6.11.21 SOURce:SWEep Subsystem This subsystem contains the commands to check the RF sweep, i.e., sweeps of the RF generators. Sweeps triggered principle. frequency sweep activated command SOURce:FREQuency:MODE SWEep, the level sweep by command SOURce:POWer:MODE SWEep. Command Parameter Default Remark Unit [:SOURce] :SWEep...
  • Page 320 SOURce:SWEep [:SOURce]:SWEep[:FREQuency]:MODE AUTO | MANual | STEP The command specifies the run of the sweep. AUTOEach trigger triggers exactly one entire sweep cycle. MANual Each frequency step of the sweep is triggered by means of manual control or a SOURce:FREQuency:MANual command, the trigger system is not active. The frequency increases or decreases (depending on the direction of the shaft encoder) by the value indicated under [:SOURce]:FREQuency:STEP:INCRement.
  • Page 321 SOURce:SWEep [:SOURce]:SWEep:POWer:DWELl 10 ms to 5 s The command sets the dwell time per level step. Example: *RST value is 15 ms :SOUR:SWE:POW:DWEL 12ms [:SOURce]:SWEep:POWer:MODE AUTO | MANual | STEP The command specifies the run of the sweep. AUTOEach trigger triggers exactly one entire sweep cycle. MANual Each level step of the sweep is triggered by means of manual control or a SOURce:POWer:MANual command, the trigger system is not active.

  • Page 322: Source:vor Subsystem

    SOURce:VOR 3.6.11.22 SOURce:VOR Subsystem This subsystem contains the commands to control the characteristics of the test signals for VOR (VHF Omnidirectional Range) (option SM-B6, multifunction generator). Command Parameter Default Remark Unit [:SOURce] :VOR Option SM-B6 :STATe ON | OFF :SOURce INT2 | INT2, EXT :MODE NORM | VAR | SUBCarrier | FMSubcarrier...
  • Page 323 SOURce:VOR [:SOURce]:VOR:MODE NORM | VAR | SUBCarrier The command specifies the type of VOR signal generated. NORM VOR signal Amplitude modulation output signal with SOURce:VOR:VAR :FREQuency signal component (usually 30 Hz) of the VOR signal. The modulation depth is set under SOURce:VOR:VAR:DEPTh. SUBCarrier Amplitude modulation of the output signal with the unmodulated SOURce:VOR :SUBCarrier:FREQuency-FM carrier (usually 9960 Hz) of the VOR signal.
  • Page 324 SOURce:VOR [:SOURce]:VOR:REFerence[:DEViation] 0 to 960 Hz The command sets the frequency deviation of the reference signal on the FM carrier. Example: *RST value is 480 Hz :SOUR:VOR:REF:DEV 480 [:SOURce]:VOR:PRESet The command sets the frequency deviation of the reference signal on the FM carrier. :VOR:MODE NORM :VOR:SOUR INT2 :VOR 0deg...

  • Page 325: Source0|2 System

    SOURce0|2:FREQuency 3.6.12 SOURce0|2 System The SOURce0|2 system contains the commands to configure the LF signal sources. The following allocation is valid: SOURce0: Standard generator. Designated INT1 used modulation source (cf. command SOURce:AM:SOURce INT1, e.g.). The numbering as SOURce0 is different from the manual control.
  • Page 326 SOURce0|2:FREQuency :SOURce0|2:FREQuency[:CW | :FIXed] 400 Hz | 1 kHz | 3 kHz | 15 kHz or 0.1 Hz to 500 kHz or 0.1 Hz to 1 MHz The command sets the frequency for the CW mode. If neither SM-B2 nor SM-B6 are fitted, the values 400 Hz, 1 kHz, 3 kHz and 15 kHz are permissible for SOURce0.

  • Page 327: Source 0|2:Function-Subsystem

    SOURce0|2:FUNCtion 3.6.12.2 SOURce 0|2:FUNCtion-Subsystem This subsystem contains the commands specifying the waveform of the output signal. Command Parameter Default Remark Unit :SOURce0|2 :FUNCtion SINusoid | SQUare | TRIangle | PRNoise | Option SM-B2 / B6 [:SHAPe] SAWTooth Option SM-B6 :SOURce0|2:FUNCtion[:SHAPe] SINusoid | SQUare | TRIangle | PRNoise | SAWTooth The command specifies the waveform of the output signal.

  • Page 328: Source2:Marker-Subsystem

    SOURce2:MARKer 3.6.12.3 SOURce2:MARKer-Subsystem This subsystem contains the commands to check the marker generation in the case of LF sweeps. Operating mode SWEep is only possible for SOURce2. The three markers existing are differentiated by a numeric suffix after marker. Command Parameter Default Remark...

  • Page 329: Source2:Sweep-Subsystem

    SOURce2:SWEep 3.6.12.4 SOURce2:SWEep-Subsystem This subsystem contains the commands to check the LF sweep of SOURce2. Sweeps are triggered on principle. Command Parameter Default Remark Unit :SOURce2 Option SM-B2 :SWEep NORMal | LONG :BTIMe [:FREQuency] 1 ms to 1 s :DWELl AUTO | MANual | STEP :MODE Number...
  • Page 330 SOURce2:SWEep :SOURce2:SWEep[:FREQuency]:POINts Number The command determines the number of steps in a sweep. Instead of this command, commands :SOURce2:FREQuency:STEP:LINear and :SOURce2 :FREQuency:STEP:LOGarithmic should be used, as :SOURce2:SWEep:FREQuency: POINts has been adapted to the instrument characteristics in comparison to the SCPI command. The value of POINts depends on SPAN and STEP according to the following formulas.

  • Page 331: Status-System

    STATus 3.6.13 STATus-System This system contains the commands for the status reporting system (c.f. Section "Status Reporting System"). *RST has no influence on the status registers. Command Parameter Default Remark Unit :STATus :OPERation Query only [:EVENt]? Query only :CONDition? 0 to 32767 :PTRansition 0 to 32767 :NTRansition...
  • Page 332 STATus Example: :STAT:OPER:NTR 0 :STATus:OPERation:ENABle 0 to 32767 The command sets the bits of the ENABle register. This register selectively enables the individual events of the appropriate status event register for the sum bit in the status byte. Example: :STAT:OPER:ENAB 1 :STATus:PRESet The command resets the edge detectors and ENABle parts of all registers to a defined value.

  • Page 333: System-System

    SYSTem 3.6.14 SYSTem-System In this system, a number of commands for general functions which are not immediately related to signal generation, are combined. Command Parameter Default Remark Unit :SYSTem :BEEPer ON | OFF :STATe :COMMunicate :GPIB [:SELF] 0 to 30 :ADDRess :SERial :CONTrol...
  • Page 334 SYSTem :SYSTem:COMMunicate:GPIB The commands to check the IEC bus are under this node (GPIB = General Purpose Interface Bus) :SYSTem:COMMunicate:GPIB[:SELF]:ADDRess 1 to 30 The command sets the IEC bus instrument address. *RST value is 28 Example: :SYST:COMM:GPIB:ADDR 1 :SYSTem:COMMunicate:SERial The command to set the serial interface are under this node. The data format is fixedly set to 8 data bits, no parity and 1 stop bit.
  • Page 335 SYSTem :SYSTem:KLOCk ON | OFF The command (Keyboard LOCk) disables the keyboard of the SME including the [LOCAL] key or enables it again (OFF). Caution: If :SYSTem:SECurity is ON, the keyboard cannot be enabled, i.e., :SYSTem:KLOCk OFF is not accepted. If the disabling of the command is released by switching over to :SYSTem:SECurity OFF, data will be lost.
  • Page 336 SYSTem :SYSTem:MSEQuence:FREE? The command queries the space available for memory sequences. It returns two values. The first value indicates the space still vacant, the second the space already occupied. Example: Response: 20, 236 :SYST:MSEQ:FREE? :SYSTem:MSEQuence:MODE AUTO | STEP The command indicates in which way the memory sequence is to be processed (by analogy with :SOURce:SWEep:MODE) .
  • Page 337 SYSTem :SYSTem:PROTect1|2|3 [:STATe] ON | OFF, password The command switches a protection level on or off. The passwords are 6-digit numbers. They are fixedly stored in the firmware. The password for the first level is 123456. disables the functions belonging to this protection level. A password need not be indicated.

  • Page 338: Test-System

    TEST 3.6.15 TEST-System This system contains the commands to execute the selftest routines (RAM?, ROM? and BATTery?) as well as to directly manipulate the hardware modules (:TEST:DIRect). The selftests return a "0" if the test has been executed successfully, otherwise a value unequal to "0". All commands of this system do not have an *RST value.
  • Page 339 TEST :TEST:DIRect:DCOD Subaddress, hex data string The command acts on module DCOD. (cf. :TEST:DIR:SUM) :TEST:DIRect:DSYN0MUX Subaddress, hex data string The command acts on module DSYN. (cf. :TEST:DIR:SUM) :TEST:DIRect:DSYN1MUX Subaddress, hex data string The command acts on module DSYN. (cf. :TEST:DIR:SUM) :TEST:DIRect:FMOD Subaddress, hex data string The command acts on module FMOD.

  • Page 340: Trigger-System

    TRIGger 3.6.16 TRIGger-System The TRIGger system contains the commands to select the trigger source and to configure the external trigger socket. The suffix is only important for the SWEEP subsystem and conforms to the numbering of the SOURce system: TRIGger1 = RF generator TRIGger2 = LFGEN2 The trigger system of the SME is a simplified implementation of the SCPI trigger system.
  • Page 341 TRIGger :TRIGger1|2[:SWEep]:SOURce AUTO | SINGle | EXTernal The command specifies the trigger source. The naming of the parameters directly corresponds to the different settings with manual control. SCPI uses other designations for the parameters the instrument accepts as well. These designations are to be preferred if compatibility is important. The following table provides an overview.
  • Page 342 TRIGger Effect of TRIGger:DM:SOURce and SOURce:ERMes|FLEX|REFL25|POCSag:TACTion on the sequence of complex digital modulations. :SOURce:ERM|FLEX|REFl25|POCS:TACTion TRIGger:DM:SOURce MESSage STARt ONCE AUTO MODE ALWAYS frames continuously repeated sequence; setting under ERMes|FLEX|REFLex25|POCSag:TACTion is irrelevant SINGle MODE SINGLE A trigger event (key; IEC/IEEE- – – bus- command) switches once from IDLE frame output to ALPH-, NUM and TONE frame...
  • Page 343 TRIGger :TRIGger1|2:LIST:SOURce AUTO | SINGle | EXTernal The command specifies the trigger source. The naming of the parameters corresponds to the one with sweep mode. SCPI uses other designations for the parameters the instrument accepts as well. These designations are to be preferred if compatibility is important. The following table provides an overview: SME designation SCPI designation...
  • Page 344 TRIGger :TRIGger:PULSe:SOURce EXTernal | AUTO The command specifies the trigger source. EXTernal Triggering is effected from outside via the PULSE socket. AUTOTrigger is free-running (see above) *RST value is AUTO Example: :TRIG:PULS:SOUR AUTO :TRIGger:PULSe:SLOPe POSitive | NEGative The command indicates whether the action triggered is triggered at the positive or the negative edge of the trigger signal.

  • Page 345: Unit-System

    UNIT 3.6.17 UNIT-System This system contains the commands specifying which units are valid if no unit is indicated in a command. These settings are valid for the entire instrument. Command Parameter Default Remark Unit :UNIT DEGRee| DEGree | RADian :ANGLe DBM | DBW | DBMW | DBUW | DBV | DBMV | DBUV | :POWer :UNIT:ANGLe DEGRee | DEGree | RADian...

  • Page 346: Instrument Model And Command Processing

    Instrument Model and Command Processing Instrument Model and Command Processing The instrument model shown in Fig. 3-2 has been made viewed from the standpoint of the servicing of IEC-bus commands. The individual components work independently of each other and simultaneously. They communicate by means of so-called "messages".

  • Page 347: Command Recognition

    Instrument Model and Command Processing 3.7.2 Command Recognition The command recognition analyses the data received from the input unit. It proceeds in the order in which it receives the data. Only a DCL is serviced with priority, a GET (Group Execute Trigger), e.g., is only executed after the commands received before as well.

  • Page 348: Output Unit

    Instrument Model and Command Processing 3.7.5 Output Unit The output unit collects the information requested by the controller, which it receives from the data set management. It processes it according to the SCPI rules and makes it available in the output buffer. The output buffer has a size of 256 characters.

  • Page 349: Status Reporting System

    Fast-Restore-Modus Status Reporting System The status reporting system (cf. Fig. 3-4) stores all information on the present operating state of the instrument, e.g. that the instrument presently carries out an AUTORANGE and on errors which have occurred. This information is stored in the status registers and in the error queue. The status registers and the error queue can be queried via IEC bus.
  • Page 350 Status-Reporting-System CONDition part The CONDition part is directly written into by the hardware or the sum bit of the next lower register. Its contents reflects the current instrument status. This register part can only be read, but not written into or cleared. Its contents is not affected by reading.

  • Page 351: Overview Of The Status Registers

    Fast-Restore-Modus 3.8.2 Overview of the Status Registers -&- not used vacant -&- vacant -&- -&- vacant vacant -&- Recording -&- -&- MSEQuencing vacant -&- vacant -&- -&- vacant W aiting for Trigger -&- MEASuring -&- -&- SW Eeping vacant -&- SETTling -&- -&-...

  • Page 352: Description Of The Status Registers

    Status-Reporting-System 3.8.3 Description of the Status Registers 3.8.3.1 Status Byte (STB) and Service Request Enable Register (SRE) The STB is already defined in IEEE 488.2. It provides a rough overview of the instrument status by collecting the pieces of information of the lower registers. It can thus be compared with the CONDition part of an SCPI register and assumes the highest level within the SCPI hierarchy.

  • Page 353: Ist Flag And Parallel Poll Enable Register (Ppe)

    Fast-Restore-Modus 3.8.3.2 IST Flag and Parallel Poll Enable Register (PPE) By analogy with the SRQ, the IST flag combines the entire status information in a single bit. It can be queried by means of a parallel poll (cf. Section 3.8.4.3) or using command "*IST?". The parallel poll enable register (PPE) determines which bits of the STB contribute to the IST flag.

  • Page 354: Status:operation Register

    Status-Reporting-System 3.8.3.4 STATus:OPERation Register In the CONDition part, this register contains information on which actions the instrument is being executing or, in the EVENt part, information on which actions the instrument has executed since the last reading. read using commands "STATus:OPERation:CONDition?"...

  • Page 355: Status:questionable Register

    Fast-Restore-Modus 3.8.3.5 STATus:QUEStionable Register This register contains information on questionable instrument states. They can occur, e.g. if the instrument is operated out of its specifications. It can be queried using commands "STATus :QUEStionable:CONDition?" or "STATus:QUEStionable[:EVENt]?". Table 3-7 Meaning of the bits used in the STATus:QUEStionable register Bit-No.

  • Page 356: Application Of The Status Reporting Systems

    Status-Reporting-System 3.8.4 Application of the Status Reporting Systems In order to be able to effectively use the status reporting system, the information contained there must be transmitted to the controller and further processed there. There are several methods which are represented in the following.

  • Page 357: Parallel Poll

    Fast-Restore-Modus 3.8.4.3 Parallel Poll In a parallel poll, up to eight instruments are simultaneously requested by the controller by means of a single command to transmit 1 bit of information each on the data lines, i.e., to set the data line allocated to each instrument to logically "0"...

  • Page 358: Resetting Values Of The Status Reporting Systems

    Status-Reporting-System 3.8.5 Resetting Values of the Status Reporting Systems Table 3-8 comprises the different commands and events causing the status reporting system to be reset. None of the commands, except for *RST and SYSTem:PRESet influences the functional instrument settings. In particular, DCL does not change the instrument settings. Table 3-8 Resetting instrument functions Event...

  • Page 359: Fast Restore Mode

    Fast-Restore-Modus Fast Restore Mode The Fast Restore mode is available with SME03A and units that are equipped with option Fast CPU for SMIQ SM-B50. Device settings can be saved and recalled very quickly via the IEC/IEEE bus using the commands described below. 1000 memory locations are available. In contrast to the SAVE/RECALL function, not the unit parameters but only the setting data of the modules are stored in the Fast Restore mode.
  • Page 360 Status-Reporting-System Call-up and termination of operating mode After a RESTORE, the database does no longer reflect the device setting which means - the displayed values are no longer relevant, - the desired result is not obtained by a query of setup values. - normal setting commands may not be executed properly (see below ’Alternative ...) It is therefore recommended either to use the *RST command or...

  • Page 361: Maintenance And Troubleshooting

    Maintenance and Troubleshooting Maintenance and Troubleshooting The instrument does not need a periodic maintenance. What is necessary is essentially the cleaning of the instrument. However, it is recommended to check the rated data from time to time. Maintenance 4.1.1 Cleaning the Outside The outside of the instrument is suitably cleaned using a soft, line-free dustcloth.

  • Page 362: Exchange Of Ram Battery

    Maintenance and Troubleshooting 4.1.3.1 Exchange of RAM Battery À Remove all cable connections. Opening the instrument À Screw off front panel (4 Phillips screws at the corners) and tilt towards the front. The shielding cover (cf. Fig. 4-1) of the controller and the front panel modules is now freely accessible.
  • Page 363 Maintenance and Troubleshooting 1 (5x) 1 Fastening screws X312 3 Cable connection IEC bus 2 Cable connection motherboard 4 Cable connection RS-232 Fig. 4-1 Shielding cover of controller and front panel modulel 5 (2x) 1 Plug-in connection X312 3 Lithium-battery 5 Fastening screws 2 Jumper X300 4 Cable connection to motherboard...

  • Page 364: Exchange Of Xmem Battery

    Maintenance and Troubleshooting 4.1.3.2 Exchange of XMEM Battery À Switch off unit and disconnect power plug. Removing Option SME-B12 À Remove all cable connections. À Undo the four screws of the rear-panel feet and remove feet. À Push top panelling towards the rear and remove. À...

  • Page 365: Functional Test

    Functional Test 1 Jumper X2 2 Lithium battery Fig. 4-3 Position of the XMEM battery on option SME-B12 (side where the components are fitted) Functional Test The SME carries out a selftest on switching on the instrument and permanently during operation. On switching on, the RAM and ROM contents are checked and the batteries of the non-volatile RAMs and of the memory extension are tested.
  • Page 366 Functional Test Tests the EPROM. The test result is displayed in a window. TEST EPROM Tests the RAM. The test result is displayed in a window. TEST RAM RAM BATTERY Ð Tests the RAM battery. The test result is displayed in a window. TEST XMEM Ð...

  • Page 367: Performance Test

    5.2.2 (included item 2) 1Hz to 3 GHz (SME03), 5.2.4 1Hz to 6 GHz (SME06), Resolution 0.1 Hz RF spectrum analyzer 100 Hz to 5 GHz (SME02/03), 0848.0020.52 5.2.3 100 Hz to 18 GHz (SME06) 1020.7020.52 5.2.5 synthesizer tuning, 5.2.6 dynamic range >80 dB...
  • Page 368 Specification required Suitable R&S R&S order no. Application instrument Low-noise preamplifier 5 kHz to 1.5 GHz (SME02) 5.2.11 5 kHz to 3 GHz (SME03), 5 kHz to 6 GHz (SME06), amplification > 20 dB, noise factor < 10 dB VSWR bridge 1 MHz to 1.5 GHz (SME02)

  • Page 369: Test Systems To Measure Modulation Characteristics

    Test Instruments and Utilities Item Type of instrument Specification required Suitable R&S R&S order no. Application instrument Demodulator for digital Vector error measurement with FSEA20 with 1065.6000.20 5.2.34.2 modulations QPSK modulation option FSE-B7 1066.4317.02 5.2.35.2 Phase error measurement with GMSK modulation VSWR directional coupler 3 GHz to 6 GHz (SME06) 5.2.12...

  • Page 370: Test System For Broadband Fm

    Test Instruments and Utilities 5.1.1.3 Test System for Broadband FM Test equipment - Second signal generator (Section 5.1, item 5) - Mixer (Section 5.1, item 16) - Sine-wave generator (Section 5.1, item 18) - AC voltmeter (Section 5.1, item 19) - Broadband FM demodulator (Section 5.1, item 20) - RF attenuator pad (Section 5.1, item 21) - Lowpass filter (Section 5.1, item 23)

  • Page 371: Test System For Gfsk

    Test Instruments and Utilities 5.1.1.5 Test System for GFSK Test equipment - Storage oscilloscope (Section 5.1, item 3) - Second signal generator (Section 5.1, item 5) - Mixer (Section 5.1, item 16) - Broadband FM demodulator (Section 5.1, item 20) - RF attenuator pad (Section 5.1, item 21) - Lowpass filter (Section 5.1, item 23) Test setup...

  • Page 372: Test Procedure

    Test Procedure Test Procedure The rated specifications of the generator are tested after the instrument has warmed up for at least 30 minutes and a total calibration has been carried out (c.f. Section 2.11.8, Calibration). This is the only way to make sure that the guaranteed data are observed. The values in the following sections are not guaranteed;...
  • Page 373 Test Procedure Divider :2 375.000 000 1 MHz 750.000 000 0 MHz Divider :4 187.500 000 1 MHz 375.000 000 0 MHz Divider :8 93.750 000 1 MHz 187.500 000 0 MHz Mixer range 0.001 000 0 MHz 93.750 000 0 MHz Mixer range with a large deviation 0.001 000 0 MHz 130.700 000 0 MHz...

  • Page 374: Settling Time

    Test Procedure 5.2.3 Settling Time Test equipment - Spectrum analyzer with video output (Section 5.1, item 2) - Storage oscilloscope (Section 5.1, item 3) - Controller (Section 5.1, item 4) Test principle The spectrum analyzer is operated as an edge demodulator with a 0-Hz span.
  • Page 375 Test Procedure À Setting at the storage oscilloscope Measurement - Time base 2 ms/div - Sensitivity corresponding to the video output of the analyzer - Triggering externally by the positive edge at 1.5 V. À Send the starting frequency first and then the stop frequency from the controller.

  • Page 376: Reference Frequency

    Test equipment Spectrum analyzer (Section 5.1, item 2) Test setup Connect the spectrum analyzer to the RF output of the SME. À Settings at the SME02/03E/03/06 Measurement Test frequencies 5 kHz to 1500/2200/3000/6000 MHz, unmodulated Level 10 dBm or 13 dBm.

  • Page 377: Suppression Of Nonharmonics

    Test Procedure 5.2.6 Suppression of Nonharmonics Test equipment and setup See Section 5.2.5, Harmonics Suppression. The test level should be 8.1 dBm unmodulated. Measurement Nonharmonics level with Frequency settings ≤ 1.5 GHz ..........<-80 dBc Frequency settings > 1.5 GHz (SME03/03E) ......<-74 dBc Frequency settings >...

  • Page 378: Ssb Phase Noise

    Test Procedure Mixer nonharmonics Setting at the SME Search at frequency of the output part 93.75 MHz 131.25 MHz 93.75 MHz 37.5 MHz 93.75 MHz 56.25 MHz 70.0 MHz 40.0 MHz Nonharmonics of the Setting at the SME Search in the ratio summing loop 1412.9 MHz 300.0 kHz...
  • Page 379 Test Procedure À Set the levels of the two signal generators according to the Measurement specifications of the mixer used (unmodulated) À For calibration, set the preamplifier to 0 dB and detune a signal generator by 20 kHz. Measure and note down the reference value at 20 kHz at the analyzer.

  • Page 380: Broadband Noise

    Test Procedure 5.2.8 Broadband Noise Test equipment Broadband noise is measured using the test setup of 5.2.7 (SSB Phase Noise). Test principle Calibration is effected in the same way as in Section 5.2.7, SSB Phase Noise. For measurement, the signal generators are detuned until the difference frequency falls into the stop band of the lowpass filter (>...

  • Page 381: Residual Am

    Test Procedure 5.2.10 Residual AM Test equipment Test system 5.1.1.1 Measurement See Section 5.2.9, but demodulation AM Residual AM with a measuring bandwidth of 30 Hz to 23 kHz ..............≤ 0.02 % 5.2.11 Output Level Test equipment -Power meter (Section 5.1, item 8) Precision attenuator (Section 5.1, item 9) Spectrum analyzer (Section 5.1, item 2) Low-noise preamplifier (Section 5.1, item 10)
  • Page 382 Test Procedure À Measurement Settings at the SME Test frequency Level 10 dBm, unmodulated À Setting at the analyzer Test frequency À Setting at the attenuator Attenuation 120 dB. À Read the level at the analyzer and note down as a reference value. It should be approx.

  • Page 383: Output Reflection Coefficient

    Test Procedure 5.2.12 Output Reflection Coefficient Test equipment -VSWR bridge (Section 5.1, item 11) VSWR directional coupler (Section 5.1, item 25) for SME06 Second signal generator (Section 5.1, item 5) Spectrum analyzer (Section 5.1, item 2) . Test setup Note: For test frequencies >3 GHz use a VSWR directional coupler instead of a VSWR bridge.

  • Page 384: Interrupt-Free Level Setting (Atten Fixed)

    Test Procedure À Screw the bridge or the directional coupler onto the SME again. À A more or less wavy line representing the VSWR of the SME is to be seen now at the spectrum analyzer. The VSWR is to be calculated from the maximal and the minimal voltage according to VSWR = v VSWR with test levels ≤...

  • Page 385: Overvoltage Protection (Sme02 And Sme03 Only)

    Test Procedure 5.2.14 Overvoltage Protection (SME02 and SME03 only) Caution: SME06 is not protected against overvoltage. To prevent damages to the unit – never apply a DC. voltage to the RF output connector – never apply more than the maximum permissible RF power (30 dBm) to the RF output connector.

  • Page 386: Modulation Depth Of Am

    Test Procedure 5.2.16 Modulation Depth of AM Test equipment Test system 5.1.1.1 Test system 5.1.1.6 (SME06) À Settings at the SME Measurement Level 0 dBm Select LFGEN1 in the MODULATION/AM/AM SOURCE INT menu, Modulation depth 0.1% to 80% (recommended values 30% and 80%) Modulation frequency 1 kHz À...

  • Page 387: Am Distortion Factor

    Test Procedure 5.2.18 AM Distortion Factor Test equipment Test system 5.1.1.1. Test system 5.1.1.6 (SME06) Measurement À Settings at the SME Level 0 dBm Select LFGEN1 in the MODULATION/AM/AM SOURCE INT menu, Modulation depth 30% Modulation frequency 1 kHz. À Vary the carrier frequency from 1 MHz to 1500 MHz (2200/ 3000/6000 MHz with SME03E/03/06).

  • Page 388: Level Monitoring At Input Ext2 (Option Sm-B5)

    Test Procedure 5.2.20 Level Monitoring at Input EXT2 (Option SM-B5) Test equipment Test system 5.1.1.2 Test setup Connect the generator output of the audio analyzer to external modulation input EXT2. À Setting at the SME Testing Select EXT2 in the MODULATION/FM/FM1 SOURCE menu. Gen.

  • Page 389: Fm Frequency Response

    Test Procedure 5.2.22 FM Frequency Response 5.2.22.1 FM Frequency Response up to 100 kHz Test equipment Test system 5.1.1.2 À Settings at the SME Measurement Test frequency 100 MHz Level 0 dBm Select EXT1 in the MODULATION/FM/FM1 SOURCE menu, Deviation 50 kHz . À...

  • Page 390: Fm Distortion Factor

    Test Procedure 5.2.23 FM Distortion Factor Test equipment Test system 5.1.1.1 À Measurement Settings at the SME Carrier frequency 250 MHz Level 0 dBm Select INT in the MODULATION/FM/FM1 SOURCE menu, Deviation 62.5 kHz Modulation frequency 1 kHz. À Read off distortion factor at the modulation analyzer. Distortion factor ..............

  • Page 391: Carrier Frequency Deviation With Fm

    Test Procedure 5.2.26 Carrier frequency Deviation with FM Test equipment Test system 5.1.1.1 À Measurement Settings at the SME 400 MHz Level 0 dBm Select LFGEN1 in the MODULATION/FM/FM1 SOURCE menu, Deviation 0 kHz. À Setting at the modulation analyzer Counter function À...

  • Page 392: Phim Deviation Setting

    Test Procedure 5.2.28 PhiM Deviation Setting Test equipment Test system 5.1.1.1 Measurement À Settings at the SME Carrier frequency 1000 MHz Level 0 dBm Select INT in the MODULATION/PM/PM1 SOURCE menu, Deviation 0.03 to 10 rad Modulation frequency 1 kHz. À...

  • Page 393: Phim Distortion Factor

    Test Procedure 5.2.30 PhiM Distortion Factor Test equipment Test system 5.1.1.1 Measurement À Settings at the SME Carrier frequency 1 GHz Level 0 dBm Select INT in the MODULATION/PM/PM1 SOURCE menu, Deviation 5 rad Modulation frequency 1 kHz. À Read off the distortion factor at the modulation analyzer. Distortion factor ..............

  • Page 394: Pulse Modulation (Option Sm-B3/B8/B9)

    Test Procedure 5.2.32 Pulse Modulation (Option SM-B3/B8/B9) 5.2.32.1 ON/OFF - Ratio Test equipment Spectrum analyzer (Section 5.1, item 2) Pulse generator (Section 5.1, item 17) Test setup To determine the ON/OFF ratio, connect a spectrum analyzer to the RF output socket of the SME and a pulse generator to socket PULSE at the rear panel of the SME.

  • Page 395: Gfsk Modulation (Option Sme-B11)

    Test Procedure 5.2.33 GFSK Modulation (Option SME-B11) 5.2.33.1 Spectrum Operating Mode internal Test equipment Spectrum analyzer (Section 5.1, item 2) D.c. voltage source (Section 5.1, item 12) Pulse generator (Section 5.1, item 17) Test setup Connect spectrum analyzer to the RF output of the SME. À...
  • Page 396 Test Procedure The signal level with respect to the level at a center frequency Offset frequency Level as a function of the offset frequency must be as follows: 835 kHz -40 dB ±3 dB 990 kHz -30 dB ±2 dB 1890 kHz -58 dB ±4 dB Operating Mode External...

  • Page 397: Deviation Error

    Test Procedure 5.2.33.2 Deviation Error Test equipment Test system 5.1.1.5 À Adjust the d.c. voltage at the FM demodulator output to 0 V±10 mV Measurement by means of a fine adjustment of the carrier or LO frequency with GFSK modulation switched off. À...

  • Page 398: Qpsk Modulation

    Test Procedure 5.2.34 QPSK Modulation 5.2.34.1 Spectrum Caution: The LEVEL-PRESET calibration (see service manual, stock no. 1039.1856.24) must be carried out before this measurement. The delay adjustment for QPSK (see service manual, stock no. 1039.1856.24) should be checked and renewed if necessary before the measurement. Test equipment Spectrum analyzer (Section 5.1, item 2) Test setup...

  • Page 399: Vector Error (Nadc Standard Is-54)

    Test Procedure [dBm] 0 -100 835,9 836,1 [MHz] Fig. 5-2 Spectrum with QPSK 5.2.34.2 Vector Error (NADC Standard IS-54) Test equipment FSEA with option FSE-B7 (Section 5.1, item 23) Test setup Connect FSEA to the RF output socket of the SME À...

  • Page 400: Gmsk Modulation

    Test Procedure 5.2.35 GMSK Modulation 5.2.35.1 Spectrum Test equipment Spectrum analyzer (Section 5.1, item 2) Test setup Connect the spectrum analyzer to the RF output socket of the SME. À Measurement Settings at the SME Carrier frequency 900 MHz, Level 0 dBm in menu DIGITAL MOD/GMSK SOURCE PRBS PRBS 23 bit...
  • Page 401 Test Procedure The signal level with respect to the level at a center Offset frequency Level frequency as a function of the offset frequency must adhere to the following tolerances 50 kHz -2 ±1 dB 100 kHz -8.6 dB ±2 dB 150 kHz -20 dB ±3 dB 220 kHz...
  • Page 402 Test Procedure Bit no.: 081 082 083 084 085 086 087 088 089 090 Contents: Bit no.: 091 092 093 094 095 096 097 098 099 100 Contents: Bit no.: 101 102 103 104 105 106 107 108 109 110 Contents: Bit no.: 111 112 113 114 115 116 117 118 119 120...

  • Page 403: Ffsk Modulation

    Test Procedure 5.2.36 FFSK Modulation Test equipment Test system 5.1.1.1 À Measurement Settings at the SME Carrier frequency 466 MHz, Level 0 dBm, Select SOURCE DATA, MODE AUTO, SELECT STANDARD POCSAG in the DIGITAL MOD/FFSK menu. À Enter a "HIGH sequence" ("1") using the list editor. À...

  • Page 404: Frequency Response

    Test Procedure 5.2.37.2 Frequency Response Test equipment AC voltmeter (Abschnitt 5.1, Pos. 19) Test setup Connect AC voltmeter to the LF socket of the SME. À Settings at the SME Measurement In Menu LF OUTPUT SOURCE LFGEN2, Vary LFGEN2 FREQUENCY from 10 Hz to 500 kHz. Frequency response (difference between the highest and lowest level) ............up to 100 kHz <...
  • Page 405 Test Procedure À Settings at the Oscilloscope Time base 20 ns/div, both channels 2 V/div, Triggering from the SYNC signal. SYNC output..Pulse sequence with a pulse width of 40 ns ±10 ns VIDEO output ..Pulse sequence with a pulse width of 20 ns ±4 ns, the first edge appears after the first edge of the SYNC signal by the pulse delay of 60 ns (-13ns,+ 23 ns).

  • Page 406: Multi-Function Generator (Option Sm-B6)

    Test Procedure 5.2.39 Multi-Function Generator (Option SM-B6) 5.2.39.1 Frequency Error, Distortion Factor and Level Test equipment Audio analyzer (Section 5.1, item 14) Test setup Connect the audio analyzer to the LF output of the SME. À Measurement SME settings In menu LF OUTPUT VOLTAGE 1 V SOURCE LFGEN2 LFGEN2 SHAPE SIN...

  • Page 407: Distortion Factor And Crosstalk Attenuation Stereo

    Test Procedure 5.2.39.3 Distortion Factor and Crosstalk Attenuation Stereo Test equipment Modulation analyzer (Section 5.1, item 15) Test setup Connect modulation analyzer to the LF output of the SME À Measurement Settings at the SME In menu MODULATION STEREO MODE R, AUDIO FREQ 1kHz, In menu LF OUTPUT STEREO OUTPUT MPX.

  • Page 408: Memory Extension (Option Sme-B12)

    Test Procedure 5.2.40 Memory Extension (Option SME-B12) Note: To ensure a proper functioning of the memory extension (XMEM) the modification status of the DM coder has to be at least VAR.2/REV.4. Menu UTILITIES-DIAG-CONFIG offers access to indication of module modification status. The read/write function via the IEC/IEEE bus and the interplay between the XMEM and the DM coder during GFSK modulation (high bit rate) are first checked followed by checks of the dibit synchronization for QPSK and external triggering.

  • Page 409: Dibit Synchronization

    Test Procedure 5.2.40.2 Dibit Synchronization For modulations QPSK and 4FSK a symbol is coded with two successive bits (dibit), i.e. the X bit and the Y bit. The X bit is at the beginning of the sequence at the START ADDRESS as per definition. To ensure this allocation the DM coder and XMEM have to be synchronized when the modulation is switched on.

  • Page 410: Performance Test

    Performance Test Performance Test ROHDE&SCHWARZ SIGNAL GENERATOR SME 1038.6002..Serial number: Person testing: Date: Signature: Table 5-3 Test report Item Characteristic Measurem. Min. Actual Max. Unit acc. to Section Display and keyboard 5.2.1 checked ... Frequency setting 5.2.2 checked ...
  • Page 411 ....-4.8 -15 dB -10.4 ....-9.6 -20 dB -15.6 ....-14.4 -20.8 ....-19.2 Overvoltage protection 5.2.14 (SME02/03 only) D.c. voltage ....RF supply ....Level monitoring EXT1 5.2.15 lower limit 0.97 ....0.99 upper limit 1.01 ....1.03 AM modulation depth 5.2.16...
  • Page 412 Performance Test Item Characteristic Measurem. Min. Actual Max. Unit acc. to Section FM deviation setting 5.2.21 with 300 Hz ....with 1 kHz 0.95 ..... with 3 kHz 2.89 ....with 10 kHz 9.68 ....with 30 kHz 29.08 ..... with100 kHz 96.98 ....
  • Page 413 Performance Test Item Characteristic Measurem. Min. Actual Max. Unit acc. to Section PhiM distortion factor 5.2.30 ....Int. modulation generator 5.2.31 Frequency 400 Hz ....Frequency 1 kHz ....1030 Frequency 3 kHz 2910 ....3090 Frequency 15 kHz 14.55 ....
  • Page 414 Performance Test Item Characteristic Measurem. Min. Actual Max. Unit acc. to Section FFSK modulation 5.2.36 "HIGH" sequence Peak deviation 3880 .... 4120 Modulation frequency 1164 .... 1236 Distortion factor .... "LOW" sequence Peak deviation 3880 .... 4120 Modulation frequency 1746 ....
  • Page 415 Performance Test Item Characteristic Measurem. Min. Actual Max. Unit acc. to Section Multi-function generator 5.2.39 Frequency error ....1E04 Distortion factor ....Level ....3 mV ....10 mV ....11.1 30 mV 28.7 ....31.3 100 mV 98.0 ....102.0 300 mV ....

  • Page 417: Annex

    IEC/IEEE Bus Interface Annex A IEC/IEEE Bus Interface The instrument is equipped with an IEC/IEEE-bus connection as a standard. The mating connector according to IEEE 488 is at the rear of the instrument. A controller for remote control can be connected via the interface.
  • Page 418 IEC/IEEE Bus Interface 2. Control bus with 5 lines. IFC (Interface Clear), active low resets the interfaces of the instruments connected to the default setting. ATN (Attention), active low signals the transmission of interface messages inactive high signals the transmission of device-dependent messages. SRQ (Service Request), active low enables a device connected to send a service request to the controller.

  • Page 419: Interface Messages

    IEC/IEEE Bus Interface Interface Messages Interface messages are transmitted to the instrument on the data lines, with the attention line being active (LOW). They serve to communicate between instrument and controller. Universal Commands The universal commands are encoded in the range 10 through 1F hex. They are effective for all instruments connected to the bus without addressing them before.

  • Page 420: Rs-232-C Interface

    RS-232-C Interface RS-232-C Interface The instrument is fitted with an RS-232-C interface as standard. The 9-pin connector is at the rear panel. A controller can be connected via this interface for remote control. Interface characteristics ì Serial data transmission in asynchronous mode ì...

  • Page 421: Transmission Parameters

    RS-232-C Interface Transmission parameters To ensure an error-free and correct data transmission, the parameters of the instrument and the controller should have the same settings. The parameters are set in menu UTILITIES-SYSTEM-RS232. Transmission rate The following baud rates can be set in the instrument: (baud rate) 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200.

  • Page 422: Handshake

    RS-232-C Interface Handshake Software handshake The software handshake with the XON/XOFF protocol controls data transmission. If the receiver wishes to inhibit data entry, it sends XOFF to the transmitter. The transmitter then interrupts the data output until it receives a XON. The same function is provided at the transmitter side (controller). Note: Software handshake is not suitable for transmission of binary data.

  • Page 423: Annex

    List of Error Messages Annex B List of Error Messages The following list contains all error messages for errors occurring in the instrument. The meaning of negative error codes is defined in SCPI, positive error codes mark errors specific of the instrument. The table contains the error code in the left-hand column.
  • Page 424 List of Error Messages Continuation: Command Error Error code Error text in the case of queue poll Error explanation Missing parameter -109 The command contains too few parameters. Example: Command SOURce:FM:INTernal:FREQuency requires a frequency indication. Program mnemonic too long -112 The header contains more than 12 signs.
  • Page 425 List of Error Messages Execution Error - Error in executing the command; sets bit 4 in the ESR register Error code Error text in the case of queue poll Error explanation Block data not allowed -168 The command contains valid block data at an impermissible position. Expression data not allowed -178 The command contains a mathematical expression at an impermissible position.
  • Page 426 List of Error Messages Device Specific Error - sets bit 3 in the ESR register. Error code Error text in the case of queue poll Error explanation System error -310 This error message suggests an error within the instrument. Please inform the R&S Service. Memory error -311 Error in the instrument memory.

  • Page 427: Sme-Specific Error Messages

    List of Error Messages SME-Specific Error Messages Device-dependent Error - device-specific error; sets bit 3 in the ESR register. Error code Error text in the case of queue poll Error explanation Frequency underrange The frequency is below the limit value guaranteed. Frequency overrange The frequency is beyond the limit value guaranteed.
  • Page 428 List of Error Messages Continuation: Device-dependent Error Error code Error text in the case of queue poll Error explanation Input voltage out of range; EXT2 too high The input voltage at the EXT2 socket is too high. Input voltage out of range; EXT2 too low The input voltage at the EXT2 socket is too low.
  • Page 429 List of Error Messages Continuation: Device-dependent Error Error code Error text in the case of queue poll Error explanation No list defined There is no list defined.. List not learned; execute LEARn command The instrument has been switched to LIST mode and a list has been selected. However, command LEARn has not been executed.

  • Page 431: Annex

    List of Commands Annex C List of Commands (with SCPI Conformity Information The SME supports SCPI version 1994.0. For remote control, commands which were specified or accepted in this SCPI version have been used to a large extent. Commands which are not part of the SCPI specification are marked "not-SCPI"...
  • Page 432 List of Commands Parameter Command SCPI Page info :DIAGnostic:INFO:MODules? 3.22 :DIAGnostic:INFO:OTIMe? 3.22 :DIAGnostic:INFO:SDATe? 3.22 :DIAGnostic[:MEASure]:POINt? 3.22 :DIAGnostic:XMEM:CHECksum:ATTenuate? not-SCPI 3.23 :DIAGnostic:XMEM:CHECksum:BURSt? not-SCPI 3.23 :DIAGnostic:XMEM:CHECksum:CALCulate not-SCPI 3.22 :DIAGnostic:XMEM:CHECksum:DATA? not-SCPI 3.23 :DIAGnostic:XMEM:CHECksum[:TOTal]? not-SCPI 3.23 :DISPlay:ANNotation[:ALL] ON | OFF 3.24 :DISPlay:ANNotation:AMPLitude ON | OFF 3.24 :DISPlay:ANNotation:FREQuency ON | OFF...
  • Page 433 List of Commands Parameter Command SCPI Page info [:SOURce]:AM:INTernal:FREQuency 400 Hz | 1 kHz | 3 kHz | 15 kHz or 3.31 0.1 Hz to 500 kHz or 0.1 Hz to1 MHz [:SOURce]:AM:POLarity NORMal | INVerted not-SCPI 3.31 [:SOURce]:AM:SOURce EXT | INT1|2 | EXT, INT1|2 3.31 [:SOURce]:AM:STATe ON | OFF...
  • Page 434 List of Commands Parameter Command SCPI Page info [:SOURce]:DM[:BASic]:DATA:BURSt:POINts? not-SCPI 3.38 [:SOURce]:DM[:BASic]:DATA:ALEVel 0 to 60 dB not-SCPI 3.39 [:SOURce]:DM[:BASic]:DATA:ALEVel:MODE NORM | MAX not-SCPI 3.39 [:SOURce]:DM[:BASic]:DATA:XMEM:STARt 1 to 8388478 (XMEM:MODE = DATA) | not-SCPI 3.39 1 to 1048558 (XMEM:MODE = ALL) [:SOURce]:DM[:BASic]:DATA:XMEM:LENGth 3 to 8388480 (XMEM:MODE = DATA) | not-SCPI...
  • Page 435 List of Commands Parameter Command SCPI Page info [:SOURce]:DM:QPSK:BRATe 1 to 24.3 kb/s and 27.0 to 48.6 kb/s not-SCPI 3.45 [:SOURce]:DM:QPSK:CODing NADC | PDC | TFTS | TETRa | APCO | not-SCPI 3.45 MSAT | INMarsat [:SOURce]:DM:QPSK:FILTer COSine|SCOSine , 0.35|0.4|0.5|0.6 | not-SCPI 3.46 COSine, 0.2...
  • Page 436 List of Commands Parameter Command SCPI Page info [:SOURce]:ERMes:MESSage:CATegory ALPHanumeric | NUMeric | TONE not-SCPI 3.51 [:SOURce]:ERMes:MESSage:IA | IADDress 0 to 262143 not-SCPI 3.51 [:SOURce]:ERMes:MESSage:NUMeric ’ String’ not-SCPI 3.51 [:SOURce]:ERMes:MESSage:TONE 0 to 15 not-SCPI 3.52 [:SOURce]:ERMes:NINFormation:OPERator 0 to 7 not-SCPI 3.52 [:SOURce]:ERMes:NINFormation:PA | PARea 0 to 63...
  • Page 437 List of Commands Parameter Command SCPI Page info [:SOURce]:FLEX:MESSage:BINary:TYPE LEFT | RIGHt | TRANsparent | THEader not-SCPI 3.58 [:SOURce]:FLEX:MESSage:BINary[:SELect] ’USER1 3.58 [:SOURce]:FLEX:MESSage:CAPCode ’Capcode string’ not-SCPI 3.57 [:SOURce]:FLEX:MESSage:CATegory ALPHanumeric | SECure | BINary | not-SCPI 3.57 NUMeric | SNUMeric | TONE [:SOURce]:FLEX:MESSage:MDRop ON | OFF not-SCPI...
  • Page 438 List of Commands Parameter Command SCPI Page info [:SOURce]:FREQuency:CENTer 5 kHz to1.5 GHz 3.63 (SME03E/03/06: 5 kHz to 2.2/3/6 GHz) [:SOURce]:FREQuency:MANual 5 kHz to 1.5 GHz 3.64 (SME03E/03/06: 5 kHz to 2.2/3/6 GHz) [:SOURce]:FREQuency:MODE CW | FIXed | SWEep | LIST 3.64 [:SOURce]:FREQuency:OFFSet -50 to +50 GHz...
  • Page 439 List of Commands Parameter Command SCPI Page info [:SOURce]:ILS:LOCalizer:COMid:DEPTh 0 to 100 PCT not-SCPI 3.70 [:SOURce]:ILS:LOCalizer:COMid:FREQuency 0.1 to 20 000 Hz not-SCPI 3.70 [:SOURce]:ILS:LOCalizer:COMid[:STATe] ON | OFF not-SCPI 3.70 [:SOURce]:ILS:LOCalizer:DDM:CURRENT -387 to +387 uA not-SCPI 3.71 [:SOURce]:ILS:LOCalizer:DDM:DIRection LEFT | RIGHt not-SCPI 3.71 [:SOURce]:ILS:LOCalizer:DDM:LOGarithmic...
  • Page 440 List of Commands Parameter Command SCPI Page info [:SOURce]:[:FSWeep]:FREQuency 5 kHz to 1.5 GHz 3.76 (SME03E/03/06: 5 kHz to F/3/6 GHz) [:SOURce]:MARKer1|2|3[:FSWeep][:STATe] ON | OFF 3.77 [:SOURce]:MARKer1|2|3:PSWeep:AOFF not-SCPI 3.77 [:SOURce]:MARKer1|2|3:PSWeep:POWer -144 dBm to+16 dBm not-SCPI 3.77 [:SOURce]:MARKer1|2|3:PSWeep[:STATe] ON | OFF not-SCPI 3.77 [:SOURce]:MARKer1|2|3:POLarity...
  • Page 441 List of Commands Parameter Command SCPI Page info [:SOURce]:POCSag:MESSage:ALPHanumeric[:SELect] 3.84 [:SOURce]:POCSag:MESSage:CATegory NUMeric | TONE | ALPHanumeric not-SCPI 3.83 [:SOURce]:POCSag:MESSage:NUMeric ’String’ not-SCPI 3.84 [:SOURce]:POCSag:MESSage:SWORd POCSag | INForuf not-SCPI 3.84 [:SOURce]:POCSag:MESSage:TONE A | B | C | D not-SCPI 3.84 [:SOURce]:POCSag:MODulation FSK | FFSK not-SCPI 3.82 [:SOURce]:POCSag:POLarity...
  • Page 442 List of Commands Parameter Command SCPI Page info [:SOURce]:PULSe:DOUBle:DELay 60 ns to 1 s 3.90 [:SOURce]:PULSe:DOUBle[:STATe] ON | OFF 3.90 [:SOURce]:PULSe:PERiod 100 ns to 85 s 3.90 [:SOURce]:PULSe:WIDTh 20 ns to 1s 3.90 [:SOURce]:REFLex25:AADaptation ON | OFF not-SCPI 3.96 [:SOURce]:REFLex25:DEViation 2.0 to 10.0 kHz not-SCPI 3.92...
  • Page 443 List of Commands Parameter Command SCPI Page info [:SOURce]:REFLex25:STATe:AUTO ON | OFF not-SCPI 3.92 [:SOURce]:REFLex25:TACTion MESSage | STARt | ONCE not-SCPI 3.96 [:SOURce]:ROSCillator:EXTernal:FREQuency 1 to 16 MHz 3.97 [:SOURce]:ROSCillator[:INTernal]:ADJust[:STATe] ON | OFF not-SCPI 3.97 [:SOURce]:ROSCillator[:INTernal]:ADJust:VALue 0 to 4095 not-SCPI 3.97 [:SOURce]:ROSCillator:SOURce INTernal | EXTernal not-SCPI...
  • Page 444 List of Commands Parameter Command SCPI Page info [:SOURce]:VOR[:BANGle] 0 to 360 deg not-SCPI 3.105 [:SOURce]:VOR[:BANGle]:DIRection FROM | TO not-SCPI 3.105 [:SOURce]:VOR:COMid:DEPTh 0 to 100 PCT not-SCPI 3.106 [:SOURce]:VOR:COMid:FREQuency 0.1 to 20 000 Hz not-SCPI 3.106 [:SOURce]:VOR:COMid[:STATe] ON | OFF not-SCPI 3.106 [:SOURce]:VOR:MODE...
  • Page 445 List of Commands Parameter Command SCPI Page info :SOURce2:SWEep[:FREQuency]:POINts Number not-SCPI 3.112 :SOURce2:SWEep[:FREQuency]:SPACing LINear | LOGarithmic not-SCPI 3.112 :SOURce2:SWEep[:FREQuency]:STEP[:LINear] 0 to 500 kHz not-SCPI 3.112 :SOURce2:SWEep[:FREQuency]:STEP:LOGarithmic 0.01 to 50PCT not-SCPI 3.112 :STATus:OPERation:CONDition? 3.113 :STATus:OPERation:ENABle 0 to 32767 3.114 :STATus:OPERation:NTRansition 0 to 32767 3.113 :STATus:OPERation:PTRansition 0 to 32767...
  • Page 446 List of Commands Parameter Command SCPI Page info :SYSTem:MSEQuence:FREE? not-SCPI 3.118 :SYSTem:MSEQuence:MODE AUTO | STEP not-SCPI 3.118 :SYSTem:MSEQuence:SELect ’Name of sequence’ not-SCPI 3.118 :SYSTem:MSEQuence[:RCL] 1 to 50 {,1 to 50} not-SCPI 3.118 :SYSTem:MSEQuence[:RCL]:POINts? not-SCPI 3.118 :SYSTem:PRESet 3.118 :SYSTem:PROTect1|2|3[:STATe] ON | OFF, password not-SCPI 3.119 :SYSTem:SECurity[:STATe]...
  • Page 447 List of Commands Parameter Command SCPI Page info :TEST:ROM? 3.121 :TRIGger:DM:SOURce AUTO | SINGle | EXTernal not-SCPI 3.123 :TRIGger:DM[:IMMediate] not-SCPI 3.123 TRIGger:LIST[:IMMediate] not-SCPI 3.124 :TRIGger:LIST:SOURce AUTO | SINGle | EXTernal not-SCPI 3.125 :TRIGger:MSEQuence:SOURce AUTO | SINGle | EXTernal not-SCPI 3.125 :TRIGger:MSEQuence[:IMMediate] not-SCPI 3.125...

  • Page 449: Including Iec-Bus Library For Quickbasic

    Programming Examples Annex D Programming Examples The examples explain the programming of the instrument and can serve as a basis to solve more complex programming tasks. QuickBASIC has been used as programming language. However, the programs can be translated into other languages.

  • Page 450: Transmission Of Instrument Setting Commands

    Programming Examples Transmission of Instrument Setting Commands Output frequency, output level and AM modulation are set in this example. The settings correspond to the sample setting for first users in manual control. By analogy to the step width setting of the rotary knob, the step width is additionally set for the alteration of the RF frequency in the case of UP and DOWN.

  • Page 451: List Management

    Programming Examples List Management REM ----------------------------- Example of list management ------------------------- CALL IBWRT(generator%, "LIST:SELECT "+CHR$(34)+"LIST1"+CHR$(34)) ’Select list "LIST1", is generated if necessary CALL IBWRT(generator%, "LIST:POWER -30,-15,-10,-5,0,0.1) ’Fill power list with values CALL IBWRT(generator%, "LIST:FREQ 575MHz,235MHz,123MHz,456MHz,735MHz,333MHz" ’Fill frequency list with values CALL IBWRT(generator%, "LIST:DWELL 0.2") ’200ms per item CALL IBWRT(generator%, "TRIGGER21:LIST:SOURCE AUTO")

  • Page 452: Service Request

    Programming Examples Service Request The service request routine requires an extended initialization of the instrument in which the respective bits of the transition and enable registers are set. In order to be able to use the service request function in conjugation with a National Instruments GPIB driver, the setting "Disable Auto Serial Poll"...
  • Page 453 Programming Examples Reading out the status event registers, the output buffer and the error/event queue is effected in subroutines. REM ---------------- Subroutines for the individual STB bits -------------- Outputqueue: ’Reading the output buffer Message$ = SPACE$(100) ’Make space for response CALL IBRD(generator%, Message$) PRINT "Message in output buffer :";...
  • Page 455 Index Bit errors (ERMES) ..........2.105, 3.51 Index Bit rate 4FSK modulation ..........2.98, 3.48 FFSK modulation ..........2.101, 3.49 FLEX ..............2.100, 3.57 FSK modulation ..........2.95, 3.47 GFSK modulation..........2.90, 3.44 4FSK modulation ............. 2.97, 3.48 GMSK modulation..........2.88, 3.43 POCSAC ............
  • Page 456 Index ILS-LOC .............. 2.74, 3.72 FM ................2.57 Marker Beacon............ 2.76, 3.80 PM ................2.59 VOR ..............2.66, 3.108 Difference coding (GSM)......... 2.88, 3.43 Command Difference in depth of modulation (DM) addressed ..............8C.3 ILS-GS..............2.69, 3.70 parameter...............3.9 ILS-LOG ............. 2.73, 3.73 recognition..............
  • Page 457 Index Functional test..............4.5 Fast Restore Mode ............3.143 FFSK modulation........... 2.100, 3.49 GET (Group Execute Trigger) ........3.131 testing ................5.37 GFSK modulation............ 2.89, 3.43 Filler data testing................5.29 ERMES ..............2.105 GMSK modulation ........... 2.87, 3.41 FLEX ................2.113 testing................
  • Page 458 Index Interrupt ................3.136 dwell Interrupt-free level setting ........2.45, 5.18 LIST ................ 3.76 IST flag................3.15 MSEQ ............2.148, 3.119 edit................2.31 entry delete ..............2.35 insert ............... 2.34 -/ ⇐ fill 2.32 [ASSIGN] ..............2.21 frequency............2.143, 3.76 [ERROR] ..............2.170 function LEARN ..........
  • Page 459 Index HELP................2.169 QPSK ................3.45 LEVEL - ALC..............2.46 REFLEX............2.120, 3.94 LEVEL - EMF ...............2.49 sources ................ 2.50 LEVEL - LEVEL............2.43 stereo..............2.63, 3.100 LEVEL - UCOR ............2.47 VOR..............2.65, 3.106 LF OUTPUT ............... 2.132 Modulation depth LIST ................2.145 30-Hz VAR signal (VOR)..........
  • Page 460 Index level RF................2.43 FSK modulation ..........2.96, 3.48 LF ........... 2.11, 2.13, 2.132, 3.28 GFSK modulation..........2.90, 3.45 MARKER....2.13, 2.137, 2.144, 2.166, 3.79, 3.112 GMSK modulation..........2.88, 3.43 REF..............2.15, 2.155 marker signal ............. 2.166 reflection coefficient .............5.17 pulse modulation..........2.62, 3.91 RF ..............
  • Page 461 Index IEC-bus ............2.15, 2.17, 1 QUEStionable register ........3.116, 3.139 RS-232................ A6.4 Status byte (STB)............3.136 Remove paneling..............1.4 Status line ................ 2.18 Reset status reporting system ........3.142 STATUS page ..............2.169 Residual Status register overview ..........3.135 AM ................5.15 Status reporting system..........
  • Page 462 Index input ..................2.13, 2.62, 2.82, 2.83, 2.136, 2.144, 2.150, 2.166, 3.40, 3.128 LIST ..............2.144, 3.126 memory extension (XMEM) ......... 2.82, 3.40 MSEQ ............. 2.150, 3.127 oscilloscope ............... 2.136 pulse modulation ..........2.62, 3.127 sweep.............. 2.136, 3.124 XY recorder ..............2.136 Truth values................3.8 TUNE input ............

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