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Wiltron 680 B Series Operation Manual

Synthesized cw generator
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SERIES
680XXB
SYNTHESIZED CW GENERATOR
OPERATION MANUAL
490 JARVIS DRIVE
P/N: 10370-10264
REVISION: D
MORGAN HILL, CA 95037-2809
PRINTED: OCTOBER 1996
COPYRIGHT 1994 WILTRON CO.

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  • Page 1 SERIES 680XXB SYNTHESIZED CW GENERATOR OPERATION MANUAL 490 JARVIS DRIVE P/N: 10370-10264 REVISION: D MORGAN HILL, CA 95037-2809 PRINTED: OCTOBER 1996 COPYRIGHT 1994 WILTRON CO.
  • Page 2 LIMITATION OF WARRANTY The foregoing warranty does not apply to WILTRON connectors that have failed due to normal wear. Also, the warranty does not apply to defects resulting from improper or inadequate maintenance by the Buyer, unauthorized modification or misuse, or operation outside of the environmental specifications of the product.
  • Page 3 MANUAL CHANGES MANUAL: Title: Series 680XXB Synthesized CW Generator Operation Manual Part Number: 10370-10264 Rev. Ltr/Date: D / October 1996 CHANGE PACKET Part Number: 10900-00193 INSTRUCTIONS 1. Make the manual changes listed below. The changes are listed in numerical order by page number. Effectivity is all CW generator serial numbers.
  • Page 4 MANUAL CHANGES MANUAL: Title: Series 680XXB Synthesized CW Generator Operation Manual Part Number: 10370-10264 Rev. Ltr/Date: D / October 1996 CHANGE PACKET Part Number: 10900-00207 INSTRUCTIONS 1. Make the manual changes listed below. The changes are listed in numerical order by page number. Effectivity is all CW generator serial numbers.
  • Page 6 Safety Symbols To prevent the risk of personal injury or loss related to equipment malfunction, WILTRON Company uses the following symbols to indicate safety-related information. For your own safety, please read the informa- tion carefully BEFORE operating the equipment. WARNING WARNING indicates a hazard.
  • Page 7 For Safety WARNING When supplying power to this equipment, always use a three-wire power cable connected to a three-wire power line outlet. If power is supplied without grounding the equip- ment in this manner, there is a risk of receiving a severe or fatal electric shock.
  • Page 8 TABLE OF CONTENTS Chapter 1 — General Information Chapter 1 provides general information about the WILTRON Series 680XXB Synthesized CW Gen- erator. It includes a general description of the CW generator and information on its identification number, related manuals, options, and performance specifications. A listing of recommended test equipment is also provided.
  • Page 9 Table of Contents (Continued) Appendix A — Rear Panel Connectors Appendix A provides descriptions of the rear panel connectors on a typical Series 680XXB Synthe- sized CW Generator. It includes pinout diagrams and descriptions for the AUX I/O and IEEE-488 GPIB connectors.

  • Page 10: Table Of Contents

    Chapter 1 General Information Table of Contents SCOPE OF MANUAL ....1-3 INTRODUCTION ....1-3 DESCRIPTION .
  • Page 11 Figure 1-1. Series 680XXB Synthesized CW Generator...

  • Page 12: Scope Of Manual

    SCOPE OF MANUAL This manual provides general information, installation, and operating information for the WILTRON Series 680XXB Synthesized CW Gener- ator. (Throughout this manual, the terms 680XXB and CW generator will be used interchangeably to refer to the instrument.) Manual or- ganization is shown in the table of contents.
  • Page 13 GENERAL 680XXB INFORMATION MODELS Table 1-1. Series 680XXB Models (1 of 2) 680XXB Frequency Output Power Output Power Model (GHz) w/Step Attenuator 68037B 2.0 – 20.0 GHz +13.0 dBm +11.0 dBm 68045B 0.5 – 20.0 GHz +13.0 dBm +11.0 dBm 68047B 0.01 –...
  • Page 14 GENERAL 680XXB INFORMATION MODELS Table 1-1. Series 680XXB Models (2 of 2) 680XXB Frequency Output Power Output Power Model (GHz) w/Step Attenuator 0.01 – 2.0 GHz +12.0 dBm 2.0 – 20.0 GHz +10.0 dBm 68097B 20.0 – 40.0 GHz +2.5 dBm Available 40.0 –...

  • Page 15: Identification Number

    INFORMATION NUMBER IDENTIFICATION NUMBER All WILTRON instruments are assigned a unique six-digit ID number, such as “401001”. The ID number is imprinted on a decal that is af- fixed to the rear panel of the unit. Special-order instrument configura- tions also have an additional special serial number tag attached to the rear panel of the unit.

  • Page 16: Options

    Option 11, 0.1 Hz Frequency Resolution. Provides frequency resolution of 0.1 Hz. Option 14, WILTRON 360B VNA Compatibility. Modifies rack mounting hardware to mate unit in a WILTRON 360B VNA con- sole. Option 15A, High Power Output. Adds high-power RF compo- nents to the instrument providing increased RF output power in the 2–26.5 GHz frequency range.

  • Page 17: Performance Specifications

    GENERAL RECOMMENDED INFORMATION TEST EQUIPMENT Option 19, SCPI Programmability. Adds GPIB command mne- monics complying with Standard Commands for Programmable Instruments (SCPI), Version 1993.0. SCPI programming complies with IEEE 488.2-1987. PERFORMANCE Synthesizer performance specifications are provided in Appendix B. SPECIFICATIONS RECOMMENDED TEST Table 1-2 lists the recommended test equipment for performing the Se- EQUIPMENT...
  • Page 18 Chapter 2 Installation Table of Contents INTRODUCTION ....2-3 INITIAL INSPECTION ....2-3 PREPARATION FOR USE .

  • Page 19: Introduction

    WIL- TRON Customer Service. If either the shipping container is damaged or the cushioning material shows signs of stress, notify the carrier as well as WILTRON. Keep the shipping materials for the carrier’s inspec- tion. 680XXB OM...

  • Page 20: Preparation For Use

    PREPARATION INSTALLATION FOR USE PREPARATION FOR USE Preparation for use consists of (1) checking that the rear panel line volt- age selector switch is set for the correct line voltage and (2) connecting the CW generator to the power source. The following paragraphs pro- vide these procedures along with information about power require- ments, warmup times, and the operating environment.

  • Page 21: Standby Operation

    PREPARATION INSTALLATION FOR USE Line Fuse Line Voltage Selector Switch GPIB Connector Figure 2-1. CW Generator Rear Panel showing Power Connection Standby Op- Whenever the CW generator is not being used it eration should be left connected to the power source and placed in standby.

  • Page 22: Warmup Time

    PREPARATION INSTALLATION FOR USE Warmup From a cold start (ac power application), the CW gen- Time erator requires approximately 120 hours (5 days) of –8 warm up to achieve 2 x 10 /day frequency accuracy and stability. If the Option 16 time base is installed, the 680XXB requires approximately 72 hours (3 days) of warm –10 up to achieve 5 x 10...

  • Page 23: Gpib Setup And Interconnection

    CW generator and the controller. This interconnection is via a standard GPIB cable. The WILTRON Part number for such a cable is 2000-1, -2, or -4 (1, 2, or 4 meters in length). Setting the The default GPIB address is 5.
  • Page 24 GPIB SETUP AND INSTALLATION INTERCONNECTION Now press the menu soft-key Config . The System Configuration Menu (shown below) is displayed. To go to the Configure GPIB menu from this menu, press the menu soft-key GPIB . The Configure GPIB Menu (shown below) is displayed. Press the menu soft-key GPIB Address to change the current GPIB address of the CW generator.

  • Page 25: Selecting The Line Terminator

    GPIB SETUP AND INSTALLATION INTERCONNECTION Selecting Data is delimited on the GPIB by either the carriage the Line return (CR) ASCII character or both the carriage re- Terminator turn and line feed (CR/LF) ASCII characters. Which character is used depends upon the requirements of the system controller.

  • Page 26: Rack Mounting Kit Installation

    RACK MOUNTING KIT INSTALLATION INSTALLATION RACK MOUNTING KIT The rack mounting kit (Option 1) contains a set of track slides (90° tilt INSTALLATION capability), mounting ears, and front panel handles for mounting the CW generator in a standard 19-inch equipment rack. The following pro- cedure provides instructions for installing the rack mounting hardware on to the instrument.
  • Page 27 (WILTRON P/N 2000-560) to avoid damage to the instrument. Step 7 Insert two green-headed screws through the holes near the rear of the slide assem- bly and into the metric tapped holes in the side of the instrument.
  • Page 28 RACK MOUNTING KIT INSTALLATION INSTALLATION Step 10 Place the right side inner slide assembly onto the instrument case with the handle towards the front of the instrument. Step 11 Insert two green-headed screws through the holes in the slide assembly behind the handle and into the metric tapped holes in the side of the instrument.

  • Page 29: Preparation For Storage/Shipment

    Seal the carton by using either shipping tape or an industrial stapler. Address the Container. If the instrument is being returned to WILTRON for service, mark the address of the appropriate WIL- TRON service center (Table 2-1) and your return ad- dress on the carton in one or more prominent locations.
  • Page 30 WILTRON INSTALLATION SERVICE CENTERS Table 2-1. WILTRON Service Centers UNITED STATES FRANCE KOREA ANRITSU WILTRON COMPANY ANRITSU WILTRON S.A ANRITSU WILTRON KOREA (AWK) 685 Jarvis Drive 9 Avenue du Quebec #807 Seoulin Bldg. 45-25, Yeoido Morgan Hill, CA 95037-2809 Zone de Courtaboeuf...
  • Page 31 Chapter 3 Local (Front Panel) Operation Table of Contents INTRODUCTION ....3-5 FRONT PANEL LAYOUT ....3-6 Line Key .
  • Page 32 Table of Contents (Continued) CW FREQUENCY OPERATION ..3-21 Selecting CW Mode ....3-21 Selecting a CW Frequency ... . . 3-21 Selecting a Power Level .
  • Page 33 Table of Contents (Continued) 3-12 SYSTEM CONFIGURATION ... . 3-61 Configuring the Front Panel ... . 3-62 Configuring the Rear Panel ... . 3-63 Configuring the RF .

  • Page 34: Introduction

    Chapter 3 Local (Front Panel) Operation INTRODUCTION This chapter provides information and instructions on operating the Series 680XXB Synthesized CW Generator using the front panel con- trols. It contains the following: Illustrations and diagrams of the front panel, data display area, and data entry area that identify and describe all front panel con- trols, inputs, and outputs.

  • Page 35: Front Panel Layout

    LOCAL (FRONT FRONT PANEL PANEL) OPERATION LAYOUT FRONT PANEL LAYOUT The 680XXB front panel is divided into two main areas—the data dis- play area and the data entry area. The following paragraphs provide a brief description of the front panel controls, inputs, outputs, and data display and data entry areas as shown in Figure 3-1.

  • Page 36: Data Entry Area

    LOCAL (FRONT FRONT PANEL PANEL) OPERATION LAYOUT Data The data entry area consists of data entry keys and Entry Area controls that provide for (1) changing values for each 680XXB parameter, and (2) terminating the value entry and assigning the appropriate units (GHz, MHz, dBm, etc.).

  • Page 37: Data Display Area

    LOCAL (FRONT DATA DISPLAY PANEL) OPERATION AREA DATA DISPLAY AREA The data display area consists of the data display and the surrounding menu keys. The data display is a dot matrix liquid crystal display (LCD) that provides 16 lines of 40 characters each. Information is pre- sented on the LCD in the form of menu displays.

  • Page 38: Menu Display Format

    LOCAL (FRONT DATA DISPLAY PANEL) OPERATION AREA Menu The menu display is divided into specific areas that Display show the frequency and power level information for Format the current CW generator setup. Menu labels for the current menu’s soft-keys appear along the bot- tom and right side of the display.

  • Page 39: Menu Keys

    LOCAL (FRONT DATA DISPLAY PANEL) OPERATION AREA Window Display A window display that overlays a portion of the cur- rent menu display is used to (1) show the parameter being edited; (2) display selection lists of preset fre- quencies, power levels, markers, etc.; (3) show the system configuration choices and current selections;...
  • Page 40 LOCAL (FRONT DATA DISPLAY PANEL) OPERATION AREA SYSTEM—This menu provides you with ac- cess to sub-menus that let you (1) reset the in- strument to factory-selected default values; (2) configure the front panel, rear panel, RF, and GPIB; (3) set incremental sizes for editing fre- quency, power level, and time parameters;...

  • Page 41: Data Entry Area

    LOCAL (FRONT DATA ENTRY PANEL) OPERATION AREA DATA ENTRY AREA The value of a selected 680XXB parameter can be changed using the rotary data knob and/or keys of the data entry area. Each element of the data entry area is identified in Figure 3-3 and described in the fol- lowing paragraphs.
  • Page 42 LOCAL (FRONT DATA ENTRY PANEL) OPERATION AREA Rotary Data Knob The rotary data knob can be used to change the value of a parameter that is open for editing. The cursor is moved under the open parameter using the < and > pads of the cursor control key. Then, by slowly turning the knob clockwise or counter-clock- wise the value of the parameter is increased or de- creased by the unit size.

  • Page 43: Instrument Start-Up

    LOCAL (FRONT INSTRUMENT PANEL) OPERATION START-UP INSTRUMENT START-UP Now that you have familiarized yourself with the layout of the CW generator’s front panel controls and data display, you are ready to be- gin operating the instrument. Begin by powering it up. Powering Up Connect the 680XXB to an ac power source by fol- the 680XXB...

  • Page 44: Self-Testing The 680Xxb

    LOCAL (FRONT INSTRUMENT PANEL) OPERATION START-UP Self-Testing The 680XXB firmware includes internal diagnostics the 680XXB that self-test the instrument. These self-test diag- nostics perform a brief go/no-go test of most of the PCBs and other internal assemblies. If the CW gen- erator fails self-test, an error message is displayed on the data display.
  • Page 45 LOCAL (FRONT RESET (DEFAULT) PANEL) OPERATION PARAMETERS Table 3-1. Reset (Default) Paramenters (1 of 2) 680XXB FREQUENCY PARAMETERS (GHz) MODEL ∆F M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 NUMBER 68037B 3.5 2.0 20.0 2.0 5.0 8.0 11.0 14.0 17.0 20.0 3.5 2.0 20.0 2.0 5.0 8.0 11.0 14.0 17.0 20.0 1.0 68045B 3.5 2.2 20.0 2.0 5.0 8.0 11.0 14.0 17.0 20.0 3.5 2.0 20.0 2.0 5.0 8.0 11.0 14.0 17.0 20.0 1.0 68047B...
  • Page 46 LOCAL (FRONT RESET (DEFAULT) PANEL) OPERATION PARAMETERS Table 3-1. Reset (Default) Paramenters (2 of 2) 680XXB POWER LEVEL PARAMETERS (dBm) MODEL NUMBER 68075B +1.0 –1.0 –2.0 –3.0 –4.0 –5.0 –6.0 –7.0 –8.0 68077B +1.0 –1.0 –2.0 –3.0 –4.0 –5.0 –6.0 –7.0 –8.0 68085B...

  • Page 47: Entering Data

    LOCAL (FRONT ENTERING PANEL) OPERATION DATA ENTERING DATA Before proceeding to the various modes of CW generator operation, you need to know how to enter data from the front panel. Entering data refers to changing a parameter’s value by editing its current value or entering a new value to replace the current value.

  • Page 48: Editing The Current Value

    LOCAL (FRONT ENTERING PANEL) OPERATION DATA Editing the To change the current value of a parameter by edit- Current ing, you can use either the cursor control key or the Value rotary data knob. Using the Cursor Control Key Cursor Using the <...

  • Page 49: Entering A New Value

    LOCAL (FRONT ENTERING PANEL) OPERATION DATA Entering a To change the current value of a parameter by enter- New Value ing a new value for the parameter, use the data en- try keypad and termination keys. As soon as you press one of the keys on the data en- try keypad, the current parameter display clears for entry of a new value.

  • Page 50: Cw Frequency Operation

    LOCAL (FRONT CW FREQUENCY PANEL) OPERATION OPERATION CW FREQUENCY One of the CW generator’s major functions is to produce discrete CW OPERATION frequencies across the frequency range of the instrument. The follow- ing paragraphs describe how to place the 680XXB in the CW fre- quency mode, select a CW frequency and power level for output, and activate the CW ramp.
  • Page 51 LOCAL (FRONT CW FREQUENCY PANEL) OPERATION OPERATION Selecting a Preset Frequency To select one of the preset frequencies for output, press the main menu key FREQUENCY CONTROL The CW Frequency Control menu, shown below, is displayed. This menu lets you (1) select preset fre- quencies F0, F1, F2, M1, or M2 for output, (2) go to the frequency list menu, or (3) go to the tagged fre- quencies menu.

  • Page 52: Selecting A Power Level

    LOCAL (FRONT CW FREQUENCY PANEL) OPERATION OPERATION Press Output Freq to output the selected frequency. This frequency is output until you select another fre- quency from the list and press Output Freq . On the frequency list, the output frequency selection is marked by a black square or, if tagged, an F high- lighted in reverse video.

  • Page 53: Cw Ramp

    LOCAL (FRONT CW FREQUENCY PANEL) OPERATION OPERATION NOTE You can also select any of the preset power levels or a power level sweep for a CW frequency. For instructions, refer to paragraphs 3-9 (Fixed Power Level Op- eration) and 3-10 (Power Level Sweep Op- eration).

  • Page 54: Sweep Frequency Operation

    LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION SWEEP FREQUENCY The CW generator can generate broad (full range) and narrow band OPERATION sweeps across the frequency range of the instrument. The 680XXB has two sweep frequency modes—step sweep and manual sweep. The fol- lowing paragraphs describe how to select each sweep frequency mode, a sweep range, an output power level, a sweep trigger, and frequency markers.

  • Page 55: Setting Step Size And Dwell Time

    LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION Setting Step There are two ways to set the size of each step of Size and the step sweep—set the step size or set the number Dwell Time of steps. The step size range is 1 kHz to the full fre- quency range of the CW generator (0.1 Hz to full fre- quency range with Option 11);...

  • Page 56: Selecting A Sweep Trigger

    LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION Selecting a The 680XXB provides sweep triggering for step fre- Sweep quency sweep and CW power sweep. The CW gener- Trigger ator has three modes of sweep triggering, each selectable from the trigger menu. The following is a description of each mode.

  • Page 57: Selecting Manual Sweep Mode

    LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION Selecting In manual sweep frequency mode, the output fre- Manual quency can be manually tuned in phase-locked Sweep Mode steps between the selected start and stop frequen- cies using the rotary data knob. As the knob is turned, the current output frequency is displayed on the data display as Fm.

  • Page 58: Selecting A Sweep Range

    LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION Selecting a Selecting a sweep range involves choosing a start Sweep Range and a stop frequency for the frequency sweep. The sweep range selection process is identical for both the step and manual sweep frequency modes. There are several ways you can select a sweep range, in- cluding: Editing the current start and stop frequency...
  • Page 59 LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION Selecting a Preset Sweep Range There are four preset sweep range parameters, se- lectable in the step sweep and manual sweep fre- quency modes. The following is a description of each preset sweep range. F1-F2–provides a frequency sweep between the start frequency, F1, and the stop frequency, F3-F4–provides a frequency sweep between...

  • Page 60: Selecting A Power Level

    LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION Setting a Preset Sweep Range–At the menu, se- lect the sweep range (F1-F2, F3-F4, F5-dF, or F6-dF) that you wish to set. The menu then displays the current frequency parameters for the selected sweep range.

  • Page 61: Frequency Markers

    LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION Frequency The CW generator provides up to 20 independent, Markers pre-settable markers, F0-F9 and M0-M9, that can be used in the step sweep frequency mode for pre- cise frequency identification. Marker frequency accu- racy is the same as sweep frequency accuracy.
  • Page 62 LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION Use the cursor control key to select a frequency pa- rameter from the marker list. The selected fre- quency parameter is highlighted in reverse video and displayed in full below the marker list. Editing a Marker List Frequency If you want to change a selected marker list fre- quency parameter’s value, press Edit to open the...

  • Page 63: Selecting Alternate Sweep Mode

    LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION Selecting In alternate sweep frequency mode, the CW gener- Alternate ator’s output frequency sweeps alternately between Sweep Mode any two sweep ranges in step sweep. To select the alternate sweep mode, start with the Step Sweep Menu display (below).
  • Page 64 LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION Now, press Previous Menu to return to the Step Sweep Menu display. Notice the changes to the Step Sweep Menu display (below). These changes indicate that the alternate sweep frequency mode is active. Now, press Alt Swp Menu to return to the Alter- nate Sweep menu.
  • Page 65 LOCAL (FRONT SWEEP FREQUENCY PANEL) OPERATION OPERATION When you are done selecting the alternate sweep range, press Previous Menu to return to the Alter- nate Sweep menu. Selecting an Alternate Sweep Power Level To go to the Alternate Level menu (below) from the Alternate Sweep menu, press Alt Level .

  • Page 66: Fixed Power Level Operation

    LOCAL (FRONT FIXED POWER PANEL) OPERATION LEVEL OPERATION FIXED POWER LEVEL The CW generator provides leveled output power over a maximum OPERATION range of up to 28 dB (up to 131 dB with option 2) for CW and sweep frequency operations. Instruments with option 15A provide leveled out- put power over a maximum range of up to 22 dB (up to 125 dB with op- tion 2).
  • Page 67 LOCAL (FRONT FIXED POWER PANEL) OPERATION LEVEL OPERATION and appropriate terminator key. To close the open power level parameter, press Edit L1 or make an- other menu selection. Selecting a Preset Power Level To select one of the preset power levels for output, press the main menu key LEVEL CONTROL...
  • Page 68 LOCAL (FRONT FIXED POWER PANEL) OPERATION LEVEL OPERATION Press Tag to mark a selected power level (place an L in front of it). If a power level is already tagged, pressing Tag will untag it (remove the L). Tagging selected power levels lets you quickly switch be- tween them using the scan keys of the Tagged Lev- els menu.

  • Page 69: Level Offset

    LOCAL (FRONT FIXED POWER PANEL) OPERATION LEVEL OPERATION Level Offset Level offset lets you compensate for a device on the CW generator’s output that alters the RF output power level at the point of interest. For example, the power level at the test device may be less or more than the displayed power level because of the loss through an external transmission line or the gain of an amplifier located between the 680XXB...

  • Page 70: Power Level Sweep Operation

    LOCAL (FRONT POWER LEVEL PANEL) OPERATION SWEEP OPERATION 3-10 POWER LEVEL The CW generator provides leveled output power sweeps at CW fre- SWEEP OPERATION quencies and in conjunction with step frequency sweeps. Power level sweeps can be from a high level to a low level or vice versa. The follow- ing paragraphs provide descriptions and operating instructions for the CW power sweep mode and the sweep frequency/step power modes.

  • Page 71: Dwell Time

    LOCAL (FRONT POWER LEVEL PANEL) OPERATION SWEEP OPERATION Setting CW There are two ways to set the size of each step of Power Sweep the CW power sweep—set the step size or set the Step Size number of steps. The step size range is 0.01 dB to and Dwell the full power range of the synthesizer;...

  • Page 72: Selecting A Cw Power Sweep Trigger

    LOCAL (FRONT POWER LEVEL PANEL) OPERATION SWEEP OPERATION Selecting a There are three modes of triggering provided for the CW Power CW power sweep—automatic, external, and single. Sweep The sweep trigger is selectable from the CW Level Trigger Sweep Trigger menu. The following is a description of each trigger mode.

  • Page 73: Selecting A Power Level Sweep Range

    LOCAL (FRONT POWER LEVEL PANEL) OPERATION SWEEP OPERATION Selecting a Selecting a power level sweep range consists of Power Level choosing a start and stop level for the power level Sweep Range sweep. The power level sweep range selection proc- ess is identical for all power level sweep modes—...
  • Page 74 LOCAL (FRONT POWER LEVEL PANEL) OPERATION SWEEP OPERATION Selecting a Preset Power Level Sweep Range There are five preset power level sweep range pa- rameters selectable in the power level sweep modes. These preset power level sweep range parameters are L1-L2, L3-L4, L5-L6, L7-L8, and L9-L0. To select one of the preset power level sweep ranges from a Level Sweep menu, press the main menu key LEVEL...

  • Page 75: Selecting A Sweep Frequency / Step Power Mode

    LOCAL (FRONT POWER LEVEL PANEL) OPERATION SWEEP OPERATION Selecting a In step sweep frequency/step power mode, a power Sweep Fre- level step occurs after each frequency sweep. The quency / Step power level remains constant for the length of time Power Mode required to complete each frequency sweep.

  • Page 76: Setting Power Level Step Size

    LOCAL (FRONT POWER LEVEL PANEL) OPERATION SWEEP OPERATION Setting There are two ways to set the step size of the power Power Level level step that occurs after each frequency sweep– Step Size set the step size or set the number of steps. The step size range is 0.01 dB to the full power range of the synthesizer;...

  • Page 77: Leveling Operations

    LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS 3-11 LEVELING The 680XXB generates leveled output power over a maximum range OPERATIONS of up to 28 dB (up to 131 dB with option 2). Instruments with option 15A provide leveled output power over a maximum range of up to 22 dB (up to 125 dB with option 2).
  • Page 78 LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS The ALC Mode menu lets you perform the following: Go to the leveling menu (select the ALC mode of operation). Go to the attenuation menu (decouple the at- tenuator, if equipped, from the ALC system and set the power level and attenuation).
  • Page 79 LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS Before going to the Leveling Menu from the ALC Mode menu, select whether the external ALC signal is to be connected to the front- or rear-panel EXT ALC IN connector. At the ALC Mode menu, press Ext ALC Front to se- lect front panel input, or Ext ALC Rear to select rear panel input.
  • Page 80 LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS At the Leveling menu, pressing either Internal or Fixed Gain will turn off external leveling. Press Previous Menu to return to the ALC Mode menu. Fixed Gain In the fixed gain mode, the ALC is disabled. The RF Level DAC and step attenuator (if installed) are used to control the relative power level.

  • Page 81: Attenuator Decoupling

    LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS Attenuator In 680XXBs equipped with option 2 step attenu- Decoupling ators, the ALC and attenuator work in conjunction to provide leveled output power down to –115 dBm. In the normal (coupled) leveling mode, when the de- sired power level is set, the correct combination of ALC level and attenuator setting is determined by the instrument firmware.

  • Page 82: Alc Power Slope

    LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS ALC Power The ALC power slope function lets you compensate Slope for system, cable, and waveguide variations due to changes in frequency, by linearly increasing or de- creasing power output as the frequency increases. As shown in the following illustration, the power slope function provides you with the ability to set both the power slope and the pivot point.
  • Page 83 LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS Press Slope On/Off to activate the ALC power slope function. Press Edit Pivot to open the pivot point frequency parameter for editing. Edit the current frequency us- ing the cursor control key or rotary data knob or en- SLOPE ter a new value using the keypad and appropriate termination key.

  • Page 84: User Level Calibration

    LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS User Level The user level (flatness correction) calibration func- Calibration tion lets you calibrate out path variations with fre- quency that are caused by external switching, amplifiers, couplers, and cables in the test setup. This is done by means of an entered power-offset ta- ble from a GPIB power meter or calculated data.
  • Page 85 LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS Equipment Setup To create a power-offset table for user level flatness correction, connect the equipment (shown in Figure 3-4) as follows: Step 1 Using a GPIB cable, connect the Power Meter to the 680XXB. Step 2 Calibrate the Power Meter with the Power Sensor.
  • Page 86 LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS At the Configure GPIB menu, press More to go to an additional Configure GPIB menu (below). Press Pwr Mtr Address to change the address of the power meter on the GPIB (the power meter’s de- fault address is 13).
  • Page 87 LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS Place the CW generator in a fixed power level mode by pressing the main menu key LEVEL/ALC SELECT At the resulting menu display, press Level . The 680XXB is now in fixed (non-swept) power level mode.
  • Page 88 LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS range is 2 to 801.) When you have finished setting the open number-of-points parameter, close it by pressing Edit Points again or by making another menu selection. Now, press Start Cal to begin automatically taking power level correction information at each fre- quency point.
  • Page 89 LOCAL (FRONT LEVELING PANEL) OPERATION OPERATIONS Erasing the Power-Offset Tables from Memory The power-offset tables are stored in non-volatile memory. A master reset is required to erase the con- tents of the tables and reprogram them with default data. To perform a master reset, proceed as follows: NOTE Step 1 With the 680XXB in standby, press and...

  • Page 90: System Configuration

    LOCAL (FRONT SYSTEM PANEL) OPERATION CONFIGURATION 3-12 SYSTEM The system configuration function provides menus that let you set or CONFIGURATION select instrument configuration items; for example, display intensity, frequency scaling, polarity of blanking and video marker outputs, RF on or off during retrace or between steps, GPIB operating parameters, external interface language, and increment sizes for frequency, power level, and time parameters.

  • Page 91: Configuring The Front Panel

    LOCAL (FRONT SYSTEM PANEL) OPERATION CONFIGURATION Configuring Configuring the front panel of the CW generator in- the Front volves adjusting the intensity level of the data dis- Panel play and setting the frequency scaling as required. To go to the Configure Front Panel menu from the System Configuration menu, press Front Panel .

  • Page 92: Configuring The Rear Panel

    LOCAL (FRONT SYSTEM PANEL) OPERATION CONFIGURATION Configuring Configuring the rear panel of the CW generator con- the Rear sists of selecting the polarity of the retrace blank- Panel ing, bandswitch blanking, retrace penlift, and video marker outputs. To go to the Configure Rear Panel menu from the System Configuration menu, press Rear Panel .

  • Page 93: Configuring The Rf

    LOCAL (FRONT SYSTEM PANEL) OPERATION CONFIGURATION Configuring Configuring the RF of the 680XXB involves select- the RF ing the state of the RF during retrace, during fre- quency switching in CW and step modes, and at reset and selecting whether a sweep triggered by a single or external trigger should rest at the top or bottom of the sweep ramp.

  • Page 94: Configuring The Gpib

    LOCAL (FRONT SYSTEM PANEL) OPERATION CONFIGURATION Configuring Configuring the GPIB for the CW generator consists the GPIB of the following: Selecting a GPIB address and the GPIB line terminator for the 680XXB. Selecting the model and GPIB address for the power meter used to create a user level flat- ness correction power-offset table.
  • Page 95 LOCAL (FRONT SYSTEM PANEL) OPERATION CONFIGURATION Additional Configure GPIB Menu When you press More the additional Configure GPIB menu (below) is displayed. This menu lets you perform the following: Select the model and GPIB address for the power meter that is used to create a user level flatness correction power-offset table.

  • Page 96: Setting Increment Sizes

    LOCAL (FRONT SYSTEM PANEL) OPERATION CONFIGURATION Setting The Increment menu lets you set the incremental Increment size for editing frequency, power level, and time pa- Sizes rameters. When the increment mode is selected on, these parameter values will increase or decrease by the set amount each time the ∧...

  • Page 97: Saving/Recalling Instrument Setups

    LOCAL (FRONT SAVING/RECALLING PANEL) OPERATION INSTRUMENT SETUPS 3-13 SAVING/RECALLING The 680XXB offers the capability to store up to ten complete front INSTRUMENT SETUPS panel setups. The setups are numbered 0 through 9. The following paragraphs describe how to save and recall front panel setups. Saving Once you have decided that an 680XXB setup Setups...

  • Page 98: Erasing Stored Setups

    LOCAL (FRONT SAVING/RECALLING PANEL) OPERATION INSTRUMENT SETUPS Erasing The front panel setups are stored in non-volatile Stored memory. A master reset is required to erase the con- Setups tents of the setups and reprogram them with de- fault data. To perform a master reset, proceed as follows: NOTE Step 1 With the 680XXB in standby, press and...

  • Page 99: Secure Operation

    LOCAL (FRONT SECURE PANEL) OPERATION OPERATION 3-14 SECURE OPERATION The 680XXB can be operated in a secure mode of operation. In this se- cure mode, the display of all frequency and power level parameters is disabled during both local (front panel) and remote (GPIB) operations. The instrument will continue to function normally in all other re- spects.
  • Page 100 Chapter 4 Local Operation–Menu Maps Table of Contents INTRODUCTION ....4-3 MENU MAP DESCRIPTION ... . 4-3...
  • Page 101 Chapter 4 Local Operation–Menu Maps INTRODUCTION This chapter provides menu maps that support the 680XXB front panel operating instructions found in Chapter 3. It includes menu maps for all of the frequency and power level modes of operation. In ad- dition, a menu map for system configuration is also provided.

  • Page 102: Sample Menu Map

    LOCAL OPERATION SAMPLE –MENU MAPS MENU MAP Main Menu Key Cursor A Main Typical Menu Soft-Key Points To The Menu Displayed Whenever (Indicates The Active Menu Display Functional Description The Menu Soft-Key Is Depressed Main Menu Key) CW/SWEEP Edit Current SELECT Frequency FREQUENCY...

  • Page 103: Cw Frequency Mode Menu Map

    LOCAL OPERATION –MENU MAPS FREQUENCY MODE CW/SWEEP Edit Current SELECT Frequency FREQUENCY Edit Highlighted CONTROL Frequency LEVEL/ALC SELECT Set Slave Edit Current DF Frequency Set Slave Frequency LEVEL CONTROL Power Level Offset in 360B VNA Mode Set Slave Main MODULATION Power Level Set Slave Power Level Set Slave Alternate...

  • Page 104: Step Sweep Frequency Mode Menu Map

    LOCAL OPERATION STEP SWEEP –MENU MAPS FREQUENCY MODE CW/SWEEP Edit Start Frequency SELECT FREQUENCY Edit End Frequency CONTROL Edit Dwell LEVEL/ALC SELECT Time Edit Current LEVEL Edit Step CONTROL Power Level Size On / Off Edit Number On / Off SYSTEM of Steps On / Off...

  • Page 105: Manual Sweep Frequency Mode Menu Map

    LOCAL OPERATION MANUAL SWEEP –MENU MAPS FREQUENCY MODE CW/SWEEP Edit Start Frequency SELECT FREQUENCY Edit End Frequency CONTROL LEVEL/ALC Edit Step Size SELECT LEVEL Edit Number of Steps CONTROL SYSTEM CW/SWEEP Edit Start Frequency SELECT FREQUENCY Edit End Frequency CONTROL LEVEL/ALC SELECT LEVEL...

  • Page 106: Fixed Power Level Mode Menu Map

    LOCAL OPERATION FIXED POWER –MENU MAPS LEVEL MODE CW/SWEEP Edit Current SELECT Power Level FREQUENCY CONTROL LEVEL/ALC SELECT Edit Power LEVEL Level Offset CONTROL On/Off Level Offset SYSTEM * Display Showing Level Offset On Tag/Untag Highlighted Edit Current CW/SWEEP Power Level Power Level SELECT FREQUENCY...

  • Page 107: Cw Power Sweep Mode Menu Map

    LOCAL OPERATION CW POWER –MENU MAPS SWEEP MODE CW/SWEEP Edit Start Power Level SELECT FREQUENCY Edit End Power Level CONTROL Edit Dwell TIme LEVEL/ALC SELECT Edit Step Size LEVEL On/Off CONTROL Edit Number of Steps On/Off SYSTEM On/Off CW/SWEEP Edit Start Power Level SELECT FREQUENCY Edit End Power Level...

  • Page 108: Sweep Frequency/Step Power Mode Menu Map

    LOCAL OPERATION SWEEP FREQUENCY/ –MENU MAPS STEP POWER MODE CW/SWEEP Edit Start Power Level SELECT FREQUENCY Edit End Power Level CONTROL LEVEL/ALC SELECT LEVEL Edit Step Size CONTROL Edit Number of Steps SYSTEM CW/SWEEP Edit Start Power Level SELECT FREQUENCY Edit End Power Level CONTROL LEVEL/ALC...

  • Page 109: Leveling Modes Menu Map

    LOCAL OPERATION LEVELING –MENU MAPS MODES Selects Internal ALC (Default Mode) CW/SWEEP SELECT Selects External ALC FREQUENCY CONTROL (External Detector Input) Selects Front Panel LEVEL/ALC SELECT External ALC Input Selects External ALC Power Meter Input LEVEL CONTROL Selects Rear Panel External ALC Input Selects ALC Off SYSTEM...

  • Page 110: System Configuration Menu Map

    LOCAL OPERATION SYSTEM –MENU MAPS CONFIGURATION CW /SW EEP Brightens The Display SELECT FREQUENCY Dims The Display CONTROL LEVEL/ALC SELECT Set Reference Multiplier LEVEL CONTROL SYSTEM Select +5V or -5V Level For Retrace and Bandswitch Blanking Select Normally Open or Closed Pen Lift Relay Contacts Select +5V or -5V level for Video Markers...
  • Page 111 Chapter 5 Operation Verification Table of Contents INTRODUCTION ....5-3 TEST EQUIPMENT ....5-3 TEST RECORDS .

  • Page 112: Introduction

    Chapter 5 Operation Verification INTRODUCTION This chapter contains three operation verification tests that can be used to verify Series 680XXB Synthesized CW Generator operation. Setup instructions and performance procedures are included for each test. The results can be compared with the specified limits that are shown on the test record forms that are provided for each test.

  • Page 113: Initial 680Xxb Checkout

    OPERATION INITIAL 680XXB VERIFICATION CHECKOUT tion test procedures and contain test information for all 680XXB mod- els. INITIAL 680XXB Before starting the operation verification tests in this chapter, perform CHECKOUT an initial checkout of the 680XXB to be tested. This initial checkout consists of applying power to the CW generator, verifying that it passes self-test, and resetting it to the factory default parameters.

  • Page 114: Cw Frequency Accuracy Test

    OPERATION CW FREQUENCY VERIFICATION ACCURACY TEST CW FREQUENCY The following test verifies that the CW frequency output of the ACCURACY TEST 680XXB is within accuracy specifications. Table 5-2, beginning on page 5-7, contains test records that you can copy and use to record test re- sults for this test.

  • Page 115: Test Procedure

    OPERATION CW FREQUENCY VERIFICATION ACCURACY TEST Test The following procedure tests both the coarse and Procedure fine loops to verify the accuracy of the CW frequency output. Step 1 Set up the 680XXB as follows: a. Reset the instrument by pressing SYSTEM , then RESET .
  • Page 116 OPERATION CW FREQUENCY VERIFICATION ACCURACY TEST Table 5-2A. CW Frequency Accuracy Test Record (for Standard Models) (1 of 3) Model 680 _ _ B Serial No. ____________________ Date ___________ 68037B / 68045B / 68047B 68053B / 68055B / 68059B 2.000 000 000* _____________________ 2.000 000 000* _____________________...
  • Page 117 OPERATION CW FREQUENCY VERIFICATION ACCURACY TEST Table 5-2A. CW Frequency Accuracy Test Record (for Standard Models) (2 of 3) Model 680 _ _ B Serial No. ____________________ Date ___________ 68063B / 68065B / 68069B 68075B / 68077B 2.000 000 000* _____________________ 2.000 000 000* _____________________...
  • Page 118 OPERATION CW FREQUENCY VERIFICATION ACCURACY TEST Table 5-2A. CW Frequency Accuracy Test Record (for Standard Models) (3 of 3) Model 680 _ _ B Serial No. ____________________ Date ___________ 68085B / 68087B 68095B / 68097B 2.000 000 000* _____________________ 2.000 000 000* _____________________ 6.000 000 000 _____________________...
  • Page 119 OPERATION CW FREQUENCY VERIFICATION ACCURACY TEST Table 5-2B. CW Frequency Accuracy Test Record (for Models with Option 11) (1 of 3) Model 680 _ _ B Serial No. ____________________ Date ___________ 68037B / 68045B / 68047B 68053B / 68055B / 68059B 2.000 000 000 0* _____________________ 2.000 000 000 0*...
  • Page 120 OPERATION CW FREQUENCY VERIFICATION ACCURACY TEST Figure 5-2B. CW Frequency Accuracy Test Record (for Models with Option 11) (2 of 3) Model 680 _ _ B Serial No. ____________________ Date ___________ 68063B / 68065B / 68069B 68075B / 68077B 2.000 000 000 0* _____________________ 2.000 000 000 0* _____________________...
  • Page 121 OPERATION CW FREQUENCY VERIFICATION ACCURACY TEST Table 5-2B. CW Frequency Accuracy Test Record (for Models with Option 11) (3 of 3) Model 680 _ _ B Serial No. ____________________ Date ___________ 68085B / 68087B 68095B / 68097B 2.000 000 000 0* _____________________ 2.000 000 000 0* _____________________...

  • Page 122: Power Level Accuracy And Flatness Tests

    OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS POWER LEVEL These tests verify that the power level accuracy and flatness of the ACCURACY AND 680XXB meet specifications. Table 5-3, beginning on page 5-17, con- FLATNESS TESTS tains test records that you can copy and use to record test results for these tests.

  • Page 123: Power Level Accuracy Test Procedure

    OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Power Level Power level accuracy is checked by stepping the Accuracy power down in 1 dB increments from its maximum Test Proce- rated power level. dure Step 1 Set up the 680XXB as follows: a.

  • Page 124: Power Level Flatness Test Procedure

    OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Power Level Power level flatness is checked by measuring the Flatness Test power level variation during a full band step sweep. Procedure Step 1 Set up the 680XXB as follows for a step sweep power level flatness test: a.
  • Page 125 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS g. Now, return to the Step Sweep menu by pressing the main menu key CW/SWEEP SELECT h. At the Step Sweep menu, press Sweep Ramp to go to the Step Sweep Ramp menu. i.
  • Page 126 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (1 of 46) Model 68037B Serial No. ____________________ Date ___________ Model 68037B (without Option 2A Step Attenuator) Power Level Accuracy * (CW Frequency = 5.0 GHz) Set Power Measured Power +13 dBm...
  • Page 127 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (2 of 46) Model 68037B Serial No. ____________________ Date ___________ Model 68037B (with Option 2A Step Attenuator) Power Level Accuracy * (CW Frequency = 5.0 GHz) Set Power Measured Power +11 dBm...
  • Page 128 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (3 of 46) Model 68037B w/Option 15A Serial No. ____________________ Date ___________ Model 68037B with Option 15A High Power (without Option 2A Step Attenuator) Power Level Accuracy * (CW Frequency = 5.0 GHz) Set Power...
  • Page 129 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (4 of 46) Model 68037B w/Option 15A Serial No. ____________________ Date ___________ Model 68037B with Option 15A High Power (with Option 2A Step Attenuator) Power Level Accuracy * (CW Frequency = 5.0 GHz) Set Power...
  • Page 130 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (5 of 46) Model 68045B Serial No. ____________________ Date ___________ Model 68045B (without Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz) Set Power...
  • Page 131 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (6 of 46) Model 68045B Serial No. ____________________ Date ___________ Model 68045B (with Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz) Set Power...
  • Page 132 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (7 of 46) Model 68045B w/Option 15A Serial No. ____________________ Date ___________ Model 68045B with Option 15A High Power (without Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz)
  • Page 133 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (8 of 46) Model 68045B w/Option 15A Serial No. ____________________ Date ___________ Model 68045B with Option 15A High Power (with Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz)
  • Page 134 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (9 of 46) Model 68047B Serial No. ____________________ Date ___________ Model 68047B (without Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz) Set Power...
  • Page 135 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (10 of 46) Model 68047B Serial No. ____________________ Date ___________ Model 68047B (with Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz) Set Power...
  • Page 136 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (11 of 46) Model 68047B w/Option 15A Serial No. ____________________ Date ___________ Model 68047B with Option 15A High Power (without Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz)
  • Page 137 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (12 of 46) Model 68047B w/Option 15A Serial No. ____________________ Date ___________ Model 68047B with Option 15A High Power (with Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz)
  • Page 138 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (13 of 46) Model 68053B Serial No. ____________________ Date ___________ Model 68053B (without Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 22.0 GHz) Set Power...
  • Page 139 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (14 of 46) Model 68053B Serial No. ____________________ Date ___________ Model 68053B (with Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 22.0 GHz) Set Power...
  • Page 140 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (15 of 46) Model 68053B w/Option 15A Serial No. ____________________ Date ___________ Model 68053B with Option 15A High Power (without Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz)
  • Page 141 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (16 of 46) Model 68053B w/Option 15A Serial No. ____________________ Date ___________ Model 68053B with Option 15A High Power (with Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz)
  • Page 142 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (17 of 46) Model 68055B Serial No. ____________________ Date ___________ Model 68055B (without Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz)
  • Page 143 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (18 of 46) Model 68055B Serial No. ____________________ Date ___________ Model 68055B (with Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz)
  • Page 144 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (19 of 46) Model 68055B w/Option 15A Serial No. ____________________ Date ___________ Model 68055B with Option 15A High Power (without Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy *...
  • Page 145 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (20 of 46) Model 68055B w/Option 15A Serial No. ____________________ Date ___________ Model 68055B with Option 15A High Power (with Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy *...
  • Page 146 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (21 of 46) Model 68059B Serial No. ____________________ Date ___________ Model 68059B (without Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz)
  • Page 147 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (22 of 46) Model 68059B Serial No. ____________________ Date ___________ Model 68059B (with Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz)
  • Page 148 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (23 of 46) Model 68059B w/Option 15A Serial No. ____________________ Date ___________ Model 68059B with Option 15A High Power (without Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy *...
  • Page 149 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (24 of 46) Model 68059B w/Option 15A Serial No. ____________________ Date ___________ Model 68059B with Option 15A High Power (with Option 2A Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy *...
  • Page 150 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (25 of 46) Model 68063B Serial No. ____________________ Date ___________ Model 68063B (without Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz) Set Power...
  • Page 151 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (26 of 46) Model 68063B Serial No. ____________________ Date ___________ Model 68063B (with Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz) Set Power...
  • Page 152 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (27 of 46) Model 68063B w/Option 15A Serial No. ____________________ Date ___________ Model 68063B with Option 15A High Power (without Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz)
  • Page 153 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (28 of 46) Model 68063B w/Option 15A Serial No. ____________________ Date ___________ Model 68063B with Option 15A High Power (with Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz)
  • Page 154 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (29 of 46) Model 68065B Serial No. ____________________ Date ___________ Model 68065B (without Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz)
  • Page 155 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (30 of 46) Model 68065B Serial No. ____________________ Date ___________ Model 68065B (with Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz)
  • Page 156 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (31 of 46) Model 68065B w/Option 15A Serial No. ____________________ Date ___________ Model 68065B with Option 15A High Power (without Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy *...
  • Page 157 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (32 of 46) Model 68065B w/Option 15A Serial No. ____________________ Date ___________ Model 68065B with Option 15A High Power (with Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy *...
  • Page 158 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (33 of 46) Model 68069B Serial No. ____________________ Date ___________ Model 68069B (without Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz)
  • Page 159 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (34 of 46) Model 68069B Serial No. ____________________ Date ___________ Model 68069B (with Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 1.0 GHz) (CW Frequency = 5.0 GHz)
  • Page 160 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (35 of 46) Model 68069B w/Option 15A Serial No. ____________________ Date ___________ Model 68069B with Option 15A High Power (without Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy *...
  • Page 161 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (36 of 46) Model 68069B w/Option 15A Serial No. ____________________ Date ___________ Model 68069B with Option 15A High Power (with Option 2B Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy *...
  • Page 162 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (37 of 46) Model 68075B Serial No. ____________________ Date ___________ Model 68075B (without Option 2C Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz)
  • Page 163 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (38 of 46) Model 68075B Serial No. ____________________ Date ___________ Model 68075B (with Option 2C Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz)
  • Page 164 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (39 of 46) Model 68077B Serial No. ____________________ Date ___________ Model 68077B (without Option 2C Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz)
  • Page 165 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (40 of 46) Model 68077B Serial No. ____________________ Date ___________ Model 68077B (with Option 2C Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz)
  • Page 166 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (41 of 46) Model 68085B Serial No. ____________________ Date ___________ Model 68085B (without Option 2D Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz)
  • Page 167 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (42 of 46) Model 68085B Serial No. ____________________ Date ___________ Model 68085B (with Option 2D Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz)
  • Page 168 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (43 of 46) Model 68087B Serial No. ____________________ Date ___________ Model 68087B (without Option 2D Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz)
  • Page 169 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (44 of 46) Model 68087B Serial No. ____________________ Date ___________ Model 68087B (with Option 2D Step Attenuator) Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz)
  • Page 170 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (45 of 46) Model 68095B Serial No. ____________________ Date ___________ Model 68095B Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz) (CW Frequency = 50.0 GHz)
  • Page 171 OPERATION POWER LEVEL ACCURACY VERIFICATION AND FLATNESS TESTS Table 5-3. Power Level Accuracy and Flatness Test Record (46 of 46) Model 68097B Serial No. ____________________ Date ___________ Model 68097B Power Level Accuracy * Power Level Accuracy * Power Level Accuracy * (CW Frequency = 5.0 GHz) (CW Frequency = 25.0 GHz) (CW Frequency = 50.0 GHz)
  • Page 172 Chapter 6 Operator Maintenance Table of Contents INTRODUCTION ....6-3 ERROR AND WARNING/STATUS MESSAGES . . 6-3 Self-Test Error Messages ....6-3 Normal Operation Error and Warning/Status Messages .

  • Page 173: Introduction

    Chapter 6 Operator Maintenance INTRODUCTION This chapter provides the information necessary for operator mainte- nance of the CW generator. Operator maintenance is limited to trou- bleshooting and repairs that can be made without removing the instru- ment covers. ERROR AND During normal operation, the 680XXB generates error messages to in- WARNING/STATUS dicate internal malfunctions, abnormal signal generator operations, or...
  • Page 174 OPERATOR ERROR AND WARNING/ MAINTENANCE STATUS MESSAGES WARNING Self-test error messages normally indicate the failure of an internal component or assembly of the CW generator. There are no operator serviceable components inside. Refer servic- ing of the instrument to qualified service technicians. To prevent the risk of electrical shock or damage to precision components, do not remove the equipment covers.
  • Page 175 OPERATOR ERROR AND WARNING/ MAINTENANCE STATUS MESSAGES Table 6-1. Self-Test Error Messages (2 of 4) Error Message Description/Remarks Error 112 Indicates the coarse loop oscillator is not phase-locked. The 680XXB is still Coarse Loop Osc Failed operable but the accuracy and stability of the frequency outputs are greatly reduced.
  • Page 176 OPERATOR ERROR AND WARNING/ MAINTENANCE STATUS MESSAGES Table 6-1. Self-Test Error Messages (3 of 4) Error Message Description/Remarks Error 127 Indicates a failure of the level detector input circuitry on the A10 PCB. Use caution Detector Input Circuit and always determine the output power level when operating the 680XXB in this Failed condition.
  • Page 177 OPERATOR ERROR AND WARNING/ MAINTENANCE STATUS MESSAGES Table 6-1. Self-Test Error Messages (4 of 4) Error Message Description/Remarks Error 140 Indicates a failure in the 25 - 32 GHz switched doubler filter path within the SDM. 25 – 32 GHz SDM Section Failed The 680XXB is still operable but it will not produce an RF output in the 25 - 32 GHz frequency range.
  • Page 178 OPERATOR ERROR AND WARNING/ MAINTENANCE STATUS MESSAGES Normal When an abnormal condition is detected during op- Operation eration, the 680XXB displays an error message to in- Error and dicate that the output is abnormal or that a signal Warning/ input or data entry is invalid. It also displays warn- Status ing messages to alert the operator to conditions that Messages...
  • Page 179 OPERATOR ERROR AND WARNING/ MAINTENANCE STATUS MESSAGES Table 6-3. Possible Warning/Status Messages during Normal Operation Warning/Status Description Message This warning message indicates that the 100 MHz OVN COLD Crystal oven (or the 10 MHz Crystal oven if Option 16 is installed) has not reached operating temperature.

  • Page 180: Troubleshooting

    OPERATOR MAINTENANCE TROUBLESHOOTING TROUBLESHOOTING Table 6-4 provides procedures for troubleshooting common malfunc- tions encountered during operation of the CW generator. Included are procedures for troubleshooting faults that do not produce error mes- sages, such as, failure to power up and unexpected shutdown. Table 6-4.
  • Page 181 OPERATOR MAINTENANCE TROUBLESHOOTING Table 6-4. Troubleshooting (2 of 3) CW Generator Quits During Operation (OPERATE light remains on) Trouble Description: The CW generator operates for some time, then shuts down (OPERATE light remains on). After a short period, the CW generator resumes normal operation.
  • Page 182 OPERATOR MAINTENANCE TROUBLESHOOTING Table 6-4. Troubleshooting (3 of 3) UNLEVELED is Displayed Trouble Description: This message is displayed to indicate that the RF output is unleveled. Step 1 Check that the output power does not exceed the specified leveled-power rating and that the RF OUTPUT connector is terminated into a 50Ω...

  • Page 183: Routine Maintenance

    OPERATOR ROUTINE MAINTENANCE MAINTENANCE ROUTINE MAINTENANCE Routine maintenance that can be performed by the operator consists of cleaning the fan filter, cleaning the data display, and replacing a defec- tive line fuse. Cleaning the The CW generator must always receive adequate Fan Filter ventilation.

  • Page 184: Replacing The Line Fuse

    OPERATOR ROUTINE MAINTENANCE MAINTENANCE Replacing The value of the line fuse used in the 680XXB is de- the Line Fuse termined by the line voltage selection—a 5A line fuse for 110 Vac line voltage; a 2.5A line fuse for 220 Vac line voltage. These line fuse values are printed on the rear panel next to the fuse holder.
  • Page 185 OPERATOR ROUTINE MAINTENANCE MAINTENANCE Fuse Fuse Holder Figure 6-2. Replacing the Line Fuse 680XXB OM 6-15/6-16...
  • Page 186 Chapter 7 Use With Other Instruments Table of Contents INTRODUCTION ....7-3 MASTER-SLAVE OPERATION ... 7-4 Connecting the 68XXXBs .

  • Page 187: Introduction

    It contains the following: Instructions for interconnecting and operating any two 68XXXBs in a master-slave configuration. Instructions for connecting the 680XXB to a WILTRON Model 562 Scalar Network Analyzer so that it can be used as a signal source for the analyzer.

  • Page 188: Master-Slave Operation

    “MASTER” to the rear panel AUX gether for Master-Slave operations, I/O connector on the Master 68XXXB. always use a WILTRON Master- Connect the AUX I/O cable labeled Slave interface cable set, Part No. “SLAVE” to the rear panel AUX I/O con- ND36329.

  • Page 189: Initiating Master-Slave Operation

    USE WITH MASTER-SLAVE OTHER INSTRUMENTS OPERATION Step 4 Connect the Master 68XXXB RF OUT- PUT and the Slave 68XXXB RF OUTPUT to the appropriate connections on the DUT. Initiating The following paragraphs describe how to set up Master-Slave both 68XXXBs to perform master-slave operations. Operation Use the CW Frequency Mode menu map (Chapter 4, Figure 4-2) to follow the menu sequences.
  • Page 190 USE WITH MASTER-SLAVE OTHER INSTRUMENTS OPERATION NOTE Upon reset, the slave frequencies (F0 - F9 and M0 - M9) return to the default values shown here. This menu lets you edit the listed frequencies for the Slave 68XXXB. Use the cursor control key to select a frequency pa- rameter from the list, then press Edit to edit its value.

  • Page 191: Master-Slave Operation In Vna Mode

    USE WITH MASTER-SLAVE OTHER INSTRUMENTS OPERATION pad and appropriate termination key. When you have finished setting the open parameter, close it by pressing its menu soft-key or by making another menu selection. Press Enable to begin master-slave operation. Press CW to return to the CW menu. Master-Slave During master-slave operation, the Slave unit is in Operation...
  • Page 192 USE WITH MASTER-SLAVE OTHER INSTRUMENTS OPERATION Press VNA Menu to go to the VNA Menu display (below). This menu lets you set the frequency offset and out- put power level for the Slave 68XXXB in the VNA mode. Press VNA Offset to open the slave frequency off- set parameter.

  • Page 193: Terminating Master-Slave Operation

    USE WITH MASTER-SLAVE OTHER INSTRUMENTS OPERATION Terminating The following describes how to terminate master- Master-Slave slave operation and return the Slave 68XXXB to lo- Operation cal (front panel) control. On the Master 68XXXB, select CW mode. At the CW Menu, press Master Slave to go to the Master Slave Menu display.

  • Page 194: Connecting The 680Xxb To The 562

    USE WITH A 562 SCALAR OTHER INSTRUMENTS NETWORK ANALYZER USE WITH A 562 The 680XXB is directly compatible with the WILTRON Model 562 Sca- SCALAR NETWORK lar Network Analyzer (SNA). The following paragraphs provide in- ANALYZER structions for connecting the CW generator to the 562 SNA so that is can be used as a signal source for the analyzer.

  • Page 195: Use With A 360B Vna

    USE WITH A 360B VECTOR OTHER INSTRUMENTS NETWORK ANALYZER USE WITH A 360B The 680XXB CW generator is compatible with the WILTRON Model VECTOR NETWORK 360B Vector Network Analyzer (VNA). The following paragraphs pro- ANALYZER vide instructions for connecting the 680XXB to the 360B VNA so that it can be used as a signal source for the analyzer operating in the tracking receiver mode.

  • Page 196: Configuring The 680Xxb

    USE WITH USE WITH A 360B VECTOR OTHER INSTRUMENTS NETWORK ANALYZER end of the cable to the 360B rear panel SOURCE CONTROL SYSTEM BUS con- nector. Step 2 Connect one end of a coaxial cable to the 680XXB rear panel 10 MHz REF IN con- nector.

  • Page 197: Initiating 360B Tracking Mode

    USE WITH USE WITH A 360B VECTOR OTHER INSTRUMENTS NETWORK ANALYZER The new GPIB address will appear on the display. Step 3 Press Line Term to select the correct GPIB data delimiter. The CW generator is now configured for 360B tracking receiver mode operation. Initiating Turn on the 360B VNA and configure it for tracking 360B Track-...
  • Page 198 Appendix A Rear Panel Connectors INTRODUCTION This appendix provides descriptions for the rear panel connectors on a typical Series 680XXB Synthesized CW Generator. REAR PANEL Figure A-1 provides a illustration of the rear panel and describes the CONNECTORS rear panel connectors. CONNECTOR PINOUT Figures A-2 and A-3 provide pinout diagrams and descriptions for the DIAGRAMS...
  • Page 199 (master-slave operation) or with other WIL- width. In the CW mode, provides a voltage TRON instruments such as the WILTRON 562 between 0V and 10V proportional to the full Scalar Network Analyzer. A pinout diagram for frequency range of the instrument.
  • Page 200 REAR PANEL CONNECTORS 10 MHz REF OUT: Provides a 0.5 Vp-p, AC SERIAL I/O: Provides access to two RS-232 coupled, 10 MHz signal derived from the inter- terminal ports to support service and calibra- nal frequency standard of the CW generator. tion functions and master-slave operations.
  • Page 201 REAR PANEL CONNECTOR CONNECTORS PINOUT DIAGRAMS AUX I/O SIGNAL NAME SIGNAL DESCRIPTION HORIZ OUTPUT Horizontal Sweep Output: Provides a 0V at beginning and +10V at end of sweep for all sweep modes, regardless of sweep width. In the CW mode, the voltage is proportional to frequency between 0V at low end and +10V at the high end of range.
  • Page 202 REAR PANEL CONNECTOR CONNECTORS PINOUT DIAGRAMS SIGNAL NAME SIGNAL DESCRIPTION V/GHz V/GHz Output: Provides a reference voltage relative to the RF output frequency (1.0 V/GHz for Models 68037B, 68045B, and 68047B; 0.5 V/GHz for Models 68053B, 68055B, 68059B, 68063B, 68065B, and 68069B; 0.25 V/GHz for Models 68075B, 68077B, 68085B, 68087B, 68095B, and 68097B).
  • Page 203 REAR PANEL CONNECTOR CONNECTORS PINOUT DIAGRAMS IEEE-488 GPIB 13 14 15 16 17 18 19 20 21 22 23 24 9 10 11 12 SIGNAL NAME SIGNAL DESCRIPTION Data Input/Output: Bits are HIGH when the data is logical 0 and LOW when the DIO 1 thru DIO 4 data is logical 1.
  • Page 204 Appendix B Performance Specifications 10 MHz Reference Output: 0.5 Vp-p into 50Ω,AC coupled. MODEL SUMMARY Rear panel BNC; 50Ω impedance. Model Frequency Range Switching Time (typical maximum): <40 ms to be within 1 kHz of final frequency. 68037B 2.0 to 20.0 GHz 68045B 0.5 to 20.0 GHz PHASE-LOCKED STEP SWEEP MODE...
  • Page 205 PERFORMANCE SPECIFICATIONS SWEEP TRIGGERING SINGLE-SIDEBAND PHASE NOISE Sweep triggering is provided for Step Frequency Sweep and (dBc/Hz) CW Power Sweep. Offset From Carrier Auto: Triggers sweep automatically. Frequency External: Triggers a sweep on the low to high transition of (GHz) 100 Hz 1 kHz 10 kHz...
  • Page 206 PERFORMANCE SPECIFICATIONS RESIDUAL FM RF OUTPUT (50 Hz - 15 kHz BW) Power level specifications apply at 25 ° ± 10 ° C. MAXIMUM LEVELED OUTPUT POWER Frequency Range Residual FM (GHz) (Hz RMS) Output Power Frequency Output 0.5 to ≤1.0 Model with Step Range...
  • Page 207 PERFORMANCE SPECIFICATIONS MAXIMUM LEVELED OUTPUT POWER (Continued) UNLEVELED OUTPUT POWER RANGE (typical) Without an Attenuator: >40 dB below max power. Output Power With an Attenuator: >130 dB below max power. Frequency Output Model with Step Range Power Number Attenuator POWER LEVEL SWITCHING TIME (to within specified (GHz) (dBm) (dBm)
  • Page 208 Emulations: The instrument responds to the published Step Dwell Time: Variable from 1 ms to 99 seconds. If the GPIB commands and responses of the Wiltron Models 6600, sweep crosses a step attenuator setting, there will be a 6700, and 6XX00-series signal sources. When emulating...
  • Page 209 PERFORMANCE SPECIFICATIONS GENERAL Warm Up Time (Standard Time Base): From Standby: 30 minutes. Stored Setups: Stores front panel settings and nine addi- –8 From Cold Start (0°C): 120 hours to achieve <2 x 10 tional front-panel setups in a non-volatile RAM. A system per day frequency stability.
  • Page 210 PERFORMANCE SPECIFICATIONS INPUTS and OUTPUTS SEQ SYNC OUT (Sequential Sync Output): Provides a +5V signal during retrace, at bandswitching points, and dur- ing each frequency step in step sweep mode, –5V during Input/Output Connectors markers, and –10V during the selected marker. DWELL IN: Accepts an external TTL low-level signal to Nomenclature Type...
  • Page 211 Option 11, 0.1 Hz Frequency Resolution: Provides fre- quency resolution of 0.1 Hz. Option 14, WILTRON 360B VNA Compatibility: Modifies rack mounting hardware to mate unit in a WILTRON 360B VNA console. Option 15A, High Power Output: Adds high-power RF components to the instrument in the 2-26.5 GHz frequency...

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