Rohde & Schwarz EK 895 Operator's Manual
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Rohde & Schwarz EK 895 Operator's Manual

Vlf - hf receivers
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Operator Manual
VLF > HF RECEIVERS
EK 895
6057.8996.07
Software Version 3.xx
Radio Communications Systems
Division
EK 896
6038.2509.17
Software Version 3.xx
6075.6991.82.01 > 1

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  • Page 1 Radio Communications Systems Division Operator Manual VLF > HF RECEIVERS EK 895 EK 896 6057.8996.07 6038.2509.17 Software Version 3.xx Software Version 3.xx 6075.6991.82.01 > 1...
  • Page 2 ” Copying of this document as well as any other utilization and communication of its content are only admissible with the permission of the originator or other authorized persons. Any disregard will be prosecuted and is subject to restitution (UrhG, UWG, BGB). For the case a patent is issued or the design is officially registered all rights are reserved.
  • Page 3 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual First Edition and Revisions First edition..01..March 1996 LIST OF EFFECTIVE PAGES Change index / Change index / Page No.
  • Page 5 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual List of Abbreviations A = address FIB = filter bandwiths (IF) A+D = automatic and digital gain control FM = frequency modulation, F3E A+M = automatic and manual gain control FREQ = frequency...
  • Page 6 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual ME> = memory (activating the buffer contents) SA = signal BYPASS MEM = memory manipulation SCA = scanning commands MGC = manual gain control SE = switching digital selection on or off...
  • Page 7 Purpose of the Manual This Manual provides all information the operator needs for data link operation with VLF>HF Re> ceivers EK 895 and EK 896. All functions and commands marked with a crossreference to the User Manual 6045.6712.12.xx are possible in data link operation; however, they are not essential for the actual data link operation.
  • Page 9 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Definitions In the BIT (built>in test) it is checked whether all modules of the basic unit are installed and operative.
  • Page 11 VLF > HF RECEIVERS EK 895 EK 896 Operation Control Unit 'LOCAL' (EK 895) = Option 'Control Unit GB 890' or Control Unit (EK 896), Control Unit 'REMOTE' (EK 895), Control and Display Elements Remote Control Operating Modes, Basic Settings, Special Functions, System Functions, List of Commands 6075.6991.82.01 >...

  • Page 13: Table Of Contents

    List of Contents 1. Operation Page Control Unit 2 ∫LOCAL∫ (EK 895, = Option 'Control Unit GB 890') or Control Unit (EK 896) ..1.1 1.1.1 General ..........1.1 1.1.2...
  • Page 14 Control and Display Elements of Control Unit 1 ∫REMOTE∫(EK 895) ......1.37 6075.6991.82.01...
  • Page 15 (Control Unit 1) ........1.43 Structure of Software for VLF>HF Receiver EK 895 ..1.45 Structure of Software for VLF>HF Receiver EK 896 .

  • Page 17: Control Unit 2 ∫Local∫ (Ek 895, = Option 'Control Unit Gb 890') Or Control Unit (Ek 896)

    General Operation Control Unit 2 ∫LOCAL∫ (EK 895, = Option 'Control Unit GB 890') or Control Unit (EK 896) (see Fig. 1.1 for EK 896 or Fig. 1.2 for EK 895) 1.1.1 General Note: Entries outside the permitted entry range will not be accepted.
  • Page 18 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual General If the LED assigned to key FRQ is illuminated, Note: the stepwidth of the tuning knob can be al> The individual functions are called up via the tered by means of the cursor control keys (Æ...

  • Page 19: Display

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Display 1.1.2 Display In all operating modes the following receiver Except for entries, e.g. of a frequency, the fol> settings are continuously displayed: lowing receiver settings are additionally in>...

  • Page 20: Operating Modes

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Operating Modes 1.1.3 Operating Modes 1.1.3.2 CHANNEL The receiver can be operated in the following In the operating mode CHANNEL there is a two operating modes: channel set.

  • Page 21: Software

    E K 8 9 5 / E K 8 9 6 Operator Manual Software Software (see Fig. 1.4 for EK 895 or Fig. 1.5 for EK!896) The software offers various individual menus f Master / slave menu f CHM: which are arranged on different levels (1 to 6).
  • Page 22 E K 8 9 5 / E K 8 9 6 Operator Manual Software On the fifth level there are the following On the sixth level there are the following menus: menus: EK 895 EK 896 EK 895 EK 896 f LOC / fixed>channel f CHM: f CHM: >...

  • Page 23: Switching On

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Switching On and Off 1.1.5 Switching On (see also User Manual 6045.6712.12.xx) Actuate switch POWER.

  • Page 24: Frequency

    FRQ. Upon actuation of key FRQ it appears the following display: FREQUENCY In order to reduce the stepwidth (f 0.001) actuate key Æ (EK 895) or CURSOR Æ (EK 896). 1.1.7.1 Entering a Frequency In order to activate the freely programmed If the LED FRQ is not illuminated, actuate key stepwidth (see 1.1.7.4) actuate key Æ...
  • Page 25 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Frequency For EK 895: For EK 896: Frequency Entry CURSOR FREQUENCY Freely program>...

  • Page 26: Entering The Tuning Knob Stepwidth

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Frequency 1.1.7.4 Entering the Tuning Knob 1.1.7.5 Enabling the Tuning Knob Stepwidth Actuate softkeys MORE and SPEC (EK!895) or Upon actuation of softkeys MORE and SPEC key MORE (EK 896) as well as softkeys KNOB...
  • Page 27 MOD GAIN BW SCA MORE MOD CHM MEM SCA SYS > Main Menu 2 M / S SYS SPEC CHM MEM 3rd LEVEL (EK 895) Special Functions Menu 2nd LEVEL (EK 896) KNOB LEV REM DEF Tuning Knob Menu STEP...

  • Page 28: Modulation Mode

    Modulation Mode 1.1.8 Modulation Mode The modulation mode can be selected by soft> For EK 895: key actuation in the modulation menu. The Upon actuation of softkeys MOD, MORE, currently effective modulation mode is indi> MORE, MORE and MORE, the modulation cated in the modulation mode field.
  • Page 29 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Modulation Mode For EK 895: For EK 896: Main Menu Main Menu...

  • Page 30: Channel

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Channel 1.1.9 Channel If the LED assigned to the key CH is illuminated, Enter the new channel number via the numeric each channel stored and not cleared (inhibited) keypad.
  • Page 31 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Channel Channel Entry CHANNEL Tuning knob enabled? (see 1.1.7.5) 6075.6991.82.01 > 1.15 >...

  • Page 32: Separate Functions 1

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Separate Functions 1 1.1.10 Separate Functions 1 By actuating the key ENT the separate func> It is of no use trying to activate this func>...

  • Page 33: Separate Functions 2 (Ek 896)

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Separate Functions 2 (EK 896) 1.1.11 Separate Functions 2 (EK 896) By actuating key MENU 1 the separate func> 1.1.11.2 Calling up the Buffer Contents tions menu 2 is called up.

  • Page 34: Loudspeaker (Ek 896)

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Loudspeaker 1.1.12 Loudspeaker (EK 896) 1.1.12.1 Switching the Loudspeaker On Actuate switch as shown by the figure below. 1.1.12.2 Adjusting the Volume When the toggle switch is in the upper position (see 1.1.12.1), it is possible to adjust the volume...

  • Page 35: Control Unit 1 ∫Remote∫ (Ek 895)

    Its control is carried out with the aid of a computer with control program, Control Unit GB 899 or another receiver (EK 895 with control unit 2 'LOCAL' or Control Unit GB 890, EK 896). In the event that there is no control program for the computer available or such a program is to be established, the remote control commands in compliance with Section 2 of this Operator Manual and Appendix A3 of the User Manual (6045.6712.12.xx) are required.

  • Page 36: Switching Off

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 5 Operator Manual Switching On and Off Æ After the BIT none of the yellow LEDs is allowed to be illuminated. HF>TEIL RF UNIT ZF / NF PROZESSOR...

  • Page 37: Or Control Unit (Ek 896)

    Control and Display Elements Control and Display Elements of Control Unit 2 ∫LOCAL∫ (EK 895, = Option 'Control Unit GB 890') or Control Unit (EK 896) (see Fig. 1.1 for EK 896 or Fig. 1.2 for EK 895) Control or display Design Description...
  • Page 38 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element Modulation In the modulation mode field the cur> MODULATION mode field rently effective modulation mode (e.g.
  • Page 39 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element >>> continued When the channel number (e.g 483) is flashing, the function CHM (channel edit>...
  • Page 40 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element The cursor indicates which of the 7> segment display elements the tuning knob (34) directly acts upon.
  • Page 41 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element Miniature loud> Whether the loudspeaker emits an AF sig>...
  • Page 42 GAIN SET instead of MORE. Control type menu For modulation mode AFSK only. Modulation mode menu VAR OPT For EK 896 and EK 895 with option Tuning knob menu EK 895S7 only STEP Display for EK 896 6075.6991.82.01 > 1.26 >...
  • Page 43 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element >>>continued Level line menu LOC / REM menu Default value menu LOC / fixed>channel menu...
  • Page 44 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element 1>way toggle If the toggle switch is in the upper switch position, the AF signal is fed from the out>...
  • Page 45 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element It is of no use actuating these keys in data FAST link operation...
  • Page 46 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element Pushbutton with By actuation of key ENT the numerical protective cap displays in the display field (36) are stored.
  • Page 47 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element Entries via the numeric keypad are indicated above the flashing cursor (35) in the display field (36).
  • Page 48 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element Pushbutton with It is of no use actuating this key in data protective cap link...
  • Page 49 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element Pushbutton with After actuating key FRQ in the display protective cap field (36) the indication...
  • Page 50 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element >>>continued In the case of a failure the defective or missing module(s) is (are) indicated in the display field (36).
  • Page 51 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element Display field The display field shows the operator, consisting of 30 which quantity can be entered via the...
  • Page 52 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element >>>continued IF / AF MISSING MORE PROC UNIT NOGO MORE IF CONV NOGO...

  • Page 53: Remote∫(Ek 895)

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control and Display Elements of Control Unit 1 ∫REMOTE∫ (EK 895) (see Fig. 1.3) Control or display Design Description...
  • Page 54 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Control or display Design Description element Upon actuation of the power switch (1) the LED SYNTHESIZER is illuminated SYNTHESIZER yellow LED...
  • Page 55 Legend for Fig. 1.1 (for Data Link Operation) Designation Designation Cursor control keys Modulation mode keys (do not actuate!!) Status line Control type keys (no function) Modulation mode field BW keys (no function) Bargraph HF control (no function) Control type field (no control type, Key PUT (no function) only control time, display: FAST) Channel field...
  • Page 56 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Fig. 1.1 Control and Display Elements of VLF>HF Receiver EK 896 6075.6991.82.01 >...
  • Page 57 Legend for Fig. 1.2 (for Data Link Operation) Designation Designation Cursor control keys with EK 896 only Status line with EK 896 only Modulation mode field with EK 896 only Bargraph HF control (no function) Control type field (no control type, with EK 896 only only control time, display: FAST) Channel field...
  • Page 58 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Fig. 1.2 Control and Display Elements of VLF>HF Receiver EK 895 6075.6991.82.01 > 1.41 / 1.42 >...
  • Page 59 Legend for Fig. 1.3 Designation Switch POWER LED OPTION 2 LED OPTION 1 LED SYNTHESIZER LED IF / AF PROCESSOR LED RF UNIT...
  • Page 60 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Control and Display Elements Fig. 1.3 Control and Display Elements of VLF>HF Receiver EK 895 (Control Unit 1) 6075.6991.82.01 > 1.43 / 1.44 >...

  • Page 61: Structure Of Software For Vlf>Hf Receiver Ek 895

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Software Structure Fig. 1.4 Structure of Software for VLF>HF Receiver EK 895 (page 1 of 2) 6075.6991.82.01 > 1.45 / 1.46 >...
  • Page 62 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Software Structure Fig. 1.4 Structure of Software for VLF>HF Receiver EK 895 (page 2 of 2) 6075.6991.82.01 > 1.47 / 1.48 >...
  • Page 63 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Software Structure Fig. 1.5 Structure of Software for VLF>HF Receiver EK 896 (page 1 of 2) 6075.6991.82.01 >...
  • Page 64 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Software Structure Fig. 1.5 Structure of Software for VLF>HF Receiver EK 896 (page 2 of 2) 6075.6991.82.01 >...
  • Page 65 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual List of Contents 2. Remote Control Page General ........2.1 Operating Modes .

  • Page 66: General

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual General Remote Control Note: In the text which follows only the data link>relevant commands are described. All other com> mands are dealt with in the User Manual (6045.6712.12.xx).

  • Page 67: Operating Modes

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Operating Modes Operating Modes The receiver can be operated in the following The possible system functions are characterized two operating modes: by the following codes:...

  • Page 68: Basic Settings

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Basic Settings Basic Settings In the MANUAL mode the following values can be entered or altered: F (frequency) I (modulation mode) 2.3.1...

  • Page 69: Programming Examples

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Basic Settings 2.3.3 Programming Examples Example 1: The unaddressed VLF>HF receiver is to be set as follows: Frequency: 801 kHz = F801000 Modulation mode: L USB = I15 At the same time these settings are to be confirmed.

  • Page 70: Special Functions

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Special Functions Special Functions The following special functions are possible: Inhibiting or enabling the level line Inquiry of level line status Initiation of BIT and/or inquiry of BIT status Inquiry of CM status...

  • Page 71: Switching The Preamplifier On Or Off

    V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual Special Functions 2.4.3 Switching the Preamplifier On or Off Command syntax: Example 1: Inquiry of preamplifier status Code: PA Command = rAxxPA??

  • Page 72: System Functions

    Inquiry of options Reply Command = rAxxOP?? Æ Reply = rAxxOP1,11? Parameter: ....In VLF>HF Receiver EK 895 the option 'Control = no option Unit GB 890' is installed. = Control Unit GB 890 = BCD Interface GC 890 = Preselector FK 890H1 11 =VLF>HF Receiver EK 895...
  • Page 73 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual List of Commands List of Commands Output Code Function (entry in) Entry Remark (requested with ?) Address...
  • Page 74 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual List of Commands Output Code Function (entry in) Entry Remark (requested with ?) FIB1 see A3.8.3 1) 24= 2400 Hz...
  • Page 75 (requested with ?) see 2.5.1 Inquire options 8= BCD Interface GC 890 9= Preselector FK 890H1 11= VLF>HF Re> ceiver EK 895 12= VLF>HF Re> ceiver EK 896 13= IF Converter (100 kHz) 14= IF Converter UX 895 (455 kHz) 15= EK 895S7 (quasi>...
  • Page 76 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual List of Commands Output Code Function (entry in) Entry Remark (requested with ?) Signal BYPASS 0 to 2 0= high (OFF)
  • Page 77 V L F > H F R E C E I V E R S E K 8 9 5 / E K 8 9 6 Operator Manual List of Commands 6075.6991.82.01 > 2.11 / 2.12 >...

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