Wiltron 680 B Series Operation Manual Download

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Figure 1-1.

Series 680XXB Synthesized CW Generator

Summary of Contents for 680 B Series

Page 2: ...oes 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 No o...

Page 3: ...technical changes to the manual The black bar or bars in the replacement page margins shows the area in which the changes were made CHANGE 1 December 1996 1 Declaration of Conformity Page Replace with...

Page 4: ...s listed below The changes are listed in numerical order by page number Effectivity is all CW generator serial numbers 2 The replacement pages provided are for technical changes to the manual The blac...

Page 5: ......

Page 6: ...formed properly Do not proceed beyond a WARNING notice until the indicated condi tions are fully understood and met CAUTION CAUTION indicates a hazard It calls attention to a procedure which if not pe...

Page 7: ...ectrical shock or damage to precision components do not remove the equipment covers WARNING For Safety Before changing the fuse always remove the power cord from the power outlet There is the risk of...

Page 8: ...ly following the tab Chapter 4 Local Operation Menu Maps Chapter 4 provides menu maps that support the local front panel operating instructions found in Chapter 3 It includes menu maps for all of the...

Page 9: ...escriptions for the AUX I O and IEEE 488 GPIB connectors Appendix B Performance Specifications Appendix B lists the performance specifications for the Series 680XXB Synthesized CW Generator Supplement...

Page 10: ...DESCRIPTION 1 3 1 4 IDENTIFICATION NUMBER 1 6 1 5 RELATED MANUALS 1 6 GPIB Programming Manual 1 6 SCPI Programming Manual 1 6 Maintenance Manual 1 6 1 6 OPTIONS 1 7 1 7 PERFORMANCE SPECIFICATIONS 1 8...

Page 11: ...Figure 1 1 Series 680XXB Synthesized CW Generator...

Page 12: ...nuals options and performance specifications A listing of recommended test equipment is also provided 1 3 DESCRIPTION The Series 680XXB Synthesized CW Generators are microprocessor based synthesized s...

Page 13: ...9B 0 01 2 0 GHz 2 0 20 0 GHz 20 0 40 0 GHz 13 0 dBm 9 0 dBm 6 0 dBm 11 0 dBm 7 0 dBm 3 0 dBm 68075B 0 5 2 2 GHz 2 2 20 0 GHz 20 0 40 0 GHz 40 0 50 0 GHz 11 0 dBm 10 0 dBm 2 5 dBm 2 5 dBm 10 0 dBm 8 5...

Page 14: ...13 0 dBm 10 0 dBm 11 0 dBm 11 0 dBm 7 5 dBm 68059B 0 01 2 0 GHz 2 0 20 0 GHz 20 0 26 5 GHz 13 0 dBm 13 0 dBm 10 0 dBm 11 0 dBm 11 0 dBm 7 5 dBm 68063B 2 0 20 0 GHz 20 0 40 0 GHz 13 0 dBm 6 0 dBm 11 0...

Page 15: ...e GPIB and bus data transfer and control functions a complete listing and description of all 680XXB GPIB Product Specific commands and several programming examples The WILTRON part number for the PM i...

Page 16: ...0 dB Step Attenuator Adds a 10 dB per step at tenuator with a 90 dB range for models having a high end fre quency of 60 GHz Output power is selected directly in dBm on the front panel or via GPIB Rate...

Page 17: ...External Mixer Range 0 01 to 65 GHz Input Z 50 Resolution 1 Hz Other External Time Base Input EIP Microwave Inc Models 538B 548B or 578B with Cable Kit Option 590 and External Mixer Option 91 26 5 to...

Page 18: ...ent 2 6 2 4 GPIB SETUP AND INTERCONNECTION 2 7 Interface Connector 2 7 Cable Length Restrictions 2 7 GPIB Interconnection 2 7 Setting the GPIB Address 2 7 Selecting the Line Terminator 2 9 Selecting t...

Page 19: ...p ment have been checked against the packing list and the CW generator has been checked for mechanical and electrical operation If the shipment is incomplete or if the CW generator is damaged me chani...

Page 20: ...r rect for the line voltage available change it to the correct setting Whenever the selector setting is changed the line fuse must be changed to the correct value for the line voltage selected Line fu...

Page 21: ...perating temperature On the front panel press LINE to switch the 680XXB from OPERATE green LED on to STANDBY orange LED on NOTE During standby operation the fan runs continuously PREPARATION INSTALLAT...

Page 22: ...within the following en vironmental limits Temperature 0 C to 50 C 32 F to 122 F Humidity 5 to 95 relative at 40 C Altitude up to 4600 meters approximately 15 000 feet Cooling Internal cooling is prov...

Page 23: ...ve cable length between all instruments is too long the data and control lines cannot be driven properly and the system may fail to perform Cable length restrictions are as follows No more than 15 ins...

Page 24: ...is displayed Press the menu soft key GPIB Address to change the current GPIB address of the CW generator En ter a new address using the cursor control key or the data entry keypad and the terminator...

Page 25: ...nerators can be remotely operated via the GPIB using one of two ex ternal interface languages Native or SCPI Option 19 The Native interface language uses a set of 680XXB GPIB Product Specific commands...

Page 26: ...as follows Step 1 Using a Phillips screwdriver remove the screws and the front handle assemblies from the instrument For instruments not having front handles remove the screws and the front top and bo...

Page 27: ...etric tapped holes in the side of the instrument Step 8 Insert the two SAE threaded screws re moved from the feet through the 90 tabs on the rear of the slide assembly and into the rear panel of the i...

Page 28: ...tabs on the rear of the slide assembly and into the rear panel of the instrument Step 14 Using the Phillips screwdriver tighten all screws holding the right side slide assem bly to the instrument cha...

Page 29: ...two options is possible instructions for packaging and shipment are given below Use a Suitable Container Obtain a corrugated cardboard carton with a 275 pound test strength This carton should have ins...

Page 30: ...rf Germany Telephone 0211 67 97 60 FAX 0211 68 33 53 INDIA MEERA AGENCIES P LTD A 23 Hauz Khas New Delhi 110 016 Telephone 011 685 3959 FAX 011 686 6720 ISRAEL TECH CENT LTD Haarad St No 7 Ramat Haaha...

Page 31: ...A 3 8 Menu Display Format 3 9 Menu Keys 3 10 3 4 DATA ENTRY AREA 3 12 3 5 INSTRUMENT START UP 3 14 Powering Up the 680XXB 3 14 Start Up Display 3 14 Standby Operation 3 14 Self Testing the 680XXB 3 15...

Page 32: ...Mode 3 34 3 9 FIXED POWER LEVEL OPERATION 3 37 Selecting Fixed Power Level Mode 3 37 Selecting a Power Level 3 37 Level Offset 3 40 3 10 POWER LEVEL SWEEP OPERATION 3 41 Selecting CW Power Sweep Mode...

Page 33: ...Rear Panel 3 63 Configuring the RF 3 64 Configuring the GPIB 3 65 Setting Increment Sizes 3 67 3 13 SAVING RECALLING INSTRUMENT SETUPS 3 68 Saving Setups 3 68 Recalling Setups 3 68 Erasing Stored Setu...

Page 34: ...panel data display area and data entry area that identify and describe all front panel con trols inputs and outputs An annotated diagram of the menu display format showing where the current frequency...

Page 35: ...display provides information about the cur rent status of the 680XXB in a menu display for mat This information includes the operating mode of the instrument and the value of the active fre quency an...

Page 36: ...is indi cated by a red LED OUTPUT ON by a yellow LED Connectors The front panel has both an input connector and an output connector External ALC Connector The external ALC connector provides for level...

Page 37: ...igure 3 2 shows the format of the menu display and identifies the display elements It also shows the placement of the menu keys in relation to the display The paragraphs that follow provide descrip ti...

Page 38: ...de the type of sweep trigger Auto External or Single appears on the right side of the bar Parameter Areas The parameter areas show the frequency and power level information for the current 680XXB setu...

Page 39: ...cription of each main menu follows CW SWEEP SELECT This menu lets you select between CW Step and Manual Sweep frequency modes FREQUENCY CONTROL In CW frequency mode this menu lets you select the CW fr...

Page 40: ...n menu key is pressed When the SYSTEM key is pressed the System menu is displayed The System menu and its sub menus do not contain a main menu key cursor Menu Soft Keys As shown on the left five menu...

Page 41: ...used to increase or de crease the value of the parameter The unit size of the increase or decrease that occurs each time the or pad is pressed is determined by the cursor posi tion In addition when ed...

Page 42: ...he param eter s value increases or decreases by the set amount KEYPAD The numeric keypad provides for entering fre quency power level time and number of steps pa rameters and GPIB address values The k...

Page 43: ...s displayed until the CW generator has loaded all programs Upon completion of power up the 680XXB returns to the exact configuration it was in when last turned off Standby Operation Whenever the CW ge...

Page 44: ...setting to Default Parameters You can reset the 680XXB to the factory selected de fault parameter values at any time during normal operation Table 3 1 page 3 14 lists the default pa rameters for all 6...

Page 45: ...0 40 0 2 0 5 0 8 0 11 0 14 0 17 0 20 0 1 0 68075B 3 5 2 2 50 0 2 0 5 0 8 0 11 0 14 0 17 0 20 0 3 5 2 0 50 0 2 0 5 0 8 0 11 0 14 0 17 0 20 0 1 0 68077B 3 5 2 0 50 0 2 0 5 0 8 0 11 0 14 0 17 0 20 0 3 5...

Page 46: ...dB 68065B 50 ms 50 ms 50 50 ms 50 0 0 dB 68069B 50 ms 50 ms 50 50 ms 50 0 0 dB 68075B 50 ms 50 ms 50 50 ms 50 0 0 dB 68077B 50 ms 50 ms 50 50 ms 50 0 0 dB 68085B 50 ms 50 ms 50 50 ms 50 0 0 dB 68087B...

Page 47: ...parameters If you wish to follow along on your 680XXB you can obtain this same menu display by resetting your instrument press SYSTEM then press Reset Opening the Parameter In order for the value of a...

Page 48: ...r clockwise to increase or decrease the value of the parameter by the unit size Turning the knob rapidly changes the value of the parame ter in larger steps Using a Set Increment When editing frequenc...

Page 49: ...ays displayed on the data display in GHz A time entry may be terminated in Sec ms s or ns however it is always displayed on the data display in Sec If you make an error during data entry either 1 pres...

Page 50: ...CW frequency mode Selecting a CW Frequency There are several ways to select a CW frequency for output You can 1 edit the current frequency 2 en ter a new frequency or 3 select one of the 20 pre set fr...

Page 51: ...ou tag edit or output a frequency from the list Use the cursor control key to select a frequency from the frequency list The selected frequency is highlighted in reverse video and displayed in full be...

Page 52: ...Scan Dn keys Return to the CW Frequency Control menu by press ing Previous Menu Selecting a Power Level While in the CW frequency mode you can edit the current CW frequency output power level or enter...

Page 53: ...the ramp speed and turn the CW ramp on off To set ramp speed press Sweep Time The sweep time parameter opens for editing Edit the current sweep time using the cursor control key or rotary data knob o...

Page 54: ...ween se lected start and stop frequencies Step sweeps can be from a high frequency to a low frequency and vice versa The step size or number of steps between the start and stop frequencies and the dwe...

Page 55: ...er step parameter Press Step Size to open the step size parameter Press Num of Steps to open the number of steps parameter Open the parameter you wish to change then edit the current value using the c...

Page 56: ...le sweep starts when the trigger key is pressed If a sweep is in progress when the key is pressed it aborts and resets To go to the Step Sweep Trigger menu below from the Step Sweep Ramp menu press Tr...

Page 57: ...steps between the start and stop frequencies are controllable from the manual sweep menu To place the 680XXB in manual sweep frequency mode press the main menu key CW SWEEP SELECT At the resulting me...

Page 58: ...the start frequency pa rameter Edit F2 opens the stop frequency parame ter Edit the open frequency parameter using the cursor control key or the rotary data knob When you are finished close the open...

Page 59: ...fre quency parameter F6 dF provides a symmetrical frequency sweep about the center frequency F6 The sweep width is determined by the dF fre quency parameter To select one of the preset sweep ranges f...

Page 60: ...wer level or enter a new output power level for the frequency sweep Editing the Current Power Level Press Edit L1 to open the power level parameter then edit the current power level using the cursor c...

Page 61: ...rear panel AUX I O connector Pulse polarity is selectable from a system configuration menu To output markers during a sweep you must first se lect tag the marker frequencies from the Marker List menu...

Page 62: ...marker list that have been tagged can be output as markers during a sweep Press Tag to tag a selected frequency parameter place an m in front of it If a frequency parameter is already tagged pressing...

Page 63: ...ollowing Turn the alternate sweep mode on off Go to the alternate range menu to select a sweep range for the alternate sweep Go to the alternate level menu to select a power level for the alternate sw...

Page 64: ...menu Selecting an Alternate Sweep Range To go to the Alternate Range menu below from the Alternate Sweep menu press Alt Range Select the alternate sweep range Full F1 F2 F3 F4 F5 dF or F6 dF The menu...

Page 65: ...hange the level use the menu edit soft key to open the parameter then edit it A menu edit soft key is also provided to let you change the power level of the main sweep When you are done selecting the...

Page 66: ...the main menu key LEVEL ALC SELECT At the resulting menu display press Level The Level Menu below is displayed This menu lets you perform the following Edit the power level parameter Edit the level o...

Page 67: ...the following Select preset power levels L0 L1 L2 L3 or L4 for output Go to the Level List menu Go to the Tagged Levels menu Level List To go to the Level List menu below press Level List This menu le...

Page 68: ...elect another level from the list and press Output Level On the level list the output power level selection is marked by a black square or if tagged an L highlighted in reverse video When you are fini...

Page 69: ...and apply it to the dis played power level go to the Level Menu Then press Edit Offset As shown in the following menu this opens the offset parameter for editing Edit the current offset value using t...

Page 70: ...gle CW fre quency Menus provided let you set or select the sweep range the step size the dwell time per step and the sweep trigger To place the 680XXB in a CW power sweep mode from a CW frequency menu...

Page 71: ...n the step size parameter Press Num of Steps to open the number of steps parameter Open the parameter you wish to change then edit the current value using the cursor control key or ro tary data knob o...

Page 72: ...en the trigger key is pressed If a sweep is in pro gress when the key is pressed it aborts and re sets To go to the CW Level Sweep Trigger menu from the CW Level Sweep Ramp menu press Trigger Menu To...

Page 73: ...weep range start by opening either the start or stop power level pa rameter in the display above Edit L1 opens the start power level parameter Edit L2 opens the stop power level parameter Edit the ope...

Page 74: ...for each preset sweep range Setting a Preset Power Level Sweep Range At the Level Sweep Control menu select the power level sweep range L1 L2 L3 L4 L5 L6 L7 L8 or L9 L0 that you wish to set The menu t...

Page 75: ...ange and step size To select a step sweep frequency step power mode start with a step sweep menu display Then press the main menu key LEVEL ALC SELECT At the resulting menu display press Lvl Swp The L...

Page 76: ...ameter Press Num of Steps to open the number of steps parameter Open the parameter you wish to change then edit the current value using the cursor control key or ro tary data knob or enter a new value...

Page 77: ...ns with fre quency in a test setup The following paragraphs provide descriptions and operating instruc tions for the power leveling modes and functions Use the Leveling Modes menu map Chapter 4 Figure...

Page 78: ...menu To go to the Leveling Menu from the ALC Mode menu press Leveling Menu The Leveling Menu below is displayed To select internal ALC press Internal Pressing one of the other leveling menu soft keys...

Page 79: ...ect the external ALC input from an external detector press External Detector To select the external ALC input from a power me ter press Power Meter After you have made the external ALC input connec ti...

Page 80: ...e used to control the relative power level Power is not detected at any point and the absolute power level is uncalibrated Fixed gain mode is selected from the leveling menu To go to the Leveling Menu...

Page 81: ...nu below is displayed This menu lets you decouple the step attenuator from the ALC set the power level and set the at tenuation in 10 dB steps Press Decouple to decouple the step attenuator from the A...

Page 82: ...both the power slope and the pivot point The ALC Loop menu lets you activate the ALC power slope function To go to the ALC Loop Menu from the Level ALC Control Menu display press ALC Loop The ALC Loo...

Page 83: ...or ed iting Edit the current slope value using the cursor control key or rotary data knob or enter a new value using the key pad and the STEPS termination key When you have finished setting the open p...

Page 84: ...is accom plished by summing a power offset word from the power offset table with the CW generator s normal power level DAC word at each frequency point Up to five user level flatness correction power...

Page 85: ...oint in the test setup where the corrected power level is desired Power Meter Model and GPIB Address In order for the 680XXB to control the power meter the GPIB address and power meter model must be s...

Page 86: ...r meters are the Anritsu ML4803A and Hewlett Packard 437B 438A and 70100A Press Previous Menu to return to the main Config ure GPIB menu display At the Configure GPIB menu press Previous Menu to retur...

Page 87: ...you wish to create Next set the measurement frequency range by pressing Edit Start or Edit Stop to open the start Flo or stop Fhi frequency parameter for editing Edit the current frequency using the...

Page 88: ...table the set power level is delivered at the point where the calibration was performed To activate the selected power offset table and apply user level flatness correction to the test setup press On...

Page 89: ...OUTPUT ON OFF key Step 2 Press the LINE OPERATE STANDBY key to turn the instrument on Step 3 When the first menu is displayed after the start up display release the RF OUT PUT ON OFF key The contents...

Page 90: ...eters external interface language and increment sizes for frequency power level and time parameters Use the System Configuration menu map Chapter 4 Figure 4 9 to follow the menu sequences To go to the...

Page 91: ...e reference multiplier can be any value between 0 1 and 14 Changing the multiplier value changes the entered and displayed frequencies but it does not affect the output of the CW generator For example...

Page 92: ...le at the rear panel AUX I O connector The display will reflect your selection Press Penlift to select normally open N O or nor mally closed N C contacts on the internal penlift relay The penlift rela...

Page 93: ...lect your selection Press Delta F RF to select RF On or Off during fre quency switching in CW or step sweep modes The display will reflect your selection Press Ramp Rest to select 0 or 10 for the ramp...

Page 94: ...is displayed Press GPIB Address to change the address of the 680XXB on the bus the CW generator s default GPIB address is 5 Enter a new address between 1 and 30 using the cursor control key or the dat...

Page 95: ...ower meter on the GPIB the power meter s de fault GPIB address is 13 Enter a new address be tween 1 and 30 using the cursor control key or the data entry keypad and the terminator key Hz ns ADRS The n...

Page 96: ...splayed Press Freq Incr to open the frequency increment parameter Press Level Incr to open the power level increment parameter Press Time Incr to open the time increment pa rameter Open the parameter...

Page 97: ...number between 0 and 9 on the keypad The setup is now saved NOTE Setup 0 automatically saves the current front panel settings when the instrument is shutdown using the front panel LINE key Therefore i...

Page 98: ...ERATE STANDBY key to turn the instrument on Step 3 When the first menu is displayed after the start up display release the RF OUT PUT ON OFF key The contents of non volatile memory have now been erase...

Page 99: ...cure mode and how to return to normal operation To place the 680XXB in the secure mode first press SYSTEM to display the System Menu Next press Secure This places the CW generator in the secure mode a...

Page 100: ...Table of Contents 4 1 INTRODUCTION 4 3 4 2 MENU MAP DESCRIPTION 4 3 Chapter 4 Local Operation Menu Maps...

Page 101: ...o gether to show the sequence of menu selection A brief description of the function of each menu s soft keys is provided If a menu soft key se lects another menu then it is shown linked to that menu F...

Page 102: ...er Level CW Ramp On Off Set The Sweep Time Typical Menu Soft Key Functional Description Points To The Menu Displayed Whenever The Menu Soft Key Is Depressed A Main Menu Display Main Menu Key Cursor In...

Page 103: ...d Frequency Edit Current Power Level Edit Current Frequency Edit Current Power Level Edit Current Power Level On Off Set The Sweep Time Set Slave DF Frequency Set Slave Main Power Level Master Slave O...

Page 104: ...Off On Off On Off Edit Step Size Edit Number of Steps Edit Start Frequency Edit End Frequency Edit Current Power Level Tag Untag Highlighted Marker Frequency Edit Highlighted Marker Frequency On Off E...

Page 105: ...CW SWEEP SELECT FREQUENCY CONTROL LEVEL ALC SELECT LEVEL CONTROL Edit Start Frequency Edit End Frequency Edit Start Frequency Edit End Frequency Edit Current Power Level Edit Step Size Edit Number of...

Page 106: ...ay Showing Level Offset On Edit Current Power Level Output Previous Tagged Power Level Edit Current Power Level Tag Untag Highlighted Power Level Edit Highlighted Power Level Output Highlighted Power...

Page 107: ...EP SELECT FREQUENCY CONTROL LEVEL ALC SELECT LEVEL CONTROL On Off Edit Step Size Edit Dwell TIme On Off On Off Edit Number of Steps Edit End Power Level Edit Start Power Level Edit End Power Level Edi...

Page 108: ...REQUENCY CONTROL LEVEL ALC SELECT LEVEL CONTROL SYSTEM CW SWEEP SELECT FREQUENCY CONTROL LEVEL ALC SELECT LEVEL CONTROL Edit Start Power Level Edit End Power Level Edit Start Power Level Edit End Powe...

Page 109: ...Press To Decrease Attenuation 10dB Steps ALC Slope On Off Edit The ALC Slope Edit The Pivot Point Selects Front Panel External ALC Input Selects Rear Panel External ALC Input Adjust the External ALC S...

Page 110: ...ms The Display Select RF On or Off During Retrace Select Reset For Single Sweep 0 For Bottom of Sweep Ramp 10 For Top of Sweep Ramp Select RF On or Off During Frequency Switching In CW and Step Modes...

Page 111: ...ower Up 5 4 Self Test 5 4 Resetting the 680XXB 5 4 Warmup Time 5 4 5 5 CW FREQUENCY ACCURACY TEST 5 5 Test Setup 5 5 Test Procedure 5 6 5 6 POWER LEVEL ACCURACY AND FLATNESS TESTS 5 13 Test Setup 5 13...

Page 112: ...hese tables are included as part of the operational verifica Instrument Critical Specification Recommended Manufacturer Model Frequency Counter with Cable Kit and External Mixer Range 0 01 to 65 GHz I...

Page 113: ...XB to insure proper operation of the instrument PCBs and other internal assemblies To self test the CW generator press SYSTEM Then press the System Menu soft key Selftest When the self test is complet...

Page 114: ...e switch ensure the switch is set to EXT Step 2 Connect the 680XXB RF OUTPUT to the Frequency Counter RF Input as follows a For measuring frequencies of 0 01 to 1 0 GHz connect to the Band 2 input Con...

Page 115: ...nter read ing meets specifications 100 Hz of the value shown on the test record for stand ard models 10 Hz for instruments with Option 11 Step 3 Record the Frequency Counter reading on the test record...

Page 116: ...___________ 2 000 002 000 _____________________ 2 000 003 000 _____________________ 2 000 001 000 _____________________ 2 000 004 000 _____________________ 2 000 002 000 _____________________ 2 000 00...

Page 117: ...00 000 _____________________ 46 000 000 000 _____________________ 38 000 000 000 _____________________ 50 000 000 000 _____________________ 40 000 000 000 _____________________ 2 000 001 000 _________...

Page 118: ...000 _____________________ 54 000 000 000 _____________________ 54 000 000 000 _____________________ 58 000 000 000 _____________________ 58 000 000 000 _____________________ 60 000 000 000 ___________...

Page 119: ...__________________ 2 000 000 100 0 _____________________ 2 000 000 200 0 _____________________ 2 000 000 300 0 _____________________ 2 000 000 100 0 _____________________ 2 000 000 400 0 _____________...

Page 120: ...00 000 000 0 _____________________ 35 000 000 000 0 _____________________ 46 000 000 000 0 _____________________ 38 000 000 000 0 _____________________ 50 000 000 000 0 _____________________ 40 000 00...

Page 121: ...000 000 0 _____________________ 50 000 000 000 0 _____________________ 54 000 000 000 0 _____________________ 54 000 000 000 0 _____________________ 58 000 000 000 0 _____________________ 58 000 000...

Page 122: ...Step 2 Connect the Power Sensor to the RF OUT PUT of the 680XXB NOTE For 40 GHz models use the K male to 2 4 mm female adapter to connect the Power Sensor to the RF OUTPUT connector Step 3 Connect th...

Page 123: ...e current power level parameter for editing e Set L1 to the power level noted on the test record Step 2 Measure the output power level with the Power Meter and record the reading on the test record St...

Page 124: ...d b Press Step to place the 680XXB in the step sweep frequency mode and dis play the Step Sweep Menu c With the Step Sweep menu displayed press the main menu key FREQUENCY CONTROL The Sweep Frequency...

Page 125: ...NOTE Monitor the 680XXB s Horizontal Output on the Oscilloscope to deter mine sweep start and stop Step 2 As the 680XXB steps through the full fre quency range measure the maximum and minimum Power M...

Page 126: ...Bm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm...

Page 127: ...7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm ___...

Page 128: ...16 dBm 15 dBm 14 dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm ____...

Page 129: ...4 dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _______...

Page 130: ..._dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1...

Page 131: ...Bm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm...

Page 132: ..._______dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 17 dBm 16 dBm 15 dBm 14 dBm 13 dBm 12dBm 11 dBm 10 dBm 9 dB...

Page 133: ...____dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 15 dBm 14 dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6...

Page 134: ..._______dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm _________dBm ___...

Page 135: ..._____dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm _________dBm _______...

Page 136: ...dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 17 dBm 16 dBm 15 dBm 14 dBm 13 dBm 12dBm 11 dBm 10 dBm 9 dBm 8 dBm 7dBm 6 dBm 5...

Page 137: ..._________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 15 dBm 14 dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dB...

Page 138: ...___dBm _________dBm _________dBm _________dBm _________dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm 6 dBm _________dBm _________dBm _________dBm _________dBm _________dB...

Page 139: ..._dBm _________dBm _________dBm _________dBm 3 5 dBm 2 5 dBm 1 5 dBm 0 5 dBm 0 5 dBm 1 5 dBm 2 5 dBm 3 5 dBm 4 5 dBm 5 5 dBm 6 5 dBm 7 5 dBm 8 5 dBm _________dBm _________dBm _________dBm _________dBm...

Page 140: ...m _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm _________dBm _________dBm _________dBm __...

Page 141: ..._________dBm _________dBm _________dBm _________dBm _________dBm 7 5 dBm 6 5 dBm 5 5 dBm 4 5 dBm 3 5 dBm 2 5 dBm 1 5 dBm 0 5 dBm 0 5 dBm 1 5 dBm 2 5 dBm 3 5 dBm 4 5 dBm _________dBm _________dBm _____...

Page 142: ..._____dBm _________dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________...

Page 143: ...__dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm...

Page 144: ..._________dBm _________dBm _________dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _...

Page 145: ...________dBm _________dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm ____...

Page 146: ...m 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm ___...

Page 147: ...Bm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _______...

Page 148: ...__dBm _________dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm ________...

Page 149: ...dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm...

Page 150: ...__dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 6 dBm 5 dBm 4 dBm 3 dBm 2dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm 6 dBm...

Page 151: ...dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm 6 dBm 7 dBm 8 dBm 9 dBm _...

Page 152: ...Bm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm 6 dBm _________dBm _________dBm _________dBm __...

Page 153: ...________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm 6 dB...

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Page 155: ...___dBm _________dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dB...

Page 156: ..._________dBm _________dBm _________dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm...

Page 157: ..._________dBm _________dBm _________dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm ___...

Page 158: ...dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _...

Page 159: ...7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _____...

Page 160: ...____dBm _________dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm ______...

Page 161: ...__dBm _________dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm 6 dBm 5 dBm 4 dBm 3 dBm 2 dBm 1 dBm 0 dBm 1 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________d...

Page 162: ...dBm 1 5 dBm 2 5 dBm 3 5 dBm 4 5 dBm 5 5 dBm 6 5 dBm 7 5 dBm 8 5 dBm 9 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _______...

Page 163: ...__dBm 0 dBm 1 dBm 2 dBm 3 dBm 4 dBm 5 dBm 6 dBm 7 dBm 8 dBm 9 dBm 10 dBm 11 dBm 12 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________...

Page 164: ...5 dBm 3 5 dBm 4 5 dBm 5 5 dBm 6 5 dBm 7 5 dBm 8 5 dBm 9 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _______...

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Page 166: ...0 5 dBm 0 5 dBm 1 5 dBm 2 5 dBm 3 5 dBm 4 5 dBm 5 5 dBm 6 5 dBm 7 5 dBm 8 5 dBm 9 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm ________...

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Page 168: ...dBm 1 5 dBm 2 5 dBm 3 5 dBm 4 5 dBm 5 5 dBm 6 5 dBm 7 5 dBm 8 5 dBm 9 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _______...

Page 169: ...dBm 4 dBm 5 dBm 6 dBm 7 dBm 8 dBm 9 dBm 10 dBm 11 dBm 12 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm ________...

Page 170: ...5 dBm 2 5 dBm 3 5 dBm 4 5 dBm 5 5 dBm 6 5 dBm 7 5 dBm 8 5 dBm 9 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm...

Page 171: ...Bm 3 5 dBm 4 5 dBm 5 5 dBm 6 5 dBm 7 5 dBm 8 5 dBm 9 5 dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dBm _________dB...

Page 172: ...ESSAGES 6 3 Self Test Error Messages 6 3 Normal Operation Error and Warning Status Messages 6 8 6 3 TROUBLESHOOTING 6 10 6 4 ROUTINE MAINTENANCE 6 13 Cleaning the Fan Filter 6 13 Cleaning the Data Dis...

Page 173: ...ncludes internal diagnostics that self test the instrument These self test diagnos tics perform a brief go no go test of most of the in strument PCBs and other internal assemblies You can perform a CW...

Page 174: ...16 high stability 10 MHz crystal oscillator has not reached operating temperature The 680XXB is still operable but frequency accuracy and stability may be degraded Error 109 The 100MHz Reference is n...

Page 175: ...B is still operable but will not generate a CW Ramp Error 119 Center Frequency Circuits Failed Indicates a failure of the center frequency circuitry on the A12 PCB Do Not Attempt to Operate Refer the...

Page 176: ...hed filter path within the switched filter assembly The 680XXB may or may not produce an RF output in this frequency range Use caution and always determine the output power level when operating the 68...

Page 177: ...produce an RF output in the 20 25 GHz frequency range Error 143 Slope DAC Failed Indicates a failure of the level slope DAC on the A10 PCB The 680XXB still operates normally but RF output level flatne...

Page 178: ...equency parameter entry causes a frequency range error LOCK ERROR Displayed in the frequency parameters area when the output frequency is not phase locked The frequency accuracy and stability of the R...

Page 179: ...led power rating Reducing the power level usually clears the warning message EXT REF This status message indicates that an external 10 MHz signal is being used as the reference signal for the 680XXB O...

Page 180: ...power source then check the line fuse on the rear panel If the fuse is defective replace see page 6 13 If the fuse is good go to the next step Step 2 Check to see if power is available at the power r...

Page 181: ...ating clean the air filter see page 6 14 If the fan is not operating call a service technician LOCK ERROR is Displayed Trouble Description This message is displayed in the frequency pa rameters area t...

Page 182: ...ndicate that 1 the F value entered results in a sweep outside the range of the instrument 2 the step size value en tered is greater than the sweep range or 3 the number of steps en tered results in a...

Page 183: ...panel by pulling out on the four panel fas teners holding it in place Figure 6 1 Step 2 Vacuum the honeycomb filter to clean it Step 3 Install the filter guard back on the rear panel Step 4 Press in o...

Page 184: ...ve the fuse holder Step 3 Replace the fuse in the fuse holder Step 4 Install the fuse holder in the rear panel Using the screwdriver rotate the fuse cap clockwise to secure the fuse holder in place St...

Page 185: ...Fuse Fuse Holder Figure 6 2 Replacing the Line Fuse OPERATOR ROUTINE MAINTENANCE MAINTENANCE 680XXB OM 6 15 6 16...

Page 186: ...on 7 7 Master Slave Operation in VNA Mode 7 7 Terminating Master Slave Operation 7 9 7 3 USE WITH A 562 SNA 7 10 Connecting the 680XXB to the 562 7 10 7 4 USE WITH A 360B VNA 7 11 Connecting the 680XX...

Page 187: ...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 sig...

Page 188: ...panel Serial I O connectors on the Master and Slave 68XXXBs Step 3 Connect one end of a coaxial cable to the rear panel 10 MHz REF OUT connector on the Master 68XXXB Connect the other end to the rear...

Page 189: ...press Master Slave to go to the Master Slave Menu display below This menu lets you perform the following Go to the Slave Frequencies List menu Set the dF frequency for the Slave unit Set the Slave un...

Page 190: ...ress Previous Menu to return to the Master Slave menu below The Master Slave menu lets you set the dF fre quency and L1 and L2 power level parameters for the Slave unit Press Slave DF to open the dF f...

Page 191: ...whenever the F1 F2 sweep range is se lected on the Master 68XXXB The Master 68XXXB will sweep from F1 F2 with the values of F1 and F2 defined in the Master units s frequency list Master Slave Operatio...

Page 192: ...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 Previous Menu to return to the Slave...

Page 193: ...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 At the Master Slave Menu display press Enable This terminates master s...

Page 194: ...UX I O connector Step 2 Connect one end of the dedicated system bus cable P N 2100 1 to the 562 rear panel DEDICATED GPIB connector Con nect the other end of the cable to the 680XXB rear panel IEEE 48...

Page 195: ...nal from the 680XXB Due to the inherent resolution of the 360B s frequency readout frequency resolution is limited to 1 kHz intervals Connecting the 680XXB to the 360B Connect the 680XXB CW generator...

Page 196: ...uring the 680XXB In order for the 680XXB to operate with a 360B in tracking receiver mode its GPIB address and data terminator must match the System Bus source ad dress and data terminator that are se...

Page 197: ...e CW generator When the 360B takes control the display of all pa rameters on the 680XXB is disabled and the mes sages Secure Mode Active and Remote appear on the front panel display Terminating 360B T...

Page 198: ...ies 680XXB Synthesized CW Generator A 2 REAR PANEL CONNECTORS Figure A 1 provides a illustration of the rear panel and describes the rear panel connectors A 3 CONNECTOR PINOUT DIAGRAMS Figures A 2 and...

Page 199: ...pinout diagram for this connector is shown in Figure A 2 SEQ SYNC OUT Provides a 5V signal during sweep retrace at bandswitching points and during each frequency step in step sweep mode Also when vide...

Page 200: ...ccepts 180 264 Vac 48 440 Hz line voltage Input Line Voltage Receptacle Provides for connecting line voltage to the 680XXB IEEE 488 GPIB 24 pin connector that pro vides for remotely controlling the CW...

Page 201: ...ANKING Retrace Blanking Output Provides a 5V or 5V signal coincident with sweep retrace Signal polarity selected from a front panel menu 7 L ALT SWP L Alternate Sweep Output Provides a TTL low level s...

Page 202: ...l Input Permits a TTL low level signal to pause the sweep The sweep resumes when the signal is removed 19 AUX 2 Aux 2 Auxiliary input output to the processor PC3 20 BANDSWITCH BLANK Bandswitch Blankin...

Page 203: ...s have accepted the current data byte for internal processing 9 IFC Interface Clear A low true state places all bus instruments in a known quiescent state unaddressed to talk unaddressed to listen and...

Page 204: ...tep size does not divide into the selected frequency range the last step is truncated Dwell Time Per Step Variable from 1 ms to 99 seconds Switching Time typical maximum 15 ms 1 ms GHz step size or 40...

Page 205: ...er 500 MHz to 2 2 GHz 680X5B 50 dBc 10 MHz to 50 MHz 30 dBc 50 MHz to 2 GHz 40 dBc 2 GHz 2 2 GHz for 680X5B to 20 GHz 50 dBc 20 GHz to 40 GHz 40 dBc 50 GHz units 40 GHz to 50 GHz 40 dBc 60 GHz units 4...

Page 206: ...2 to 20 0 20 0 to 40 0 13 0 9 0 6 0 11 0 7 0 3 0 68069B 0 01 to 2 0 2 0 to 20 0 20 0 to 40 0 13 0 9 0 6 0 11 0 7 0 3 0 68075B 0 5 to 2 2 2 2 to 20 0 20 0 to 40 0 40 0 to 50 0 11 0 10 0 2 5 2 5 10 0 8...

Page 207: ...ction of RF On or RF Off during frequency switching in CW or Step Sweep modes RF On Off During Retrace System menu selection of RF On or RF Off during retrace Attenuation Below Max Power Frequency GHz...

Page 208: ...e step attenuator SWEEP FREQUENCY STEP POWER A power level step occurs after each frequency sweep Power level remains constant for the length of time required to complete each sweep REMOTE OPERATION A...

Page 209: ...aborted Selectable from the system menu Master Slave Operation Allows two 68XXXB output sig nals to be swept with a user selected frequency offset One 68XXXB synthesizer controls the other via AUX I...

Page 210: ...es when the signal is removed V GHz OUT Provides a reference voltage relative to the RF output frequency refer to the table below AUX I O Auxiliary Input Output Provides for most of the rear panel BNC...

Page 211: ...Panel RF Output Moves the RF output connector to the rear panel Option 11 0 1 Hz Frequency Resolution Provides fre quency resolution of 0 1 Hz Option 14 WILTRON 360B VNA Compatibility Modifies rack mo...

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