Wiltron 680 B Series Скачать руководство пользователя страница 68

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Press

Tag

to mark a selected power level (place an

in front of it). If a power level is already tagged,

pressing

Tag

will untag it (remove the

). Tagging

selected power levels lets you quickly switch be-
tween them using the scan keys of the Tagged Lev-
els menu.

Press

Edit

to edit the selected power level or enter

a new power level.

Press

Output Level

to output the selected level.

This power level is output until you select 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

highlighted in

reverse video.

When you are finished , press

Previous Menu

to re-

turn to the Level Control menu display.

Scanning Tagged Levels–To go to the Tagged Lev-
els menu (below) from the Level Control menu,
press

Tag Lvl Menu

This menu lets you select the tagged power levels
for output using the

Scan Up

and

Scan Dn

keys.

Return to the Level Control menu display by press-
ing

Previous Menu

LOCAL (FRONT

FIXED POWER

PANEL) OPERATION

LEVEL OPERATION

680XXB OM

3-39

Содержание 680 B Series

Страница 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...

Страница 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...

Страница 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...

Страница 5: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

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

Страница 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 _____________...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ___...

Страница 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 ____...

Страница 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 _______...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ___...

Страница 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 _______...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 __...

Страница 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 _____...

Страница 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 _________...

Страница 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...

Страница 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 _...

Страница 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 ____...

Страница 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 ___...

Страница 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 _______...

Страница 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 ________...

Страница 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...

Страница 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...

Страница 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 _...

Страница 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 __...

Страница 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...

Страница 154: ...______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 ________...

Страница 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...

Страница 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...

Страница 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 ___...

Страница 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 _...

Страница 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 _____...

Страница 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 ______...

Страница 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...

Страница 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 _______...

Страница 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 _________...

Страница 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 _______...

Страница 165: ...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 _________dBm ________...

Страница 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 ________...

Страница 167: ...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 _________dBm _________...

Страница 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 _______...

Страница 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 ________...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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