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HP 83751A, Руководство пользователя

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Sweep Keys

Pressing the (TIME) key displays the sweep time and allows it to be changed.

If this key is pressed when analog sweep mode is on, the time for the 
portion of the sweep becomes the active parameter, and is shown in the
MARKER/SWEEP/STATUS display.

If manual sweep mode is on, it will be turned off.

If this key is pressed when stepped sweep mode is on, the dwell

time per point becomes the active parameter, and is shown in the
MARKER/SWEEP/STATUS display.

The minimum value of sweep time which may be entered is a function of the

desired frequency range. The last entered value of sweep time is compared to
this limit, even after the frequency range is readjusted. If the entered value is

less than the limit, then the limit value is used, and if the entered value is
greater than the limit, then the entered value is used.

The Sweep time is displayed as 

 

The

dwell time is displayed as 

 Units can be

either ms or s.

Step size cannot be set for sweep and dwell time. It is a 

 data

progression like 10 ms, 20 ms, 50 ms, etc. The SWEEP annunciator on the left
FREQUENCY display is lit 

 during the time the instrument is actually

sweeping.

N O T E

The 

SWEEP 

annunciator is on all the time during fast sweeps and cycles on and off for slower

sweeps, however it is not necessarily an accurate indicator of when the instrument is actually in a
forward sweep.

12-4

Содержание 83751A

Страница 1: ...User s Guide HP 83751A B and HP 83752AlB Synthesized Sweepers ...

Страница 2: ...ewlett Packard makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and Etness for a particular purpose Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Copyright Hewlett Packard Company 1993 199...

Страница 3: ...um leveled power The sweepers are SCPI and HP II3 programmable with HP 8350 HP IB mnemonics for drop in replacement of an HP 8350 sweep oscillator The sweepers are designed for optimum use with HP 8757 scalar analyzers For specillcation and option information refer to Chapter 17 Specilkations and Options in this manual This User s Guide is written to provide operating information to the user who i...

Страница 4: ...The Synthesized Sweeper at a Glance The following Egure and accompanying text explain some features of the sweeper pg425ab The Synthesized Sweeper iv ...

Страница 5: ... to increase or decrease a parameter in predetermined steps 9 The RF ON OFF key is used to toggle the RF output power on and off 10 The RF OUTPUT connector mates with a female APC 3 5mm precision connector on standard instruments The connector metes with a type N male connector on option 1ED instruments The RF OUTPUT connector will be found on the rear panel of sweepers with option lE4 11 The fron...

Страница 6: ... Chapter 4 Generating a Millimeter Signal illustrates the setups for using a millimeter head with your option 1EE sweeper Chapter 5 Creating User Flatness Arrays explains how to create user flatness correction arrays which calibrate the power level at a remote test port Chapter 6 Operating a Master Slave Setup shows the steps necessary to configure two sweepers for two tone measurement capabilitie...

Страница 7: ...he Entry group Special Functions explains the various selections in the special functions menu which is accessed by selecting m SPECIAL Error Messages contains lists of the error messages that might be generated during use of the instrument Specifications and Options contains a list of the sweeper s warranted performance specifications and typical operating parameters as well as the various mechan...

Страница 8: ...s that its calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the Institute s calibration facility and to the calibration facilities of other International Standards Organization members Regulatory Information The Safety and Regulatory Information chapter contains regulatory information Vlll ...

Страница 9: ...instrument will execute its programming instructions when properly installed on that instrument Hewlett Packard does not warrant that the operation of the instrument or software or firmware will be uninterrupted or error free LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfacing una...

Страница 10: ...ements and other customer assistance agreements are available for Hewlett Packard products Fbr any assistance contact your nearest Haolett Packard Sales and Service Ome Refer to the list of Sales and Service 0me s on the following page X ...

Страница 11: ...5141 697 4232 IN FRANCE Hewlett Packard France F 91947 Les Ulis C e d e x Orsey 161 907 78 25 IN GERMAN FEDERAL REPUBLIC Hewlett Packard GmbH Vertriebszentrale Frankfurt Berner Strasse 117 Postfach 560 140 D 6000 Frankfurt 56 1061 II 50 04 I IN GREAT BRITAIN Hewlett Packard Ltd King Street Lane Winnersh Wokingham Berkshire RGll 5AR 0734 784774 IN OTHER EUROPEAN COUNTRIES Hewlett Packard Schweizl A...

Страница 12: ... N I N G The warning note denotes a hazard It calls attention to a procedure which if not correctly performed or adhered to could result in iqiury or loss of life Do not proceed beyond a warning note until the indicked conditions are fully understood and met Instrument Markings Instruction The instruction manual symbol The product is marked with this symbol when it is necessary Manual for the user...

Страница 13: ...ent electrical shock do not remove covers Any adjustments or service procedures that require operation of the instrument with protective covers removed should be performed only by trained service personnel W A R N I N G For continued protection against fire hazard replace line fuse only with the same type and rating F 6 3A 250V The use of other fuses or material is prohibited C A U T I O N If this...

Страница 14: ...ally located on the instrument SHIFT FUNCTION This represents a shift function blue text above front panel keys Text in this font represents FREQUENCY MARKER SWEEP STATUS and POWER displays ANNUNCIATOR Text in this font represents the annunciators that are displayed in the lower portion of the sweeper display ...

Страница 15: ...r See also Leveling with millimeter wave source modules option 1EE only See also 3 Generating a Stepped Sweep 4 Generating a Millimeter Signal Using millimeter heads with B model high power sweepers Using millimeter heads with A model standard power sweepers See also 5 Creating User Flatness Arrays Creating a user flatness array To set up the sweeper To set up the power meter To start the user fla...

Страница 16: ...Connectors Multi pin Connectors AUXILIARY INTERFACE HP IB SOURCE MODULE INTERFACE Option 1EE Only RF Output Connector Display Frequency Display Marker Sweep Status and Power Display Annunciators HP IB Lang Address Switch See Also Knob Equivalent SCPI Commands Line POWER Switch Power Cables Instrument State Keys 5 7 5 8 5 8 5 9 6 4 6 6 6 7 7 3 7 5 7 8 7 8 7 10 7 13 7 15 7 16 7 17 7 18 7 19 7 23 7 2...

Страница 17: ... 11 9 11 10 11 12 Sweep Keys ITIME TRIG MODE Q SINGLE TRIG Power Keys P O W E R LEVEL OWER SWEEP ALC MODE 3 FLTNEss ON OFF_ Entry Keys Q a EEiz Number Pad Keys Unit Keys j ON OFF ENTRY OFF PEgK 9 4 9 7 9 8 10 4 10 6 10 7 12 4 12 7 12 10 13 3 13 5 13 7 13 10 14 3 14 4 14 5 14 6 14 7 14 8 14 9 14 10 Contents 3 ...

Страница 18: ... Messages Command Error Execution Error Device specific Error Query Error Instrument Specific Error Messages Block Transfer Errors Bus Control Errors Parsing and Compatibility Errors Diagnostics and Self test Errors Internal Hardware Errors Hardware Configuration Errors Calibration Routine Errors Loops Unlocked Errors Miscellaneous Hardware Dependent Errors 16 3 16 4 16 5 16 7 16 7 16 13 16 19 16 ...

Страница 19: ...eled power Subharmonics Non harmonic Spurious Residual FM 0 05 to 15 kHz bandwidth Modulation Pulse AM FM General Compatibility Programming Master Slave two tone Measurements Environmental Warmup Time Power Requirements Dimensions Weight Options Electrical Options Option 1El Add Output Step Attenuator Option lE4 Rear Panel RF Output 17 3 17 4 17 4 17 4 17 4 17 5 17 5 17 5 17 7 17 7 17 8 17 8 17 8 ...

Страница 20: ... to HP Calibration Service Option W54 Five Year MIL STD Calibration Service Documentation Options Option OB2 Extra Operating Documentation Option OB3 Service Documentation Certification Options Option 1BN Certification Option 1BP Certification with Data 17 19 17 19 17 20 17 20 17 20 17 20 17 20 17 21 17 21 17 21 17 21 17 21 17 22 17 22 17 22 17 22 17 22 17 22 18 Safety and Regulatory Information R...

Страница 21: ...7 2 Sweeper Connectors Rear Panel 7 4 7 3 Auxiliary Interface Connector 7 8 7 4 HP B Connector and Cable 7 10 7 5 Interface Signals of the Source Module Connector 7 13 7 6 Sweeper Display 7 16 7 7 Sweeper Display and LED Annunciators 7 19 7 8 HP B Address Switch Settings 7 23 7 9 Instrument Language Switch Settings 7 24 7 10 Clear Register Contents Settings 7 24 7 l 1 The Sweeper Line POWER Switch...

Страница 22: ...Contents 17 3 Typical Phase Noise 10 GHz Carrier 17 12 17 4 Dimensions 17 17 Contents 8 ...

Страница 23: ...scription of the Auxiliary Interface 7 9 8 l Factory Preset Conditions 8 4 14 1 Step Sizes 14 3 15 1 Special Functions for the HP 83750 Series Sweepers 15 4 15 2 FM Sensitivity When Using Source Modules 15 19 Contents 9 ...

Страница 24: ...1 Performing the Operator s Check ...

Страница 25: ...blem areas if it is not The operator s check does not ensure performance to specifications The operator s check should be performed on a weekly basis or whenever the integrity of the sweeper is in question To perform the operator s check the following tasks should be performed in order 1 Run the full self test 2 Run peak power tracking 3 Check the maximum leveled power 4 Check the output power l 2...

Страница 26: ...llowing keys on the sweeper The message that appears in the MARKER SWEEP STATUS display is one of the following Full self test has not been performed since the last time the line power was turned on Full self test has been performed and passed all tests Full self test has been performed and test XXXXXX was either the only test that failed or was the most significant failure 3 Press the jj key agai...

Страница 27: ...say Ful 1 Ted PHASED refer to the section entitled If You Have a Problem at the end of this chapter The full self test is actually a series of tests performed to check different instrument functions If the sweeper fails just one test the display shows the title of the failed test If the instrument fails more than one test the test title shown is the most signilicant failure 1 4 ...

Страница 28: ...er head connected to the sweeper 2 Press PRESET Cm P W The MARKER SWEEP STATUS display shows the progression of the sweep as the instrument adjusts the power tracking When you run peak power tracking or autotracking the instrument optimizes its output power over the sweeper s full frequency range by tracking the output titer with the RF source output N O T E Peak power tracking takes approximately...

Страница 29: ...z H P 83751N33752A HP 837518 H P 837528 2 GHz 2 GHz lO dBm 17 dBm 16 dBm 17 dBm Option 1El step attenuatorl reduce by 1 dB 4 Make sure the UNLEV annunciator is not lit at any time The UNLEV annunciator is located in the POWER display area See Figure l l 5 Press m cm to change the sweep time to 2 seconds 6 Press SINGLE TRIG and make sure the UNLEV annunciator does not come on at any point during th...

Страница 30: ...2B sweepers have a power specification that is split at 2 GHz 7 Press the following keys to set a sweep range of 2 GHz to 20 GHz and a power level of 17 dBm or 16 dBm for instruments with option 1El START_ 0 iqGqLq POWER mm 117 or 16 GHz dB mL 8 Press NGLE TRIG_ and make sure the UNLEV annunciator does not come on at any point during the sweep If the annunciator comes on it indicates the instrumen...

Страница 31: ...wer 2 Press PRESET_ 3 Press ccw ZiJ CGHz dB mL 4 Press POWER LEVEL and enter the specified power for the CW frequency you set Refer to the following table Terminate the power level entry by pressing GHz dB mZ Instrument Maximum leveled Power Specification H P 83751Ml3752A HP 837518 HP 837528 2 GHz 1 2 GHz I0 dBm I7 dBm I6 dBm I7 dBm 1 Option IEI lstep attenuetorl reduce by 1 dB 1 l 8 ...

Страница 32: ...strument specification l If the measured value is less than the specihed power turn the front panel knob until the value measured is at least the speciEed power level l Make sure that the UNLEV annunciator doesn t light If the annunciator does light this indicates an unleveled condition 7 Repeat steps 3 through 6 for the following setting s 2 5 GHz 1 5 GHz for HP 83752AA instruments only 50 MHz fo...

Страница 33: ...lf test has failed if the message that appears when it is done is anything except Full Test PHSSED q Make sure all external cables are disconnected from the sweeper and run the self test again q If the test still fails send the instrument to an HP service center for repair including a description of the failed test and any other error messages N O T E If you need to ship your sweeper remove the fr...

Страница 34: ...particular instrument q If the measured value of power in step 6 of To check the output power is mo e than the specified power turn the front panel knob counterclockwise until the value measured equals the specified power Note the sweeper s front panel reading and use this value to repeat the maximum leveled power check q If the check still fails contact the nearest Hewlett Packard office for assi...

Страница 35: ...I 2 Externally Leveling the Sweeper ...

Страница 36: ...veled operations the output power from the sweeper is detected by an external sensor The output of this detector is returned to the leveling circuitry and the output power is automatically adjusted to keep power constant at the point of detection 2 2 ...

Страница 37: ...CTIONAL COUPLER OR POWER SPLITTER LEVELED OUTPUT pg417ab Figure 2 1 ALC Circuit Externally leveled 2 Press ALC MODE 8 repeatedly until the MARKER SWEEP STATUS display shows HLC Diode Note that the EXT ALC annunciator is lit 3 Enter the coupling factor by selecting m EXT CAL and then entering the desired number 2 3 ...

Страница 38: ... externally leveled the power level feedback is taken from the external negative detector input rather than the internal detector This feedback voltage controls the ALC system to set the desired RF output Figure 2 2 shows the input power versus output voltage characteristics for typical HP diode detectors From the chart the leveled power at the diode detector input resulting from any external leve...

Страница 39: ...plers splitters 10 v 1 0 v 100 mv 10 mv 1 mv I mv 40 30 0 10 20 f30 20 dBV lO dBV 6 dBV 0 dBV 10 dBV 20 dBV 30 dBV 40 dBV 50 dBV 60 dBV 66 dBV 70 di3V 80 dBV D E T E C T O R I N P U T P O W E R dBM Figure 2 2 Typical Diode Detector Response at 25 C pg431ob 2 5 ...

Страница 40: ...s displayed Inserting 40 dB of attenuation results in an ALC level power level attenuator value of 0 dBm which is well within the range of the ALC This gives a margin for AM or other functions that vary the power level The ALC level should be greater than or equal to 10 dBm for A model sweepers standard power and 5 dBm for B model sweepers high power Adjust the attenuator so that the ALC level is ...

Страница 41: ...ange mode for the output power setting at which you are leveling POWER METER LEVELED OUTPUT j g pLER POWER SENSOR I pg418ab Figure 2 3 leveling with a Power Meter 2 Press ALC MODE J repeatedly until the MARKER SWEEP STATUS display shows ALC Pcllwr Met w Note that the EXT ALC annunciator is lit 3 Select m EXT CAL CGHz dB mL If a directional coupler is used enter the coupling factor of the coupler 2...

Страница 42: ... power setting don t agree set the coupling factor step size to 10 dR and then use the a Q keys to adjust the coupling factor up or down until the power meter and the sweeper power setting agree 5 Select the sweep tune by pressing I TIME and then entering the desired sweep rate NOTE Due to the settling time required by power meters it is recommended to use a 40 second sweep rate Unlike detector le...

Страница 43: ...urce module Figure 2 4 illustrates the setup that is used with the HP 83751B and HP 83752B high power models No external amplifier is required to obtain maximum specified power The interface extender cable HP part number 5062 7202 allows the source module to be positioned in front of the sweeper SOURCE MODULE I NTERFACE RF OUTPUT ADAPTER IF REQU I RED MM WAVE SOURCE MODULE RF IN b LEVELED OUTPUT p...

Страница 44: ...ULE LEVELED OUTPUT Figure 2 5 Millimeter wave Source Module leveling Using a Microwave Amplifier 1 Turn the sweeper line power off 2 Set up the equipment as shown in Figure 2 4 or Figure 2 5 3 Turn the sweeper line power on and press C 1 4 When the c j key is pressed the sweeper configures itself for source module operation and all of the ALC data necessary to communicate properly with the sweeper...

Страница 45: ...Externally leveling the Sweeper See also To obtain flatness corrected power refer to Creating User Flatness Correction Arrays later in this manual 2 11 ...

Страница 46: ...3 Generating a Stepped Sweep ...

Страница 47: ...e J key The MARKER SWEEP STATUS display should read Sweep St eF Iknt and the STEP annunciator should be lit 6 The instrument is now running in stepped sweep mode N O T E The stepped sweep time is calculated by the following formula SteppedSweep Time Dwell Time Number of Points Therefore the stepped sweep time can be changed in one of two ways l By changing the dwell time Press CTIME while in stepp...

Страница 48: ...4 Generating a Millimeter Signal ...

Страница 49: ...ble HP part number 5062 7202 that is provided with all option 1EE sweepers allows the source module to be positioned in front of the sweeper After a source module is connected to the sweeper via the SOURCE MODULE INTERFACE connector the sweep will automatically configure itself for source module operation when the line power is cycled when the sweeper is preset or when a register is recalled 4 2 ...

Страница 50: ...up for using a millimeter head with your HP 83751B or HP 83752B 1 Turn the sweeper line power off and connect the equipment as shown in Figure 4 1 2 Turn the sweeper on and press fjPRESET 3 The sweeper automatically configures itself for source module operation when the EE key is pressed 4 3 ...

Страница 51: ...sing millimeter heads with B model SOURCE MODULE I NTERFACE RF OUTPUT I NTERFACE EXTENDER CABLE ADAPTER IF REQUIRED MM WAVE SOURCE MODULE high power sweepers LEVELED OUTPUT pg420ab Figure 4 l Millimeter wave Source Module leveling 4 4 ...

Страница 52: ...with your HP 83751A or HP 83752A An external amplifier is required to obtain maximum specihed power 1 Turn the sweeper line power off connect the equipment as shown in Figure 4 1 2 Turn the sweeper on and press EE EQ 3 The sweeper automatically configures itself for source module operation when the PRESET_ key is pressed 4 5 ...

Страница 53: ... P T E R IF REQUIRED MICROWAVE A M P L I F I E R RF IN Wd WAVE S O U R C E MODULE b LEVELED OUTPUT Figure 4 2 Millimeter wave Source Module leveling Using a Microwave Amplifier See also To obtain flatness corrected power refer to Creating User Flatness Correction Arrays later in this section 4 6 ...

Страница 54: ...5 Creating User Flatness Arrays I ...

Страница 55: ...ion arrays which calibrate the power level at a remote test port Two examples are provided l The first example shows the basic setup and steps to create a user flatness array l The second example shows how to set up a scalar analysis measurement using a user flatness correction array 5 2 ...

Страница 56: ...up shown assumes that if the setup has an external leveling configuration that the steps necessary to correctly level have been taken Refer to Chapter 2 Externally Leveling the Sweeper for information on external leveling ALC I N I RF I OUTPUT I 1 INPUT 1 PORT I I I I CAmEs I d A N D O T H E R i DO ICES IFLATNESS CORRECTED OUTPUT TEST PORT 0 uq J N i l tE E P O W E R S E N S O R T E S T Figure 5 1...

Страница 57: ... a 6 dB loss from the leveling point to the remote test port enter a power offset of 6 dB 4 Set the power level to the level desired at the test purt by pressing POWER LEVEL and entering the desired number 5 Select ml SPECIAL 112 jj Use the j J keys to select the type of power meter you will be using 437B for this example 6 Select SHIFT SPECIAL 113 w Enter the HP IB address of the power meter you ...

Страница 58: ...i to start the calibration The display will show each correction point s frequency and power as it is measured l When the calibration is finished the flatness correction is automatically turned on and the FLTNESS ON LED annunciator is lit on the front panel of the sweeper Power correction will be linearly interpolated between the measured correction points The POWER display will now show the test ...

Страница 59: ......

Страница 60: ...ess iYWj OFFSET in the POWER key group and then enter the nominal loss from the leveling point of the sweeper to the test port For example if there is a 6 dB loss from the leveling point to the remote test port enter a power offset of 6 dB 5 Set the power level to the level desired at the tat port by pressing POWER LEVEL and entering the desired number 6 Select iiF SPECIAL 12 HZ S ENTER_ Use the Q...

Страница 61: ...wer meter 3 Enable the power meter sensor cal factor array For operating information on the HP 437B power meter refer to its operating and service manual 4 Connect the power sensor to the point where corrected power is desired See Figure 5 2 To start the user flatness cal 1 On the sweeper press m FLTMESS CAL a Select whether to calibrate over St arSt op correction points will be linearly spaced ov...

Страница 62: ...weeper Power correction will be linearly interpolated between the measured correction points 4 Save the calibration by pressing CsAVEJ iJ on the sweeper Attention If the calibration is not saved in an instrument register and the sweeper or analyzer is preset a register is recalled or the power offset is changed the calibration will be lost Reactivating the SYSINTF on the analyzer will also cause a...

Страница 63: ...I I 6 Operating a Master Slave Setup ...

Страница 64: ...lement master slave operation configure the sweepers as shown in Figure 6 l The master sweeper generates the 10 MHz frequency reference for both sources The source synchronization cable HP part no 83750 60059 must be connected between the auxiliary interface connectors on the rear panels of the sweepers When conEguring a two tone measurement system the slave does not need to interface with any ins...

Страница 65: ...OURCE SYNCHRO NIZATION CABLE pg424ab Operating a Master Slave Setup e AUXILIARY I 10 MHz INTERFACE I REF OUT SLAVE SYNTHESIZED SWEEPER AUXILIARY INTERFACE 10 MHz REF IN Figure 6 l Master Slave Setup 6 3 ...

Страница 66: ... differ more than 5 GHz at any point in the sweep If this requirement is not met it is possible for unlocks to occur If frequency offsets greater than 5 GHz are required it may be necessary to reduce the sweep speeds to eliminate unlocks 4 Set the desired power level using the POWER LEVEL key For swept measurements 5 Set the desired sweep time using the TIME key The recommended minimum sweep time ...

Страница 67: ...hen pressing the key until the display reads Si Jeep St ep lzt tr t 7 Set the number of points by pressing iE POINTS and entering the desired number of points N O T E The master and slave sweepers must have identical sweep mode number of points and sweep time settings Therefore the values entered here must also be entered into the slave sweeper 6 5 ...

Страница 68: ...cur If frequency offsets greater than 5 GHz are required it may be necessary to reduce the sweep speeds to eliminate unlocks 4 Set the desired power level using the POWER LEVEL key For swept measurements 5 Set the sweep time to the same value as the master sweeper using the m key The recommended minimum sweep time for master slave mode is 100 ms For stepped measurements 6 Set the sweep mode to ste...

Страница 69: ...See also For a pinout description of the source synchronization cable see the Multi pin Connectors section of Chapter 7 Front Rear Panel 6 7 ...

Страница 70: ...I 7 Front Rear Panel ...

Страница 71: ...tains detailed information on various aspects of the sweeper front and rear panel Information on the following can be found in this chapter 0 Connectors l Display l HP B Lang Address Switch l Knob l Line Power Switch l Power Cables 7 2 ...

Страница 72: ...Connectors 0 0 I 0 0 0 0 0 0 0 a 0 0 LJLJ 00 00 00 0 0 0 El0000 00000 moooo Cl 0 l a l30000 0 Q I I L SWEEP OUT ALC IN RF OUTPUT pg412ab Figure 7 1 Sweeper Connectors Front Panel 7 3 ...

Страница 73: ...PT lE4 ONLY I OUTPUT I SWEEP I N OUT FM INPUT AUX I I NTE LIARY DIARY HP IB HPllB VOLTS GHz AM VOLTi GHz A M TRIGGER TRIGGER TRIGGER TRIGGER 1OMHz 1OilHz 1OMHz 1OivlHz RFACE RFACE OUTPUT OUTPUT INPUT INPUT OUTPUT OUTPUT INPUT INPUT REF OUT REF OUT REF IN REF IN pg413ab Figure 7 2 Sweeper Connectors Rear Panel 7 4 ...

Страница 74: ... is used for external power meter leveling or external negative detector leveling The damage level is f15 V The nominal input impedance is 100 kQ This rear panel female BNC connector accepts the amplitude modulating signal input when External AM is enabled The nominal input impedance is 3 5 kQ The damage level is f15 v This rear panel female BNC connector accepts the frequency modulating signal in...

Страница 75: ...voltage is a percentage of the span The nominal output impedance is 100 61 The typical accuracy is f0 05 f5 mV into a high impedance load When used with the HP 8757D scalar analyzer in ramp sweep mode the rear panel output is a series of 0 to 10 V pulses similar to the Trigger Output This rear panel female BNC input is activated on a TTL rising edge It is used to externally initiate an analog swee...

Страница 76: ...nector supplies a positive BLANK MKRS rectangular pulse approximately 5 V into 2 kfl during the retrace and band switch of the RF output when the instrument is sweeping This output also supplies a 5 V pulse when the RF output is coincident with a marker frequency 7 7 ...

Страница 77: ...signals used in master slave interface operation with another source and in other special purpose applications This connector is a 25 pin D subminiature receptacle located on the rear panel AUXILIARY INTERFACE SOURCE SYNCHRONIZATION CABLE H P P N 8 3 7 5 0 4 0 0 5 9 Figure 7 3 Auxiliary Interface Connector 7 8 ...

Страница 78: ... I O TTL 9 External Trigger In TTL 10 Rear Panel Control 1 I O TTL 1 1 Rear Panel Control 0 I O TTL 1 2 low Retrace I O TTL 13 Alternate Sweep In In TTL 14 Low Marker out TTL 15 Low Clualified Stop Sweep out rr 16 Rear Panel Control 4 out TTL 17 Rear Panel Control 2 I O TTL 18 Sweep Output out 0 to 10 V ramp 19 Digital Ground Gnd 20 No Connection 21 No Connection 22 No Connection 23 low Source Set...

Страница 79: ...e interface bus Details of this cable are shown in Figure 7 4 HP part numbers for various HPIB cables that are available are shown in the table following the figure H P I E SHl AH1 TE LELo4 SRl RL 1 PPO DC1 DC1 COl 3 28 El 07 24 12 4 13 1 0 pg415ob Figure 7 4 HP IB Connector and Cable HP IB Interface Cables Available 7 10 ...

Страница 80: ... BDDRESS in the Instrument State Keys chapter for information on setting the sweeper HP B address l In a two instrument system that uses just one HP B cable the cable length must not exceed 4 meters 13 2 ft l When more than two instruments are connected on the bus the cable length to each instrument must not exceed two meters 6 6 ft l The total cable length between all instruments must not exceed ...

Страница 81: ... capability L4 Listener capable of basic listener and unaddress if MTA LEO Listener Extended address no capability SRl Service Request complete capability RLl Remote Local complete capability PPO Parallel Poll no capability DC1 Device Clear complete capability DTl Device Trigger complete capability CO 1 2 3 28 Controller capability options CO no capabilities Cl system controller C2 send IFC and ta...

Страница 82: ... MOD Dl DIG GND EXT LVL COAX 15v RESERVED pg416ot Figure 7 5 Interface Signals of the Source Module Connector The codes indicated in Figure 7 5 translate as follows MOD DO Source module data line zero Signals MOD DO through MOD D3 are the millimeter source module data bus lines bidirectional MOD Dl Data line one MOD D2 Data line two MOD D3 Data line three MOD CO Source module control line zero Sig...

Страница 83: ... GHz to the millimeter source module Power supply Range is 14 25 to 15 45 V See note below Power supply Range is 14 25 to 15 45 V See note below Power supply Range is 7 50 to 8 45 V See note below Power supply Range is 4 75 to 5 40 V See note below N O T E The values for the four power supplies above are valid when a millimeter head is connected With no load on the connector the values would be 15...

Страница 84: ... making connections to this connector carefully align the center conductor elements then rotate the knurled barrel while mating components remain still Tighten the barrel until Iirm contact is made lkke care when working with this connector If the connector is mechanically degraded in any way high frequency losses can occur Refer to application note 326 Coaxial Sz stems Principles of Microwave Con...

Страница 85: ...Sweep Status and Power for displaying the current operating parameters of the sweeper Front panel annunciators show the status of several of the sweeper functions and settings FREQUENCY DISPLAY MARKER SWEEP STATUS D I S P L A Y POWER DISPLAY pg410pb Figure 7 6 Sweeper Display 7 16 ...

Страница 86: ...frequency unit kHz MHz or GHz The decimal multiplier is changed automatically to keep the number being displayed in the range of 1 to 999 99999 and digits below 1 kHz resolution are not shown Leading zeros are suppressed In CW mode there is one 24 character field Frequencies are displayed using up to 11 significant digits followed by a three character frequency unit Hz MHz or GHz The decimal multi...

Страница 87: ...d MARKER SWEEP STATUS and is used to show a variety of information including marker frequencies sweep time and general instrument status Sixteen characters are reserved for this Eeld including any units displayed The right Eeld is labelled POWER and displays the power level in dBm It is seven character cells wide Exed format N O T E I 7 18 When operating the sweeper in a secure environment the dis...

Страница 88: ...s not visible if its associated function is not active or selected For example if external pulse modulation is currently selected the EXTMOD annunciator will be lit otherwise it will not be visible The display annunciators that will appear in the left hand frequency display are SHIFT START CF CW MAN SWEEP EXT REF ALT STOP SPAN MULT and OFFSET The display annunciators that will appear in the right ...

Страница 89: ...s off when a Gi START or ISTOP is pressed This annunciator indicates that manual sweep mode has been selected This annunciator indicates that the instrument is performing a sweep This annunciator appears only while the instrument actually sweeps not while it waits for a trigger signal even though it is in sweep mode In continuous sweep mode the annunciator will blink with slow sweeps but remain on...

Страница 90: ... or 1 kHz square wave This annunciator appears when any of the internal synthesizer loops are unlocked This annunciator indicates that the Sweep Mode is set to Stepped Sweep This annunciator indicates that automatic coupling between the attenuator and the ALC reference level is turned off in the Special area For Option 1El instruments only This mode is automatically selected whenever the ALC mode ...

Страница 91: ... LED annunciator is lit when the sweeper is transmitting information over HP IB This LED annunciator is lit when the sweeper is receiving an SRQ over HP IB This LED annunciator is lit if the marker delta mode is on This LED annunciator is lit when MI MP SWEEP is pressed UNLOCKED FM This LED annunciator is lit if the FM mode is set to DC Unlocked FLTNESS ON This LED annunciator is lit if a power fl...

Страница 92: ...default to a particular address at power up set the switch to the desired address you can still make changes from the front panel but they won t be retained through a power cycle Refer to Figure 7 9 for a pictorial explanation of the switch settings for instrument language Refer to Figure 7 10 for a pictorial explanation of how to set the switch for clearing the register contents at power on SELEC...

Страница 93: ...I Figure 7 9 Instrument language Switch Settings 1 111 1 I 1 0 R e g i s t e r C o n t e n t s A r e Saved Through An AC Power Cycle R e g i s t e r C o n t e n t s A r e C l e a r e d Through An AC Power Cycle Figure 7 l 0 Clear Register Contents Settings 7 2 4 ...

Страница 94: ...g Address Switch See Also Instrument For information on setting the HP IB address from the front State Keys panel of the sweeper Special Functions For information on setting the language from the front panel of the sweeper 7 25 ...

Страница 95: ...r the step keys can also be set using the knob However the rate at which the active parameter varies for a given amount of knob rotation is dependent on the parameter that is being controlled If ENTRY OFF m HZ S E N T E R has been enabled the pointers will disappear from the display and rotating the knob will have no affect on the sweeper parameters until another function key is pressed Equivalent...

Страница 96: ...at the bottom left corner of the front panel Pressing the switch so that the button locks in the in position turns the sweeper on and pressing the switch again so that it is in the out position turns it to standby When set to standby most of the sweeper circuitry is powered off however power to the internal timebase Option lE5 is not disconnected When the sweeper is on the green LED indicator will...

Страница 97: ... grounded through the protective conductor of the power cable to a mains power receptacle provided with protective earth contact Any interruption of the protective grounding conductor inside or outside of the sweeper or disconnection of the protective earth terminal can result in personal injury 7 28 ...

Страница 98: ...ipped with each instrument depends on the country of destination See Figure 7 12 Power Cable and Line Mains Plug Part Numbers for the part numbers of these power cables Cables are available in different lengths and some with right angle plugs to the instrument Check with your nearest Hewlett Packard service center for descriptions and part numbers for these cables N O T E There is no line voltage ...

Страница 99: ...1521 90 8 1 2 0 4 7 5 4 9 0 8120 5182 S t r a i g h t NEMA5 15P 8 1 2 0 5 1 8 1 90 2 0 1 7 9 M i n t G r a y E a s t a n d W e s t 2 0 1 7 9 M i n t G r a y Europe Central A f r i c a n R e p u b l i c U n i t e d A r a b R e p u b l i c unpclorized i n m a n y n a t Ions 2 0 3 8 0 B l o c k U n i t e d S t a t e s 2 0 3 80 B l a c k Canada J a p a n 1 0 0 V o r 2 0 3 8 0 Jade Gray 200 v Bra2 II 2...

Страница 100: ...I 8 Instrument State Keys ...

Страница 101: ...ser dehned Preset instrument state The current instrument state is also saved continually in another register All 11 registers are battery backed up and contain the factory defined preset values until overwritten by other data When power is turned on the instrument performs some self tests and then returns to the last state before power was turned off The current firmware revision language mode an...

Страница 102: ...As an example note that ADDRESS appears in blue text directly above the jZ XiJ key Viewing and selecting the HP lB address of the instrument is the secondary function of the LOCAL key Pressing CSHIFT LOCAL will enable the HP lE3 address viewing and selecting mode lf a key with no alternate function is pressed after pressing the m key the SHIFT annunciator will be canceled from the display and no a...

Страница 103: ... Center Frequency Preset Mode Factory when shipped1 Dwell Coupling Off Pulse Mode Mod Off Dwell Time 1 ms Pulse Period 1 000 ms External Cal Coup Factor 16 0 dB Pulse Width 1 0 0 s Flatness Cal Over Start Stop RF On Off On Flatness On Off Off Single Trigger Off FM Mode Off Slope 0 00 dB GHz requency Multiplier 1 Span 18 GHz or 19 99 GHzt requency Offset 0 Hz Start Frequency 2 GHz or 1 0 MHzt iP IB...

Страница 104: ...he sweeper The mode can be changed by pressing the J keys or by turning the front panel knob The preset mode choices are Factory When C J is pushed the instrument is returned to a factory defined state See fable 8 l in this section The right hand display shows Sl sPt esTl pe FHCT When KY is pushed the instrument is returned to a user dehned state The right hand display shows l sPt sTl pe l EH Asso...

Страница 105: ...ument into multiple registers Pressing has no effect SAV Cn Associated SCPI Commands Saves the instrument state into regkter c 0 SV n Associated 8350 Commands SaEs the instrument state into register cc SAVE When this function is selected by pressing SHIFT SAVE_ the current PRESET instrument state is saved into the user defined preset storage register The right hand display shows Preset Saued N O T...

Страница 106: ...efined preset cannot be recalled until User preset is selected using the PRESET MODE function described earlier in this chapter Associated SCPI Commands SYSTem PRESet SAVE Saves the current instrument state into the userdefined preset storage regktel 8 7 ...

Страница 107: ...state of the instrument from register 00 SPECIAL When this function is selected by pressing SHIFT ZZXLiI the special functions menu is accessed When this key is pressed the last used special function is displayed in the form number function If no special functions have been accessed since the instrument was last preset the last used special function will default to 1 13h F HUTI I The a keys or the...

Страница 108: ... discrete states i e On Off or Int Ext None then the j J keys or the front panel knob must be used to select the desired state If the special function is a numericaI value then the keypad may also be used to enter the value See Also Chapter 15 Special Functions 8 9 ...

Страница 109: ... 30 with the default value being 19 Notes 1 An HP IB address entered from the front panel will nor change when PRESET is pressed 2 If the power to the instrument is cycled or lost the address entered from the front panel will survive on y if the rear panel HP IB switch is set to 31 otherwise after a power cycle or loss the HP IB address will default to the rear panel switch setting Associated SCPI...

Страница 110: ... you to select one of the instrument states from registers l 9 to be alternated with the current instrument state on each successive sweep N O T E The alternate sweep function cannot be used with stepped sweep mode I When this function is selected the ALT annunciator is turned on and the prompt message in the MARKER SWEEP STATUS display is HLT SI Reg At this time the instrument expects a register ...

Страница 111: ...ng is used and the MSG annunciator is lit and an error message is displayed Associated SCPI Commands SYSTem ALTernate n S cts the instrument state in register n as the lktrument state to be afternated wkh the current state SYSTem ALTernate STATe ON Turns on the alternate sweep function SYSTem ALTernate STATe OFF Turns off the alternate sweep function AL1 Cn Associated 8350 Commands Turns alternate...

Страница 112: ...I 9 Marker Keys ...

Страница 113: ...de the values of all of the markers are set to the center frequency of the instrument s frequency range When a marker is first turned on its initial value will be either the preset value or the last value it was set to If a marker has been previously set to a value outside the range of the current sweep its value does not change when it is turned on even though it may not be observed on a network ...

Страница 114: ...earest to the entered number A marker may be on in either Sweep mode or in CW mode but markers affect the output level Amplitude markers or the Z MOD output Intensity markers only when the instrument is in Sweep mode Markers do not produce these effects when the instrument is in CW mode The active marker is a marker that is turned on and whose frequency was most recently shown in the MARKER SWEEP ...

Страница 115: ... If Marker A Mode is on the frequency diff znce between the active marker and the A Reference marker is displayed in the format Mm t sign disit s lnit s where n is the active marker and r is the number of the A Reference marker Five signilicant digits can be displayed Units can be kHz MHz or GHz When Marker A Mode is on the frequency of the active marker is still entered directly from the keyboard...

Страница 116: ...The mode can be changed to the next choice by pressing the J keys or by selecting FiiFi MKR MODE again The marker output format choices are Amplitude In this mode the on markers appear as a rise of about 1 dl3 in the output power The displayed message is Mat 1 et s Rpjp 1 it IJS Intensity In this mode the on markers appear as a 5V pulse at the Z AXIS BLANK MKRS rear panel output connector The disp...

Страница 117: ...ted SCPI Commands MARKer AMPLitude STATe ON Sehcts marker amplitude mode MARKer AMPLitude STATe OFF Seiacts marker intensity mode AK1 AK0 Associated 8350 Commands Selects marker amplitude mode Selects marker intensky mode 9 6 ...

Страница 118: ...off if Marker A Mode is turned on The MKRS annunciator is turned off only if all the markers are off Associated Commands MARKerhI STATe OFF Turns marker n ofi M n MO Associated 8350 Commands Turns marker co ofi ALL QFF This function turns off ah the markers regardless of the active parameter The instrument then returns to the same state as if FZG had just been pressed displaying M On The MKRS annu...

Страница 119: ...and MARKer MODE is set to DELTA l The A reference marker is turned on and cannot be turned off while Marker A mode is on l If no marker was the active marker since the last time preset_ was pressed M2 becomes the default active marker If marker A mode is on when this key is pressed the following things happen l The mode is turned off l the active marker becomes the active parameter displayed in th...

Страница 120: ...r which is displayed in the MARKER SWEEP STATUS area The A Reference Marker is turned on if Marker A Mode is turned on The display is in the format Mk I De 1 t CI R n If a number O 9 is entered from the keyboard the Cm key must be used to terminate the entry If no other marker has been selected Ml is the default A Reference Marker Associated SCPI Commands MARKer n REFerence n Sets marker n as the ...

Страница 121: ...10 Modulation Keys ...

Страница 122: ...p AM and FM modulation is obtained by means of an external signal being applied to the rear panel AM INPUT or FM INPUT BNC connectors There are 2 FM modes AC locked and DC unlocked N O T E In the DC unlocked mode frequency accuracy will he degraded as a result of the synthesizer being bypassed 10 2 ...

Страница 123: ...rator or preset to either a 1 kHz or a 27 kHz square wave When external pulse is selected the instrument is modulated by a signal present on the PULSE IN OUT connector on the rear panel When external modulation is enabled the EXT MOD annunciator is turned on When internal modulation is enabled the INT MOD annunciator is turned on 10 3 ...

Страница 124: ...an internal pulse generator For CW mode below 500 MHz or Swept mode below 2 GHz minimum leveled pulse width is degraded The INT MOD annunciator is turned on The displayed message is F u 1 se I t h ema 1 ln this mode pulse modulation is from the rear panel PULSE IN OUT BNC connector For CW mode below 500 MHz or Swept mode below 2 GHz minimum leveled pulse width is degraded The EXT MOD annunciator i...

Страница 125: ...rns square wave modulation on Turns square wave modulation ofi PEEtIOD When this function is selected by pressing SHIFT PULSE MODE jt the pulse period becomes the active parameter This parameter applies to the internal pulse mode Its value is shown in the MARKER SWEEP STATUS display in the format pm iod diqits unit s Units canbe ps orms The range of accepted values is 2 LJS to 65 53 ms Resolution ...

Страница 126: ... EXT MOD annunciator is turned on The displayed message is AM E t ep ri 3 1 Associated SCPI Commands AM STATe ON Turns external AM modulation on AM STATe OFF liuns external AM modulation oftI WIDTH When this function is selected y pressing SHIFT AM MODE ft the pulse width becomes the active parameter This parameter applies to the internal pulse mode Its value is shown in the MARKER SWEEP STATUS di...

Страница 127: ...user is cautioned that the low frequency deviation is limited in this mode to approximately 25 times the rate of the signal The front panel EXT MOD annunciator is turned on The displayed message is FM HC Lcd 4 DC Unlocked In this mode the RF output signal is not s thesized and FM external FM modulation is enabled with a bandwidth that is dc coupled In this mode the RF frequency accuracy and residu...

Страница 128: ...11 Frequency Keys ...

Страница 129: ...inated using one of the four frequency unit keys m LMHz CkHz or KJ When the entry is terminated the display shows the new value autoranged to the appropriate units For Start Stop and CF Span Sweep modes the frequency values are shown on the left and right sides of the FREQUENCY display in the format digits units Units can be either MHz or GHz Leading zeros are suppressed For CW mode the frequency ...

Страница 130: ...ncies are dependent upon the model number of your sweeper and are documented in the SpeciEcations and Options chapter of this manual The instrument can only sweep up in frequency therefore the STOP frequency cannot be less than the START frequency If a start frequency is entered which is greater than the stop frequency then the stop frequency becomes equal to the start if a stop frequency is enter...

Страница 131: ...ODE SWEep Sets the instrument to sweep mode FREQuency STARt num suffix Sets the Stan fiequenq to the desired value Associated 8350 Commands FA num suffix Sets the sta t frequency to the desired value OFFSET When this function is selected by pressing sHlFTl START the frequency offset becomes the active parameter displayed in the MARKER SWEEP STATUS area If the offset frequency is not zero the OFFSE...

Страница 132: ...FSet mm Sets the frequency offset to the desired value FREQuency OFFSet STATe ON Turns the frequency offset on FREQuency OFFSet STATe OFF firns the frequency offset ofi Associated 8350 Commands SHFB num suffix Sets the kequency offset to the desired value 11 5 ...

Страница 133: ...ttempting to set the stop frequency below the start frequency causes the start frequency to decrease The stop frequency is always coupled to a previously set CF and Span by the equation STOP CF SPAN 2 N O T E Although the sweeper is only specified to 20 GHz the stop frequency can be set as high as 20 5 GHz Associated SCPI Commands FREQuency MODE SWEep Sets the instrument to sweep mode FREQuency ST...

Страница 134: ...tiplier value is displayed in the format MLILT I PL I ER d i q i t s The value must be an integer between 1 and 36 There are no units The multiplier function can be turned off by selecting lsHlFTJ MULT again or by setting the multiplier to 1 Associated SCPI Commands FREquency MULTiplier mm Sets the fiequenq mult er to the desired value FREC uency MULTiplier STATe ON Turns the frequency mult Ler fu...

Страница 135: ... and stop frequencies by the equation CF START STOP 2 Associated SCPI Commands FREquency MODE SWEep Sets the instrument to sweep mode FREquency CENTer num suffixl Sets the canter frequency to the deslied value Associated 8350 Commands CF num suffix Sets the canter frequency to the desired value MKR C F When this function is selected by pressing SHIFT CF the center frequency becomes the value of th...

Страница 136: ...value that would put one end of the sweep beyond the legal range of the start and stop frequencies then the center frequency is adjusted so that the end of the sweep is a valid frequency while keeping the span the same The span frequency is always coupled to previously set start and stop frequencies by the equation SPAN STOP START Associated SCPI Commands FREquency MODE SWEep Sets the instrument t...

Страница 137: ...ed to them depending on whether CWKF Coupling is turned on or off CWXF coupling is turned off in the factory preset condition When coupling is turned on CW CF To turn on CWKF coupling Press key s SHIFT SPECXAL iJ Hz sIENTER GD Display reads Last special function accessed iI i i f AlAt o OFF 1 I 1 f H IA t 0 0 1 1 Associated SCPI Commands FREquency MODE CWlFIXed Sets the instrument to CW mode FRECj...

Страница 138: ...ar panels This mode allows power sweep and power slope in CW mode Associated SCPI Commands FREQuency MODE SWEep Sets the instrument to sweep mode FREQuency CW FIXed AUTO ONIOFF Turns CW CFcooplng an or OK FREQuency CWlFIXed num suffix Sets CWto the desired fiequenq FREQuency SHCW num suffixl Sets swept L W to desired fiequenq Associated 8350 Commands SHCW num suff ix1 Turns swept CW on 11 11 ...

Страница 139: ... stop frequency The START STOP CF and SPAN values are coupled with markers Ml and M2 That is any change in the values of START and STOP frequency will directly alter the values of markers Ml and M2 and vice versa If the frequency of marker Ml or M2 is the active parameter displayed in the MARKER SWEEP STATUS area and if its value is changed or if new START STOP CF or SPAN frequencies are entered t...

Страница 140: ...re previously off Also if Ml M2 Sweep mode is on it will be automatically turned off when this function is selected N O T E If the value of Ml is greater than the value of M2 the values will be interchanged when they are put into the start and stop frequencies However the values stored in Ml and M2 will not change Associated SCPI Commands SWEep MARKer XFER Transfers values of Ml and I to the start...

Страница 141: ...12 Sweep Keys ...

Страница 142: ...cted the number of bandswitches required the time required for each bandswitch and retrace settling times In addition there is a manual sweep mode in which the sweep position can be continuously adjusted over the start stop range as determined by the front panel manual control Manual sweep mode operates independently of whether analog or stepped mode is selected The instrument has only one sweep g...

Страница 143: ... T E The SWEEP annunciator is on all the time during fast sweeps and cycles on and off for slower sweeps however it is not necessarily an accurate indicator of when the instrument is actually in a forward sweep 12 3 ...

Страница 144: ...mpared to this limit even after the frequency range is readjusted If the entered value is less than the limit then the limit value is used and if the entered value is greater than the limit then the entered value is used The Sweep time is displayed as SweepTime digit s Unit s The dwell time is displayed as Dc lellTi le digit s l_rrlit s Units can be either ms or s Step size cannot be set for sweep...

Страница 145: ...pressing SHIFT YiL turns the manual sweep mode on Depending on what parameter is being swept frequency power or sweep position can be varied manually over the limits defined by start stop power sweep etc The MAN annunciator is turned on To turn manual sweep mode off the m key must be pressed If frequency is being swept manually the current frequency is displayed as the active parameter in the MARK...

Страница 146: ...MANual Sets the instrument to manual sweep mode FREQuency MANual num suffix Sets the manual Irequenq to the desired value SWEep MANual RELativel nun0 Used for power sweep Associated 8350 Commands SM num suffix Sets the instrument to manual sweep 1 2 6 ...

Страница 147: ...RIGGER INPUT There will be about 1 ms of delay between the positive edge and when the sweep actually starts The displayed message is 51 1p Tt i g E t et r N O T E External Trigger mode will not work if Step Sweep External Trigger mode is selected Single Trigger In this mode the sweep is initiated when the user presses SINGLE TRIG or by the HP lB bus The displayed message is I IP Tt i mg s i rq 1 e...

Страница 148: ...mode is enabled The display shows Sweep Fin 3 1 og Step SweepXont Trig In this mode stepped sweep mode is enabled After dwelling at each point the sweep steps to each new point as soon as possible The STEP annunciator is turned on The display shows eep t ep Cont N O T E Stepped sweep mode cannot be used with the alternate sweep mode ALT or I or External Trigger mode Step In this mode stepped sweep...

Страница 149: ...SWEep GENerationSTEPped Sets the sweep mode to stepped SWEep TRIGger SOURce IMMediate Sets the instrument to internal tr ger as soon as possibb after the last tr geL SWEep GENerationSTEPped Sets the sweep mode to stepped SWEep TRIGger SOURce EXTernal Sets the instrument to externally tr ger a step 1 2 9 ...

Страница 150: ...a stepped sweep When this key is pressed the number of points becomes the active parameter and is displayed in the MARKER SWEEP STATUS display in the form 3 eepF c1 i rd 5 XXX The acceptable range of values is 2 to 1601 The total forward sweep time in stepped sweep mode can be computed from the equation SweepTime NumberofPoints DwellTime SwitchingTime where Switching Time is typically 7 ms 8ms GHz...

Страница 151: ...13 Power Keys ...

Страница 152: ...S i ON OFF pg47ab Figure 13 l The Power Group The power functions are displayed in the right hand display either in the MARKER SWEEP STATUS area or in the POWER area as described for each function Units are not autoranged and are given below for each function 13 2 ...

Страница 153: ...e desired value Associated 8350 Commands PL Quun suffixl Sets the power k vel to the desired value OFFSET Selecting this function by pressing SHIFT POWER LEVEL adjusts the POWER display to make it agree with the RF power at a remote location When this key is pressed power offset becomes the active parameter displayed in the MARKER SWEEP STATUS area If the power offset is not zero the POWER display...

Страница 154: ...esolution is 0 1 dB The power offset function citn be turned off by selecting iYiE OFFSET again or by setting the power offset to 0 0 dB Associated SCPI Commands POWer OFFSet Qmm DB1 Sets the power offset to the desired value 1 3 4 ...

Страница 155: ...itive or negative value may be entered The power must remain within the ALC leveling range and may not cross an attenuator boundary The value of power at the start of the sweep will be displayed in the POWER area and will be automatically varied if necessary to keep the power within the ALC leveling range The display format is F wt C I IIX XX ME Resolution is 0 1 dB Associated SCPI Commands POWer ...

Страница 156: ...annunciator is turned on A positive or negative value may be entered The power must remain within the ALC leveling range and may not cross an attenuator boundary The value of power without power slope correction i e at 0 Hz is displayed in the POWER area The display format is Slips X X dEvGHz Resolution is 0 01 dE The power slope function can be turned off by selecting SHIFT SLOPE again or by sett...

Страница 157: ...pproximately 1 dB change in output power The displayed message is HLC l_ln 1 Y w l N O T E If your sweeper has option 1El add step attenuator the ALC and the attenuator are uncoupled when your sweeper is in the following ALC modes This will be indicated to you by the front panel display annunciator UNCPLD I I External Diode The ALC point is fed from an external diode detector This Leveling mode re...

Страница 158: ...h a millimeter head connected Associated SCPI Commands POWer ALC SOURce INTernal POWer ALC STATe ON POWer ALC SOURce DIODe Sets the ALC mode to internaL Turns ALC on Sets the ALC sour sebtion swkch to external detector Swing POWer ALC SOURce PMETer Sets the ALC source selection swkch to external power meter leveing POWer ALC SOURce MMHead Sets the ALC source se on swkch to ekternal mflimeter head ...

Страница 159: ...gree with the POWER display This function affects only the RF output power by offsetting the ALC reference voltage it does not affect the POWER display When this function is selected the coupling factor becomes the active parameter displayed in the MARKER SWEEP STATUS area of the display The display format is Coup Fact XX XdB A coupling factor between 30 dB and 30 dB can be entered Associated SCPI...

Страница 160: ...ON OFF initiates a calibration sequence which calibrates the power level at a remote test port using an external power meter Power correction values relative to frequency are measured and stored into a user flatness correction array The MARKER SWEEP STATUS display is used to prompt the user Before pressing this key the user should refer to the Creating User Flatness Arrays chapter in this manual f...

Страница 161: ...14 Entry Keys ...

Страница 162: ...Entry Keys pg48ab Figure 14 1 The Entry Group 14 2 ...

Страница 163: ...fset Settable Frequency Step Size HP IB Address Fixed 6 M a n u a l S w e e p F r e q Settable Frequency Step Size Marker I J Ref Fixed 1 Marker Frequency Settabla Frequency Step Size Points Fixed 1 2 5 Sequence Numeric Parameter Fixed1 Step Size vt Settable Power Level Settable Power Step Size Power Offset Sattable Power Step Size Power Sweep Settable Power Step Size Pulse Period Fixed 1 2 5 Sequ...

Страница 164: ...here crnil s identifies both the type and magnitude of the step For frequency step size the possible units are Hz kHz MHz and GHz For power step size the only possible unit is dl3 If the 0 J keys are used while step size is the active parameter the step size will be increased or decreased in a 1 2 5 sequence Associated SCPI Commands FREQuency STEP INCRementl Sets the frequency step J I to be num s...

Страница 165: ...ackspace key removes the last character in the string The negative sign when legal toggles the sign of the number being entered N O T E When numeric keys are pressed the display shows the new value of the active parameter as it is being entered however the units are not displayed and the actual parameter value is not updated until a unit key or the CHz s ENTER key is pressed 1 4 5 ...

Страница 166: ...nit keys serve as terminators for active parameter values being entered from the keypad They consist of LGHz also used for dE m and dl3 CMHz also used for ps IkHz also used for ms and C 1 used for Hz V s and unitless values 14 6 ...

Страница 167: ...les the RF output state If the output is off the RF OFF annunciator in the right hand display is turned on Associated SCPI Commands POWer STATe ON Turns RF on POWer STATe OFF Turns RF off RF1 RF0 Associated 8350 Commands Turns RF on lirns RF ofi 1 4 7 ...

Страница 168: ...Entry Keys These functions selected by pressing the SHIFT key and then the m or j key are only used for certain service related procedures They are not used during normal front panel operation 14 8 ...

Страница 169: ...ameter is de activated and the MARKER SWEEP STATUS display is blanked All keys in the Entry area are disabled except for TON OFF including the numeric pad the f J sTEPI keys and the front panel knob When another key is pressed that function becomes the active parameter and the Entry area is enabled 14 9 ...

Страница 170: ...either connected in a 50 Q system or has a load on it such as a power sensor or attenuator C A U T I O N For optimum power at all frequencies do not run peak power tracking with a millimeter head connected to the sweeper While the peaking is in progress the message Tt ad i ng x xx GHz will be displayed in the MARKER SWEEP STATUS area Note that autotracking will take typically a minute or longer to...

Страница 171: ...I 15 Special Functions ...

Страница 172: ......

Страница 173: ...the front panel knob must be used to select the desired state If the special function is a numerical value then the keypad may also be used to enter the value If the keypad is used to enter a value the value must be terminated with one of the units keys Pressing the cc key after a parameter has been viewed or changed returns you to the main menu and you can then scroll through the special function...

Страница 174: ...splay Factory Preset Description After pressing Value Condition CHz s ENTER C W P E A K N G pp sk irig SWPTIME AUTO Tirqe H1 t 11 STEP SWPTIME St p 21 1pT i rqe SWPTIME LLIM TirqeLoLirq A l l COUPLlNGt Ht t era But I I On Off Numerical Numerical On Off On 401 ms 10 ms Ont ATT SETTlNGt Numerical 0 dB The footnotes for lkble 15 1 are listed on the following page 15 4 ...

Страница 175: ...ected to your sweeper See FM SENSITVTY later in this chapter This is the value set when shipped from the factory Changes made via this special function will be retained through en instrument preset Changes made via this special function may or may not be retained through a cycling of the line power depending on how the rear panel language switch is set Refer to the chapter entitled front Rear Pane...

Страница 176: ...on is coupled to the center frequency and any change made to the center frequency is also made to CW However if CW is changed the switch is automatically toggled off and no change is made to the center frequency Associated SCPI Commands FREQuency CWl AUTO ON 7im v CW CF couphg on FREquencyC CWl AUTO OFF Turns CW CF couphg ai7 15 6 ...

Страница 177: ...er so that its passband is centered on the RF output CW peaking is used to obtain the maximum available power and spectral purity and the best pulse and FM envelopes at a given frequency N O T E If the instrument is not in CW or manual sweep mode nothing will happen when Hz s ENTER_ is pressed Associated SCPI Commands CALibration PEAKing EXECute Executes the peaking function 1 5 7 ...

Страница 178: ...ep tune is limited by a 400 MHz ms sweep rate When sweep time auto is on the fastest sweep tune allowed for the frequency span swept is automatically selected When sweep tune auto is off changing frequency span does not change the sweep time Associated SCPI Commands SWEep TIME AUTO ON Turns on sweep time Auto SWEep TIME AUTO OFF Turns off sweep time Auto 15 8 ...

Страница 179: ...with Dwell Time and Points by the equation Step sweep time DwellTime Points Note that the equation does not include frequency switching time As stepped sweep time is adjusted dwell time will be adjusted proportionately At factory preset the dwell time is set to its minimum setting of 1 ms Therefore the stepped sweep time cannot be decreased from its factory preset value unless the number of points...

Страница 180: ...allows you to set the lower limit of the sweep time The LLIM lower limit refers to the fastest sweep rate that the instrument will sweep Performing a preset removes the limit and allows the instrument to sweep at the fastest possible rate 15 10 ...

Страница 181: ...hand display If ATT SETTING special function number 7 is used to set a specilic attenuation the RF attenuator coupling switch is automatically turned off N O T E Since this function applies only to Internal or Unleveled ALC modes the UNCPLD annunciator will light in external ALC mode operation regardless of how the attenuator coupling switch is set N O T E This function is visible with all instrum...

Страница 182: ...0 dB the output power will be decreased by 10 dB Setting a specked attenuation turns the RF attenuator coupling switch off N O T E This function is visible with all instruments but only active in instruments with Option 1El Associated SCPI Commands POWer ATTenuation num DB Sets the RF attenuator to the desired attenuation 15 12 ...

Страница 183: ...ector If there is no external standard connected the instrument will select the optional internal standard Option lE5 if so equipped Or if there is no internal standard the internal 100 MHz VCXO will operate in a free run mode If ROSC SOURCE special function number 9 is used to set the reference to a specihc reference the automatic reference selection switch will be turned off Associated SCPI Comm...

Страница 184: ...rence EXT Sets the sweeper to accept an external frequency standard as its reference NONE Sets the sweeper to free run operation where no frequency standard is used N O T E Selecting INT on an instrument without Option lE5 or EXT without an external reference connected can cause poor frequency accuracy and synthesizer unlocks 15 14 Associated SCPI Commands ROSCillator SOURce INTernal Sets the Ireq...

Страница 185: ...OLTS GHZ OUTPUT connector to the desired value The acceptable range of values for this function is 10 00 V GHz to 10 00 V GHz with 0 50 V GHz being the factory preset value The rear panel output is limited to a 12 V range Associated SCPI Commands CORRection VOLTS SCALe nun Sets the V GHz scale to the desired value 15 15 ...

Страница 186: ... OUTPUT on the rear panel The acceptable range of values for this function is 10 to 10 V with the factory preset value being 0 00 V The rear panel output is limited to a k12 V range Associated SCPI Commands CORRection VOLTs OFFSet nun Sets the V GHz offset to the desired value 15 16 ...

Страница 187: ...37B 438A SCPI 70100A N O T E The default power meter selection from the factory is 4378 If you change to another selection it will not be altered or reset to 4378 by presetting or cycling the line power on the instrument Associated SCPI Commands SYSTem COMMunicate PMETer TYPE Sets the type of power meter expected over the HP B to be used for the power meter durkg sweeper cabbration routines 1 5 1 ...

Страница 188: ...ble values is from 0 to 30 N O T E The value set at the factory is 13 If you change this value it will not be altered or reset to 13 by presetting or cycling the line power on the instrument Associated SCPI Commands SYSTem COMMunicate PMETer ADDRess Sets the HP B address to used for the power meter during sweeper caibration routines 15 18 ...

Страница 189: ...er to the table below for the actual FM sensitivity respective to the source module used Table 15 2 FM Sensitivity When Using Source Modules Source Module Actual FM Sensitivity When Sweeper is Set to 6 MHzlVolt 2 0 MHzlVolt HP 83554 1x21 1 2 MHz 4 0 MHz H P 83555 1x31 1 8 MHziV 6 0 MHz V H P 83556 1x31 1 8 MHz V 6 0 MHz V H P 83557 1x41 2 4 MHzN 8 0 MHz V H P 83558 1x61 3 6 MHz 1 2 0 MHz V Associa...

Страница 190: ...pon the rear panel language selection switch For information on setting the rear panel switch refer to the HP I 3 Switch section of Chapter 7 in this manual or refer to the lnstallafion and Buick Starr Guide for more detailed instructions on setting this switch Associated SCPI Commands SYStem LANGuage SCPI Sets the instrument programming language to SCPI SYStem LANGuage COMP Sets the instrument pr...

Страница 191: ...N 16 FW This function allows you to view the revision number of the Ermware that is REVISION installed in your instrument IDN Associated SCPI Commands Queries the instrument for model number serial number and firmware revision 15 21 ...

Страница 192: ...y are also displayed as zeros Annunciators such as SWEEP and CW are not blanked This function cannot be executed when the instrument is connected to an HP 8757 or when the instrument is speaking 8350 compatibility language If you attempt to do so nothing happens except an error message is displayed When you press i i SPECIAL m HZ S E N T E R the following message is displayed ZERO Ft cj y z Et4TEH...

Страница 193: ...n you press GiiF SPECIAL c401 Hz s ENTER the following message is displayed I 1 r mm r EHTER l If you do not want the save recall registers cleared press ZJ The message Mwmt q Not I 1 ex appears briefly and you are returned to the 481 C LEHR MEMOR C selection l If do want all of the save recall registers to be cleared by initializing the RAMS to all zeros press Hz s ENTER Associated SCPI Commands ...

Страница 194: ...s 403 SAVE This function allows you to enable or disable the CRAVE function When the LOCK function is enabled you can save instrument states into the nine available registers using the LSAVE key When the function is disabled you cannot save instrument states and the message 91 4E LOCKECi will appear in the MARKER SWEEP STATUS display if you attempt to do so When your instrument was shipped the sav...

Страница 195: ...e sweeper and turns the displiiy on 405 SYSTEM This function allows you to lock the front panel keyboard KLOCK When you press m SPECIAL c405 bZ S E N T E R the following message is displayed t vd LK I IFF The m I J keys or the front panel knob let you toggle from a normal keyboard to a locked keyboard When you lock the keyboard it is locked against any entry except for preset and cycling power If ...

Страница 196: ...Special Functions 18 DP DEFIN This function allows you to select whether the decimal point appears as a period or as a comma Associated SCPI Commands None 15 26 ...

Страница 197: ...either the master or slave CONTROL MODE state For more information on master slave operation refer to Chapter 6 Operating a Master Slave Setup Associated SCPI Commands SWEep CONTrol TYPE MASTer Sets the sweeper to the master state SWEep CONTrol TYPE SLAVe Sets the sweeper to the slave state 15 27 ...

Страница 198: ...results will read Full Test PHS ED If there is a failure the test that failed will appear in the MARKER SWEEP STATUS display preceded by If more than one test failed the most significant failure will be displayed Before sweeper operation can be continued a preset must be performed If the self test fails does not say Full Test PHSSE refer to the Troubleshooting chapter of the Service Guide Associat...

Страница 199: ...16 Error Messages ...

Страница 200: ...nunciator turns off will empty the front panel error queue The MSG key has no affect on the HP IB error queue Emptying the HP h3 error queue has no affect on the front panel queue therefore it will not affect the MSG annunciator There are some special error types that are called permanent errors Permanent errors remain in the error queues until the error condition is cleared Pressing the IIVISG ke...

Страница 201: ...oves that error event from the queue and opens a position at the tail of the queue for a new error event if one is subsequently detected When all errors events have been read from the queue further error event queries shall return 0 No error Individual errors and events may be enabled into the queue The STATus QUEue ENABle command accomplishes this At STATus PRESet only errors are enabled This mea...

Страница 202: ...error description portions of the ERRor query response are listed here The first error event described in each class for example 100 200 300 400 is a generic error In selecting the proper Error event number to report more specific error event codes are preferred and the generic error event is used only if the others are inappropriate 16 4 ...

Страница 203: ...a out of range Test Patch Value Out of Range is the error message When the LMSG key is pressed the error message is displayed in the leftmost display The entire message is returned by the HP IB query SYSTem ERRor The error message contains the following parts q SCPI Error Number The standard SCPI error number 222 in the example usually differs from the manual error number because the manual error ...

Страница 204: ...l Action Required The text that appears below each error message listing contains corrective actions that should be followed in order to correct the error condition Note that the action required is never shown in the sweeper display 16 6 ...

Страница 205: ...o device message was received which is in violation of the IEEE 488 2 standard Possible violations include a data element which violates the device listening formats or whose type is unacceptable to the device l An unrecognized header was received Unrecognized headers include incorrect device specific headers and incorrect or unimplemented IEEE 488 2 common commands l A Group Execute Trigger GET w...

Страница 206: ... for example a string was received when the device does not accept strings Invalid separator The parser was expecting a separator and encountered an illegal character for example the semicolon was omitted after a program message unit EMC 1 CHI VoLTS 5 Data type error The parser recognized a data element different than one ahowed for example numeric or string data was expected but block data was en...

Страница 207: ...is an error Program mnemonic too long The header contains more that twelve characters See IEEE 488 2 7 6 1 4 1 Undehned header The header is syntactically correct but it is undefined for this specific device for example XYZ is not deEned for any device Header sufhx out of range The value of a numeric suffix attached to a program mnemonic makes the header invalid Numeric data error This error as we...

Страница 208: ...ld be used if the device cannot detect a more specific error Invalid sufhx 134 The sufhx does not follow the syntax described in IEEE 488 2 7 7 3 2 or the sufhx is inappropriate for this device SufEx too long 138 The suffix contained more than 12 characters See IEEE 488 2 7 7 3 4 Suffix not allowed 140 141 A suffix was encountered after a numeric element which does not allow suffixes Character dat...

Страница 209: ...as expected but was invalid for some reason See IEEE 488 2 7 7 5 2 for example an END message was received before the terminal quote character String data not allowed A string data element was encountered but was not allowed by the device at this point in parsing Block data error This error as well as errors 161 through 169 are generated when parsing a block data element This particular error mess...

Страница 210: ... allowed by the device at this point in parsing Macro error This error as well as errors 181 through 189 are generated when dehning a macro or executing a macro This particular error message should be used if the device cannot detect a more specific error 181 Invalid outside macro definition Indicates that a macro parameter placeholder knumber was encountered outside of a macro dehnition 183 184 I...

Страница 211: ...ollowing a header was evaluated by the device as outside of its legal input range or is otherwise inconsistent with the device s capabilities l A valid program message could not be properly executed due to some device condition Execution errors shall be reported by the device after rounding and expression evaluation operations have taken place Rounding a numeric data element for example shall not ...

Страница 212: ...cal so the message cannot be executed Settings lost due to rtl Indicates that a setting associated with a hard local control See IEEE 488 2 5 6 15 was lost when the device changed to LOCS from REMS or to LWLS from RWLS Trigger error A trigger error occurred in the signal generator Trigger ignored Indicates that a GET TRG or triggering signal was received and recognized by the device but was ignore...

Страница 213: ... used when the device cannot detect the more specific errors described for errors 221 through 229 Settings contlict Indicates that a legal program data element was parsed but could not be executed due to the current device state See IEEE 488 2 6 4 5 3 and 11 5 1 1 5 Data out of range Indicates that a legal program data element was parsed but could not be executed because the interpreted value was ...

Страница 214: ... what constitutes a hardware problem is completely device specik This error message should be used when the device cannot detect the more specihc errors described for errors 241 through 249 241 Hardware missing Indicates that a legal program command or query could not be executed because of missing device hardware for example an option was not installed DeEnition of what constitutes missing hardwa...

Страница 215: ...tion See IEEE 488 2 10 7 6 3 272 Macro execution error Indicates that a syntactically legal macro program data sequence could not be executed due to some error in the macro definition See IEEE 488 2 10 7 6 3 273 Illegal macro label Indicates that the macro label defined in the DMC command was a legal string syntax but could not be accepted by the device See lEEE 488 2 10 7 3 and 10 7 6 2 for examp...

Страница 216: ... be recursive See IEEE 488 2 10 7 6 6 Macro redefinition not allowed Indicates that a syntactically legal macro label in the DMC command could not be executed because the macro label was already dehned See IEEE 488 2 10 7 6 4 Macro header not found Indicates that a syntactically legal macro label in the GMC query could not be executed because the header was not previously dehned 16 18 ...

Страница 217: ...EEE 488 2 section 11 5 1 to be set The meaning of positive error codes is device dependent and may be enumerated or bit mapped the error message string for positive error codes is not defined by SCPI and available to the device designer Note that the string is not optional if the designer does not wish to implement a string for a particular error the nulI string should be sent for example 42 The o...

Страница 218: ...s occurred This code is device dependent Memory error Indicates that an error was detected in the device s memory The scope of this error is device dependent Save recall memory lost Indicates that the nonvolatile data saved by the SAV command has been lost Configuration memory lost Indicates that nonvolatile conEguration data saved by the device has been lost The meaning of this error is device sp...

Страница 219: ...r bit bit 2 in the event status register IEEE 488 2 section 11 5 1 to be set These errors correspond to message exchange protocol errors described in IEEE 488 2 section 6 5 One of the following is true l An attempt is being made to read data from the output queue when no output is either present or pending l Data in the output queue has been lost Events that generate query errors shah not generate...

Страница 220: ... or GET before a response was completely sent Query UNTERMINATED Indicates that a condition causing an UNTERMINATED Query error occurred See IEEE 488 2 6 3 2 2 for example the device was addressed to talk and an incomplete program message was received 430 Query DEADLOCKED Indicates that a condition causing an DEADLOCKED Query error occurred See IEEE 488 2 6 3 1 7 for example both input buffer and ...

Страница 221: ...ed by the array deEnition 102 161 Invalid block data Incorrect Number Of Calibration Array Elements 102 For a speciEc calibration array the HP II3 controller has sent an incorrect number of array elements than needed by the array deEnition 103 161 Invalid block data Bad Learn String Checksum l03 Indicates that an incoming learn string was rejected because the newly calculated checksum did not matc...

Страница 222: ...05 Indicates that during a Flatness Calibration the instrument was trying to establish the control of a supported Power Meter but could not End it Flatness Calibration is aborted 310 System error Meter Returns Error Message 206 Indicates that during a Flatness Calibration the HP IB Power Meter error checking returns an error message of some type 310 System error Meter Data Measured Is Invalid or O...

Страница 223: ... 303 178 Expression data not allowed CI No Intensity Crystal Markers Allowed 303 Indicates that the command CI was detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 304 178 Expression data not allowed DP Display Blanking is always ON 304 Indicates that the command DP was detec...

Страница 224: ... SHCF No Coarse CW Resolution Allowed 308 Indicates that the command SHCF was detected while the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 309 178 Expression data not allowed SHDF No Fine CW Resolution Allowed 309 Indicates that the command SHDF was detected while the instrument was usin...

Страница 225: ...ompatible language These commands are accepted but no action is taken because the instrument does not have this feature 312 178 Expression data not allowed SX No External Sweep Allowed 312 Indicates that the command SX was detected white the instrument was using the HP 8350 compatible language These commands are accepted but no action is taken because the instrument does not have this feature 16 2...

Страница 226: ...ons 222 Data out of range Test Patch Value Out Of Range 403 Indicates that user has entered a Self Test Patch with upper or lower limit values greater than allowed All upper and lower limits of these Self Test Patches must be with in the range of 32767 to 32768 404 220 Parameter error Incorrect Number of Parameters 404 Indicates that user has entered too many or not enough parameters to complete t...

Страница 227: ...Recovered Error 409 Indicates that after the instrument is up and running a series of power on self tests have been run and error correction code checking has found that contents of Static Ram SRAM has been corrupted during power up SRAM Calibration data and SRAM Instrument State have been cleared and are lost The rear panel dip switch 7 can may be set to deliberately cause this condition 330 Self...

Страница 228: ...rror 330 Self test failed RAM backup battery is LOW 416 Indicates SRAM backup battery is LOW 330 Self test failed Power Up RAM Addressing Error 417 Indicates RAM Addressing Error during Power Up 330 Self test failed Power Up RAM Test Error LOW BYTE 418 Indicates that after the instrument is up and running a series of power on self tests have been run and RAM Test is found to have low byte error 33...

Страница 229: ...strument is guaranteed It is suggested that a calibration save operation be performed to permanently correct this problem 423 330 Self test failed Power Up DSP Handshake Failed 423 Indicates that during the series of power on self tests the handshake control with the Digital Signal Processor has failed 424 330 Self test failed DSP Handshake Fail During Byte Transfer 424 Indicates that after the in...

Страница 230: ...t Able to Recall From EEPROM Default Used 601 More that a single bit error has been detected when recovering calibration data from EEPROM Thus it could not be used Default calibration data is used instead 602 311 Memory Error EEPROM Failure Calibration data could not be saved 602 603 604 605 Calibration could not be stored in EEPROM EEPROM have been detected to have failed 311 Memory Error RECALL ...

Страница 231: ...ly In Network Analyzer mode 608 Frequency zero can only be executed when the instrument is in stand alone mode When the instrument is connected to an IIF 8757 or when the instrument is speaking 8350 compatibility language frequency zero cannot be implemented If the user attempts to implement frequency zero in these modes an error message will be generated Calibration Routine Errors 701 702 703 300...

Страница 232: ...ED position Calibration data is unable for write access To UNLOCK the Calibration Security system refer to the Service Guide for CPU board dip switch configuration 300 Device specific error Flatness Calibration Failed 719 The Flatness calibration algorithm failed for unspecmed reasons 300 Device specific error Flatness Calibration Failed 711 The Flatness calibration algorithm failed due to an erro...

Страница 233: ...atch the system security password 716 300 User Defined Password must be a 5numericaldigit 716 The user is trying to change the calibration security password and the new password is not a 5digit numerical entry Loops Unlocked Errors 801 802 803 804 300 Device specific error YIG Oscillator Unlock 801 Phase lock with the YIG oscillator was lost or could not be achieved 300 Device specific erroqllefer...

Страница 234: ... error Bad Magic Numbers in MM Head 904 The instrument will attempt to read known constants from predelined memory locations in the mm wave source module NOVRAM non volatile RAM and ROM An error condition occurs if the constants are not read back correctly and the instrument reverts back to its stand alone mode 905 300 Device specific error Bad Checksum in MM Head 905 The error condition occurs wh...

Страница 235: ...I 17 Specifications and Options I ...

Страница 236: ...tions and Options This chapter contains listings of the sweeper performance spectications and the mechanical electrical warranty and documentation options that are available for the HP 83750 series sweepers 17 2 ...

Страница 237: ...less otherwise noted Specifications apply after the peak function has been performed Refer to PEAK II in Chapter 14 for information on performing the peak function Supplemental characteristics indicated by italics are intended to provide information useful in applying the instrument but are not warranted parameters 17 3 ...

Страница 238: ...timebase f10 ppm High stability timebase Option lE5 Accuracy Calibration Aging rate Temperature effects Line voltage effects Aging rate 5 x lo day 1 x 10e7 yea r With temperature I x 10 oC With line voltage 5 x 10 l for 10 change CW Mode Resolution 1 Hz Accuracy same as timebase Switching time 70 ms max 17 4 ...

Страница 239: ... time can occur when crossing the 2 GHz bandswitch point Dwell time point 1 ms to 50 s Ramp Analog Sweep Mode Resolution 1 kHz Accuracy 25 f5 OC for 100 ms sweeps the greater of fO Ol of span ftimebase or f75 kHz ftimebase at other sweep speeds fO OOl of span sweep time s ftimebase Sweep time 10 ms to 100 s 400 MHz ms max Bandswitch Points Fbr spans 100 MHz Fbr ramp sweeps 0 8 octave Bandswitch po...

Страница 240: ...A N s 0 c a Specifications and Options Frequency 4 2 0 2 A 0 2 4 6 8 1 0 1 2 1 4 1 6 1 8 2 0 F r e q u e n c y GHz pg428ob Figure 17 1 Typical Swept Frequency Accuracy 100 ms sweep ramp mode 1 7 6 ...

Страница 241: ...25 f5 C HP 8375141 10 dBm HP 83752A 10 dBm HP 83751B 17 dBm HP 83752B 2 GHz 16 dBm 2 2 GHz 17 dBm With Option 1El step attenuator reduce by 1 dB mwer typically degrades 2 5 dB over 0 to 55 O C 2 5 1 9 1 6 1 3 1 0 4 8 1 2 1 6 2 0 5 F r e q u e n c y GHz pg430ob Figure 17 2 Typical Maximum Available Power 17 7 ...

Страница 242: ...5 dBm With Option 1El 85 dBm HP 83751B and HP 83752B 10 dBm With Option 1El 80 dBm Resolution Settable 0 01 dB Display 0 1 dB Accuracy and Flatness Specifications apply for coupled attenuator mode Option 1El and ALC level 10 dBm HP 83751A and HP 83752A 5 dBm HP 83752A and HP 83752B 17 8 ...

Страница 243: ...l Leveling External detector range 0 2 mV to 0 5 V bandwidth sweep speed and modulation mode dependent 10 or 100 kHz nominal Etiernal power meter 1 Hz bandwidth nominal External mm wave module HP 83550 series compatible with Option 1EE User Flatness Level Correction Number of points 2 to 801 points table Number of tables up to 9 Entry modes power meter HP IB Compatible with HP 437B 438A 70100 and ...

Страница 244: ...Specifications and Options RF output Source Match 1 7 1 SWR internaLLy Leveled 1 7 1 0 ...

Страница 245: ......

Страница 246: ... 0 7 0 N t 9 0 CL110 u 1 3 0 1 5 0 100 IK 10K IOOK 1M IOM O f f s e t F r o m C a r r i e r pg429ab Figure 17 3 Typical Phase Noise 10 GHz Carrier Residual FM 0 05 to 15 kHz bandwidth Residual FM 1 kHz RMS in CW mode Residual FM is typically 10 kHz in unlocked FM mode 17 12 ...

Страница 247: ...inimum Leveled width 2 ps or frequencies 500 MHz in CW mode or 2 GHz in swept mode Internal pulse generator Width range 1 LAS to 65 ms Period range 2 ps to 65 ms Resolution 1 ps Internal square wave 1 O kHz and 27 8 kHz scalar mode AM Sensitivity 1 dB V Bandwidth 3 dB 100 kHz usable to 1 MHz Depth for HP 8375X 20 dB 10 dBm to 10 dBm Depth for HP 8375XB 22 dB i 17 dBm to 5 dBm Input impedance 3 5 k...

Страница 248: ...to 25 times the rate DC unlocked mode Rates DC to 10 MHz Maximum deviation DC to 100 Hz rates f75 MHz 100 Hz to 1 MHz rates f 7 MHz 1 MHz to 2 MHz rates f5 MHz 2 MHz to 10 MHz rates f 1 MHz Sensitivity 6 or 20 MHz V See Chapter 15 Special finctions for FM sensitivity with millimeter head use Input impedance 1 kohm 1 7 1 4 ...

Страница 249: ...anguage SCPI complies with IEEE 488 2 1987 HP 8350 mnemonics have also been implemented to provide compatibility with ATE systems which include an HP 8350B sweeper Master Slave two tone Measurements 17 15 Two HP 83750 series sweepers can synchronously track each other over swept or stepped frequencies at any Iixed or swept frequency offset with limitations Refer to Chapter 6 Operating a Master Sla...

Страница 250: ... Operation Requires 30 minutes warm up time from cold start at 0 to 55 C Internal temperature equilibrium reached after 2 hour warm up at stable ambient temperatures Frequency Reference Option lE5 only Reference timebase is kept at operating temperature with the instrument connected to AC power Attention Instruments disconnected from AC power for more than 24 hours require up to 30 days to achieve...

Страница 251: ...ected If this instrument is to be energized via an external autotransformer for voltage reduction make sure that its common terminal is connected to a neutral earthed pole of the power supply Dimensions 133 mm high by 425 mm wide by 498 mm deep 5 25 in high by 16 75 in wide by 19 6 in deep excluding front and rear panel protrusions j_ 498 _I I I SIDE VIEW I pg432ab Figure 17 4 Dimensions 17 17 ...

Страница 252: ...Specifications and Options General Weight Net 16 kg 35 lb Shipping 23 kg 49 lb 17 18 ...

Страница 253: ...can select whether or not the step attenuator will automatically switch Refer to the Special Functions chapter special function number 6 If Option lE4 is ordered the RF OUTPUT connector will be moved to the rear panel If Option lE5 is ordered the sweeper is shipped with a 10 MHz temperature controlled crystal reference oscillator for increased frequency accuracy and stability When Option lE5 is in...

Страница 254: ...ilable for the sweeper If these options were not ordered with the original shipment and are now desired they can be ordered from the nearest Hewlett Packard office using the part numbers included in each of the following descriptions Option ICM Rack Mount Ordering Option ICM adds a rack mount kit without handles The HP part Kit without Handles number for the rack mount kit without handles is 5062 ...

Страница 255: ...y options available for the sweeper These options are as follows This option extends the beneEts of factory warranty to provide a total of three years of customer return repair service This option extends the benefits of factory warranty to provide a total of Eve years of customer return repair service This option provides Eve years of HP calibration service at HP customer service centers This opt...

Страница 256: ...004 HP 83751A B and HP 83752A B nthesi Sweepers Programming Guide HP part number 83750 90005 and the HP 83751MB and HP 83752MB Synthesized Sweepers Installation and Quick Start Guide HP part number 83750 90006 Option 083 Service Documentation If Option OB3 is ordered the shipment includes the HP 83751MB and HP 83752A B Synthesized Sweepers Service Guide HP part number 83750 90003 Note that this do...

Страница 257: ...18 Safety and Regulatory Information ...

Страница 258: ...on that is not included elsewhere in the manual The Erst part of this chapter includes regulations and licensing information including the Manufacturer s Declaration of Conformity The second part of the chapter contains required safety information that is not included elsewhere in the manual 18 2 ...

Страница 259: ...Regulations and Licensing Notice for Germany Noise Declaration LpA 70 dB am Arbeitsplatz operator position normaler Betrieb normal position nach DIN 45635 T 19 per IS0 7779 18 3 ...

Страница 260: ... Product Options This declaration covers ail options of the above products Conforms to the following product specifications Safety CAN CSA 22 2 No 231 Series M89 EMC EN 55011 1991 CISPR ll 1990 Group 1 Class A EN 50082 l 1992 IEC 801 2 1991 4 kV CD 8 kV AD IEC Sol 3 1984 3 V m 27 500 MHz IEC 801 4 1988 500 V signal 1000 V AC Supplementary Information The HP 83751A was qualified as part of a produc...

Страница 261: ...duct Options This declaration covers all options of the above products Conforms to the following product specifications Safety CAN CSA 22 2 No 231 Series M89 EMC EN 55011 1991 CISPR ll 1990 Group 1 Class A EN 50082 l 1992 IEC 801 2 1991 4 kV CD 8 kV AD IEC 801 3 1984 3 V m 27 500 MHz IEC 801 4 1988 500 V signal 1000 V AC iupplementary Informatiou The HP 83 75lB was qualified as part of a product f...

Страница 262: ... Sweeper HP 83752A This declaration covers all options of the above products Conforms to the following product specifications Safety EMC CAN CSA 22 2 No 231 Series MB9 EN 55011 1991 CISPR ll 1990 Croup 1 Class A EN 50082 l 1992 IEC 801 2 1991 4 kV CD 8 kV AD IEC 801 3 1984 3 V m 27 500 MHz IEC 801 4 1988 500 V signal 1000 V AC Supplementary Information The HP 83752A was qualified as part of a prod...

Страница 263: ...ized Sweeper HP 837528 This declaration covers all options of the above products Conforms to the follawing product specifications Safety EMC CAN CSA 22 2 No 231 Series M89 EN 55011 1991 CISPR ll 1990 Group 1 Class A EN 50082 l 1992 IEC 801 2 1991 4 kV CD 8 kV AD IEC BOl 3 1984 3 V m 27 500 MHz IEC 801 4 1988 500 V signal 1000 V AC Supplementary Information The HP 83752B was qualified as part of a ...

Страница 264: ...o retain the instrument in a safe condition Environmental Conditions The HP 83750 series synthesized sweepers may be operated safely if the following environmental conditions are met l Indoor use l Altitude up to 2000 m 0 Temperature 5 OC to 40 C l Maximum relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 relative humidity at 40 C l Mains supply voltage fluctuations not to...

Страница 265: ... the cabinet must be less than the maximum operating temperature of the instrument by 4 C for every 100 Watts dissipated in the cabinet If the total power dissipated in the cabinet is greater than 800 Watts then forced convection must be used Cleaning Instructions The connectors on the sweeper should be cleaned periodically for good connections The cabinet should only be cleaned using a damp cloth...

Страница 266: ...Index ...

Страница 267: ...17 17 active marker 9 3 defined 9 3 add attenuator option 17 19 add high stability timebase option 17 19 address power meter 15 13 to set 8 10 to view 8 10 ALC IN connector 7 5 ale kev 13 7 LC IODE fj key 13 7 all off function markers 9 7 ALT annunciator 7 20 alternate sweep to turn off 8 11 alternate sweep function 8 11 alt n function 8 11 AM specifications 17 13 AM INPUT connector 7 5 AM modulat...

Страница 268: ...9 blanking the display 15 25 BNC connectors 7 4 7 book conventions xiv book introduction iii vi book outline vi calibration flatness 13 10 calibration security 15 22 caution notice defined xii center frequency CW coupling 11 10 15 6 center frequency key 1 l 8 certification viii CF annunciator 7 20 cf key 11 8 key 11 8 cf span operation 11 9 check confidence l 2211 operator s 1 2 11 clearing memory...

Страница 269: ...ation ii correction user flatness array 5 2 cw swept 11 11 CW annunciator 7 20 CW center frequency coupling 15 6 CWCF auto on off 15 6 cw cf coupling 11 10 cw key 11 10 m key 11 10 CW mode specifications 17 4 CW PEAKNG 15 7 data points 12 10 de unlocked FM mode 1 O 7 decimal point to define 15 26 declaration of conformity 18 4 7 device specific errors 16 19 dictionary reference vi dimensions 17 17...

Страница 270: ... messages 16 2 36 to view 8 11 error messages list 16 5 22 error numbers 16 4 errors permanent 16 2 execution errors 16 13 EXT ALC annunciator 7 21 ext cal function 13 9 external am mode 10 B external cal 13 9 external leveling 2 2 11 diode 13 7 low output 2 6 power meter 13 7 specifications 17 9 with detectors couplers or splitters 2 3 5 with millimeter heads 2 9 with power meters 2 7 with source...

Страница 271: ...ual speciiication 17 12 specifications 17 14 FM INPUT connector 7 5 mp 1o 7 FM modulation 10 2 10 7 FM off mode 10 7 FM SENSITIVITY 15 19 frequency center 11 8 characteristics 17 4 specifications 17 4 frequency display 7 17 11 2 frequency display zeroing 15 22 frequency functions 11 2 frequency keys 11 2 13 frequency multiplier function 1 l 7 frequency offset function 11 4 frequency standard selec...

Страница 272: ...ce capabilities 7 12 HP IB lang address switch 7 23 HP IB restrictions 7 11 HP IB status LEDs 7 22 HP IB switch settings 7 23 1 IEEE Standard 488 1978 7 12 initializing RAMS to zero 15 23 instruction manual symbol delined xii instrument language to set 15 20 instrument language switch 7 23 instrument language switch settings 7 24 instrument state keys 8 2 intensity markers Q 5 interface capabiliti...

Страница 273: ...Q external with power meters 2 7 externalwith source modules 2 9 internal 13 7 power meter 13 7 source module 13 8 leveling control key 13 7 licensing 18 3 line power switch 7 27 line switch 7 27 L LED 7 22 L LED annunciator 7 22 local key 8 10 C 1 key 8 10 locking the keyboard 15 25 M Ml MBISWEEP key 11 12 Ml M2 SWP annunciator 7 22 Ml M2 SWP LED 7 22 MAN annunciator 7 20 manual outline vi manual...

Страница 274: ...ions 17 20 meter power leveling 2 7 millimeter head interface connector 7 13 millimeter head leveling 2 9 millimeter head use 4 2 millimeter signal to generate 4 2 minimum settable power 17 8 mkr n key 9 4 1 key 9 4 MKR tCF function 11 8 MKRS annunciator 7 21 MKR A annunciator 7 22 z key Q 8 MKR A LED 7 22 mkr A ref function Q Q mm wave head option 17 20 modulation AM 10 6 AM specihcations 17 13 F...

Страница 275: ...2 11 option lE1 17 19 option lE4 17 19 option lE5 17 19 option lED 17 19 option lEE 17 20 connector 7 13 option OB2 extra operating documentation 17 22 option OB3 service documentation 17 22 options 17 19 documentation 17 22 electrical 17 19 mechanical 17 20 rack mount 17 20 warranty 17 21 option W30 three years returnto HP service 17 21 option W50 five year return to HP calibration service 17 21 ...

Страница 276: ...7 17 pinout auxiliary interface 7 Q points 12 10 power flatness corrected 5 2 maximum leveled 17 7 maximum leveled check l 6 minimum settable 17 8 output check 1 8 specifications 17 7 power accuracy specifications 17 8 power cable conhgurations 7 29 power cables 7 29 power calibration 13 9 power key 14 7 power keys 13 2 10 OWER LEv _ key 13 3 power meter leveling 2 7 power meter address 15 18 powe...

Страница 277: ...ETER AD 15 18 PWR METER TY 15 17 PWR SWP annunciator 7 21 Q query errors 16 21 R rack mounting options 17 20 ramp sweep mode specifications 17 5 range frequency specifications 17 4 R annunciator 7 22 rear panel HP IB lang address switch 7 23 rear panel features 7 2 30 rear panel language switch 7 23 rear panel RF output option 17 19 recalling instrument states 8 8 recall key 8 8 RECALL_ key 8 8 re...

Страница 278: ...iderations xiii safety and regulatory information 18 2 Q safety notes defined xii sales and service offices xi save key 8 6 CRAVE key 8 6 save key disabling 15 24 save key enabling 1524 save preset function 8 6 save recall register clearing 15 23 saving instrument states 8 6 saving user defined preset 8 6 scale volts per GHz 15 15 security 15 22 self test 1 3 selftest full 15 28 sensitivity FM 15 ...

Страница 279: ... 2 9 13 8 source module use 4 2 source synchronization 6 2 7 SPAN annunciator 7 20 span key 11 9 LSPAN key 11 9 special function key 8 8 special function representations xiv special functions 15 2 28 ATT COUPLING 15 11 ATT SETTING 15 12 CONTROL MODE 15 27 CWCF AUTO 15 6 CW PEAKNG 15 7 DP DEFIN 15 26 FM SENSITIVITY 15 19 FULL SELFTST 15 28 FW REVISION 15 2 1 LANGUAGE 15 20 PWR METER AD 15 18 PWR ME...

Страница 280: ...d sweep to generate 3 2 stepped sweep mode 12 8 specifications 17 5 stepped sweep time 3 2 C SIZE_ step sizes table 14 3 STEP SWPTIME 15 9 STOP annunciator 7 20 stop key 11 6 CSTOP key 11 6 STOP SWEEP connector 7 6 subharmonics specification 17 11 17 3 analog speciEcations 17 5 manual 12 5 power 13 5 power specification 17 Q ramp specifications 17 5 SWEEP annunciator 7 20 sweeper at a glance iv sw...

Страница 281: ...option W30 17 21 timebase option 17 19 timebase stability specification 17 4 lTIMEJ key 12 4 time standard specifications 17 4 T LED 7 22 T LED annunciator 7 22 trigger single 12 10 TRIGGER INPUT connector 7 6 trigger mode key 12 7 TRIGGER OUTPUT connector 7 6 TRIG MODE 0 key 12 7 two tone operation 6 2 7 type N connector option 17 19 U UNCPLD annunciator 7 21 unit keys 14 6 UNLEV annunciator 7 21...

Страница 282: ...nnector 7 6 volts per GHz offset 15 16 scale 15 15 w warmup time required 17 16 warning notice defined xii warranted performance 17 2 warranty ix warranty options 17 21 warranty service ix weight 17 18 width pulse 10 6 Z Z AXIS BLANKfMKRS connector 7 7 zeroing the frequency display 15 22 z mod markers 9 5 Index 17 ...

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