Keysight (Agilent HP) 8592B Repair Service

8592B spectrum analyzer 9kHz-22GHz
Send us your HP 8592B Spectrum Analyzer for full repair and calibration. Our veteran-owned lab offers free estimates and quick turnaround.
We are experts in the repair and calibration of the Keysight (Agilent/HP) 8592B Spectrum Analyzers. The Agilent 8592B is an easy-to-use microwave spectrum analyzer that offers a wide range of performance, features, and optional capability to meet your measurement needs. Downloadable measurement personalities combine with optional plug-in performance to provide tailored solutions for your application.
8592b
Any failures or unforeseen issues identified during the calibration phase will be detailed in an estimate submitted for your approval prior to any further action. Repair charges are determined by the actual time and materials required. Please be aware that customers are responsible for all associated shipping costs, to and from our location. This initial estimate is provided free of charge.
8592B Specifications – click to expand

8592B Specifications

SpecificationValue
Frequency range9 kHz to 22 GHz
Span range0 Hz [50 x N] kHz to 19.25 GHz
Span accuracy± 2% of span for span > 10 MHz and single band spans, ± 5% of span for span
8592B Options – click to expand

8592B Options

  • Options
  • 003: Card Reader
  • 021: HP-IB Interface
  • 023: RS-232 Interface
  • 1BH: general export version
HP 8592B Error Messages – click to expand

HP 8592B Error Messages

If your HP 8592B (9 kHz to 22 GHz) is displaying a message on screen, this list explains it. (H) = hardware fault, (U) = user or setup error, (M) = information.

First step: connect CAL OUT to the input and run CAL FREQ & AMPTD and CAL YTF, then press CAL STORE. A hardware (H) message that comes back after a good self-cal means the 8592B needs repair.

8592B notes

  • The 8592B has a YIG-tuned filter; run CAL YTF after CAL FREQ & AMPTD with the 100 MHz comb output cabled to the input.
  • Memory card commands on the 8592B need Option 003; without it they return INVALID CARD.
  • SRQ numbers on the 8592B screen are service requests: SRQ 110 means hardware broken, SRQ 140 means an illegal command.

8592B hardware messages

MessageTypeMeaning
ADC-2V FAILHThe processor board failed its analog-to-digital converter 2 V reference check.
FAIL: xxxx xxxxxxxxxxHA circuit fault was found during the power-up self-test. The 4-digit and 10-digit code identifies the failed circuit (see the service manual).
FREQ UNCALU/HYTO tuning failure. Common when default correction factors are in use; run CAL FREQ. It also flashes briefly during CAL FREQ or when turning the knob, which is normal.
CAL SIGNAL NOT FOUNDU/HThe CAL OUT signal could not be found. Check the cable from CAL OUT to the input. If it is connected, enter the −37 Hz passcode (FREQUENCY, −37, Hz) before CAL FREQ or CAL FREQ & AMPTD.
CAL: GAIN FAILHSignal level too low during CAL AMPTD.
CAL: SPAN SENS FAILHThe span sensitivity calibration failed.
CAL: FM SPAN SENS FAILHCould not set the FM coil span sensitivity.
CAL: RES BW AMPL FAILHThe relative loss of a resolution bandwidth filter is wrong.
CAL: DATA NOT STORED CAL AMP NEEDEDU/HCorrection factors are corrupt and cannot be stored. Run CAL FREQ & AMPTD, then CAL STORE.
CAL: cannot execute CALAMP enter: 0 dB PREAMP GAINU/HSet EXT PREAMP gain to 0 dB before running CAL AMPTD.
CONF TEST FAILHThe confidence test failed.
POS-PK FAILHPositive-peak detector failed.
SAMPLE FAILHSample detector failed.
VID-BW FAILHVideo bandwidth check failed.
RES-BW NOISE FAILHNoise floor too high at the bandwidth shown.
RES-BW SHAPE FAILHA resolution bandwidth 3 dB width is out of specification.
STEP GAIN ATTEN FAILHIF step gain failed.
COMB SIGNAL NOT FOUNDU/HThe 100 MHz comb signal was not found. Check that COMB OUT is cabled to the input.
CAL: LOST COMB SIGNALU/HComb signal too weak to finish CAL YTF. Use a short, low-loss SMA-to-Type-N cable from the comb output to the input.
ADC-GND FAILHThe processor board failed its analog-to-digital converter ground check.
ADC-TIME FAILHThe processor board failed its analog-to-digital converter timing check.

8592B calibration, setup and information messages

MessageTypeMeaning
CAL: USING DEFAULT DATAMCal data is corrupt, so default correction factors are in use. An interrupted self-cal can cause this.
MEAS UNCALUSweep time, span and bandwidth settings make the measurement uncalibrated.
CAL: PASSCODE NEEDEDMThe function needs the service passcode (center frequency −37 Hz).
SRQ 110MHardware broken service request. Look for the hardware message shown with it.
SRQ 140MIllegal command was received over the bus.
INVALID SYMTAB ENTRY: SYMTAB OVERFLOWUToo many user-defined items or downloadable programs in memory; delete some with DISPOSE USER MEM. It can also mean a failed processor board.
NO COUNTERLOCK AVAILABLEUThat command needs the counter-lock hardware, which the 8592B does not have (8591A and 8593A only).

8592B remote programming and memory card messages (U)

These come from bad remote commands, memory card problems or bus setup, not hardware: COMMAND ERROR, PARAMETER ERROR, INVALID ITEM, INVALID VALUE PARAMETER, INVALID ENTER FORMAT, INVALID OUTPUT FORMAT, INVALID BLOCK FORMAT: IF STATEMENT, INVALID COMPARE OPERATOR, INVALID REPEAT MEM OVFL, INVALID REPEAT NEST LEVEL, INVALID ACTDEF, INVALID VARDEF, INVALID KEYNAME, INVALID AUNITS, INVALID DETECTOR, INVALID TRIGGER MODE, INVALID TRACE, INVALID TRACE NAME, INVALID REGISTER NUMBER, INVALID SAVEREG, INVALID STORE DEST, INVALID CHECKSUM: USTATE, INVALID AMPCOR: FREQ, INVALID WINDOW TYPE, CONFLICT TABLE OVERFLOW, CAL: NO YTO AVAILABLE, SOFTKEY OVFL, UNDEF KEY, TABLE FULL, INVALID HP-IB ADDRESS/OPERATION, INVALID HP-IB OPERATION REN TRUE, INVALID RS-232 ADDRESS/OPERATION, INVALID CARD, INVALID CARD: DIRECTORY / NO CARD / TYPE, INVALID FILE: NO ROOM, NO CARD FOUND.

8592B failing self-cal? Our Cocoa, Florida lab still services the original 8590 series. Send us the message shown; the estimate is free once the unit is here. Contact us for service.

Message list based on the HP 8590B/8592B Installation, Verification and Operation Manual, Appendix A.

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