Keysight (Agilent HP) E8364A Repair Service

E8364A Microwave Network Analyzer 45MHz-50GHz
Complete Agilent E8364A Network Analyzer repair and calibration, even after factory support ends. Free estimates and quick turnaround times.
The Agilent E8364A vector network analyzer is a member of the PNA Series network analyzer platform and provides the combination of speed and precision for the demanding needs of today''s high frequency, high-performance component test requirements. The PNA Series meets these testing challenges by providing the right combination of fast sweep speeds, wide dynamic range, low trace noise and flexible connectivity. The E8364A provides TRL/LRM calibration (four-receiver enabled) for waveguide, on-wafer, and in-fixture devices. Source attenuators, bias-tees and direct receiver access are optionally available for active device and extended dynamic range measurements.
HP_E8364A
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.
E8364A Specifications – click to expand

E8364A Specifications

  • 45 MHz to 50 GHz
  • 123 dB dynamic range at test port
  • 138 dB dynamic range with direct receiver access
  • 104 dB dynamic range at the test port at 50 GHz
  • < 26 us/point sweep speed
  • COM/DCOM and SCPI programming
  • TRL/LRM calibration supported
E8364A Options – click to expand

E8364A Options

  • 010, Time Domain
  • 014, Configurable Test Set
  • 016, Receiver Step Attenuators
  • 080, Frequency Offset
  • 081, Reference Receiver Switch
  • 082, Scalar Mixer Calibration
  • 083, Vector Mixer Calibration
  • UNL, Extended Power Range and Bias Tees
  • 1CM, Rack Mount Kit
Agilent / HP E8364A Error Codes – click to expand

Agilent E8364A Error Messages

This E8364A list covers the on-screen errors that matter for repair and the board each one leads to.

E8364A on-screen error messages

MessageMeaning and where to look
PHASE LOCK LOSTThe A11 phase lock board sees too little reference-receiver signal to lock. Cause can be in the source, signal separation (couplers, switch) or receiver path. Check the A10 frequency reference output and the reference receiver first.
SOURCE UNLEVELEDOn the E8364A check cables W37/W38 from the A23/A24 detectors to the A16 test set motherboard and W39 to the A21 SOMA 50. One port only: replace that port's detector. Both ports: replace A16.

E8364A failed performance test – likely cause

Failed testWhat it points to
Source power accuracy / linearityRun the source calibration adjustment; if it still fails, the source (A12 source) is suspect.
Source maximum power outputFollow the signal through the separation path (switch, couplers, attenuators) to find the loss.
Frequency accuracyMeasure the rear-panel 10 MHz REF OUT; more than about 10 Hz off calls for the 10 MHz reference adjustment.
Trace noiseRarely fails alone; run the receiver calibration adjustment, then suspect the A6 SPAM board.
Receiver compression / noise floor / dynamic accuracyPoints to the A31–A34 receivers or the A6 SPAM board. Receivers are identical, so swapping two channels confirms a bad one.
Calibration coefficientsTracking terms only: run the receiver calibration adjustment. Any other error term failing means a hardware fault.
System crosstalkLoose RF cable, or isolation loss in the receivers or the receiver/test set motherboard. Tighten all cables and receiver screws first.

SCPI error ranges

RangeClass
−100 to −199Command errors
−200 to −299Execution errors
−300 to −399Device-specific errors
−400 to −499Query errors

Hardware error on your E8364A? Analyzer Repair Inc. repairs and calibrates the Agilent E8364A in-house in Cocoa, Florida. Free estimate once the unit is in our lab. Contact us for service.

Based on the Agilent PNA Series Service Guide E8362A/E8363A/E8364A (E8364-90001).

Agilent / HP E8364A Replaceable Parts – click to expand

Agilent E8364A Replaceable Assemblies and Part Numbers

Board and RF module part numbers for the Agilent E8364A; exchange numbers are factory-rebuilt units.

ReferenceAssemblyAgilent part numberNotes
A1Keypad assemblyE8356-60001
A2Display assemblyE8356-60002Inverter 0950-3379, lamp 2090-0386, glass 1000-1161 sold separately
A3Front panel interface boardE8361-60061
A4Power supply assembly0950-4599
A6Signal processing ADC module (SPAM) boardE8356-60006
A8Fractional-N synthesizer boardE8364-60099A9 second Frac-N with Option 080
A10Frequency reference boardE8364-60004
A11Phase lock boardE8364-60005
A12Source 20E8362-60002Exchange E8362-69002
A14System motherboardE8364-60006
A15CPU board, 500 MHzE8364-60025
A16Test set motherboardE8364-60007
A17LOMA 10 (LO multiplier/amplifier)5087-7127Exchange 5087-6127
A18MA 20 (multiplier/amplifier)5087-7128Exchange 5087-6128
A19Splitter5087-7139
A20LODA (LO distribution assembly)5087-7129Exchange 5087-6129
A21SOMA 50 (source multiplier/amplifier)5087-7130Exchange 5087-6130
A22Switch splitter5087-7132Exchange 5087-6132
A23, A24Channel R1 / R2 detector5087-7133
A25, A26Test port couplers5086-7518
A27, A30Channel A / B first converter (mixer)5087-7122Exchange 5087-6122
A28, A29Channel R1 / R2 first converter (mixer)5087-7145Exchange 5087-6145
A31–A34Receiver modules (A, R1, R2, B)E8364-60003Exchange E8364-69003
A35Receiver motherboardE8364-60010
A36, A3760 dB source step attenuators33325-60004Option UNL
A38, A39Bias tees (with cable)5087-7233Option UNL
A40Floppy disk drive0950-2782
A41Programmed hard disk driveE8801-60063
B1Fan3160-10853 required

Part obsolete? Many E8364A assemblies are no longer sold new. Analyzer Repair Inc. repairs E8364A boards and RF modules at the component level in Cocoa, Florida. Free estimate once the unit is in our lab. Contact us for service.

From the Agilent PNA Series Service Guide E8362A/E8363A/E8364A (E8364-90001).

Located in: Network Analyzers