Fluke 9640A RF Reference Source Repair

Description

Fluke 9640A RF Reference Source Repair

The Fluke 9640A is an RF reference source — a metrology-grade signal source (to ~4 GHz) that generates precise, low-level leveled RF signals to calibrate RF level in measuring receivers, spectrum analyzers, and related instruments. Its faults concentrate in the RF output and leveling, the internal reference, and the attenuator/output switching.

FlukeMeterRepair.com repairs and calibrates the Fluke 9640A for RF calibration labs.

Common Fluke 9640A problems we fix

• Output-amplifier drift — the RF output/leveling drifting so it’s no longer a trustworthy reference, recalibrated against standards.
• Reference-source faults — the internal reference drifting, recalibrated.
• Attenuator / output-switching faults — the level-setting switching not working, repaired.
• Frequency / synthesizer faults — source drift or unlock, repaired.
• Communication or display faults.

FAQs

My 9640A output level is off — fixable? Yes. Output-amplifier, attenuator, and reference faults are repairable, then the source is recalibrated so the receivers and analyzers you calibrate are trustworthy, with a NIST-traceable certificate.

Is the level verified? Yes — RF level and frequency are checked against our standards.

Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or request service.