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HP 8657A 0.1 to 1040 MHz RF Signal Generator – Tested & Working
The HP 8657A is renowned for its reliability, versatility, and performance, making it a staple in RF test labs and engineering benches worldwide. With a frequency range spanning 100 kHz to 1.04 GHz, the 8657A delivers exceptional analog modulation, low residual FM, and superb output level accuracy—ideal for R&D, manufacturing, and support of communication and navigation equipment. Its all-electronic attenuator design ensures long-term reliability and repeatable measurements, while the wide dynamic range accommodates even the most sensitive receiver tests. Whether you’re performing in-channel or out-of-channel receiver tests, the HP 8657A is a proven workhorse that’s built to last.
For Sale: HP 8657A RF Signal Generator (Pre-Owned, Tested, Working See Note)
- Frequency Range: 0.1 to 1040 MHz
- Power on: Default setting 100MHz at -143.5dBm
- RF Output: Frequency and amplitude output as expected
- Modulation: AM/FM functions tested and working
- Timebase: Running on standard internal timebase
– Internal timebase measures about 5.2 ppm high (+0.00058%), well within the ±0.001% specification - Condition: Good cosmetic condition with minor marks and signs of wear; no handles, no feet
- Included: Unit only (no cables, power cords, or test leads)
- Shipping Weight: 40 lbs
Note:
Option 001 (High Stability Timebase) is installed but the rear-panel high stability timebase output is not working. This does not affect the operation of the signal generator—frequency and amplitude outputs are correct, and all modulation functions perform as expected. The unit is currently operating on its internal standard timebase, which is well within the factory frequency accuracy specification. For most users, the high stability timebase is a “nice to have” feature, but the standard timebase already delivers excellent performance for the vast majority of RF test and measurement applications.
Summary:
This HP 8657A is fully functional for all standard RF signal generation needs, with accurate output and reliable modulation. The high stability timebase option is non-functional, but this does not impact normal operation or measurement performance. A solid, dependable instrument for any RF test bench!
See photos for condition.
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- No Liability for Consequential Damages. To the maximum extent permitted by applicable law, in no event shall the Seller or its suppliers be liable for any special, incidental, indirect, or consequential damages whatsoever (including, without limitation, damages for loss of profits, business interruption, or any other pecuniary loss) arising out of the use of or inability to use the Item purchased.
- No Waiver. If any provision of this agreement is deemed to be illegal or otherwise void, invalid, or unenforceable, such provision or part thereof shall be discarded and the remainder of this agreement without such provision or part thereof shall remain in full force and effect.
- Arbitration. All disputes arising under this Agreement shall be submitted to binding arbitration before an arbitrator in Will County Illinois and settled in accordance with the rules of the American Arbitration Association. Judgment upon the arbitration award may be entered in any court having jurisdiction thereof. Disputes in which the amount at issue is less than $2,500.00 shall not be subject to this arbitration provision.
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