High Power PSG Analog Signal Generator RF Signal Generator Agilent E8257D 20GHz
| Attribute | Value |
|---|---|
| New / Used | Used |
| Frequency Range | 250 kHz – 20 GHz (Option 520) |
| Frequency Resolution | 0.001 Hz in CW mode (0.01 Hz in sweeps) |
| Phase Noise | –126 dBc/Hz @ 10 GHz, 10 kHz offset (typical) |
| Calibrated Output Power | +20 dBm to –110 dBm with Options 1EA (high-power) + 1E1 (step attenuator) |
| Analog Modulation Modes | AM, FM, φM, Pulse (Options UNT/UNU) |
The pre-owned Agilent E8257D spans 250 kHz to 20 GHz while delivering a synthesized 0.001 Hz step size and -126 dBc/Hz noise floor, so it substitutes for crystal-clean local oscillators and exposes mixer or ADC limits without additional filtering. High-power and electronic-attenuator options give a +20 dBm to -110 dBm calibrated range, covering PA compression, receiver sensitivity and EMC immunity tests from one port. Built-in AM/FM/PM plus optional pulse and list sweeps cut set-up time, and SCPI LAN/GPIB control lets the generator drop straight into automated benches.
Refurbished units ship ISO-17025-calibrated with current firmware, trimming capital expense and lead-time yet preserving Keysight reliability and future upgrade paths.

Interested in an Agilent E8257D or a similar model?
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Every unit is calibrated at an ISO/IEC 17025 accredited laboratory. The original calibration certificate, marked TESTRO Certified, is linked to the unit's serial number and included in the shipment.
- A set of high-resolution teardown photographs showing seals, fasteners, and all critical modules
- A live video session in which an engineer demonstrates gain-linearity, noise-floor, and spurious-response tests in real time. All recordings remain in our cloud archive for the life of the product.
- One-year transferable warranty
- Our in-house engineering team is available on business days to provide remote software troubleshooting or hardware-assembly guidance
- Custom flight case built from aviation-grade plywood with triple-layer anti-vibration foam
- Shock- and tilt-indicator labels on every crate
- Preferred carrier: DHL, delivery in 3-5 days to major destinations
We accept T/T, wire transfer, credit card.
Customers are welcome to visit our Shenzhen warehouse and refurbishment line to inspect calibration benches, burn-in racks, and inventory.
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