The Keysight (Agilent HP) E8257D PSG is an analog RF/microwave signal generator providing CW output with optional analog and pulse modulation up to 67 GHz (operational to 70 GHz). It delivers high leveled output power, excellent level accuracy, and world‑class phase noise performance for LO substitution, radar, communications and other RF/MW test applications.
Specifications
Frequency
| Parameter | Value |
|---|---|
| Minimum Frequency | 250 kHz |
| Maximum Frequency | 67 GHz (operational to 70 GHz) |
| Frequency Resolution | 0.001 Hz resolution |
Output
| Parameter | Value |
|---|---|
| Maximum Output Power | +23 dBm @ 20 GHz (typ) |
| Output Power Range | +23 dBm @20 GHz; +17 dBm @40 GHz; +14 dBm @67 GHz; +26 dBm option; >+30 dBm with option 521 |
| Phase Noise | -115 dBc/Hz at 10 kHz offset, 10 GHz carrier (typ) |
Modulation
| Parameter | Value |
|---|---|
| Modulation | CW; AM, FM, PM (ØM), pulse; internal function generators |
| Sweep Modes | Digital step/list sweep; analog ramp sweep |
Additional
| Parameter | Value |
|---|---|
| Frequency options | 250 kHz to 20, 40, 50 or 67 GHz (operational to 70 GHz) |
| High output power option | High output power option to +26 dBm (measured) |
| Option 521 | >+30 dBm with option 521 |
| Ultra-low phase noise option | Up to 10 dB improvement vs standard phase noise |
| Frequency extension | Easy extension up to 325 GHz with Oleson Microwave Labs mm‑wave modules |
| Narrow pulse modulation | Typical 8 ns rise/fall times and 20 ns pulse width (10 MHz–67 GHz) |
| Internal function generators | Dual internal function generators: sine, square, triangular, ramp, noise |
| Memory | Removable 8 GB flash memory |
| Backwards compatibility | Same form factor and 100% code compatible with previous PSG generations |
| Typical use cases | Local oscillator substitution, distortion tests, radar test, interference signal generation |
| Warranty | Standard 1 year warranty, extendable to 5 years |
| Standard mode | Continuous wave (CW) generation standard; analog/pulse modulation optional |
Technology
Analog PSG
Applications
LO substitution; low‑jitter clock substitution; adjacent channel selectivity; RF & microwave radar, communications, and control systems