The Keysight (Agilent/HP) 8644B is a high-performance synthesized RF signal generator designed for applications requiring exceptional spectral purity. Available in 1 GHz and 2 GHz models, it features very low single-sideband (SSB) phase noise and non-harmonic spurious performance, making it highly suited for stringent receiver testing and automated spurious rejection testing. It also incorporates a solid-state electronic attenuator for highly reliable, repeatable level setting without the use of mechanical relays.
Specifications
Frequency
| Parameter | Value |
|---|---|
| Minimum Frequency | 252 kHz |
| Maximum Frequency | 1030 MHz (2060 MHz with option 002) |
| Frequency Resolution | 0.01 Hz |
Output
| Parameter | Value |
|---|---|
| Maximum Output Power | +16 dBm |
| Output Power Range | +16 dBm to -137 dBm |
| Phase Noise | -136 dBc/Hz at 20 kHz offset, 1 GHz carrier |
Modulation
| Parameter | Value |
|---|---|
| Modulation | AM, FM, Phase, Pulse |
| Amplitude Modulation Depth | 0 to 100% |
General
| Parameter | Value |
|---|---|
| Interfaces | HP-IB (IEEE-488) |
Physical
| Parameter | Value |
|---|---|
| Weight | 30 kg |
Frequency Characteristics
| Parameter | Value |
|---|---|
| Frequency Range | 252 kHz to 1030 MHz (Standard); 252 kHz to 2060 MHz (Option 002) |
Amplitude and Output Power Characteristics
| Parameter | Value |
|---|---|
| Level Accuracy | ±1.0 dB down to -127 dBm |
| Amplitude Resolution | 0.1 dB |
Environmental
| Parameter | Value |
|---|---|
| Operating Temperature | 0 °C to 55 °C |
Protection
| Parameter | Value |
|---|---|
| Reverse Power Protection | 50 W max (from 50 Ω source) |
Outputs
| Parameter | Value |
|---|---|
| Output Impedance | 50 Ω |
| RF Output Connector | Type N (female) |
Technology
RF / Microwave
Applications
Signal Generation