HP-Agilent/Keysight 8656A

100 kHz to 990 MHz Synthesized Signal Generator

The 8656A is a programmable synthesized signal generator that combines performance, quality, and economy, covering the 100 kHz to 990 MHz frequency range.

Offering 1 dB level accuracy and 0.1 dB resolution with calibrated output levels over the +13 to -127 dBm range, the 8656A provides precise output control.

In addition, its modulation capabilities include simultaneous and mixed modulation modes from internal (400 Hz and 1 KHz tones) and external sources.
Datasheet