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71708A Microwave Source, 2.4 GHz to 25.8 GHz

Product Status: Obsolete | View Service Options
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The Keysight 71708A microwave source makes an excellent substitute LO for your radar system, phase noise measurement system, or test source for microwave receiver testing. It provides the lowest AM phase noise of any commercially available microwave source and provides up to +16 dBm of output power. The standard Keysight 71708A has a frequency resolution of 600 MHz. If finer frequency resolution is required, Option 002 and a Keysight 8662A synthesized signal generator can be added to provide resolution of 0.1 Hz. Components of the Keysight 71708A include the Keysight 70428A microwave source module and the Keysight 70004A color display/mainframe.


  • Microwave source with excellent phase noise
  • Output frequency range 2.4 to 25.8 GHz
  • Frequency resolution of 600 MHz
  • Optional frequency resolution of 0.1 Hz