The Gunn Oscillator Power Supply is intended for use with the Gunn Oscillator. The output of the Gunn Oscillator Power Supply connects to the Gunn Oscillator, via a power switch inside the Data Acquisition Interface.

The voltage control knob on the Gunn Oscillator Power Supply allows users to change the voltage applied to the Gunn Oscillator and so vary the output power of the Gunn Oscillator's output signal. The frequency of this signal cannot be varied and is fixed at approximately 10.5 GHz.