The PIN Diode/RF Oscillator Controller is a controller that provides control and modulation signals for the Voltage Controlled RF Oscillator, Model 9511-1, or the PIN Diode, Model 9538.

When the controller is used with the Voltage Controlled RF Oscillator, a frequency control knob allows variation of the RF Oscillator frequency from 9.6 to 10.6 GHz (typical variation range). An internal 1 kHz square-wave signal permits amplitude modulation of the PIN Diode bias voltage. A frequency modulation input can be used for receiving an external modulating signal (e.g. speech or music information).

When the controller is used with the PIN Diode, a bias control knob allows adjustment of the PIN Diode bias. A modulation input can be used for receiving an external amplitude modulating signal (audio, video, etc.) having a maximum bandwidth of 6 MHz and a maximum amplitude of 1 V peak-to-peak (e.g. an NTSC signal). Current and voltage terminals allow measurement of the PIN Diode bias current and bias voltage.