The Tektronix SD-51 Trigger-Countdown Head allows triggering a CSA 803/11800-series scope on signals from 1 to 20 GHz, at less than 6 ps RMS jitter.
The SD-51 synchronizes a tunnel diode oscillator to a subharmonic of the input signal.
The project manager for the SD-51 was Murlan Kaufman.
|Trigger Bandwidth||1 to 20 GHz typical|
|Minimum Sensitivity||100 mVp-p|
|Maximum input Voltage||5 Vp-p|
|Input Impedance||50 Ω//1 pF|
|RMS Jitter||6 ps including instrument mainframe and SD-24 jitter|