tdr

Prototype time domain reflectometer/sampling oscilloscope. 90 gigasamples/second equivalent time sampling with an actual sampling rate of 5 kilosamples/second.

The input bandwidth is TBD, maybe 8 GHz?

Following is sampling the falling edge of the TDR pulse, impedance of a BNC tee, and a 1.2 GHz sine wave with analog triggering.