Hey everyone,
This may be a foolish question and I may be missing something, but I have a question regarding using a Network Signal Analyzer (Specifically, I'm using an SRS SR780)
I'm testing a transimpedance amplifier and instead of using a photodiode, I'm using a capacitor and a triangle waveform to generate a pulse of current. See the link below for the test setup. The second picture is that of a narrow span and the third is for a full span. My test signal is a 1kHz triangle wave. I would expect to see the 1kHz signal with a narrow pulse and then all the odd harmonics. But when I go into full span mode, my 1kHz signal is rather wide (if you measure from beginning to end of transition for that signal. When I reduce the span, the width of that signal gets narrower and narrower. Ultimately showing something that I would expect.
http://imgur.com/a/nHE1vAm I not using the instrument properly? Not reading it correctly? Using the wrong setup on the instrument?