Tektronix let me borrow one of their mixed-mode scopes that has a spectrum analyzer and a full-featured scope in the same box. It's cool because you can watch one domain and trigger of the other. You can watch them at the same time and stop them both to look at the frequency domain during a time-domain event. Very cool.
I'm getting this weird noise on the spectrum analzyer side. It is a set of two large symmetric peaks centered around 2.5GHz.
The signal presists even when I terminate the input with a 50 ohm dummy load. I have another spectrum analyzer and have confirmed there's no noise in the area.
I'm guessing I'm doing something wrong because this is a new scope.
