I have two SDRs hooked up to two different computers, both radios tuned to the same frequency. They sample at 2Msps. What I would like to do is start up both (at 'about the same time'), and, after adjusting for the inevitability that one started before the other (cropping part of a signal), compare and see that I have the same signal.
I theorize that I won't, actually, have the same signal. Because while both radios are sampling at the same sample rate, the samples aren't captured at exactly the same time. Am I correct?
The target signal is flexible, but DVB, and FM radio stations are examples.