Squelch and recordings [improved in v1.561]
I don't know how feasible this is, but here goes anyway.
This morning I've been trying to capture some I/Q recordings of an elusive data signal that only appears once in a while.
I have been making hour long recordings and then searching through them to see if there has been any activity.
This is fairly tedious, and I had hoped to be able to use the squelch to trigger recordings, however the problem in doing this is that the first fraction of a second, which usually contains some sort of a sync sequence is missed.
I wondered, if it was somehow possible to incorporate a short duration (<1 second) buffer containing 'non-squelched' audio, which could be used to recover the pre-squelch portion and it be included in the recording ?
This would be a bit like the 'pre-trigger' recording period that is common in many CCTV systems, allowing you to see what has initially caused a motion sensor to activate 'before' the recording started.