Example of OOK Decoding?


I am playing around with learning gnuradio and am using a garage door
opener to experiment with. I have gotten the UHD Source to work where
I can see the signal appear on a FFT Sink when I key the transmitter.
I am not suer how to go about the next step though, which is decoding
the OOK into binary. I am sure there has to be an example out there,
but I have spent quite a bit of time looking for an example on google
and have turned up nothing. If I could see a working example, I am
pretty sure I could figure it out (20+ year ham, so the concepts I
know, just translating them into SDR is weak).


Jay n8os

On Wed, Apr 18, 2012 at 10:42 AM, Jay R.
[email protected]wrote:

know, just translating them into SDR is weak).


Try the keyfob application found here:

It’s a super-simple OOK receiver which is set up to receive those
key fob transmitters and translate them into keypresses. Keep in mind
garage door openers use a rolling code encryption scheme for security,
similar to car security systems. If you manage to break it, keep it