Thank dhouston for your reply. I'm looking at on your site that recommended.

So i did some measurements with the oscilloscope, and the output pin of the receiver (AC-RX2-Aurel CS) i have this signal.

Remote control signal.txt

The signals are 2 because the remote has 2 channels.
What kind of encryption is it?
How do i implement a decoder in the pic?

Thanks

Fabbri Mattia