🔍 Analyze Transmission Protocols

One day, this will be a nice guide. For now, it is just a collections of notes

In Universal Radio Hacker (urh), record the signal. It is most likely on one of the following frequncies: 27M, 915M, 433M. Do not forget the "M".
After recoding the signal, delete all the empty spaces (as they use up a lot of RAM and harddisk space) and save
In view "spectrogram" apply a bandwidth filter around the yellow line.
Select ASK (for on-off-keying) or FSK (when the signal jumps between two frequencies)
correct noise value which tends to see everything as noise
View Demodulated and pull the green-red-devider to the correct position: Careful do not confuse a message and the pause between two messages as 1 and 0, but make sure to use the correct zoom level.
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Please have a look at the program structure to find the source code of implementation for known receivers.