Decoding data from Mavic 2 Pro

[Junior-sdr-py]

Good evening. I am trying to run your code for DJI Mavic Pro. I set legacy = True. I see that the packet is detected and demodulation is attempted. But the decoding gives an error and I don't see any results at the output. Please tell me in which direction I should look for the problem? Maybe recording IQ will help?

[H-a-r-sha]

Hey @Junior-sdr-py , hope you're doing well! Did you manage to resolve the decoding error with DJI Mavic Pro in legacy mode? I'm facing a similar issue—packets are detected and demodulated, but decoding fails due to an array length mismatch. In Packet.py, the line 90
yfake[i*NFFT:(i+1)*NFFT] = itfft(self.symbol_equalized(symbol_f, self.channel))
throws an error because cp_lengths is 8 for legacy, while len(symbols_freq_domain) is 9. yfake is declared as 8 * 1024, but the loop runs 9 times, leading to an out-of-bounds issue. I realized this variable isn't used anywhere other than for plotting, so commented it out. But still there is a error in decoding part as "UnicodeDecodeError: 'utf8' codec can't decode byte 0x96 in position 19: invalid start byte"
Could you help me with resolving the said error?

[YGspike]

Hello, can you share the .raw file generated by the code？ just for test. thanks!