[chirp_devel] TYT TH-8600 Programming Protocol Reverse Engineering

[Hisen Zhang]

Hi,

I wonder if anyone is working on (or interested in) deciphering TH8600 programming protocol. It looks rather weird to me.

First of all, the downloaded bit stream for each request does not correspond to each channel. Modifying channel 2 for instance, may result in the fifth request response change.

Second, even the same channel setting will result in different bit stream, despite the address and check sum. 

Third, I don’t really get the frequency representation. It’s neither lbcd nor uint (I think). I cannot assert here because I am still very confused about the two issues above.

I am new to protocol reverse engineering so I would like to learn if I just made the problem complicated. If anyone is interested in I will share captured serial bit stream. Big thanks.

Best regards,
Hisen (Zhemin) Zhang