Kenwood radio memory file formats

[Lscott]

Does anybody have info on the various Kenwood radios memory file structure? Some of the radios seem to encrypt the contents past the header. On a couple of those it appears a simple “XOR” of the bulk of the file was done. How and where the software figures out the key, looks like a single byte, is save in the file I’m assuming. It doesn’t seem to remain the same if the code plug changes on a given radio model.

 

I’ve been principally looking at the combo analog/digital models TK-D340 (DMR) and the NX-340U (NXDN) models.