I am working with a radio that has a RIT setting. It goes from -7 to +7 and are stored in single byte. The way they are stored, I've not seen before. Here's what they look like.

F9 = -7

FA = -6

FB = -5

FC = -4

FD = -3

FE = -2

FF = -1
00 = 0
01 = +1
02 = +2
03 = +3
04 = +4
05 = +5
06 = +6
07 = +7

I'm sure this is probably simple for some of you Python gurus, but I'm not seeing an easy solution.

What would be a good way to implement this into my CHIRP driver.

Thanks,
Jim KC9HI