(on norway this means it actually happens every 20ms, ie for 20s,
which makes it a bit of a fudge really)
- 7f 7f 00 64 41 97 output bytes
- 01111111 01111111 00000000 01100100 01000001 10010111 as bits
+ ff ff 80 e4 c1 17 output bytes
+ 11111111 11111111 10000000 11100100 11000001 00010111 as bits
>1111111 >1111111 >0000000 >1100100 >1000001 $0010111 top bit: >/$ for pic
1111111 1111111 0 00000011 0 01001000 0 01001011 1 reorg bits for nmra: