Use the 722.6 and carry a spare TCU, it is quite small. If you are really EMP-paranoid, wrap the spare in foil.
The 722.6 is very reliable and the PRN2 failure mode will get you out of anywhere (in a G with low range).
Use the 722.6 and carry a spare TCU, it is quite small. If you are really EMP-paranoid, wrap the spare in foil.
The 722.6 is very reliable and the PRN2 failure mode will get you out of anywhere (in a G with low range).