A little green "F" and a red "H" for example.
#A marker on either end of the IFF slider as a reminder which end is friendly and which is hostile
solar yoke
thorny bridge
like an F for friend on one end, and and F for Foe on the other...
I'm sorry. Your request makes sense, but I had to stop an thing what "H" could stand for
native summit
Hostile.
hexed plume
instead of having F and H it could also be indicated with a red/yellow/green gradient running along the slider
terse venture
A little green "F" and a red "H" for example.
F for friend and F for foe.... wait....
brittle grove
Yeah, blame whoever invented the IFF instead of inventing the IFE or IFH.