Originally Posted By: ki4buc
... Everyone knows its really the last resort for communication in the U.S.

Well, unless you can use homing pigeons, or still have your cheat sheet on smoke signals.

Or if you have a heliograph ... and know Morse.

Let's see now ...
2m transciever? Check!
Heliograph? Check!
Morse? ... oops.

I'm not the only ham radio operator in that situation, either, based on this
(very nice) YouTube video from Britain (filmed at Bletchley Park , no less!)

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A signal mirror should backup a radio distress signal, like a 406 MHz PLB (ACR PLB) (Ocean Signal PLB)