Signalling and other field expedients ways to communicate

[Silent Bob]

Figure I'd put this PDF out for those who don't already know how to do this stuff.

 

[VladK]

Found this to be extremely useful!

 

[jontte]

thank you again.
have you ever used the old morse code?? one of my sons wondered what it was...well only thing I could teach him at that point was the SOS..

 

[eireguy]

Very useful . Thanks