Could a mirror at night could be useful if the reciever team knows where to look, and provides artificial sunlight (light beams) onto the area?

Solid

Face to face meeting, or a runner.

Point to point hard wire with encrypted signal.

TR

Thank you Reaper. It's interesting how much military signalling techniques mimic those used by animals. I believe the most secure form of communication between animals is considered non-communication: ie, the pre-conditioned nature of the animals. It's most often found in pack animals. I suppose that its human equivalent would be the hard training of small groups to the point that certain actions became intuitive, I suppose like an Immediate Action drill.

Solid

I remember using a strobe inside a 203 tube to make it directional.
ISTR it was SOP for people.
The point about being mistaken for tracers is well thought of now though!
Anyway , all signals must be prearranged for just about anything or you are fucked.
Hi, I'm signalling, but you don't know what I mean, unless you're on my team?, DOESN'T work.
Mirrors are awesome, unless, broken...
Day/night flare is de rigour (or something), you want one.
laters

LOL.

Turning off my buddy's air also works really well at getting his attention.

The light I spoke of yesterday is the SE-11. It was part of the DZ Kits and was primarily used for ground to air signalling to identify un-marked DZs LZs and water LZs. It was affectionately called the "Ray Gun" because it looked like one. It came with a supplementary red lens and red goggles which made it easy to see at night, if it were aimed properly.

I ran accross some interesting, mostly funny, stories of the ray gun last night. One was how an A-Camp was saved from a planned NVA attack because of someone playing with the ray gun and a FAC mistaking the light for ground fire. Air Strikes were called in and beaucoup dead NVA were discovered the next morning. Thes were having a pre-victory party. They had their parties early so all could attend, even if KIA in the operation.