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Non Radio covert communications
20 August 2013, 08:06,
#2
RE: Non Radio covert communications
(20 August 2013, 07:59)Lightspeed Wrote: Employing a mini laser diode would allow the device to function in higher ambient light but is not really suitable as it'd be damaging to the viewers eyesight.

If this is a better idea, the laser could be read via a mirror onto paper

.... I think the idea is sound, but what advantage does it have over a good torch?
A major part of survival is invisibility.
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Messages In This Thread
Non Radio covert communications - by Lightspeed - 20 August 2013, 07:59
RE: Non Radio covert communications - by Highlander - 20 August 2013, 08:06
RE: Non Radio covert communications - by Lightspeed - 20 August 2013, 08:42
RE: Non Radio covert communications - by bigpaul - 20 August 2013, 10:58
RE: Non Radio covert communications - by Lightspeed - 20 August 2013, 11:58
RE: Non Radio covert communications - by Prepper1 - 20 August 2013, 11:25
RE: Non Radio covert communications - by I-K-E - 20 August 2013, 14:01
RE: Non Radio covert communications - by Lightspeed - 20 August 2013, 14:20
RE: Non Radio covert communications - by Highlander - 20 August 2013, 14:50
RE: Non Radio covert communications - by Lightspeed - 20 August 2013, 14:55
RE: Non Radio covert communications - by Lightspeed - 20 August 2013, 17:41
RE: Non Radio covert communications - by Steve - 20 August 2013, 18:55
RE: Non Radio covert communications - by Lightspeed - 21 August 2013, 12:06
RE: Non Radio covert communications - by Lightspeed - 25 August 2013, 06:57
RE: Non Radio covert communications - by Highlander - 26 August 2013, 18:22
RE: Non Radio covert communications - by Jonas - 25 August 2013, 17:55
RE: Non Radio covert communications - by Lightspeed - 26 August 2013, 19:38
RE: Non Radio covert communications - by Mortblanc - 28 August 2013, 20:21
RE: Non Radio covert communications - by Lightspeed - 28 August 2013, 21:51
RE: Non Radio covert communications - by Mortblanc - 30 August 2013, 18:29
RE: Non Radio covert communications - by Midnitemo - 30 August 2013, 18:35
RE: Non Radio covert communications - by Midnitemo - 30 August 2013, 11:37
RE: Non Radio covert communications - by Lightspeed - 30 August 2013, 11:42

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