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Non Radio covert communications

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Non Radio covert communications
28 August 2013, 20:21, (This post was last modified: 28 August 2013, 20:24 by Mortblanc.)
#22
Mortblanc Offline
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RE: Non Radio covert communications
The reinvention of the wheel;

http://electronics.howstuffworks.com/telephone4.htm
originally telephone networks were hard wired and battery powered.

One does not even need the surplus army field sets, just a few old phones, some wire and a solar charger for the battery.
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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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