Non Radio covert communications

[Mortblanc]

(28 August 2013, 21:51)Lightspeed Wrote:

(28 August 2013, 20:21)Mortblanc Wrote: The reinvention of the wheel;

http://electronics.howstuffworks.com/telephone4.htm

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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.

Hi Mortblanc, you;re right telephones are a fairly simpl and discreet way of communication.

I'm looking at range of between 1/4 and 1 1/2 miles mostly across agricultural land, to observation locations beyond the boundaries of our property. It would be very hard to run wires between these locations and even if I were able to, they would almost certainly get cut by farming activities.

We are already using ultra low powered radios succesfully. I am considering alternatives thet areeven more discreet.

Use what you have and develop a simple code. That is the system used by militaries world wide for transmitting non-encrypted messages.

Simple call signs and code words work fine.

The U.S. Army has an SOI booklet that has rotating codes so you can change complex codes daily.

As for "taking the low ground"???

Consider this; If you control the high ground you also control the low ground!

It is simply one of the facts of life.

Keep in mind that I did say CONTROL the high ground, not just sit on it like a knot on a log.