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Date: 16 Jan 1998 22:02:55 -0000 From: Kay Ping <kping@nym.alias.net> Subject: Eternity - an alternative approach

In one of the messages on the eternity thread someone suggested using radio signals. This is an interesting approach which certainly deserves further attention but digital radio requires special hardware which I prefer to avoid.

There is at least one way to do it with standard equipment, course it must be 1-way only. The source takes the phone line from their standard 4800 modem and put it in the audio in (both should be 600 ohm, be shure to use a matching transformer for isolation). At the other end you do the same sort of thing but use the modem to decode the data. You can not have full-duplex with this method, half-duplex only.

Radio is also quite good at hiding the location of the transmitter - you tune your radio and the signals are just there, coming down your antenna. It takes special equipment to locate where they originated.

Yeah, another radio, a map, a ruler & pen, a omni-directional antenna, and a car. Check out the ARRL for various antenna designs. ____________________________________________________________________ | | | The most powerful passion in life is not love or hate, | | but the desire to edit somebody elses words. | | | | Sign in Ed Barsis' office | | | | _____ The Armadillo Group | | ,::////;::-. Austin, Tx. USA | | /:'///// ``::>/|/ http://www.ssz.com/ | | .', |||| `/( e\ | | -====~~mm-'`-```-mm --'- Jim Choate | | ravage@ssz.com | | 512-451-7087 | |____________________________________________________________________|