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try taking a look at the ubiquitous 555 timer chip - one could rig the thing
so that it would key up a radio upon recieving a carrier that was above a certain level - something like taking the signal from the s-meter and using it for a trigger signal works real well, and ensures that only the local area gets qrmed. naturally, the interval it keys up for is up to the builder, with the 555. Another interesting thing is , that if this is placed real close to the guy's house, very little power will be needed to operate it. a motorcycle battery would last a long time at a 100 milliwatt level.......... and if close enough, would give him 20-over s-9. Think i remember someone doing this once, but cant remember just who it was... G "Guy" wrote in message m... when I lived in Reno, NV there was a person who was not very friendly on the radio. He was always getting drunk and once he was full of liquid courage, would swear, throw dead carriers, drive the drivers and us locals crazy. So a cb/ham operator made a device that was real small,,,it was placed in close proximity to his house, within 1/4 mile. When he would key up on ch-19, it would start a audio carrier that was intermittant,,it was like a pulse for 5-7 minutes, he would key up again and once again get this pulsating tone, is the best way to describe it. Needless to say he cleaned up his act, and started to come around. So now I am in willamette valley and have the same problem. the person who made that "toy" has passed on,so now I am looking to get something of the same concept made. Any ideas? JPT. |
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