View single post by passnthru2
 Posted: May 9th, 2014 05:51 PM
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passnthru2

 

Joined: May 6th, 2014
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 I have built several simple but totally amazing AM antennas out of crossed sticks and 150' of phone wire.. add an variable air capacitor and you can tune the antenna to a razors edge.. the loop antenna is directional. I put mine on an old Xmas tree stand. my best was 3' square on a side. I made a 14" round tunable antenna.. you didn't have to wire it to the AM radio, i just put it near it or on top of the radio. twist it around to tune.

here is a source of AM transmitter/receiver kits. most transmit around 40', they run on mostly 9v batteries so you could take them easily to site investigations. most small kits are around $12.
https://www.google.com/search?q=diy+am+radio+transmitter+KIT&tbm=isch&tbo=u&source=univ&sa=X&ei=mnJtU-SoOZTNsQSexICgCg&ved=0CF8QsAQ&biw=1229&bih=616

a diy with interesting tuning info..
https://www.youtube.com/watch?v=6ZsQNtZZ_V4

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amloop.jpg

Last edited on May 9th, 2014 05:53 PM by passnthru2