Quote:
Originally Posted by loopstick
For the remote tuning did you use some geared down motor (stepper, etc)? Right now my loop's in the house but I would like to have a smaller weather-proof one mounted in the back yard on top of a 16-foot pressure treated post and as far away from background noise as I can get it.
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I used a varactor tuner similar to the one shown in this article:
http://www.randombio.com/loopantenna.html
With 1Meg resistors, I picked up "hum" on some stations, likely due to nearby power lines in my area. If I lowered the resistance enough to eliminate the "hum", the tuning of the antenna became very broad (low Q)... so I installed the manual tune box, seen above the rotor.
jr