receiving loop tuning

[ve6pg]

..ok..i was wondering if any of you have sane thoughts, on the matter of tuning a coaxial loop antenna for peak. most of these things have the capacitor at the loop. that's ok for one spot in the spectrum, but when you tune away from there, the receive drops-off rather quickly.
 so, what if the loop was tuned indoors, with a tuning network in the shack?..might the length of coax affect things?...

..tim..

..sk..

[Ed/KB1HYS]

better to put a small dc motor on the shaft of the tuning cap at the antenna.  DC can be fed along the coax to retune the antenna as needed.  A small battery powered screwdriver can be converted to do this and is ideal since it already has the fwd / rev capability.

[ke7trp]

Rich has a remote kit that you might be able to buy or get a parts list to build.  His loops are made for transmitting but the motor setup would work well. 

http://www.hlmagneticloopantennas.com/

I was going to try this $14 stepper motor controller with a cheap stepper motor to tune a cap outside on my antenna.  Never got around to it.

Search ebay for

170851588867

C