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Loop motors
17 April 2015 | by Magnetic loop antennas can be very effective, small, antennas. They work well and are ideal for modes like WSPR, JT65, JT9-1 and PSK31 where frequencies don’t have to be moved much. Their main disadvantage is they are narrow-band so require retuning if moving very far in frequency and they are directional.
As ever, Steve G1KQH has been tracking down bargains – in this case motors that could be used to either tune or rotate loops.
Tune up your loop remotely, only needs a coupler and a bit of ingenuity which I know your not short of?
They also have 6 volt too
Just needs a simple adjustable Voltage regulator.
20RPM model on eBay
Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.
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