![]() ![]() Ideally I wanted a split-stator capacitor but what I found was a normal variable capacitor but it would do for an initial test. Having had a quick search of my boxes of “old radio stuff” I found a very large air spaced capacitor. Also across this would go the air-spaced capacitor. With some careful cleaning I had a basis of a neat looking antenna…įor mechanical strength and to maintain rigidity I used some 1/2″ thick perspex to make an insulator to bridge the slot that would be cut into the rim. This is still very much a “work in progress” project and will be updated as new things occur. I now had something to base my first magnetic loop antenna on, what follows is the results of my experimentation, both good and bad. That was until I remembered the article I’d read about using an alloy rim of a bike wheel to make a loop antenna! Needless to say not all the parts of that wheel went into the skip. The reason for this interest was that my son (2E0KGG) had moved to a new QTH and to help get him active on one or more of the HF bands we needed an antenna design that was suitable for use indoors or on a balcony.Īlso around this time the station manager (XYL □ ) had me sort out the garden shed and one of the items of junk to be discarded was an old bike wheel. I’d spent some time reading various articles describing the construction of magnetic loop antennas. ![]()
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