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Published on Apr 24, 2011
YES-YES, I am still here. The videos have been slow in coming as I have not had much time for the hobby. However, due to many requests, I am offering this brief video displaying one of my fun magnetic loop antenna projects. This little wonder has been performing much better than I expected. The major weakness is that of the capacitor. To tune the antenna, I simply spin one of the capacitor plates in or out as it is welded to a threaded rod. This is a weakness for 2 reasons, 1) I am sure that there must be huge loses in the capacitor between the treaded aluminum rod and the loop. 2) I can only tune while in receive, so I have to adjust for the loudest noise/signal, then check the SWR. From this point to tweak it for the best SWR, I must un-key, then give one of the plates a slight turn, about 1 or 2 degrees at a time. I can get the SWR to 1.0:1 for any given frequency within the operation range, provided I have enough patience ;-)