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Ross Archer wrote: Welp, my Wellbrook ALA1530 died six months back, fairly ending my SWL listening until recently. I'm making do with a random wire and a high quality matching transformer, which is a lot noisier, but at least I could hear Radio Australia doing an excellent feature on the planet Mars. Does anybody else make good-to-great quality outdoor loops? I'm still sold on loops because they seem to deliver better S/N ratios in my (electrically noisy semi-industrial) location. If you have a yard make a large horizontal loop. You would want it to be over 200 foot to work well down to 5 MHz. A 110-foot loop, which is just 27.5 foot a side (square) would work for the 31-meter band on up. You would need at least 3 and preferably 4 mounting points. Put a 50-ohm resistor across the ends of the loop and the coax across the resistor. This antenna is simple, cheap and better than a random wire. -- Telamon Ventura, California |
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