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Bill wrote:
Yes I have lol ![]() good but sometimes at night it gets noisy. It is my understanding that an external AM Loop antenna will recieve better than an internal loop that comes with a small portable. I also have heard that a Loop picks up less noise than an internal ferrite loop or random wire would. I have heard that these external AM Loop antennas used to be quite common in the good ol' days. But that they fell out of favor with most people to be replaced with the internal ferrite loopstick antennas. If anyone has some detailed plans for these older styled external AM Loop antennas I would really like to get ahold of them. Thanks in Advance ![]() A friend of mine makes them. He uses the variable capacitor out of old AM radios. He winds a number of turns of #30 wire on a one foot diameter round piece of Styrofoam. He first determined the number of turns needed by GDOing the coil and cap in parallel to about 550 kc. Seems to me he used 20-30 turns. Just sitting it close to the radio and tuning it to resonance solved his reception problem. It was resonant and directional and its field was all the internal ferrite loop antenna needed in his case. CCrane sells similar loops under the trade name Select-A-Tenna. http://www.ccrane.com/antennas/am-antennas/ -- 73, Cecil http://www.w5dxp.com |
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