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![]() wrote in message ups.com... On Feb 22, 12:16 am, "Sal M. Onella" wrote: It was a bust. :-( They can be quirky..And the decoupling is pretty critical. I always preferred a base fed half wave for those reasons. You still need to decouple for best performance, but there are no "coax in the way" issues, etc.. I use a simple "gamma loop" feed. IE: single turn coil, and a cap if needed. Sometimes you don't need the cap, but if you do, 30-50 pf is about the usual value for 10m. I make those from a short length of coax.. I'm basically copying the feed system of the usual cushcraft ringos.. BTW, cushcraft sells a 10m ringo if one doesn't want to build one, or have the tubing. I will try decoupling and also try that feed. I have several commercial antennas but I tend toward building them myelf. I learned the hard way about the three types of copper pipe, K, L, & M. Until I got home and hit google.com, I didn't know to shop for the more economical Type M and paid premium $$$ for Type L. I don't want to think what Type K would have cost. "Sal" |
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