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Over the years I have "popped" several baluns, including "hi-power" types. This was while running 2KW into moderately high SWR....(through a tuner) In each case the high voltage burned the winding or ferrite bead. So far the Force 12 balun has survived on my C-3. Although I only run 100W on the WARC bands. Jim > Hello, > > I have been using a Force 12 C31XR with very good results at 100 feet. > > Recently, I noticed that my SWR climbed up to 5 : 1 on all three bands. > > I have semi rigid feedline going up the tower, and then I have a 15 foot run > of flexible RG-8 coax between the semi-rigid feedline and the Force 12 balun > that is mounted to the boom. > > Initially, I noticed that the two parallel feed wires between the balun and > the coil were touching each other. So I climbed up the tower and separated > them to the original spacing which was about 1/2 to 1 inch. > > However, I am still experiencing the high SWR on all three bands. > > The only two areas that I suspect are either the 15 foot run of RG-8 coax > between the semi-rigid coax and the balun, or possibly the balun itself. > > Is it possible that do to a nearby lightning storm or just plain failure, > that my balun may have gone bad?? I do not see any visible damage, however, > the balun is sealed. > > Any suggestions? > > Thanks, > > Jim > K4PV -------------------------------------------- Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. Force12 Web Site: http://www.force12inc.com To Submit Message to the List: Force12Talk@qth.com To unsubscribe and view the Message Archive: see http://qth.com/force12/list For problems with the list: contact n4zr@qth.com |
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