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#11
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I do have 1 other option. I have some 50' trees that would stretch about
130' apart. The issue is they are about 200' from the shack. Can I run that much coax? KC1DI wrote in message ... Hi Doug, I'm Running the Windom ( OFCD) it identical to what your saying. but you'll find that the coax needs to come off the antenna in pretty much a 90 degree angle. ohterwise you will end up with lots of fedline radiation which will cause problems in the shack. 73 Dave kc1di Can you give me an indication about how long a lead I need before running the coax back toward the house and into the radio? I'm going to run the coax up the house and out to the feedpoint. Doug Hi again Doug, Was out of town so did not get your question for a few days. You should run it away from the antenna at 90 degrees for about 1/4 wave if possible. on 80M that would be about 66 ft. but as far as you can in any event. some claim choke balun at 22' down the feedline works well Mine is about 30' then a choke balun then about 75' to the shack and it seem to work for me. 73 Dave |
#12
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By strapping the coax to the earth,ground or negative (or whatever) part of
the aerial,you will effectively cancel out any gain or effect the 20' part had. Obviously you dont have the space for a 'T' where the coax is the bottom bit of the 'T' and the top Parts are say 20' each way give ot take? If thats no good,then how about feeding the coax to a longer wire closer to the house and having the ground wire going down to earth,vertically? If you could have the long wire inclining up the garden somewhat,it would be effectively an inverted-v antenna.Keeping it horozontal would leseen the tendancy to throw signals back over your house however. Does this help? G7EBY "Doug Birky" wrote in message ... I'm putting up an offset dipole. I'm attaching a 4:1 balun. I'm running RG-8 to the balun. The dipole will be attached at 20' and the other end will be about 40'. My question is can the coax be tie-straped to the short end of the dipole antenna wire and run back with it toward the houes? This is basically to keep a big loop from hanging down and also keeping the wife happy since it would look much cleaner. I didn't know if this would have a large impact on operation or not. 73 Doug / KC8YEC |
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