KC8FAS
Member
I just hooked up a Cobra 29lx and a new solorcon A99. When I checked the swr it was 1.1 from channels 1 about 36 after that swr shot up to over 4. Any suggestions on how I can lower it.
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HELP High SWR
- Thread starter KC8FAS
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There are tuning rings on the A99 that you can adjust. If it is truly new, then it was preset at the factory for 11 meter operation. Do you have the A99 mounted low to the ground or close to any objects?
KC8FAS
Member
I have the A99 mounted off the back porch railing on a pole. Its only about 5 feet off the ground and about 6 feet away from the house.
I've seen good antennas perform horribly when mounted below or next to large objects, like a house. Try to elevate it more and see if the problem persists. Like I said, those rings are preset at the factory and messing with them will probably just result in making your problem worse.
Baskt_Case
Member
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You said the SWR was 1.1 then shot up to 4.
Did you change anything at all between getting those two readings? Re-route the coax, move the radio somewhere else, hook up a ground wire, anything?
Usually when SWR changes drastically, something has changed.
Did you change anything at all between getting those two readings? Re-route the coax, move the radio somewhere else, hook up a ground wire, anything?
Usually when SWR changes drastically, something has changed.
KC8FAS
Member
I had another 5 foot section of pole so I raised the antenna another 5 feet. Looks good swr 1.1 all the way 1-40... thanks for your help.
Amazing how 5 feet can cause that much of a problem. Glad you got it going. I need to get mine back on the air!
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