I've had a strange problem develop with my JK 404C 4 element tribander. - The signal is sometimes attenuated. Per my Flex 6600, I'll show a noise floor of -130db, when I transmit a bit the noise fl
Have certainly seen similar things here.... likely a coax connector not quite tight or has oxidation - but usually a small dose of transmitted RF will break thru the oxidation layer and make it work
It sounds like a bad connection, a little RF causes it to temporarily reconnect. The easiest way to locate the problem is to start bypassing things when in failure mode until the RX signal returns. I
Things to check? Yes. Every connection in the chain from the radio to the antenna. I too have had this issue on antennas and all types of things with connections and relays. Thanks 73 Jim W7RY - The
I have had this problem as well. Its usually a bad braid to connector - through oxidation or temp cycling over time. Hanging on by a thread and the RF affects the connection. Never shows bad on trans
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 18 Mar 2019 11:07:14 -0300
Rich, I would check the connectors on your feedline run. Sometimes a connection running RF is made but on RX the connection opens to the point that the induced noise appears. The same could be true w
Other related things to check: - A female UHF connector, barrel, etc. where the center conductor has expanded through use. - Are you powering a remote antenna switch through the same coax ? A loose c
I had a driven element on my 3 ele 20-6 mtr Steppir that I never resolved but it would lose RX signal strength. Bypassed coax, checked for fractured solder connections in the EHU (think that is what
I had a problem on 20 meters similar to that. I could not figure out what it was back and forth to the tower with burnishing the relays in the relay box, replacing certain cables, etc. No help. I swa
Usually the problem is with the connector that is the most difficult to reach:) GL John KK9A -- I had a problem on 20 meters similar to that. I could not figure out what it was - back and forth to th
The WX cooperated yesterday evening so I could climb the tower. I disconnected the coax to the balun as well as disconnecting the balun from the feed point, then reconnected both. During the disconne
Rich, I am glad you found the problem, but my guess is that you only temporarily fixed it. My experience is that this stuff re-emerges, usually after temp cycling a bit, sometime a number of months l