You must have a big attic . You're almost certainly radiating RF from the antenna back into the radio . Any way to get the antenna outside ?
You must have a big attic . You're almost certainly radiating RF from the antenna back into the radio . Any way to get the antenna outside ?
Yeah, big attic. Like 30 ft across and 70ft down or so. Working on getting the antenna outside, but will have to wait for the big run of cable to come in first.Originally Posted by W5RB
Do you get RF burns off of the chassis when key down?
Nope. Which is why I never bothered with an RF ground. I just figured it would introduce more problems.
In the case of second floor shacks, I agree.
I'm still leaning towards RF feedback into the shack / radio / power supply on 20m. Possibly something attached to the radio or tuner that is close to 1/4 wave (16 feet) in length. Proximity to antenna is also not good.
"People Who Don't Want Their Beliefs Laughed at Shouldn't Have Such Funny Beliefs" -AD5MB
"If someone tells you he believes in and talks to an invisible bunny named Harvey, you put him on medication and a regimen of therapy. If someone tells you he believes in and talks to God, well, that's perfectly acceptable. Why that's the case is impossible for me to fathom." - WP2XX
Latest ClubLog entries.
Hm, several things come to mind here. I'm starting to think maybe I should remove the UPS from the link as well here, since the power for the radio + power supply + UPS power line comes close to 16ft of cabling in all (6, 6 and 6).
You might also try about six turns of coax where it joins the fan (if you have enough coax).
Plug the power supply directly into the wall. No surge suppressor, no UPS, nothing. See what happens.
"People Who Don't Want Their Beliefs Laughed at Shouldn't Have Such Funny Beliefs" -AD5MB
"If someone tells you he believes in and talks to an invisible bunny named Harvey, you put him on medication and a regimen of therapy. If someone tells you he believes in and talks to God, well, that's perfectly acceptable. Why that's the case is impossible for me to fathom." - WP2XX
Latest ClubLog entries.
Next time were on 75, I'll have to tell about a guy in the next town over who drove his upstairs nosey nieghbor crazy. Lets just say she kept hearing voices. over her TV. Her stereo. The voices The VOICES !
Posting Permissions
Reply With Quote