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1 vote

Coax in the wall, or around the house?

In addition to Tom's excellent answer which includes suggestions for an RF choke at the antenna feed point, be sure to ALSO place an RF choke at the transmission line|radio interface. The choke at the ...
webmarc's user avatar
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5 votes

Coax in the wall, or around the house?

Three things that matter here: Lightning! You need to ground the coax as it enters the house. This is difficult if it comes in via a vent. You should probably ground the antenna anyway, but you ...
tomnexus's user avatar
  • 10.3k
3 votes

Rfi in truck with HF transceiver when running

Just a few random ideas which might help. With the truck running, tune the 707 all the way down to 160 meters and measure the noise. Then turn on a portable AM radio, or the AM radio in the dash, tune ...
niels nielsen's user avatar
5 votes

Rfi in truck with HF transceiver when running

There are many things you can still do. Here are a few quick suggestions to start with: Proper antenna ground. A mag mount is marginally OK at VHF / UHF, but there isn't enough capacitance at HF. The ...
tomnexus's user avatar
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