View Single Post
  #3   Report Post  
Old October 6th 07, 05:48 AM posted to rec.radio.amateur.antenna
Dave Oldridge Dave Oldridge is offline
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 234
Default Antennas guilty of RFI?

"ZL2DG Dave" wrote in
:

I believe antenna feedlines can be a source of rfi.The radiation from
an antenna should be much greater than any feeder radiation_why the
emphasis on feeder radiation? 73 de ZL2DG


Because feeders often pass near consumer electronics.

If the feeder has no antenna currents on it (like my feeder years ago when
I had a vertical 250 feet out from the house), then the antenna, while
radiating much more than the feedline is far enough away that the inverse
square law protects the consumer electronics.

Of course this depends on antenna placement.



--
Dave Oldridge+
ICQ 1800667