[Elecraft] RFI issues

[Victor Rosenthal 4X6GP]

One thing to try is an old-fashioned lowpass filter, such as used to be 
common as a measure against TVI. If the problem is caused by the TV/FM 
signals, this should help.

The K3's t/r switch can be overwhelmed by massive signals. I had such a 
problem with a 50 kW AM BC station that's visible from my antenna. I 
solved it by switching from vertical to horizontal polarization, but a 
high-pass filter also worked.

73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/

On 18/02/2020 18:29, Andreas Wachter via Elecraft wrote:
> I live about 1.6 miles from some tall antenna towers broadcasting
> digital TV (KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on
> FM (KWPZ-FM) at 63 kW ERP on 106.5MHz - according to FCC info on KBCB
> and KWPZ-FM. Ever since I moved to this QTH a few months ago, I am
> unable to use my K3: solid S9+ noise on all bands using a makeshift
> dipole strung up on some trees outside my house. I’ve tried to locate
> the source of the RFI within my home but so far have been unable to
> locate any RFI emanating from within my home. Could it be that the
> TV/FM stations antenna towers, which are within direct line of sight
> from my house, might be responsible for the RFI?
> 
> 73, Andreas
> 
> K6AKW ______________________________________________________________ 
> Elecraft mailing list Home:
> http://mailman.qth.net/mailman/listinfo/elecraft Help:
> http://mailman.qth.net/mmfaq.htm Post:
> mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net Please help support this
> email list: http://www.qsl.net/donate.html Message delivered to
> k2vco.vic at gmail.com
>