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Subject:
From:
Tom Behler <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Fri, 19 Feb 2016 23:43:39 -0500
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Hello, everyone.

 

I know I'm going to get a lot of different opinions on this question, but
here goes:

 

I have been noticing lately that my RFI problems seem to be getting worse
here at the home QTH.

 

In particular, they seem worse when I'm on CW, and appear on different bands
to different degrees.  The fact that the problems seem worse on CW does not
surprise me, due to the nature of that mode in comparison to SSB, for
example.

 

What does baffle me is that the problems seem to be getting worse in
general.

 

For example, when I was playing around a bit in the ARRL International DX CW
contest for an hour or so tonight, I tried going back to a few stations with
approx. 500 watts, using my MFJ998 and ALS600 with the TS590, and I set off
the carbon monoxide detector downstairs on the main floor of our house.  On
another occasion earlier in the month, I was running 100 watts on CW on 160
meters, and I tripped one of the circuit breakers in our house, and caused
my wife problems when she was using her laptop computer in another room.

 

I have checked the common ground point on my MFJ feed-through panel, and the
ground cables for my TS590, MFJ998, and ALS600.  All seem to be solid, at
least here in the shack.  The common ground point on the MFJ feed-through
panel has a cable outside my second-floor shack window that runs down to a
copper ground rod that is connected to the ground on the power box to the
house.

 

I have not checked the outside ground connections at the ground rod, and may
try to do that tomorrow.

 

My initial thinking is that RF is either coming through the house electrical
lines, through our cable modem and router, or both.

 

I am planning on investing in some RF chokes as Steve (KW3A) has suggested,
and possibly one or two Buxcom Line Isolators like Butch uses, but am
wondering if I'm missing something obvious that I should check into first.

 

Any thoughts would be appreciated.

 

Tom Behler: KB8TYJ

 



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