[TVI-RFI-EMI] rfi on 40 meters

[Dan Violette]

Replace keyboard, mouse with old ones to see if either were receiving the
signal (disconnect internet and other cables too).  Narrow down the problem
by removing things until not a problem, then add back until you know where
to go next.  /Dan KI6X

-----Original Message-----
From: TVI-RFI-EMI [mailto:tvi-rfi-emi-bounces at mailman.qth.net] On Behalf Of
Bill
Sent: Sunday, October 12, 2014 8:59 AM
To: tvi-rfi List
Subject: [TVI-RFI-EMI] rfi on 40 meters

Very strange that I have rfi on 40 meters only it manifests itself in my
inability to do anything on the computer running my logging software during
a 40 meter transmission.

ferrites on all connecting wires/cables

years ago my Elmer suggested using a counterpoise, a half-wave wire
connected to the ground lug of the radio.
That worked back then.
Many antennas ago.

But the problem has resurfaced so I did indeed cut myself a 33' hung of
wire, put a lug on the end and ran it through the wall of my basement shack
and across my back yard lawn.

No luck, still have that freeze up of the computer when operating 40 meters.
(Incidentally 40 is the ONLY band I have this problem on)

Rig is a Flex6K and the rfi freeze up of 40 meters occurs all the way down
to 10-20 watts.

Any suggestions people?

PS; the antenna is a 80-40 trap dipole up in the clear with center supported
from a yardarm on the tower mast. 10, 12, 15, 17, 20 yagi is above the
yardarm. 6 meter yagi above that.

-- 

A small leak can sink a great ship.-Benjamin Franklin
---------------------------
W9OL-Bill H. in Chicagoland

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