[Elecraft] FM broadcast interference

[Brien Pepperdine]

When I got my (soon to leave) OMNI VI+ I was getting CBC radio (94.1) on
20 m cw portion for about 20 kc or so. A real drag! With antenna
disconnected it was almost just as load.. just came pouring into the rig.

I told this to my elec. engineer ham friend and he said 'do you have a low
pass filter on the coax'. Well, no. I had one on for ages but had taken it
off to do a test at one point on a rig with some trouble.

Put the lo pass filter on and the BCI problem was gone. Vanished.
Filters in the rig stock just did not block enough.
A low pass filter was of course standard station gear before
cable/satellite TV. I guess seen to be not necessary these days but in
fact many people in my area still have TV antennas on the roof, as do I.

So maybe borrow a low pass filter (Drake, Vectronics, MFJ) and put it in
line and see if it blocks
the BCI or not.

Brien Pepperdine
Amateur Radio Station VE3VAW
Toronto, Ontario Canada
ARCI QRP #8773 - NORCAL QRP "ZOMBIE"

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