YES! i had an electronic air cleaner on my furnace too. it is now GONE! no
way around the noise that i could find. jack ak7o
----- Original Message -----
From: "Guy Zebrick" <gwzmcz@earthlink.net>
To: <tentec@contesting.com>
Sent: Sunday, November 30, 2003 9:23 PM
Subject: [TenTec] man-made interference
Just a note, perhaps this will help someone -
I've been dealing with noise on different band - a slow drifting crud, about
8kHz wide. It sounds a lot like the drifting crud I got from a 12v/25A Radio
Shack switching power supply that I owned for about an hour before I took it
back.
Tonight I found the source! I have a Honeywell electronic air filter in my
return air line. It has a high voltage DC switching power supply to charge
the elements.When I turn it off - the noise is gone!
I don't think line filters will help - I'm might try running a separate
ground line to a water pipe, but I think I'm stuck with having to turn off
the device when I operate my ham radio.
....so, don't forget those electronic air filters when you're trying to find
electrical noise. 73's
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