[RFI] A BUZZ on 160!

Tim Duffy Tim Duffy <tduffy@sygnet.com>
Fri, 01 Dec 2000 21:23:18 -0600


Hi Bob!

I have seen this problem and it is either one of your computer power supplies
or your neighbor's. Mine was my neighbor and I fixed it with a W3NQN AC line
filter on the neighbor's computer.

W3NQN filters are available through WX0B now.

I tracked my noise down with my Icom R-10 handheld scanner.

Hope you find it Bob!

73,
Tim K3LR



> >From k3lr@contesting.com Thu Nov 30 06:59:39 2000
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> From: "Bob Garrett" <rgarrett@sunlink.net>
> To: <rfi@contesting.com>
> Subject: New Interference On 160 and 80 Meters
> Date: Thu, 30 Nov 2000 07:09:05 -0500
> Organization: North Central Sight Services
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> Hiya RFI Experts,
>
> Last night I turned on the rig about 9 PM to find a raspy unstable carrier
> smack dab on 1833 and aprox. every 32 KHZ on 160 and from the bottom of 80
> meters on up.  The noise is much louder on 80 than on 160 meters.
>
> Sources?  Computer power supply?  A switching power supply for some exotic
> Christmas decoration?  Any and all input appreciated.
>
> 73, Bob K3UL


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