Since there are probably a lot of those out there, I thought I'd report
finding that my Seagate USB 3.0 2TB disk drive was a major source of
broadband RFI 160-10 meters. Oddly, the problem wasn't with the separate
power supply (presumably switching) but with the drive itself. By trial
and error, I found out that 14 turns of the DC power cord on a #31
toroid right at the drive end eliminated the noise. Reduced my noise
floor on 160 by roughly 20 dB, to the point that I can actually hear
atmospheric noise. Step-by-step hi
--
73, Pete N4ZR
Check out the Reverse Beacon Network
at <http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|