On Sat, Oct 16, 2010 at 9:54 PM, Dale Svetanoff <svetanoff@earthlink.net>wrote:
> I have been running the Astron SS-30M for several years now with NO
> problems whatever. (See QST back in 2002 - can't recall the issue - for a
> review of the Astron, and other, switching power supplies. The ARRL did an
> excellent job of testing several popular models - most of which are still
> available. Read the reviews then buy. That's why I bought the Astron; it
> was the lowest noise unit they tested.)
>
> Based on that QST review I bought the same SS-30M for my new FT-950. I was
hearing noise every so-many KHz up and down all the bands and wondered if it
was the power supply. I phoned the dealer (KJI Electronics), and Gene right
off asked me if I was feeding my antenna with ladder line. I replied "Yes,
and it runs through the wall and connects directly to the transmatch on my
desk." He said that was the problem. If I was running coax, he said, I
wouldn't have that noise. So I exchanged it for the old fashioned
heavyweight RM-35M and I have no noise issues with it.
Howard N7SO
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