[Elecraft] Strange Interference

Peter Pauly ppauly at gmail.com
Sat Jul 23 14:55:06 EDT 2016


I had a similar problem with a very strong noise that increased in
frequency. I wondered for weeks where it was coming from and low-and-behold
- it was the Astron SS-30 sitting on top of my ham gear. I was using it for
the 2 meter rig and other smaller stuff. I replaced it with a linear model
and all is well.

My point is, if you think you can solve this problem by buying a different
brand switching power supply, you may be disappointed.

On Sat, Jul 23, 2016 at 2:49 PM, Clay Autery <cautery at montac.com> wrote:

> My unit has an issue as well...  spikes/hash every 34kHz from 160m to 10m.
>
> I think there might have been a batch slip through...  because so many
> people report no noise.
>
> I am testing every one I can get and recording/reporting the serial
> numbers.
>
> I documented the issue to Elecraft and Powerwerx, and both companies, as
> expected of course, have been very responsive.
>
> NICE little package...  Hopefully, the issue can be solved or
> sufficiently mitigated.
>
> 73,
>
> ______________________
> Clay Autery, KY5G
> MONTAC Enterprises
> (318) 518-1389
>
> On 7/23/2016 1:43 PM, Terry wrote:
> > Thanks to all for the advice. I found the issue. It is my Powerwerx
> SS30DV
> > Switching supply. I thought this supply was a good one to not create
> > problems like I am having. Not sure if it is fixable or If I need to
> send it
> > in for repair.
> >
> > Very 73,
> >
> > Terry
> > N7TB
>
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