[Milsurplus] Noise question, not too far off topic.

[Mack Rogers]

That doesn't sound like a very sincere response from your local AC power distributor. Then there's the problem of whether most of the offending noise is getting into your receivers directly through the air or via the AC line that powers you receivers. Surplus AC line filters show up at hamfests all the time and are a good investment. Most of these have a good choke & capacitor arrangement that will kill quite a bit of AC line noise. If you've got a well stocked junk box or two the pieces needed to build one are probably already in your possession.

good luck


N4VGB
Mack Rogers



     

--- On Tue, 11/16/10, Jack Antonio <scr287 at att.net> wrote:

> From: Jack Antonio <scr287 at att.net>
> Subject: [Milsurplus] Noise question, not too far off topic.
> To: Milsurplus at mailman.qth.net
> Date: Tuesday, November 16, 2010, 11:31 AM
> 
> I've been dealing with line noise here at my new QTH,
> which
> has been keeping me off AM.  Since a  lot of my
> receivers do
> not have a noise limiter, it is really a bother. Noise
> limiters do
> make the noise slightly less annoying, and a blanker
> punches a
> hole in the carrier, which is just as annoying as the noise
> itself.
> 
> I DF'ed the area it is coming from, reported it, and the
> power company
> said they found bad lightning arresters and cracked
> insulators.  They
> will repair it (hopefully pretty soon), but told me it is
> an ongoing problem
> in this area.
> 
> So, the question is...
> 
> Does anyone have any experience with something like an MFJ
> DSP
> unit as an outboard unit following a BC-348 or similar
> receiver, in cleaning
> up line noise.  The noise waveform itself  is a
> sharp spike.
> 
> 
> Thanks
> 
> Jack Antonio WA7DIA/4
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