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Re: Topband: Noise problem question

To: topband@contesting.com
Subject: Re: Topband: Noise problem question
From: Steven Raas <sjraas@gmail.com>
Date: Mon, 19 Dec 2011 14:12:49 -0500
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Altho its not a broad signal .. quite the oppisite, I've recently learned
of the WSPR crowd is running prop beacons @ 1836.6 Just below where the
majority of the JT65 Activity is, I have rcvd these signals here @ my
location, along with the Call & Grid they send the TX pwr in dBm Most are
in the 40 - 30 dBm power level.

Do you have or know someone that has one of those MFJ noise cancelation
boxes that uses a 'sense' antenna and you adjust the phase?

I live in the depths of a big city.. and noise is status quo here.. I
havent tried one of these devices yet.. if I find a local ham that has
one.. ide Like to borrow it and see if it would be a viable addition to my
operations here.

Good Luck,

Steve Raas
N2JDQ

On Mon, Dec 19, 2011 at 1:55 PM, Joe Giacobello, K2XX <k2xx@swva.net> wrote:

>  Regarding noise on 160M, I have been consistently observing all season
> long a broad signal, reminiscent of a plasma TV, centered around 1836
> KHz.  Since it seems to be on 24/7 and my closest neighbor is a half
> mile away, I don't think it's a TV.  Has anyone else seen this signal or
> is it just local to me?
>
> 73, Joe
> K2XX
>
> On 12/19/2011 8:24 AM, Mike(W5UC) wrote:
> > On 12/18/2011 1:36 PM, W5UN wrote:
> >> I'm looking for input from someone who has experienced a similar
> >> situation as I describe below.
> >>
> >> About 3 months ago I began experiencing severe noise on top
> >> band.  It's a  constant white noise which begins to drop off above
> >> 2.5 mHz, and is hardly noticeable on 80, and not there at all on 40
> >> meters and above. Every once and a while the noise will drop off
> >> completely, only to return a few minutes later. It is there about 98%
> >> of the time.The severity seems to vary a little, but is typically
> >> S9+15 db when present, and S3 during the rare times it drops out..
> >> This noise is coming from the eastern direction, about a mile from
> >> here. There are power lines.there, and these appear to be the source,
> >> however there are similar power lines of the same voltage here in
> >> other directions, including one to the southwest about 800 feet away,
> >> but that one has no noise. Has anyone experienced such noise as this?
> >> I need to see if I can track this down and  get it fixed. Any help
> >> will be appreciated.
> >>
> >> Dave, W5UN
> > Good Morning Dave:
> >
> > I'm not hearing that here in Lufkin, so it possibly local for you.
> >
> > 73,
> > Mike, W5UC
> >
> >
> >
> >
> >
> >
> >> _______________________________________________
> >> UR RST IS ... ... ..9 QSB QSB - hw? BK
> >>
> > _______________________________________________
> > UR RST IS ... ... ..9 QSB QSB - hw? BK
> >
> >
> > -----
> > No virus found in this message.
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> > Version: 2012.0.1890 / Virus Database: 2108/4690 - Release Date: 12/19/11
> >
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
>
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK

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