[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Off topic - power line



I moved to a neighborhood plagued with power line noise 10 years ago.  The
main trouble was transformers that integrated protection inside the
transformer housing (rather than external protection). My problems were as
close as 100 yards, and as far away as 3/4 mile. It was very bad at both 2
meters and 440 Mhz. HF was completely unusable.  After I was able to
demonstrate that I could pinpoint exactly which pole was the problem,
sometimes even the item on the pole,  Alabama Power was very, very
cooperative in cleaning it up.  About a year later, they had replaced the
hardware including transformers on 4 different poles, and partially replaced
hardware on several others. Now my neighborhood is quiet...  Good luck..

Dennis - N4NR
__________________________________________________
Qwest Long Distance -- 5¢ a minute with no monthly fee!
Visit http://qwesteferral.com/r.jsp?a=6hAso6CquXdfVU541Lz2HA$$&x


----- Original Message -----
From: Bob Bruninga <bruninga@nadn.navy.mil>
To: Kevin Muenzler WB5RUE <wb5rue@arrl.net>
Cc: <amsat-bb@AMSAT.Org>
Sent: Friday, August 25, 2000 12:21 PM
Subject: RE: [amsat-bb] Off topic - power line


> On Thu, 24 Aug 2000, Kevin Muenzler WB5RUE wrote:
>
> > I'm about 1km from a 138kv main supply line...
> > I don't hear any hash or buzzing at all.  Unless the
> > power is particularly dirty you shouldn't have any troubles.
>
> Good data point.  But just to clarify the conclusion, however, in the
> posted case the power line will be only 4 meters away.  The difference
> between his distance and the one above equates to almost 50 dB...
>
> Just a thought...
>
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org

----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home