Hi Dave, N6CO
To find out from where the noise come out you need a MFJ-852 Meter A/C Line Noise Meter visible in the following internet address:
http://www.mfjenterprises.com/Product.php?productid=MFJ-852
It is currently used by the Electricity Companies in England.
73" de
i8CVS Domenico
----- Original Message ----- From: "Dave Larsen PhD" doc@volcano.net To: amsat-bb@amsat.org Sent: Saturday, August 03, 2013 1:28 AM Subject: [amsat-bb] Re: Help with 75 mtr Qrn problem
I have called PG&E and the guy came out with a 430 Rx with a beam saying it's not there problem - humm - The Lev stays at a S-7 and then when sun comes up it goes to a S-9 20 over
both Ants were fine for 2 years .. then the QRN .. it did go away for
about
1 week now back for 1 month
Tnx for all responce .
Dave
----- Original Message ----- From: "K4FEG" K4FEG@K4FEG.COM To: "Dave Larsen PhD" doc@volcano.net Sent: Friday, August 02, 2013 3:50 PM Subject: Re: [amsat-bb] Help with 75 mtr Qrn problem
On 8/2/2013 05:23 PM, Dave Larsen PhD wrote:
I have 2 dipoles up at 60+ ft - one set running East-West other North South .. From 2.6 to 5 Megs I have a S-7 Qrn lev at 4 Am .. buy noon I have a 10-20 over QRN Lev .. I live on 10 acres and have turned off main power to house and still have QRN .. so not coming from anything in house .. This one has me stumped .. 6 moths ago my Qrn was a S-2 .. waiting for a G6
radio
to try and track this down but does anybody else have any idea's ?
Tnx
Dave N6CO _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the
author.
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there is a possibility that you have a nearby electrical transformer
that
has a corroded connection on it, these connections can be a major source of noise and they will come and go with changes in humidity or precipitation. will it suddenly stop at times are is it a fairly
constant
level?
your local utility company can find and repair these connections but
they
need a better idea of the direction it is from your QTH.
Those are my thoughts on your problem Good Luck Frank; K4FEG
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