[RFI] Fwd: Power Line Noise

[thoyer1 at verizon.net]

Thanks for the suggestions.

I have toured the immediate neighborhood with the car radio at 1710. I don’t hear anything out of the ordinary as I know where most of the “noisy” spots have been for years so it has to be further out.

Peak noise is due north on 20m it gets weaker the higher I go to the point of barely hearing it on 2M – only have FM/SSB 2M rig, no AM.

Tom
W3TA

-----Original Message-----
From: RFI <rfi-bounces+thoyer1=verizon.net at contesting.com> On Behalf Of Alan Higbie
Sent: Monday, December 30, 2024 4:35 PM
To: Rfi List <rfi at contesting.com>
Subject: Re: [RFI] Fwd: Power Line Noise

Perhaps it fades off higher in the band (in the phone portion) because your antenna is more responsive down in the CW segment?

Do you know what direction it's coming from? Try peaking it with your beam.
It may be a sharper peak on higher band - like 10 meters.  I'd also try using your 6 meter and 2 meter beams to do the same in that direction for possibly even sharper peak. (set to receive on AM)

Then take a handheld VHF /  UHF radio (on AM) and walk out in that direction until you find the pole where it is strongest.  That may provide some further clues as to exactly which pole is the source.  After all . . .
there is some specific source out there causing the problem.

Knowing which pole is the source, will help your power company crew fix it faster.

Please keep us posted.  That way, we all benefit.

73,

~ Alan K0AV

On Mon, Dec 30, 2024 at 9:09 AM Dave (NK7Z) <dave at nk7z.net> wrote:

> Hi Tom,
>
> While you wait for the local power company you might consider 
> reviewing
> this:
>
> https://www.nk7z.net/i-have-rfi-now-what-locating-it/
>
> then running a RFI site survey of your area before the power company 
> get out there...  You can do a before, and after, with this process:
>
> https://www.nk7z.net/sdr-rfi-survey-p1/
>
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist, RFI
> ARRL Asst. Director, NW Division, Technical Resources
>
>
> On 12/30/24 05:39, thoyer1--- via RFI wrote:
> > This past fall I've been plagued with noise wiping out the lower end 
> > of 20m (I'm a CW op so this is a big problem). I fades off above 
> > 14.200, but I can still hear it...
>
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>
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