I know they don't recommend it, but I was out with a Power guy one day a
few years back.
The thing he asked me was if I had a sledge hammer as he didn't have his
truck with him. :) Even when I called in the pole, the dispatcher asked
me how I found it. I told him with my AM Yaesu radio at 130mh
> Smacking poles with a big hammer (with or without a transformer
> mounted on the pole) will also help identify loose connections which
> may cause interference.
It's also a good way to bring loose power line hardware down on your
head!
The power company does NOT recommend slugging their pole
adio.biz
Subject: Re: [Flexradio] Sweeping noise/signal across band
I also see things running back and forth across the panadapter, relatively
localized humps a few dB above background. I don't hear them when they
transit my operating freq. I typically operate in Panafall Mode and ever
e
Cc: K0DAN ; flexradio@flex-radio.biz
Subject: Re: [Flexradio] Sweeping noise/signal across band
Here is how I locate it. I have an AOR 8000 portable receiver. I dial in the
offending freq and go hunting around the house. I've located a noisy
transformer on the pole. Smack the pole with
shouldn't because I
> had to shut down the hot wire to talk on the radio.
>
> 73 Patrick AF5CK
>
> -Original Message- From: K0DAN
> Sent: Saturday, December 01, 2012 7:56 PM
> To: Bob Kay ; flexradio@flex-radio.biz
> Subject: Re: [Flexradio] Sweeping noise/signal
cember 01, 2012 7:56 PM
To: Bob Kay ; flexradio@flex-radio.biz
Subject: Re: [Flexradio] Sweeping noise/signal across band
Good point! I got this advice from someone earlier...but it wasnb t the UPS.
Nor was it anything else in my QTH domain. It comes and goees but does not
bother me too much. Pa
Sent: December 01, 2012 07:48 PM
To: K0DAN
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Sweeping noise/signal across band
Check your UPS supply. You've described my situation exactly. I contacted UPC
and they had no interest in solving it. Unplugged the UPS and the problem is
gone.
our neighbors and/or in
> your environment, and might not be feasible to identify or resolve, esp in
> FL condo.
>
> GL es 73
>
> Dan
> K0DAN
>
> -Original Message- From: Steve Fowler
> Sent: December 01, 2012 04:15 PM
> To: flexradio@flex-radio.biz
> Subjec
Re: [Flexradio] Sweeping noise/signal across band
Welcome to urban noise pollution! At least that's my best guess. I have
switch mode power supplies in my house along with the PWM motor controller
on my furnace that make noise like that. The one I had that acted exactly
like yours was a SMPS
Konrad:
Most likely a wall wart that uses a switching supply inside it.
Unplug all the wall warts in your shack, one at a time.
Mine was the one running my WiFi base/router.
--- Graham
==
On Sat, Dec 1, 2012 at 4:15 PM, Steve Fowler wrote:
> Welcome to urban noise pollution! At least that's
Welcome to urban noise pollution! At least that's my best guess. I have
switch mode power supplies in my house along with the PWM motor controller
on my furnace that make noise like that. The one I had that acted exactly
like yours was a SMPS powering my security cameras. The frequency changes
Anyone having a similar problem. I see (on the panafall) and hear in the
headphones a sweeping signal or noise that regularly and slowly goes across the
band in time. Right to left and then back. Adds 20 db of noise to a -119 db
threshold on 20M CW. I am using my FLEX 3000 portable here
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