Re: experience with CW and settings

Posted by Al Gulseth-2 on Sep 26, 2015; 2:23pm
URL: http://elecraft.85.s1.nabble.com/experience-with-CW-and-settings-tp7608260p7608327.html

Two more items to keep in mind from another (semi) rural resident:

1) Power pole lightning arrestors can deteriorate or be damaged by a strike
and cause leakage/arcing. (Note that the noise from this can be intermittent
rather than constant.) That happened on a pole near me. I walked around the
neighborhood doing some DFing with a portable AM radio, identified a suspect
pole, and noted its ID number. When the power company crew arrived a lineman
climbed the suspect pole and immediately spotted a damaged part. The crew was
amazed that I was able to track down the fault that accurately. They also
thanked me for notifying them as it not only prevented a likely future outage
but also eliminated a system loss point. (From what they said leakage of this
type costs power companies more than you'd realize.)

2) Improperly designed (or "cheated" designs which claim to but don't meet
Part 15 spec) consumer electronics can throw RFI/EMI hash back out onto the
power feed and thus radiate it for quite a distance. I've been through the
drill of chasing that problem also.

73 es GL on finding your noise source, Al

On Fri September 25 2015 8:48:00 pm mfsj wrote:

> Ken I had the same problem several yrs. ago on my farm. It was a
> transformer I called the CO OP ant shaped it out for me, no more noise now
> one S Unit To 2 at the most. Fred N0AZZ
>
> Sent via the Samsung Galaxy S6 edge+, an AT&T 4G LTE smartphone--------
> Original message --------From: Ken <[hidden email]> Date: 09/25/2015
> 8:26 PM  (GMT-06:00) To: [hidden email] Subject: Re: [Elecraft]
> experience with CW and settings Phil,
>
> don't assume rural areas are quiet!   I sometimes have S9+ power line
> noise and we are rural (internet and TV via satellite) , nearest
> neighbor is a half mile away and down over the hill.  I've traced the
> noise to the power line feeding the farm (main breakers off, K3 running
> on battery.)
>
> Ken WA8JXM
>
> On 9/25/15 12:41 PM, Phil Anderson wrote:
> > I live in a suburban area so my noise level is high for 40 and 30
> > meters compared to those lucky folks living in rural areas.
>
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