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 <wa8...@gmail.com> Date: 09/25/2015 > 8:26 PM (GMT-06:00) To: elecraft@mailman.qth.net 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. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to m...@totalhighspeed.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wb5...@centurytel.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
