Weird Ticking QRM
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Shortly after loading the latest version (4.51) I was occasionally getting a continuous tick-tick-tick signal on the higher bands that was very annoying. It also showed on the P3 as a very low amplitude, approximately 2 per second swept line (on the waterfall). It disappeared with the antenna disconnected. Thinking it was my new laptop, I shut that off to no avail. This had been going on for several days now, and I was almost ready to tear what's left of my hair out. The power company had installed one of those new "smart" radio controlled meters on a neighbor's house (I refuse to let them change mine out) and I suspected that too, but this morning I FINALLY found it! Turns out that 4.51 firmware was not the problem at all!
I have a Black & Decker 18 volt battery drill that I use almost every day for some sort of project and I have been working on installing a new Yaesu 7900 2/440 rig in the wife's car. I had the spare battery sitting on the rapid charger and it appears the charger is one of those "pulse" types. Just a few minutes ago, it all of a sudden dawned on me to remove the battery from the charge slot and instantly the ticking noise disappeared! Just goes to show you that sometimes it's the simplest things that create the most complex problems - ;) Boy, I won't ever forget THAT noise source! Jim - W0EB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Jim,
I discovered the same thing from my Makita battery drill charger in the garage. As you, I was very happy to discover this annoying noise maker. Bob K6UJ On May 15, 2012, at 7:07 AM, Jim Sheldon wrote: > Shortly after loading the latest version (4.51) I was occasionally getting a continuous tick-tick-tick signal on the higher bands that was very annoying. It also showed on the P3 as a very low amplitude, approximately 2 per second swept line (on the waterfall). It disappeared with the antenna disconnected. Thinking it was my new laptop, I shut that off to no avail. This had been going on for several days now, and I was almost ready to tear what's left of my hair out. The power company had installed one of those new "smart" radio controlled meters on a neighbor's house (I refuse to let them change mine out) and I suspected that too, but this morning I FINALLY found it! Turns out that 4.51 firmware was not the problem at all! > > I have a Black & Decker 18 volt battery drill that I use almost every day for some sort of project and I have been working on installing a new Yaesu 7900 2/440 rig in the wife's car. I had the spare battery sitting on the rapid charger and it appears the charger is one of those "pulse" types. Just a few minutes ago, it all of a sudden dawned on me to remove the battery from the charge slot and instantly the ticking noise disappeared! > > Just goes to show you that sometimes it's the simplest things that create the most complex problems - ;) Boy, I won't ever forget THAT noise source! > > Jim - W0EB > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Question: what item in my household emits so much broadband QRM that my K3
is completely useless on 80 meters? Answer: the Toyota Prius in my garage. Turned "off" and not moving! Seriously! :-) 73, Steve, AI7AZ On Tue, May 15, 2012 at 7:27 AM, Bob K6UJ <[hidden email]> wrote: > Jim, > > I discovered the same thing from my Makita battery drill charger in the > garage. As you, I was very happy to discover this > annoying noise maker. > > Bob > K6UJ > > > > On May 15, 2012, at 7:07 AM, Jim Sheldon wrote: > > > Shortly after loading the latest version (4.51) I was occasionally > getting a continuous tick-tick-tick signal on the higher bands that was > very annoying. It also showed on the P3 as a very low amplitude, > approximately 2 per second swept line (on the waterfall). It disappeared > with the antenna disconnected. Thinking it was my new laptop, I shut that > off to no avail. This had been going on for several days now, and I was > almost ready to tear what's left of my hair out. The power company had > installed one of those new "smart" radio controlled meters on a neighbor's > house (I refuse to let them change mine out) and I suspected that too, but > this morning I FINALLY found it! Turns out that 4.51 firmware was not the > problem at all! > > > > I have a Black & Decker 18 volt battery drill that I use almost every > day for some sort of project and I have been working on installing a new > Yaesu 7900 2/440 rig in the wife's car. I had the spare battery sitting on > the rapid charger and it appears the charger is one of those "pulse" types. > Just a few minutes ago, it all of a sudden dawned on me to remove the > battery from the charge slot and instantly the ticking noise disappeared! > > > > Just goes to show you that sometimes it's the simplest things that > create the most complex problems - ;) Boy, I won't ever forget THAT noise > source! > > > > Jim - W0EB > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:[hidden email] > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Jim Sheldon
On 5/15/2012 7:07 AM, Jim Sheldon wrote:
> Shortly after loading the latest version (4.51) I was occasionally > getting a continuous tick-tick-tick signal on the higher bands that > was very annoying. It also showed on the P3 as a very low amplitude, > approximately 2 per second swept line (on the waterfall). "Weird ticking noises" for me have always been electric fences. I track them down with my KX1. Most of the time, they start up in the late spring when weeds grow up to the wire. By now, the neighbors don't mind if I follow their fence lines and just fix them. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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