Hi Mike, They're not birdies, but real signals. See what happens when you disconnect your antenna. If they were birdies, therefore originating from within the radio, you'll still hear them.
I have two routers in my house, and both wreak havoc for me! I still haven't found a good way to minimize their impact. 73, James K2QI On Tue, Nov 16, 2010 at 6:02 PM, Mike K2MK <[email protected]> wrote: > > There's a very interesting item in December's QST "The Doctor is In" > feature > (page 48 right column). Receiver birdies turned out to be caused by a noisy > router. I have learned to live with 10 meter birdies on my K3. But lately > I've been active on 12 meters and there is an S5 birdie at about 24900KHz. > So after reading the article I started unplugging cables on my wireless > router (which is in another room from my K3). Whoa, what's this? Birdies > come and go as I unplug the router power line or unplug the CAT 5 cable > going to the shack. Ditto in the shack. If I unplug the CAT 5 from the wall > or from the PC the birdie on 12 meters disappeared. Moving on to 10 meters > I > discovered that all of the prominent birdies also disappeared. I haven't > done a thorough investigation but I suspect they might all be gone. > > Of course that was only step one. I still need an internet connection on my > shack PC so I'm currently experimenting. Snap-on ferrite cores had no > effect. Moving the shack CAT 5 cable away from other radio related cables > is > having a positive effect. Next I'm going to try a shielded CAT 5 cable from > the wall to the shack PC. But of course the cable wiring in the wall to the > router is not shielded so I don't have high hopes of solving it in this > way. > But at least I'm on the right track and I'm sure I'll find something that > works eventually. > > 73, > Mike K2MK > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/K3-Are-the-birdies-really-birdies-tp5745866p5745866.html > Sent from the Elecraft mailing list archive at Nabble.com. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- 73 de James K2QI President UNARC/4U1UN ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html

