David, If you are using any UPS equipment or any other switched mode power supplies, try to switch them off.
Ahti OH2RZ On 29/11/2008, David Beumer W0DHB <[EMAIL PROTECTED]> wrote: > Folks > > > > I'm trying to track down the source of some nasty QRM that appears as an > 4khz wide carrier that meanders through 40m with 2nd ,3rd and 4th harmonics > on 20, 15 and 10. I've got a screen shot of waterfalls of 40m (Top) and > 20m(bottom) showing the signal at URL: www.wa3fdb.net/40mQRM.htm > > > > I'd appreciate any clues as to what it is .. I don't believe it is anything > internal to the 5000A . > > > > It is strong enough on 20 m that it prevents digital mode reception. > > > > I'm located about 40 miles NNW of Denver, grid DN70kc . > > > > I'm also checking with folks in a 10 mile radius or so to see if they can > hear and/or see it. > > > > Thanks > > Dave - W0DHB > > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kc.flex-radio.com/ Homepage: > http://www.flex-radio.com/ > _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
