you would not believe the number of these signals a guy can hear in the suburbs... especially on the low bands...my only relief has been to at least limit their strength by azimuth heading with an Rx only 4 square, a la K7TJR / HiZ antennas..
this AFTER 'cleaning house'........ 80m cw was almost an 'r.f. wasteland'...until i got some rx directivity working.. 73, good luck, W5XZ, Dan, Longview Texas. !/2 acre lot in "Hunters Creek".. --- On Wed, 9/8/10, Mike WA8BXN <hubb...@hotmail.com> wrote: From: Mike WA8BXN <hubb...@hotmail.com> Subject: [Flexradio] Drifting noise hills To: flexradio@flex-radio.biz Date: Wednesday, September 8, 2010, 2:40 PM I have noticed at times (particularly during fox hunts) what I can best describe as a noise hill that usually drifts around in frequency. For a width of several KHzon the panadapter I see what is shaped like a "normal curve" that trails off for many more KHz. In panfall mode I can see a brightening where the curve in the panadapter display. Sometimes, when the peak of the curve is in the passband of the receiver I can hear a shift in the noise frequency at around a second or two intervals as the peak drifts around. I have observed this with both a 1000 and 1500 flex radios. Disconnecting the antenna gives a flat display. Connecting a wire to the antenna several feet long just in the shack does not show the noise hill, so it doesn't look like its something in the shack. The effect happens with a number of antennas and is not consistent at all. I live in a rural area with other houses hundreds of yards away. Has anyone else observed this sort of thing or have any idea what it might be? Thanks in advance! 73 - Mike WA8BXN _______________________________________________ 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.flexradio.com/ Homepage: http://www.flexradio.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.flexradio.com/ Homepage: http://www.flexradio.com/