I have been chasing some RFI here that appears every 56.746 KHz (Average from 35 samples) over the entire spectrum from 80M up thru 10M. The source is still un-identified after weeks of searching. It is there 24 hours a day, 7 days a week and ALWAYS is on the frequency of that rare one!
This morning I found the signal on 5.0000MHz WWV, just to the high side of WWV. The wierd thing is that every time WWV clicked off a second, there was a pulse that ran from WWV down frequency to 4.962812 where it literally dropped out like it disappeared down a drain. The pulse was about 1KHz wide, almost flat across the top, similar to a square wave. The pulse was -90dBm, 30dB above the noise level. WWV is above -60dBm here. My first thought was, "What the H--- was that???" Back to analyzing the interference. It is becoming an obsession.... 73 Jim, W4ATK _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
