Flexers, I happened to tune 5MHz this evening and noticed a chirp that extends down in frequency some 32KC below the carrier. It shows up as a fast moving hump that begins every second in sync with the WWV pulse starting at about 4995 KC and sweeps down to 4964 or so before disappearing. The transit of the chirp over these 32KC takes about a half a second.
I checked the other WWV frequencies - tonight is one of those unusual nights when I can hear all 5 of them. It only appears on 5MHz WWV and only on the lower sideband. (Here's the only remotely FlexRadio content: I probably wouldn't have noticed it while listening with narrow filters on a radio with knobs, but it's pretty obvious seeing it on the Panadapter.) I thought maybe it was a local artifact, but when I replace the antenna lead with a wire and sweep around the shack I don't hear it (or WWV) so it appears to be coming from outside at any rate. I did some preliminary googling, but couldn't find anything that sounded like this. Has anyone else seen this / knows what it is? Mark _______________________________________________ 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/
