Since Dec. 30th, I have been hearing an unusual pulsing signal on 14.320MHZ. It has 50 regularly spaced, long, dash-like pulses per minute. These pulses have rather rough-sounding audio modulation, in two different tones. The signal alternates the two tones, 37 pulses in one tone, then 37 in the other. It's heard intermittently, usually between 16:00 and 23:30 Universal time. I've heard it on the West coast of the U.S. Another ham reports hearing it on the East coast. Signal is as strong as S. 7 and S. 9, at times. Has anyone else heard this signal, and/or have any ideas on it's source or identity?
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Unusual pulsing signal on 20 meters
- Thread starter Bison1
- Start date
Interesting idea. Thinking outside the box, as they say. I rule nothing out at this point. Interesting that no ham I've described this signal to seems to recognize what technology or modulation mode is being used. I recall reading that tone-modulated pulses are not used, (and are in fact illegal) on any ham frequency below 50.1 MHz
Heard the unusual signal again today, intermittently, from about 20:35 to 21:30 U.T.. Signal as strong as S. 5 , at times. The long pulses could be heard to be divided up into four or five very rapid pulses, so rapid that their separate nature might be missed. Given normal 20 meter propagation, the signal is not heard as early, on any day, as might be expected of a signal to the East of my location. Further, it isn't heard as late as might be expected, either, for a source to the West. It seems confined to about an 8 hour window, centered around local Noon.
Please post an audio recording or video I believe I have ran across this signals your describing.
Sent from Outerspace, on the DarkSide of X.
Morse123; Thanks for your response. Not set up here for making audio or video files, unfortunately. Have listened to a great many YouTube videos of unidentified radio signals, without finding anything like what I'm hearing on 14.320. Have never run across its like before in my own listening, either. If the signal you've heard has the characteristics I described in my first post, there can't be much doubt that it is the same one, given that it's so unusual. Details of your reception report, and any thoughts on the technology behind this signal or its source would be appreciated.
It was a few weeks ago i noticed somthing there, but lately all im getting is ten pounds of static every time i turn the radio on. ill try to see if i can hear it again and record the time and a clip of the sound
I can sympathize on the static. We get it here in California a good deal, too. Mostly from the power mains. A sound clip of the signal could be helpful in finding an explanation for it.. Someone might hear it and recognize what type of signal it is. Would be interesting, too, for those who haven't managed to hear it over the air.
I heard a weird signal or noise on 14.260, 14.292, 14.300, and 14.313 thats as far as I went the signal on my end was a s8 it sounded like "Woody Woodpecker" on crack or tweaking on meth it was on those frequencies at the same time I dont think it was someone QRMing but thats the first time I have heard that noise
14.313 is the hf trash freq on 20m. sometimes they bleed on quiet a few even tho they claim QRP.:blink:
hope you guys can figure out the signal source
Thank you. That would be very helpful. I haven't heard the signal in a couple of days; it often appears again after being absent for 2 or 3 days.
