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Author Topic: PSK? narrowband signal at 5358.62 kHz  (Read 1124 times)

Offline alleycat

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PSK? narrowband signal at 5358.62 kHz
« on: December 26, 2022, 0323 UTC »
Unidentified approximately 30 Hz bandwidth signal (markers are 50 Hz apart); unchanging nature suggests idle marker. Falls in 60 meter amateur band, but doubt it's amateur-related. Can't find a close match at sigidwiki. Any ideas? Thanks!
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allen lutins - KC2KLC
Binghamton, NY
Rigs: Yaesu FT-897D, Elecraft KX3, RTL-SDR Blog V3 & SDRPlay RSP1A
Antennas: G5RV Jr dipole, Alpha Antenna EZMilitary portable vertical & Grove Omni-II discone
eQSLs welcome: kc2klc@lutins.net

Offline Josh

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Re: PSK? narrowband signal at 5358.62 kHz
« Reply #1 on: December 27, 2022, 1737 UTC »
Batputer says it's 2-ary psk, 33.33Hz bit rate.
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Offline alleycat

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Re: PSK? narrowband signal at 5358.62 kHz
« Reply #2 on: December 30, 2022, 0352 UTC »
Wish I had a batputer - would probably need a batcave to put it in, though. Still, I have to question the result - my preliminary research (i.e., googling) suggests this is a mode used for satellite communications - wouldn't expect to see it in the amateur 60 meter band!
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allen lutins - KC2KLC
Binghamton, NY
Rigs: Yaesu FT-897D, Elecraft KX3, RTL-SDR Blog V3 & SDRPlay RSP1A
Antennas: G5RV Jr dipole, Alpha Antenna EZMilitary portable vertical & Grove Omni-II discone
eQSLs welcome: kc2klc@lutins.net

Offline ~SIGINT~

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Re: PSK? narrowband signal at 5358.62 kHz
« Reply #3 on: December 30, 2022, 0536 UTC »
Perhaps this was HAARP related. Have a look at the waterfall display in the following post:
9600 USB HAARP December 27 20:45

The lissajous figure looks very similar. Perhaps similar type of modulation.
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