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Loggings => HF Mystery Signals => Topic started by: Aitrius on October 17, 2023, 1452 UTC

Title: 11414 UNID Mystery 1430 UTC
Post by: Aitrius on October 17, 2023, 1452 UTC

Strange constant signal with rhythmic tone every 1 - seconds. High pitched.

s9+ in Michigan

Spread about 10khz bandwidth.

Picked up on my 7300 with 100ft long wire antenna.

I looked it up and it could be FSK or PSK? However, looks more like 10 tones, not 8, 12 or 20.

At about 14:50 UTC the signal just dropped to s2-3 but is still there.

Also picked it up on KIWISDR in Northern Michigan, Omaha Nebraska, Florida, Mexico and then also in the Carribean. Very loud in California at 15:09 UTC, faint in Hawaii and the Philipines.

Ended at 15:50 UTC

Title: Re: 11414 UNID Mystery tone 1430 UTC
Post by: Nomadiq on October 17, 2023, 1516 UTC

Can confirm - heard in Vermont at S9+20dB.

Looks like this:

(https://media.discordapp.net/attachments/708631906014593069/1163858434140151940/image.png?ex=65411aa2&is=652ea5a2&hm=801d84e56609534079b08f96273463d6cee4c9a1c28175b5933bb83e62795b21&=&width=852&height=1190)

Title: Re: 11414 UNID Mystery tone 1430 UTC
Post by: Aitrius on October 17, 2023, 1521 UTC

Quote from: Nomadiq on October 17, 2023, 1516 UTC

Can confirm - heard in Vermont at S9+20dB.

Looks like this:

(https://media.discordapp.net/attachments/708631906014593069/1163858434140151940/image.png?ex=65411aa2&is=652ea5a2&hm=801d84e56609534079b08f96273463d6cee4c9a1c28175b5933bb83e62795b21&=&width=852&height=1190)

Yes, Can confirm. Thanks for getting a good photo of it!