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Author Topic: F03 and P03 Polish digital 23 JAN 2025  (Read 305 times)

Online kris

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F03 and P03 Polish digital 23 JAN 2025
« on: January 23, 2025, 2348 UTC »
   And I managed to identify "mysterious" (for me) short digital transmissions broadcast shortly before or after the analog transmission of the E11/S11a group.
According to Pryiom, this is their digital variant marked with the symbols F03x and P03x. As many as 12 variants of FSK or PSK modulation have been described, where x denotes the letter of the modulation variable.
My curiosity has been satisfied, but I will not report these transmissions.
A sample recording of P03i 1800 UTC 6480 USB S9 U.Twente below:
            https://voca.ro/1e93aAhwbMw6
« Last Edit: January 24, 2025, 0001 UTC by kris »
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Offline tiNG

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Re: F03 and P03 Polish digital 23 JAN 2025
« Reply #1 on: January 24, 2025, 0707 UTC »
Hi Kris.

The pity is that there is still no known software to decode this modulation. Also ENIGMAS F03 can't yet be put on paper in a way that it makes "sense" (groups of 5 numbers or letters). There is only known that E11 and S11a frequencies are used and a few TDoA results that are really tangible.

Kind regards
73 & 55
Thomas
Rüm hart – klaar kiming


 

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