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Monthly Archives: May 2021

18 May 2021

Frequency Handbook for Radio Monitoring HF Edition 2021 by Roland

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Signals, signals and signals

Roland @df3lz ·

14 Nov

The next picture from METEOR M2-4.

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Roland @df3lz ·

14 Nov

Ok, METEOR M2-3 says a weather to stay inside...

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Antonio (Tony) I56578 SWL 🇮🇹 @i56578_swl ·

11 Nov

Another post will follow, probably they are DHFCS from St.Eval (UK) running the GA-205 multiplexer in FSK mode. Indeed, S-4285 1200/L have been listened on the same fqys with similar bitstream (1536 bit)

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Antonio (Tony) I56578 SWL 🇮🇹 @i56578_swl ·

11 Nov

Unid FSK 800Bd/850Hz transmissions which can be heard on 8014, 8180, 10008, 12414 kHz (evening UTC). The signal has a 1280 ms ACF which corresponds to a complex and very interesting period of 1024 bits. The 850 Hz shift most likely belongs to NATO networks.

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