updated
Unid signal noted on 7005 KHz/USB, "patterns" are sent each 1328 ms and have a duration of 672 ms (2000 ms cycle). Transmissions happen during the afternoon, not all the days, and last 2 hours. As per Kiwis and any observations, this fresh waveform could be from Russia.
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| Fig. 1 |
Could be a kind of "image" formed by the array of multiple frequencies, just like the HAM calls sent in SSTV broadcasts, but it's only a my guess and further recordings could clarify origin and users. Comments are welcome.
https://disk.yandex.com/d/Kvog7RX83oppFA
19th August update
I want to thank my dear friend cryptomaster who suggested that this signal could be an "evolution" or a modified version of the Turkish waveform shown here:
http://i56578-swl.blogspot.com/2023/05/a-strange-as-unid-signal-appeared-last.html
If he's right, as I think, this would be a good step forward.
