Which part is a hoax exactly? I've observed and recorded some of this myself and I even messaged the pirate on Telegram after he drew his handle through spectrogram painting. It was hearable on multiple receivers in various places in Europe.
He didn’t make any transmission. If you’re a radio person you’ll see instantly how and why this is fake. Since you’re not, and neither is your purported pirate, I won’t tell you the critical error which was made. You should be careful that you don’t get rused, or worse - spread misinformation intentionally.
Roughly 30min ago there was music being played at 4625kHz in various receivers around Europe. Am I wrong in my understanding that if you can hear a radio signal, there is something being transmitted?
The only possible scenarios I can imagine where this is fake is either A) there is no transmission and the signal is somehow being directly injected into these WebSDRs who have all conspired; B) there are transmissions but they're very low-power and local near each WebSDR; or C) the transmission is actually coming from Russia's buzzer transmitter.
I find A to be extremely unlikely as it would require some kind of grand conspiracy. B might be possible with enough motivation but I fail to see one. C seems unlikely as I found the music's signal strength to vary differently based on location than the buzzer.
I tried to pick up the music with my own SDR at home and a shoddy antenna setup. I was able to pick up the buzzer and not the music, while some WebSDRs had loud music, so I don't consider C to be true. I do live in what could be a skip zone for the pirate's transmission.
If there is a critical error in my assessment, it would be helpful to point it out if you truly wish to curb this supposed misinformation.
B sounds the most logical but even that is a stretch. Whoever hoaxed this forgot one essential thing about radio which I won’t say, because I suspect we haven’t seen the end of these hoaxes. All in due time though.