Talk:Unknown 13p57 robot-like beeping signal

Another version of this signal?

Seems there's another variant of this signal. Video examples:

• 15310KHZ UNKOWN SIGNAL　奇妙な信号　カエル のような
• 【怪电台追踪2】怪电台换频率了！甚至还和短波电台掐架？
• Unknown shortwave transmission (fast version) on 9595kHz. 20 Jul 2024, 1703Z

@Bczhc Thank you for the new frequency information and videos! Link-22 is mentioned in the title of one of the videos. So far it has not been confirmed if this is Link-22. It would be rather strange if Link-22 were used on broadcast frequencies. It might make sense if Link-22 were tested using broadcast transmitters, but that would still be strange. The variant sounds faster but otherwise it's similar. Perhaps different modulation or transmission parameters were used. Emcbro (talk) 09:13, 26 July 2024 (NZST)

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Link 22 is only supposed to be used in HFHigh Frequency (3-30 MHz) and UHFUltra High Frequency (300-3000 MHz) bands (maybe 225-380) but I dont know what exactly is going on, but if they are doing testing to roll out this new signal, thats fantastic. I thought this was done in accordance with some of the conflicts going on recently... heres what the primary medium wiki says about this "up and coming signal", if this were to be true... https://en.wikipedia.org/wiki/Link_22 Yalek W (talk)