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Interesting stuff. Thanks for uploading!
7:35 It sounds like a FAX machine
Awesome video!
beside the polytones, some are bloops with discernible pattern. how do they transmit information?also some are bleeps that are too fast for humans to recognize, let alone decode
Software. That’s the answer.
i think XPB its and data transmit. (data over sound)
What frequency are the poly tones on??
If you are DXing on SW you may find it
Почти все российские))
Interesting stuff. Thanks for uploading!
7:35 It sounds like a FAX machine
Awesome video!
beside the polytones, some are bloops with discernible pattern. how do they transmit information?
also some are bleeps that are too fast for humans to recognize, let alone decode
Software. That’s the answer.
i think XPB its and data transmit. (data over sound)
What frequency are the poly tones on??
If you are DXing on SW you may find it
Почти все российские))