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  • Russian Squirts

    From warmfuzzy@700:100/37 to All on Fri Sep 2 23:13:21 2022
    I've heard that the Russians have used squirt radio bursts when communicating with their spies. Basically an agent would write out his message in Notepad and use a Morse code text to audio converter (which are available for free on the net in various places). So after the agent is done writing their message to go to their handlers its converted into Morse and then is linearly compressed by compressing the time of the audio, until it is so compressed that it takes only about a few seconds, its cued up in the agents car and when ppl drive past the Russian diplomatic district the squirt it sent and is nearly impossible to detect, it would look like some sort of glitch or an odd change in background radio noise. So this whole thing can be done using open source technology and software.

    I don't recall where i heard this from, but its open source intelligence.

    Cheers!
    -wf

    --- Mystic BBS v1.12 A47 2021/12/13 (Linux/64)
    * Origin: thE qUAntUm wOrmhOlE, rAmsgAtE, uK. bbs.erb.pw (700:100/37)
  • From debian@700:100/69 to warmfuzzy on Mon Sep 5 23:17:35 2022
    Just borrowing from my knowledge of Packet radio and the different baud rates, 9600 baud won't work on VHF or lower, but does work (atleast somewhat) on UHF - the higher frequencies perform better for higher baud rates. I have to wonder what frequency range would be required in order to transmit a message that is compressed into CW that requires less than 1 second to transmit?

    73, de KG7UJH
    Debian

    How ya gonna do it? PS/2 it!

    --- Mystic BBS v1.12 A48 2022/02/11 (Linux/64)
    * Origin: SPOT BBS / k9zw (700:100/69)
  • From k9zw@700:100/69 to debian on Tue Sep 6 06:34:25 2022
    On 05 Sep 2022, debian said the following...

    Just borrowing from my knowledge of Packet radio and the different baud rates, 9600 baud won't work on VHF or lower, but does work (atleast somewhat) on UHF - the higher frequencies perform better for higher baud rates. I have to wonder what frequency range would be required in order
    to transmit a message that is compressed into CW that requires less than
    1 second to transmit?

    Thinking contemporary burst transmissions would be more than time compressed CW.

    High-Speed Encoders were the thing though is WWII and early cold war.

    Both limited technology and physically preventing the opposition in gaining technological/cryptographic advantage if the device was compromised made high-speed encoders the thing back then.

    Thinking usage tapered off by the 1970s except for countries without access to improved technologies.

    You can find lots of interesting background on these topics at the Crypto Museum website: https://cryptomuseum.com/

    Another resource is: http://www.militaryradio.com/spyradio/

    Be aware that these websites, especially anything from the
    Volume 4 of the "Wireless for the Warrior" book and suplements are a rabbit hole that will quickly become a time sink.

    --- Steve K9ZW via SPOT BBS

    --- Mystic BBS v1.12 A48 2022/02/11 (Linux/64)
    * Origin: SPOT BBS / k9zw (700:100/69)