Category:CIS-12: Difference between revisions
No edit summary |
No edit summary |
||
| Line 15: | Line 15: | ||
[https://www.youtube.com/watch?v=0R7ZcDfnVIY Navy CIS-12 file data testing] ([https://drive.google.com/file/d/1tsH5qnnYLbzj-sUvRDnq31sTIQsm7UQ2/view?usp=sharing audio version here]) - 23.09.26 1235z | [https://www.youtube.com/watch?v=0R7ZcDfnVIY Navy CIS-12 file data testing] ([https://drive.google.com/file/d/1tsH5qnnYLbzj-sUvRDnq31sTIQsm7UQ2/view?usp=sharing audio version here]) - 23.09.26 1235z | ||
== How to use == | |||
You only can be given this modem if you are a trustable Russian Millitary participant. | |||
---- | ---- | ||
[[Category:Modems]] [[Category:Russian military]] [[Category:Russian Military]] | [[Category:Modems]] [[Category:Russian military]] [[Category:Russian Military]] | ||
Latest revision as of 18:23, 23 September 2026
CIS-12 (Also known as MS5, FIRE, AT-3004D, or AT-3104D) is a 12-tone PSK Russian military multi-channel modem. It features scrambled voice/ data-communication at a maximum data rate of 4800 bps. Each subcarrier transmits at 120 Bd. There is 200 Hz of spacing between each subcarrier.
This waveform is transmitted by the AT-3004D and the newer AT-3104D military modems in use by the Russian Military. These modems were designed to have many different devices plugged into them to form the modem’s input – most often teleprinters unique to the different military services and civilian agencies that use them, and also, vocoders and speech encipherment systems, but all are transmitted in the same fashion.
A characteristic trait of this signal is the unmodulated pilot tone at 3300 Hz.
Multiple stations use this format
Logs:
CIS-12 testing, very first appereance of actual data use - 19.09.26
Navy CIS-12 file data testing (audio version here) - 23.09.26 1235z
How to use[edit | edit source]
You only can be given this modem if you are a trustable Russian Millitary participant.