VEZHA-S

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VEZHA-S
RUS FSK COMMS.jpg
Frequencies 2.755 MHz,12.165 MHz
Frequency Range 2.755 MHz - 12.165 MHz
Mode USB
Modulation FSK
ACF
Bandwidth 650 Hz
Location Russia
Short Description Two-way 100 Bd/500 Hz Russian Telegraph system, attributed name VEZHA-C (Tower-S), usage claimed to be by Russian Ministry of Communications (MinComSvyaz Rossii). Possible usage in meteorology under callsign RWD59.
I/Q Raw Recording
Audio Sample

Two-way 100 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second./500 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). Russian Telegraph system, attributed name VEZHA-S (ВЕЖА-C, Tower-S), usage claimed to be by Russian Ministry of Communications (Минкомсвязь России). Possible usage in meteorology under callsign RWD59. This signal has always been seen transmitted with another identical signal at another frequency, so it works on a two-way communication network. It's periodic transmission behavior is suspected to be ARQAutomatic Repeat reQuestAutomatic Repeat Query between the two users. Reported to be a very old Soviet-era system.


Logs have been posted attributed to this signal:
5.440,00 RWD59 - Moskva RUS PTTPush To TalkPress to TransmitMinistries of Postal, Telephone, and Telegraph Service (Soviet Agency) RUS-ARQAutomatic Repeat reQuestAutomatic Repeat Query 100/500


Samples[edit]

Frequencies[edit]

This mode's frequency range is between 2755 kHzKiloHertz (kHz) 10^3 Hz and 12165 kHzKiloHertz (kHz) 10^3 Hz.

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