Submarine Clock USSR

Like all armed forces the CIS nowaday uses fast transmission modes via landlines and satellite for the vast majority of their communications. There is however still much traffic in Morse mode. Every listener sooner or later will hear one of the many Russian and Ukrainian tactical networks with messages of 5-figure - or 5-letter groups. Most of them use duplex mode on 2 day - and 2 night frequencies and change their callsigns daily. Interception is rarely worth it, the stations cannot be assigned to a command post. The text of course is encrypted. We can decode the Morse code (write it down), but we can't decrypt the text (understand the contents).
The discussion about the purpose of these networks is endless. Many of them may be for training, but by far not all: Most operators are skilled and training networks normally are not part of a higher structure.

Unlike most other Morse networks of the CIS Forces the Navy uses strategic callsigns which can be monitored over a long period of time. The most rewarding frequencies to listen at are the primary frequencies of the Navy HQ and of the Fleet HQ in Kaliningrad, Sevastopol, Severomorsk and Vladivostok, when they get in touch with mobile or fix stations. See: The Navy Headquarters .

My CIS Navy Monthly Summaries report all Morse traffic I intercepted and the most relevant news from the Russian Navy Portal http://rusnavy.com.
They can be found here: Downloads .