The Russian diplomatic service maintains point-to-point HF radio links with dozens of diplomatic missions throughout Europe, Africa, and Asia. Although those links no longer carry messages from Moscow, the missions still send upstream traffic over them.

General information

This information is applicable to all links, regardless of the mode.

  • Message Format: Description of the header format used on the Russian diplomatic links.
  • Link IDs: Numeric IDs for the Russian diplomatic missions, used in place of geographic names.
  • Schedule: Timetable of routine contacts with Russian diplomatic stations.
  • Frequencies: Fixed frequencies for each Russian diplomatic station.

Current modes

The communication modes used on this network are proprietary, and contain unique MFSK and OFDM waveforms.

  • "Perelivt": Used on most point-to-point links since the mid 2010s.
  • Serdolik: Used on most point-to-point links from the early 2000s until the mid 2010s, still the primary mode for a few embassies.
  • Mazielka: Selective calling system used exclusively by Moscow, associated with the above modes.

Obsolete modes

  • RTTY: Used on most point-to-point links from the mid 1980s until the early 2000s.
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