Joint Stock Company
Moscow Order of the Red Banner of
Labor Research Radio Engineering Institute

РусEng

Troposphere communication

REVOLUTION IN TROPOSPHERE COMMUNICATION

JSC MNIRTI has been the first worldwide to implement a well-known revolutionary idea in the troposphere communication, which has been waiting for the implementation for 40 years: continuous adaptation of operation frequencies to changing propagation conditions. It was in MNIRTI where the world's first operating model of a troposphere station (TRS) with a ‘floating frequency’ (code ‘Ladia’) was created in 2012. The TRS was adopted in one of the products by JSC Almaz-Antey. The method consists in continuous sounding of the radio channel, finding of an optimal frequency at each time and current adapting of the operation transmission frequency to such a frequency. At present, JSC MNIRTI has prepared a broad programme for the creation of a new generation of troposphere stations of the ‘Rubicon’ series that have some important advantages due to a number of know-hows:

• Dramatic increase in robustness – ten times and more – in comparison with all analogues (due to the replacement of powerful transmitters by composite antenna arrays).

• Reducing power consumption by half (compared to all other TRSs) – due to the advantages of using only the optimal frequencies for transmission.

• For the first time – the unique capabilities of frequency maneuvering over the entire range (due to no waveguide duplexers) – it is fundamentally important for mobile stations.

• For the first time – automatic adaptation of the bandwidth to the conditions of the propagation in the channel. The transmission speed will automatically increase with better propagation conditions.

• Deep unification of TRS equipment, including:

  • ability to create TRS modifications with different radiation powers – 200, 500, 1000 Watts, equipping the phased array with different numbers of unified modules;
  • full identity of all counter-working stations (there is no traditional division into letters ‘A’and ‘B’).

• No need to use powerful (now ‘sanctioned’) foreign SHF elements.

These advantages of the new TRS generation will provide them with broad market prospects – the possibility of supplies to sparsely populated remote regions of Russia (North, Siberia, East coast, etc.), as well as to Asian and African countries.