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.