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R-181-50TU is designed to ensure open, masked and secured (using external CAC systems - coded automatic communication) radio communication between mobile and fixed objects in tactic control level to be installed in armored and unarmored, wheeled and tracked vehicles. It provides for the possibility of voice information and data (digital information) transmission and reception, under severe operating conditions featuring increased noise immunity and security of operation with radio sets compatible in frequency range, modulation formats and operating modes.

Operating types:

  • analog voice reception and transmission with frequency modulation;
  • digital voice reception and transmission;
  • data streaming and batch transmission with ARQ at rate from 9.6 to 19.2 kbps.
Operating modes:
  • single-frequency and double-frequency simplex;
  • voice information and data reception and transmission in pseudorandom operational frequency readjustment (PROFR) mode;
  • “associated channel” (voice and data transmission on a single channel with priority selection);
  • operation with a noise suppressor;
  • noiseless coding; - technical masking out;
  • automated radio data recording;
  • scan reception at 8 preset frequencies;
  • subscriber, group and circular type of the users’ addressing;
  • external PC control; - saving (standby) reception;
  • tone call transmission and reception.
  • easy operation through automated selection and input of keys, frequencies, etc. radio data;
  • radio has S1ТCH interface to operate with various types and kinds of internal communication and switching equipment: R-184, PU-3, R-124, R-174, 1Т803М, etc.;
  • external device remote control via RS-232 interface;
  • transmitter power level flexible change;
  • emergency radio data cancellation;
  • built-in software health monitoring diagnostics;
  • flexible and functional software aided parameter setting;
  • automatic and manual keypad lock;
  • transceiver is made in sealed high impact aluminum alloy housing.

General performance characteristics
Parameter Value
Operating frequency range, MHz 30–108
Number of channels: 100
Frequency spectrum pitch, kHz: 12.5 / 25
Transmitter output power, W, kHz: 5 / 10 / 25 / 50
PROFR rate, jumps/s: min 200
Receiver sensitivity, µV:
G3E, F1W
Receiver sensitivity, µV:
Bit rate, bps:
9600…19 200
Operating temperature range, °C: – 40…+ 60
Transceiver weight / with a strut, kg:   19 / 23
Overall dimensions / with a strut, mm:
322 х 196 х 220 / 426 х 220 х 22
Power supply, V / А: 27 (+2 / –5) / max 12
single mechanical shocks 
multiple mechanical shocks  

500 g / 0.2 to 2 ms
20 g / 5 to 15 ms

Optional accessory
  • Shock absorber strut
  • On-board broadband antenna 
  • R-181-BAF antenna filter unit 
  • PU-3 item (providing with internal and external communication up to 3 users) 
  • R-184 internal communication and switching equipment
  • Tank helmet with laryngophone-telephone headset 
  • Lapel switch (helmet connection to PU-3, R-184 or R-181-50ТU devices) 

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