Multiple access modes: FDMA/SCPC/DAMA/TDMA 
Operation frequency range: 
Transmission 14,02 - 14,50 GHz 
Reception 10,96 - 11,20; 11,46 - 11,70 GHz 
Antenna diameter: 1,2; 1,8; 2,4m 
Signal polarization: linear, orthogonal via reception and transmission paths 
Receiver noise temperature: not more than 120oK 
Max. Transmitter power: 1,5 W 
Frequency selection: 100 KHz steps within 500 MHz band 
Limit of transmitter power control: not less than 20 dB with 0,5 dB steps 
Relative frequency instability 10-7Hz/yr within the operating temperature range 
Modulation offset quadrature phase-shift keying (OQPSK) 
Max. Quantity of simultaneously operating channels 2 
Max. Rate of data packets transmission 64,0 kbit/sec 
Errors correction according to Viterbi algorithm R=1/2 
Error probability per bit of data 10-7 at Ebit/No > 7,6dB  
Voice signal coding GSM algorithm , 13,6 Kbit/s, echo suppression G.165., pause detector 
Power supply 220 v/50 Hz 
Power consumption with a 1W transmitter not more than 260W 
Indoor unit dimensions (2 units in total) 430x160x430mm 
Total weight (with antenna and cables) 240 kg