Projects · radio communication
Communication complex "Tsifra-M"
Digital radios with interference-resistant voice transmission, cryptographic protection and compatibility with the existing analogue radio fleet.
Frequency range 146–174 MHz
Radio interface APCO 25
Range up to 25 km
Data protection DES, GOST 28147 Functions Components Radios Other projects Functions of the complex Analogue mode for compatibility with legacy radios supporting PL tones. Individual, group and broadcast calls. Interference-resistant digital voice transmission. Cryptographic protection of transmitted information using the DES and GOST 28147 algorithms. Data transmission and reception via USB and RS-232; control and programming of radios via USB. APCO 25 radio interface. Transmission and display of service information: source and recipient identifiers, subscriber group number. Components of the complex Portable, vehicle and base radios Headsets and remote controls Public telephone network interface units Cryptographic key fill devices Cryptographic key generation centre workstation Master key storage unit management workstation Battery chargers Antennas Radios of the complex Portable Tsifra-PM Frequency range146–174 MHz Rangeup to 8 km Continuous operationfrom 8 h Weightup to 600 g Vehicle Tsifra-AM Frequency range146–174 MHz Rangeup to 25 km Powervehicle on-board supply Extra devicescan be connected Base Tsifra-SM Frequency range146–174 MHz Rangeup to 25 km Telephone network accessyes Power220 V mains