TCS-910/E Troposcatter Communication System

Description

communication (using reflection of the troposphere layer and scattering) in frequency band of 4.4 ~ 5 GHz for establishing secure/reliable voice communication including various types of telephone communication lines (Hot Line, FX & internal, 4-wire, 6-wire, and …) and data/voice communication. This system is considered for transmitting information of radar sensors, voice messages, and data of radar sights from operational fields to command & control centers via the troposphere layer beyond the horizon paths where the Line of Sight (LOS) communication cannot be established and more than 150Km communication distance. In order to establish various types of command network communication, most of the required communication ports including fiber optics, Ethernet, LAN, E1 … are available in the system. Considered capacity for communication link is 2Mbps. In case of decreasing the capacity to 1Mbps, 512Kbps, and 256Kbps, sensitivity and communication distance can be increased. All information i.e. voice communication, radar data, and or exchanged videos are encrypted via complicated encryption systems and actually nothing can be eavesdropped/decrypted by enemy. For increasing communication distance, in addition to benefit from the link as a point-to-point communication link, it can be operated as repeater too. General specifications Frequency range4.82-5GHz & 4.40-4.58GHzChannel space1MHzFrequency precisionbetter than ±1ppmIF frequency70MHzMin. space between TX/RX240MHzfrequencyless than 5%Type of modulationQPSKRate of transmissionmore than 2Mbps, fractional E1Communication portsE1, Ethernet, RS232 including O.W 64KbpsRX specifications Noise levelbetter than 4.5dBSensitivity for BER 10e-5-90dBm@2048KbpsDynamic ragebetter than 4.5dB TX specifications Output powermax. 400WType of amplifiersemi-conductorAntenna radiation powermax. 200WProtection against power reflectionavailableProtection against high temperatureavailableAntenna specifications Type of antennareflectorAntenna diameter1.8-2.0mPolarizationvertical & horizontalGainmin 37dBi3 dB Beam widtharound 3°VSWR< 1.5:1Isolation between Tx & Rx Ports40 dBFront to back ratio (minimum35 dBSide lobes Suppression (typ25 dBEnvironmental and mechanical specificationsOperating temperature-10 to 45°inside shelter Outside shelter-20 to 60°Amplifier-10 to 55°Humidity95% at 30°CWind speed25m/sAltitudeup to 4000mSubjected toMIL-STD-810FPower supply specifications Power consumption20KWVoltage220 VAC ±10%Frequency50Hz ±5System dimension Indoor dimension of thelength: 4.5m, width: 2.2m, height: 1.8mCommunication shelteralong with trailerTrailer15-ton truck with Off Road capability (proper to move through rough paths