Network repeater WZJ-I

opticalwirelesscommunication system

450M radio repeater is a device that transmits the train dispatch radio communication signal through space relay. It is one of the solutions of the weak field leaky cable in the train dispatch radio communication system. Main functions: Meet the requirements of 450M train dispatch radio communication B1/2 mode The gain is more than 90dB, which is adapted to the enhanced coverage of weak field edge signals . The installation is convenient,thus shortening the installation period and reducing the cost of construction and installation. The cost of the system is low. It is equipped with network management system to carry out remote measurement and control for repeater, so as to realize active alarm and reduce maintenance. SoC embedded design. The threshold, gain, power and so on use digital control with high degree of intelligence; With advanced power supply design, when there is no signal, the equipment is in standby state with low power consumption. It adapts to remote power supply. It provides broadband transparent transmission channels, which is compatible with the leaky cable repeater, the mutual control platform and other systems. Operating frequency range: uplink 457 ~ 459MHz; downlink 467 ~ 469MHz Input and output impedance: 50Ω The uplink input noise coefficient: £4dB The maximum output power of the uplink and downlink: ≥5W Maximum gain of equipment: uplink > 90dB; downlink > 90dB The gain control range: ≥30dB AGC control range: 30dB