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Andrew deploys Olympic train comms service |
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Monday, 11 August 2008 |
A new high speed train sprinting between
Beijing and
Tianjin in
China is supporting super-fast wireless communications onboard thanks to Andrew. Andrew and Siemens jointly designed an advanced wireless communications system for the CRH3 Harmony multiple unit trains, which were developed specifically for the Olympics and have maximum speeds of 350 kilometres per hour. The CRH3 trains began running on the Beijing-Tianjin high speed railway line on August 1, helping bring guests from all corners of the world to
Beijing for the 2008 Summer Olympics. Andrew installed and deployed MIR-T in-train repeaters in some compartments, which transmit and receive wireless signals to passenger handheld devices from existing base stations near the railways, providing passengers with high-quality and high-reliability mobile phone signals while they travel. The company also conducted extensive on-site testing and radio frequency measurements to confirm the system will meet passenger expectations. All those travelling the 120 kilometres between
Beijing and
Tianjin can now pass the time on activities such as talking to friends or checking business email. Andrew is a leader in repeater product technology, as evidenced by the dynamic gain control of its MIR-T in-train repeater series, which automatically adjusts the upstream and downstream gains, preventing excessive high upstream noise from decreasing the reception sensitivity near the base station. On high speed trains, the upstream and downstream gains must be adjusted rapidly to maintain the relative stability of the wireless signals for passengers onboard. Andrew's MIR-T in-train repeaters, which are mounted using a standard 19-inch cabinet, have low power consumption and are unique in their wide-spectrum voltage adaptability, again meeting the needs of the transport environment.
www.andrew.com |
