Chinese Airport Deploys 400 MHz Digital Trunking System From Hytera
Thursday, August 15, 2019 | Comments

Changsha Huanghua International Airport in South Central China’s Hunan Province deployed Hytera’s 400 MHz digital trunking system and multimode radios. Since September, on-time rate of flights at the airport has remained above 80% for 14 consecutive months, ranking first in the South Central region for 11 consecutive months.

Because of the increase in trade, tourism, exhibition and cultural exchanges, the traffic volume of Changsha Huanghua International Airport has maintained a strong growth rate in recent years. As the passenger throughput grew at a rate of 8% every year, security facilities in the airport became overloaded. The traditional 150 MHz analog system of the airport had spotty coverage. The radios could also conduct only voice communications, and the anti-interference ability was unsatisfactory.

Airport business departments, airlines, production units and airport-stationed units built their own communications systems. As a result, there was no unified command-and-control system or unified emergency command channel, so overall command often lost charge of the whole situation, greatly affecting security and efficiency of airport operation. The airport needed a private network communications system with multimedia integration and unified dispatch to ensure operation safety.

To solve the problem, Changsha Huanghua International Airport adopted a broadband-narrowband convergence solution based on a 400 MHz digital trunking system and 4G broadband network applications. With the 4G private network that the operators built for the airport, the customized A-CDM system and more than 500 radios, the airport has formed a closed-loop business management mode of pre-planning, in-process monitoring and post-analysis, which ensures the orderly and efficient implementation of ground services and realizes the whole process management of production tasks.

The system monitors the landing time of aircraft in real time and automatically informs the staff of tasks via the radios. The staff can be ready 15 minutes before landing. The built-in 400 MHz trunking module of the radio ensures mission-critical voice communications in real time.

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