Guangzhou DSPPA Audio Co., Ltd.

DSPPA | Network PA System for Shijiazhuang Zhengding International Airport

DSPPA | Network PA System for Shijiazhuang Zhengding International Airport

Abstract: DSPPA network public address system has been applied to Shijiazhuang Zhengding International Airport, Hebei Province, China.

Project Overview

Shijiazhuang Zhengding International Airport

Shijiazhuang Zhengding International Airport (IATA: SJW, ICAO: ZBSJ) is the primary airport serving Shijiazhuang, the capital of Hebei Province, China. The airport is the hub for Hebei Airlines and a focus city for both China United Airlines and Spring Airlines. The airport has a 3400-meter-long runway and two terminals, with a total area of 209,000 square meters.


In response to the requirements of the airport for background music broadcast and emergency broadcast, we have applied our MAG6182II network public address system to the airport to ensure that daily broadcasting can be conducted in an orderly manner.

Project Spotlight

With the dual-server hot backup switching function, the main server can be switched to the backup server when it fails, thus safeguarding the orderly and uninterrupted operation of the airport public address system.

As a fire linkage module is inserted into the system host, the system can seamlessly interface with the fire system in a variety of ways to synchronously play the specified audio and guide the evacuation direction in case of emergency, thus ensuring personnel safety and financial security.

Besides, with the 8-channel power amplifier matrix controller, the zone amplifiers of the system are characterized by the main/backup switching function, so that the backup amplifier can be automatically activated when a zone amplifier fails, securing the normal operation of the public address system in each zone.

PC1021X is a device that integrates a signal matrix switcher, matrix partitioner, 8-way broadcast partitioner, the main/backup switcher, 8-way monitor and 8-way line detector, and utilizes multi-channel DSP signal digital processing, greatly improving the signal-to-noise ratio and reducing channel crosstalk.

Different audio sources can be played simultaneously in each network broadcast zone, and zones can be grouped for zone management and control, which is flexible and convenient.

Each zone is equipped with a SNR adaptive network noise sensor, so the volume of the corresponding zone can be adjusted based on the noise level on site.

Moreover, intelligent paging microphones are set in the control room and airport gates for quick and easy paging. And timing broadcast, audio sources and volume for zones can be controlled remotely through a PC, enabling unattended operation.


In addition, the system is customized to dock with the existing flight information integration platform through specified protocols, which can have control over all broadcast zones in terminals.

Project Highlight

▶▶ MAG6182II IP Network PA System

DSPPA network public address system is a two-way audio sound reinforcement system based on pure digital transmission. It combines the independent DSPPA protocol, standard TCP/IP protocol, H.264 and SIP protocol encoding to transmit audio and video signals in the form of data packets on the LAN and WAN, and has functions such as sound repair and automatic flow adjustment. The system holds powerful functions such as audio and video intercom, media information release, and Al alarm.

Project List

System Connection Diagram

DSPPA network public address system is highly appreciated by our customer as it leverages multiple technologies such as dual servers, multifunctional hot backup and automatic noise control to ensure the smooth operation of the airport.

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