At 11 o'clock on April 24, 2019, China Capital Airport Terminal 2 and Daxing International Airport West Tower, through the digital trunking system handheld walkie-talkie, realized the first call.The success of this connectivity test marks the formation of a “big family” of the Capital Airport and Daxing Airport cluster communication system, which makes the system network coverage larger, the use of the population wider, and the demand configuration more flexible.

The Push-to-Talk Over Cellular (PEC) soft intercom is more and more popular because of its convenient use and no distance limitation. It is widely used in various industries.However, the public network intercom cannot completely replace the traditional private network intercom system, especially the

With the rapid development of police information, the demand for communication means has been continuously improved by local police agencies. In addition to the most basic voice communication, the police digital trunking wireless communication system is moving towards system IP, business diversifica

For forestfire protection, one of the biggest challenges to the firefighters is communication. How to help fire fighters to set up a stable and instant network? In this article, we will introduce the chanllenges and solution that the communiction system has in fire protection.

Public safety and public services are a very challenging task for government agencies. How to use limited resources effectively, How to improve the government's ability to respond quickly to emergencies and resist risks, and how to provide citizens with faster emergency assistance services, is incre

In many cases, especially in buildings, tunnels, large public spaces, stadiums, etc., The signals from cellular towers can not provide sufficient coverage, or user density exceeds the range that would normally be adequate. In these cases, the coverage of the above areas can be expanded by installing

What is the biggest mistake that customers make when buying/putting in a DAS?, IFLY

How much does a DAS system cost? DAS (Distributed Antenna System) costs depend on a few different things. The first thing is the frequency range. Building type definitely another factor that determines price. How to make a price requires you to judge the factors.

The goal of this paper is to find out a suitable disaster relief wireless network system for disaster rescue application.