In government, public security, emergency communications and other related fields, narrowband trunked communication systems represented by MPT1327, TETRA, and PDT have the characteristics of short call delay, group calling, and high command and dispatch efficiency, and have been widely used. The adv Read More

In recent years, rail transit has developed by leaps and bounds in China. In order to meet the needs of users for Internet, voice, SMS, TV and other services on the trains as well as subway monitoring systems, various communication facilities have been established. Good rail signal coverage can not Read More

Fishing boat radio communication plays a decisive role in the safety of fishery production. The following are some basic common sense of fishing boat radio communication. Read More

1. Increase transmit powerAlmost all walkie-talkies have high, medium and low transmission powers which can be adjusted. For the handset, the transmit power can generally be selected between 0.5 ~ 5W; the car station can be selected between 10W ~ 40W. If there is obvious noise when using low-power c Read More

Trunked communication is a mobile communication system that implements communication through base station relays. It is a communication system between public mobile communication and ordinary walkie-talkies. Co-frequency simulcast network refers to the arrangement of multiple co-frequency repeaters Read More

As a wireless communication tool, walkie-talkies have their own characteristics. In one-to-one and one-to-many directional special communication, it can quickly establish communication. In the past, walkie-talkies were widely used in government departments such as the army, public security, safety, Read More

First of all, we need to be clear that the functions of mobile phones and walkie-talkies are different. In other words, before we design these two products, their market positioning is different, so they have created different designs. Read More

Emergency communication is a communication method that can provide emergency services temporarily and mobilely after emergencies such as guaranteeing combat readiness, rescue and disaster relief, occurrence of terrorist incidents, and failure of communication networks.Emergency communications must f Read More

The walkie-talkie is the hallmark of HAM and the main advantage of HAM in communication. In the disaster environment, the walkie-talkie can play a special role. HAM is the pioneer of communication, and the importance of communication security in previous disaster relief is unquestionable. Read More