Knowledge

The stronger the output power of the transmitter, the greater the coverage of the transmitted signal.

The wireless walkie-talkie can be used, but it must be legal, it must be allowed and stipulated in the scope of the state, and it must be approved before it can be legally set up and use the frequency

After long-term use of the walkie-talkie, it is easy to get dirty by pressing the key, control knob and housing.

In a car with an airbag, do not place the walkie-talkie within the range that the airbag may be involved when deployed.

Press the button, you can speak, release the button, you can answer.

Professional machine generally uses very good performance plastic material PC+ABS, good appearance luster, not easy to aging, wear, product durable.

Frequency error: the difference between the unmodulated carrier frequency and the assigned frequency.

From the communication business: divided into public walkie-talkie, digital walkie-talkie, police walkie-talkie, Marine walkie-talkie, aviation walkie-talkie.

From the equipment level, amateur radio walkie-talkie and professional radio walkie-talkie industry.

Digital walkie-talkies can make better use of spectrum resources, similar to cellular digital technology, digital walkie-talkies can load more users on a specified channel, improve spectrum utilizatio

From the technical design, analog walkie-talkie and digital walkie-talkie

From the mode of communication work, the simplex for simplex communication work and the duplex for duplex communication work .