Hand station, use to press the intercom button to speak. The details are as follows:
A, hand station introduction
Radio can be divided into three kinds, simplex, half-duplex and duplex.
1, simplex: that is, can only be alone to receive or send a letter to the radio, these two can not be done at the same time. When sending a letter, it can not receive signals; when receiving a letter, it can not send signals, otherwise it will lead to the inability to copy.
2, half-duplex: and simplex similar.
3, duplex: that is, you can receive and send letters at the same time the radio, the two can be carried out at the same time. Such as we all use cell phones, cell phones also belong to a kind of radio, but the power is smaller, the need for relay stations (the role of signal amplification).
Two, in the process of using the hand radio, should pay attention to the following issues:
1, the language must be simple, concise, easy to understand.
2, when calling each other, should pay attention to the order of speech, call, it is best to say the call sign of the person being called twice. For example: wild goose, wild goose, here is the cheetah, copy and receive, please reply.
3, after recounting an event, there should be a closing statement, such as: wild goose, please slow down the speed of the car, the back of the car a little larger distance finished.
4, in the convoy traveling, in addition to serving as a number of task vehicles, other vehicles should try to keep watch and listen. Task vehicles include: camera car, lead car, head car, communication car, tail car, motor vehicle.
Routine maintenance of the walkie-talkie
1, the walkie-talkie after a long period of time, press the Jian, control knob and the case is easy to become dirty, please remove the control knob from the walkie-talkie, and use neutral detergent (do not use strong corrosive chemicals) and a damp cloth to clean the case. Use of chemicals such as stain removers, alcohol, sprays, or petroleum agents can cause damage to the surface and housing of the intercom.
2. Hold the walkie-talkie gently and do not move the walkie-talkie with the hand-held antenna.
3, when not using the accessories, please cover the dust cover (if equipped).
The above information reference? Baidu Encyclopedia - walkie-talkie