In outdoor activities, the most important role of walkie-talkies is to enhance the confidence of the team leader and the whole team, to know whether the road ahead is easy to walk, and to know that the back team pulls away the players, you can master the rhythm, which is very important for the happy march of the whole team.

● Basic operation of walkie-talkie:

1, install the battery and confirm that it is locked with the body

2, check the antenna, confirm that it is in good contact

3, start up

4, set or check the frequency (channel), this machine and other walkie-talkies of the same team (group) should be on the same frequency (channel)

5, press the launch key PTT, and try to connect with the walkie-talkie of the same team (group), and at the same time adjust the volume, and then put into use after confirming that the sending and receiving are normal.

● Precautions for the use of walkie-talkies:

1. When the walkie-talkie is in a call state, keep the walkie-talkie in a vertical position and keep the MIC (microphone) at a distance of 3-4cm from the mouth.

When the walkie-talkie is launched, it is at least 2.5cm away from the head or body.

2. During use, it is not allowed to turn on and off many times at will, move the channel selector at will, press the PTT switch (transmit key) at will, pay attention to adjusting the volume to the range where the signal can be accurately heard, set the frequency at the specified frequency, and charge in time if the power is insufficient.

3. Take good care of the walkie-talkie and handle it with care. Do not carry the antenna to move the walkie-talkie. Do not disassemble the antenna and battery at will. Leave the microcomputer and charger when talking.

4. If abnormal smell and smoke are found on the walkie-talkie, turn off the power immediately, take out the battery, and report to the supervisor for repair or replacement in time to avoid affecting normal work.

5. When using walkie-talkies, you should speak Mandarin and standard polite language. It is strictly forbidden to use walkie-talkies to make jokes or talk about things unrelated to work.

6. When using walkie-talkies, the language should be concise and not cumbersome, not procrastination at all, the organization should be clear, the tone of voice should be soft and peaceful, and there should be no impatience or boredom.

7, general outdoor activities, more than a dozen people, with 2-3 walkie-talkies is enough, a captain, a pathfinder, a guard, more chaos.

8, walkie-talkie generally has 10-20 call channels, as long as the same channel can talk to each other, no matter how many. If a channel is not clear or there is interference, you can discuss it and switch to another channel. Don't forget to discuss it. If one changes and the other does not change, then you will be blind.

● Some frequencies and suggestions that may be useful:

145.000MHz and 433.000MHz are internationally used emergency frequencies. Anyone can use these two frequencies to call for help in an emergency. However, it is a proprietary service frequency in peacetime and cannot be occupied by users without a radio station license.

It is recommended that everyone set a more commonly used frequency when going out for activities, so that it will bring you and others a lot of help in an emergency. Imagine: there is an accident in a team, and Their call signal is exactly the same frequency as the walkie-talkie you used, so you saved the team. There is another situation: you have an accident, you use the walkie-talkie to call others (you don't know the communication frequency of other teams at all), and you start to search for the main communication frequency with the walkie-talkie in a helpless situation. Miracle happened, you joined the communication frequency of another group, and they knew your location.

● About Extending the Use Time of Interphone:

The current battery capacity of interphone can generally stand by for more than ten hours to more than one day, but frequent calls or high-power transmission may run out of battery power within half an hour to two hours. Large-capacity batteries should be selected as much as possible; On the premise of maintaining normal communication, try to choose the minimum transmission power; Regular contact can be enabled when activities in low-risk areas for a long time, for example, contact can be made every half hour or five minutes before and after one hour, and power can be saved at other times. However, activities in high-risk areas should be kept on as far as possible.

● Basic contact method of walkie-talkie:

Remember, walkie-talkie calls are simplex (unlike phones are duplex). If you keep pressing the button and occupy the channel to talk, others will not be able to say it. Therefore, intercom is popular with short message dialogue, one for you and one for me.

Use walkie-talkie to make calls concisely and to the point. In addition to wasting limited electricity, it is also easy to make mistakes. Pay special attention in emergency situations. In the

communication link, a paragraph (especially a large paragraph) should be finished with an ending slogan to avoid "collision" between the two sides. The interval between the two sides should be greater than one second so that others can insert it when they have something to do.

Important content should be repeated to avoid errors.