Is the walkie-talkie used in places where there is no signal?

As long as you say that there is no signal, there is no vacuum, there is frequency, the walkie-talkie can be used.

【the reason】

The intercom is used to transmit voice signals by means of radio waves. It does not require a switching station. It is a one-to-one working mode, that is, one transmitting signal, and the other receiving signals, as long as two (or more than two) The walkie-talkie works on the same frequency and the position is within the signal transmission range.

The higher the power of the walkie-talkie, the farther the transmission is, the better the penetration effect will be. However, when the walkie-talkie is used, the distance from the person's head is relatively close. The state stipulates that the maximum power of the walkie-talkie should not exceed 5W, more than 5W for the human body. It is harmful, so it is not suitable for long-term use.

[Cannot be used normally]

Usually, the specification will specify the specific distance of the communication distance, but generally refers to the open space, that is, the distance that can be achieved without obstacles. Two people cannot exceed this established range. If it is still not working properly within the scope, there are the following reasons:

1 Obstacles in the surrounding environment, such as tall buildings, trees, outdoor billboards, etc., they will absorb and block the radio waves emitted by the intercom, directly affecting the transmission distance of the signal.

2 Excluding the influence of various anti-jamming capabilities inside the walkie-talkie, in densely populated cities, signal interference caused by interference sources from other walkie-talkies, infinite devices, and electrical equipment to the walkie-talkie is likely to occur.

3 Different weather, temperature and even different day and night will also affect the transmission of signals.

Above, it is recommended that users can measure according to their actual needs, whether they are purchasing or using, and choose the model equipment that they use.