Which kind of walkie-talkie has the longest communication distance ah, not too expensive!

The communication distance of the walkie-talkie is different because of its different sending power, so according to the different sending power, we use different walkie-talkies in different occasions.

First of all, let's briefly introduce the transmission power of the walkie-talkie. The size of the transmission power on the radio equipment has a great impact, especially on the stability of the data transmission of the walkie-talkie, there is no negligible impact. Therefore, when we choose the walkie-talkie, the first thing to consider is the size of the transmission power of the walkie-talkie. In the instruction manual of the walkie-talkie, we can see the indicated power value or transmission distance, both of which can be used to judge the power size of the walkie-talkie. Generally speaking, the transmit power of the walkie-talkie is between 25mV~50mV or the transmission distance is between 50m~200m are normal.

The specific classification of walkie-talkie:

1, professional nature of the walkie-talkie

Professional nature of the walkie-talkie transmitting power between 4W-5W, it has two kinds of frequency, one is between 136MHz-174MHz, a kind of between 400MHz-480MHz. The communication distance of professional walkie-talkie, generally between 3000 meters and 8000 meters, of course, does not exclude by the environment when the communication distance has changed. Professional walkie-talkies are very easy to operate as they only have switches to control the channel, as well as power and volume. Although the professional walkie-talkie is relatively bulky, but it is also very good resistance to fall, vibration, waterproof ability. Professional walkie talkies are generally utilized more in factories, construction sites and other workplaces. Its price ranges from 500 yuan to 2500 yuan.

2, commercial nature of the walkie-talkie

Commercial nature of the walkie-talkie transmitting power in the 0.5W-4W between the frequency range of 400MHz-480MHz between the distance of its communication will change with the changes in the environment and change, in general, stabilized in the 800 meters to 8000 meters between. Since commercial walkie-talkies are relatively lightweight, they are usually placed on the waist and talk to each other through headsets. Commercial walkie-talkies are used in some large shopping malls, supermarkets, and retail businesses, and the price is comparable to that of professional walkie-talkies.

3, civilian nature of the walkie-talkie

Civilian nature of the walkie-talkie transmitting power in the 0.5W-1W between the frequency range in the 409MHz or so. Civilian walkie-talkie is exquisite and beautiful, its price is between 300 and 600, compared with the first two kinds of walkie-talkie is relatively cheap. However, the communication distance of civil walkie-talkie is only 3000 meters, which is only suitable for personal use.

4, amateur nature of the walkie-talkie

Amateur walkie-talkie is produced for amateur enthusiasts, also known as "play machine". Amateur walkie-talkies are used in China in the frequency bands of 144MHz~146MHz and 430MHz~440MHz, and can be used after the user applies for his/her own walkie-talkie to the local radio station to enter into the network.

5, car radios

Generally the working voltage of car radios is 12.5V, if you want to install car radios, and your car voltage is 24V, then you need to install a transformer before installing car radios. Although the transmitting power of the car interphone is between 25W-50W, and its signal can be transmitted far away, but the car interphone can't just change the place, it can only be fixed in one place, and it is usually used more in the fleet.

6, the police nature of the walkie-talkie

Police nature of the walkie-talkie has more features, but only in the public security system, the frequency range of 350MHz-370MHz, 370-390MHz, the police nature of the walkie-talkie band only allows the public security system alone.

7, the railroad use of walkie-talkies

The railroad use of walkie-talkies, transmitting power between 4W-5W, frequency between 440MHz-470MHz. Railroad walkie-talkies usually have 2-4 function keys for selecting the use in different environments. Due to the special environment on the railroad, railroad intercoms have high audio so that the sound emitted is also clearer.

Generally the communication distance of the walkie-talkie will be affected by the power, sensitivity, antenna, environment, sound quality and so on. So in the process of using the walkie-talkie, we should fully consider our own needs and the specific requirements of the use of the environment, the effective communication distance of the integrated walkie-talkie to make a reasonable choice.