Common problems when buying walkie-talkies
Mar 20,2024 | jianpai radio
1.Why does the walkie-talkie have no distance parameter?
Although transmission distance is an important performance indicator of a walkie-talkie, as an ultra-short wave communication device, its transmission distance will be affected by the power of the walkie-talkie, surrounding obstacles, and the height of use.
Power: Transmitting power is the most important basic parameter of a walkie-talkie. The amount of power will directly affect the stability of the signal and the transmission distance. Simply put, the greater the power, the farther the communication distance. The power of civilian walkie-talkies is within 0.5W. If it exceeds 0.5W, it is classified as commercial. To use commercial walkie-talkies, you need to apply for a license.
Obstacles: Obstacles will affect the transmission distance of walkie-talkie signals, such as buildings, trees, etc., which will absorb and hinder the radio waves emitted by walkie-talkies. Therefore, using walkie-talkies in urban areas will greatly reduce the communication distance.
Height: The height of use has a great impact on the radio. The higher it is used, the farther the signal will be transmitted.
2.Can walkie-talkies of different brands talk to each other?
The brands of walkie-talkies are different, but the principle is the same. As long as the frequency is the same, they can communicate with each other.
3.What is the communication distance of a walkie-talkie?
The power of civilian walkie-talkies does not exceed 0.5W. Taking 0.5W as an example, it can be used up to 3 kilometers away in open areas, and within about 1 kilometer when used in buildings.
The power of common commercial walkie-talkies on the market is around 5W to 10W. The communication distance of 5W walkie-talkies is about 5 kilometers when used in open areas. When used in buildings, the communication distance is about 1 to 2 kilometers.
4.Do I need a license to use a walkie-talkie?
Civilian walkie-talkies with a power within 0.5W and a frequency of 409-410Hz do not need to apply for relevant certificates. On the contrary, to use walkie-talkies exceeding this power and frequency, you must obtain an amateur radio operator's certificate and apply for a radio station license
5. How to choose the right walkie-talkie
Commercial and supermarket hotels: Commercial and supermarket hotels use walkie-talkies more frequently and may wear them all day long, so battery life and portability need to be considered more.
Outdoor self-driving: Outdoor adventures or frequent self-driving, the walkie-talkie must not only be wear-resistant and fall-resistant, but also need to adapt to various climates. In addition, the signal of the walkie-talkie will be unstable in the car when driving, and the function of supporting a vehicle-mounted antenna is also very necessary.
Property management community: Property management staff often need to run upstairs and downstairs, so the signal penetration of the intercom should be the first consideration.
Port terminal: The environment of the port terminal is very easy to be exposed to rain or sea water, so waterproofing should be considered. There are few very tall buildings in the port terminal location, so the power does not need to be too high.
اترك تعليق
