As a wireless communication tool, walkie-talkies have their own characteristics compared with mobile phones. In the one-to-one, one-to-many directional special communication, it has the characteristics of rapid communication establishment, especially the one-to-many characteristics that ordinary mobile phones cannot Comparable. In the past, walkie-talkies were widely used in government departments such as military, public security, security, ambulance, and public utilities. With the development of the economy and the increasing demand for mobile communications by the people, walkie-talkies have gradually begun to be used in taxi dispatch, security, property management, construction sites, and hotels. Wait for civilian occasions. Through this shopping guide, you can understand the precautions when buying walkie-talkies/radio equipment.
Generally, the communication distance within 2-3 kilometers can be regarded as short-distance communication. For individual users, civilian walkie-talkies can be purchased. For unit users, low-power walkie-talkies can be purchased through application. If you want to ensure the communication effect, you can choose professional conventional walkie-talkies. Need to communicate within the city, the communication distance is within 3-10 kilometers, you can consider buying a professional walkie-talkie. If it is farther away, it is best to use the base station to communicate with the handheld walkie-talkie, or the vehicle-mounted radio and the vehicle-mounted radio base station, we can use a vehicle-mounted walkie-talkie with a relatively large output power. If users need longer distances or better communication quality, they can consider using trunked walkie-talkies if they have no networking. The trunking walkie-talkie is supported by the radio network, so the communication distance is relatively long. The effective distance is up to 1530KM. This walkie-talkie needs network support, so once it is offline, just like a mobile phone offline, even if the two parties are face to face, they cannot make a call.
For radio equipment, the size of the transmission power is very important. For the same wireless device, the price difference between products with high transmission power and products with low transmission power is not small. Not only that, the difference in transmission power also directly affects the data transmission stability of the wireless network. Therefore, paying attention to the transmit power of the selected device is also an important link in the process of selecting a wireless device. At present, the transmit power of wireless network equipment is directly marked in the device manual, and some indicate the size of the transmit power by the distance of the transmission. Under normal circumstances, the transmission power of the wireless device should be between 25mW and 50mW, or the transmission distance should be between 50m and 200m. If you can’t find the transmit power value on the device nameplate or manual, don’t buy it at will-
Professional walkie talkie
Professional walkie-talkie refers to a walkie-talkie with a transmission power of 4-5W and a frequency range of 136-174MHz or 400-480MHz. This type of walkie-talkie has a long talk distance between 3 and 8 kilometers (depending on the specific environment) . The operation is relatively simple because most professional walkie-talkies do not have a numeric keypad and only have two knobs to control the number of channels, power and volume switches. The shortcomings of professional walkie-talkies are that they are larger and heavier, but they are more prominent in terms of anti-water, anti-vibration, anti-fall, and anti-aging, and the performance of the walkie-talkie is much more stable. The price of professional walkie-talkies is relatively high (500-2500 yuan) and is generally used in construction projects, property management, and factory workshops.
Commercial walkie talkie
Commercial walkie-talkie refers to a walkie-talkie with a transmission power of 0.5-4W and a frequency range of 400-480MHz. This type of walkie-talkie has a talking distance between 800 meters and 8 kilometers (depending on the transmission power of the walkie-talkie and the specific environment) . Commercial walkie-talkies are lightweight and beautiful in appearance. The walkie-talkie is fastened to the waist through the belt clip of the walkie-talkie. Wearing headphones can free your hands and improve work efficiency. The price of commercial walkie-talkies is relatively higher than that of professional walkie-talkies. They are generally used in shopping malls, supermarkets, retail, factories, and manufacturing industries.
Civilian walkie-talkies refer to walkie-talkies with a transmission power of 0.5W not greater than 1W and a frequency range of 409MHz. Civilian walkie-talkies generally have a short talk distance (3 kilometers in an open area), which is a wireless communication device approved by the state to be used without a license. Civilian walkie-talkies are small in size and diverse in color. The price is generally only 300,600 yuan, which is more suitable for personal business trips, tourism, and restaurants.
Amateur walkie talkie
Amateur walkie-talkies are radio walkie-talkies designed and produced specifically to meet the needs of amateur radio enthusiasts. This kind of walkie-talkie can also be called "playing machine". For this amateur personal radio service, various countries have opened up dedicated frequency bands allocated to amateur radio sports enthusiasts. The frequency bands developed by our country are 144-146MHZ and 430-440MHZ, and countries in the world generally use this frequency band. Hobbyists only need to buy their favorite models and apply for a local radio network license to chat with others. Countries in the world generally use this frequency band.
Explosion-proof walkie talkie
Among the many wireless walkie-talkie brands, there are not many brands with explosion-proof walkie-talkies. Currently, there are only three walkie-talkie brands (MOTOROLA) Motorola, (VertexStandard) Vertex and (HYT)-Haoyitong on the Chinese market. Motorola's explosion-proof walkie-talkie has competed in the explosion-proof walkie-talkie market with more than eight floors in China with its superior performance. Explosion-proof walkie-talkies refer to walkie-talkies that can work in flammable and explosive environments, such as: coal mines, liquefied gas filling companies, oil depots, oil fields, petroleum, gas station chemicals, petrochemicals, coal mines, mines, natural gas, chemical plants, flour Processing plants, flax processing plants, coal processing plants, fire fighting.
Railway walkie-talkies are undoubtedly special-purpose walkie talkie devices tailored by walkie-talkie manufacturers according to the actual work needs of the railway and railway departments. The transmitting power is 4-5W, and the frequency range is optional within 440470MHz. There are generally 2-4 function buttons on the front of the face shell of the railway walkie-talkie, which are used for the selection of communication in different environments in plains and tunnels, and the switching between stations and locomotives. Because the train is very noisy, the audio output of the walkie-talkie is very demanding, and the walkie-talkie is compressed and amplified by voice, making the call sound quality clearer and crisper.
Police walkie talkie
Police walkie-talkies are special equipment for public security systems. The frequency range of police walkie-talkies is 350-370MHz and 370-390MHz. No one is allowed to steal or embezzle the frequency resources of the public security system's special walkie-talkie in any way. Police walkie-talkies have many functions, and the general appearance is mostly keyboard type. When we buy wireless walkie-talkies, we should pay attention to the transmission frequency range of walkie-talkies mostly (400-420MHz, 450-470MHz) to avoid unnecessary trouble.
The working voltage of the car intercom is 12.5V. The current car voltage is divided into 12V and 24V. When the car intercom is to work on a car with a voltage of 24V, a transformer needs to be installed between the car and the intercom. The transmitting power of the vehicle-mounted walkie-talkie is 25-50W, the power is larger, and the signal is transmitted farther. The car walkie-talkie can only be fixed in one place, and it is not as convenient to use as a handheld walkie-talkie. Car intercoms are generally used in fleets.
Transit base station
The specific function of the relay station and the base station is to transmit the received wireless signals with greater power through internal processing, so that the wireless communication distance can be extended. To put it simply, the relay station and base station are a wireless communication signal transmitter. As your company's business develops and grows, so does the need for two-way communication. Using relay stations and base stations can enhance your communication capabilities. And through our powerful dispatcher and repeater, it can promote the coordination of system resources and broaden the communication range of the walkie-talkie.