First, the material of wireless walkie-talkie
The quality of walkie-talkies varies by price. Similarly, when we choose a walkie-talkie, we can choose a walkie-talkie suitable for our own use according to different environments. We usually see the high price of wireless walkie-talkie using superior PC, PC+ABS plastic materials and metal materials to build the body, this material generally has the wireless walkie-talkie wear-resistant, anti-fall, waterproof, anti-aging function.
The lower price of wireless walkie-talkie can also meet the daily use of materials, but the ability to cope with the special environment is less. So when we choose and buy must consider their own use of wireless walkie-talkie environment, in the construction site, project site, outdoor adventure and other special environment, we had better choose some materials better wireless walkie-talkie.
Second, process design
In addition to good materials, the process design is also an important part of the walkie-talkie. The quality of a walkie-talkie can be compromised if it's just a good material that isn't finely crafted.
Users often only pay attention to the external material changes of the walkie-talkie, and ignore the importance of internal design. For example, the circuits of low-cost walkie-talkies have no shielding protection measures, so all the circuits will be exposed to the outside, and the circuits will be easily damaged in the event of bumps and bruises. But the high price wireless walkie-talkie will adopt the closed protection way, when meets the external force time to be able to protect the circuit well.
Accessories are also different. Take the fixed way of the battery as an example, low-priced walkie-talkie USES the way of glue filling to fix the battery, while some high-priced walkie-talkie chooses the non-injection rubber pad to fix the battery, and the battery and the body achieve a perfect fit. At the same time, the expensive wireless interphone battery circuit board is designed to be flexible, which can effectively protect the battery.
Third, performance configuration
Call quality is an important reference factor to determine the performance of a wireless walkie-talkie. The high - performance wireless interphone has high sensitivity, good voice quality and anti - interference ability. The high performance walkie-talkie adopts the speech compression and coding technology which can be recognized according to the basic features of human language. It has a strong ability to suppress the environmental noise and can receive clear voice even in the very noisy environment.
In terms of talk channel, high-priced radio will take some more so than a normal radio, at the same time also equipped with mute code function mostly, mute code is in the information through the digital circuit design, in the wireless walkie-talkie information issued by adding the identification number, each channel and all allow encoding of a coding can call all the way in the group. For example, 20 channels and 38 silent codes can provide 760 (20×38) call combinations, which means that up to 760 sets of wireless walkie-talkies can be allowed to talk to each other without interference in an area within an effective call distance radius.
Compared with the slightly lower price of wireless walkie-talkies, the higher-priced wireless walkie-talkies may have more abundant functions of their own configuration. Some are equipped with bluetooth, so that we can receive information through bluetooth headsets in case we are not suitable for hand-held wireless walkie-talkies, such as cycling, without delaying the call at any time. There are also high-priced walkie-talkies equipped with radios and flashlights, so we don't have to worry about loneliness and darkness when we use them outdoors, which is more convenient to use.
Stability is crucial for walkie-talkies. High stability of the wireless walkie talkie can ensure the normal use in special circumstances, and the lack of stability of the wireless walkie talkie in bad environment is easy to lose the function of communication. So how do you determine the stability of a walkie-talkie?
One way to determine the stability of a walkie-talkie is to see if it has been tested internally and externally. All walkie-talkies undergo a variety of routine testing by the commission for model approval, some undergo 11 U.S. army standard tests, and some undergo rigorous internal testing, such as the industry's famous five-year accelerated aging test.
Fifth, call distance
Ordinary wireless walkie-talkies can be used in a normal barrier-free way up to 5-10 kilometers, but the actual environment causes 2-5 kilometers. In case of severe shielding in the basement, relay stations and omnidirectional antennas are needed to complete signal coverage. But there is a gap in the price of wireless walkie-talkies.
High cost walkie-talkies are equipped with high quality parts, so the call distance is better than that of low cost walkie-talkies. Of course, this is not absolute, and the use of the environment will have a great relationship. In the same environment, the product with larger communication distance is often of better performance.
Sixth, power size
There are many categories of wireless walkie-talkies, including professional wireless walkie-talkies, commercial wireless walkie-talkies and civil wireless walkie-talkies. Professional walkie-talkie refers to the wireless walkie-talkie with transmitting power of 4-5w and frequency range of 136-174mhz or 400-480mhz. Commercial radio talkie refers to the radio talkie with transmitting power of 0.5-4w and frequency range of 400-480mhz. Civil wireless interphone refers to the wireless interphone with the transmitting power of 0.5W not more than 1W and the frequency range of 409MHz.
Generally, the most expensive walkie-talkies are professional walkie-talkies and commercial walkie-talkies. The power of these two wireless walkie-talkies is about 5W, so their power is much larger than that of civil wireless walkie-talkies. Naturally, the talking distance is much longer than that of civil wireless walkie-talkies. Therefore, there is a certain difference between the high-priced walkie-talkie and the low-priced walkie-talkie in terms of power.
The above factors will lead to a significant gap in the price of wireless walkie-talkies, so we should not only pay attention to the price when buying wireless walkie-talkies, but also think clearly about the environment and purpose of using wireless walkie-talkies, so as to better choose the wireless walkie-talkies that are more suitable for us.