国产成年女人视频免费观看_又粗又大又爽 真人一级毛片_91最新国产偷产拍在线播放_亚洲国产二区在线_久久精品1204国产_91第一精品视频_成人深夜视频网站播放_欧美日韩大片免费观看网站_亚洲一区无码视屏_国产欧美日韩电影

  Walkie-talkie, in the past is a mysterious veil of communication tools, the general public are generally from the film and television to understand its magical features, you can instantly wireless calls and not subject to geographical constraints, especially in the police or war movies, the police round up the bandits or military strategic command, a moment can not be separated from the walkie-talkie safe and efficient command and control and instructions conveyed, even if the desert mountainous areas in the middle of nowhere, but also can talk! Even in the desert and mountainous areas in the middle of nowhere, you can still talk to each other freely! Now talking about walkie-talkies, we are all very familiar with, especially in the construction engineering, transportation, hotels and supermarkets or port terminals, mining projects, sporting events and other industries, their daily work, almost all inseparable from the use of walkie-talkies! However, how the walkie-talkie is actually “made”, few people know!
  A walkie-talkie communication quality is good or bad, the criteria for judging, not only the sound quality, battery life and communication distance and other factors. Good signal, clear sound quality, long battery life, long distance, often the most concerned about the majority of users of several elements, which is directly related to the communication experience! So, what are the precautions in the production of walkie-talkies in the R & D process, in raw materials, components and other aspects of what are the requirements in order to ensure that each product is excellent and outstanding communication quality!
  In the body protection, the walkie-talkie has a super-high whole body protection, anti-vibration and anti-drop more than 1.5 meters! The actual communication test shows that after 1.8 tons of car crushing, the body shell is still intact, the communication indicators are normal ...... Such high performance in the entire Chinese domestic walkie-talkie market is also very rare, and some test indicators even exceeded the international walkie-talkie brand!
  Die-casting is another important part of the walkie-talkie, from the material can be divided into aluminum alloy die-casting and ordinary die-casting. This part not only has the effect of rapid heat dissipation, at the same time has the special function of shielding interference, although it is not a high-tech parts, but its application or not on the wireless communication of the walkie-talkie has a great impact! In order to save production costs, some manufacturers do not hesitate to apply poor quality die-casting, or simply do not use die-casting, has been to obtain the price advantage! Although such a walkie-talkie is cheap, but in actual use, it will cause a lot of communication barriers, such as body hot, communication is interfered with and so on! Walkie-talkie application of the markets best aluminum alloy die-casting, not only good heat dissipation, interference shielding is also very outstanding, by the high-intensity communication operation test, not only the body is not hot, but also completely shielded from communication interference, communication effect is very satisfactory!
  Dustproof and waterproof is one of the very important test indicators of the walkie-talkie, the higher the industrial grade, the more adaptable to all kinds of harsh climate or communication environment. Walkie talkie IP67 dustproof and waterproof industrial grade, realize the complete isolation of dust, at the same time in the water depth of 1 meter below the soaking for more than 30 minutes, still can talk freely, fully meet a variety of wind, frost, rain, snow or dust, haze and other harsh communication environment of the use of walkie talkie needs!
  In addition, the walkie-talkie also applies industry-leading accessories in important parts such as speakers, vocoders, keys and batteries as always. For example, the speakers of Beifeng walkie-talkie are tested with 2W audio power load for 72 hours of uninterrupted call; and with 3W audio power load for 24 hours of uninterrupted call, and there is no change in the sound quality, which is still clear and pleasing to the ear. This kind of high-intensity test is unimaginable for ordinary walkie-talkies. Although the sound quality is good or bad thanks to the application of the industrys top vocoders excellent decoding, but if there is no good speaker, even the best decoder is difficult to play their excellent effect!
  The function buttons of a walkie-talkie, especially the PTT buttons, play a pivotal role in wireless communication operations! If there is no PTT button control, the walkie-talkie basically lost the call function (unless you have a headset and it happens that the walkie-talkie also supports voice-activated call function), and can not become a real sense of the walkie-talkie! Because the PTT in the wireless walkie-talkie communication is used very often, so it is also on the market ordinary walkie-talkie is most likely to fail one of the parts! Due to the manufacturing process and cost constraints, ordinary walkie-talkies in the test equipment is relatively weak, and the test standard is uneven, the quality can be imagined, some machines even less than 1 month on the failure of ...... walkie-talkie PTT and other core functions of the key, after up to 300,000 times more than the rigorous testing, that is, every day 500 times the UHF rate of transmission, the PTT is the most important component of the radio, the PTT is also one of the most likely to fail! It can be used for more than 600 days with 500 times of UHF transmission per day, which ensures the stability of every information instruction sent!
  In terms of battery, the application of ultra-high quality battery cell, with intelligent protection board, the actual test shows that after up to 500 cycles of charging cycle, still maintain 80% of the battery power to protect the communication time! That is to say, even if we carry out a charging and discharging cycle every day, it can be used normally for more than 18 months ...... And after such frequent charging and discharging cycles, only 20% of the battery capacity is lost, and in the next use, the battery can still maintain 80% of the power. This is a nightmare for those poor quality walkie-talkie batteries that are refurbished with old ones ......
  Chinas walkie-talkie has experienced 36 years of rapid growth, giving birth to many walkie-talkie brands. Along with the rapid integration of the whole industry and the popularization of walkie-talkie commercial and civil market, the communication demand of the vast number of users for walkie-talkie has been further enhanced, especially the rapid development of modern Internet of Things (IoT) technology and smart wearable and other intelligent technologies, which opens up a whole new field for the development of traditional walkie-talkie, which also puts forward a higher demand for various performance indexes of walkie-talkie! How to further develop the core intelligent technology and improve the product quality under the background of contemporary technology, combined with the industry opportunity of the global analog-to-digital transformation of the walkie-talkie, has become the challenge of the times faced by the majority of walkie-talkie merchants!