Ultra-long-distance wifi module wireless communication microwave communication knowledge popularization, after May 1st, the National Day is coming soon. For most people, the seven-day National Day holiday is a good day to travel or go home. However, in the eyes of Feirui's staff, the test of the wifi module is the top priority. Our more front-line technicians often travel to and from the seaside, both sides of lakes and other places under the hot sun, so as to successfully deliver our stable ultra-long-distance wifi modules to customers before the customer's delivery date.
In order to better obtain accurate data of the equipment, our employees often run back and forth. It is normal to leave early and return late. Sometimes they have to stay. In Fei Rui's mind, quality is the source of our development. We can stand out in many competitive projects, we are the strength of a team, product hard power is our external publicity confidence, do not do the best vows not to give up! We always keep in mind - the product concept of excellence and quality first. For every employee, happy work, active work, courage to undertake, and active dedication are the requirements of Feirui Intelligent for each employee.
In the daily life of Feirui people, because we often do remote microwave transmission modules, before testing, we need to measure the remote direction and make adjustments according to the results of the test data, which means that each test is not a simple one. Sometimes it is necessary to make multiple adjustments according to different tests, and sometimes the test results may not guarantee satisfaction, and the next test plan still needs to be carried out.
The sweat under the scorching sun bears the hard work of each generation of Feirui artificial products, but not every test weather is smooth. Sometimes the changeable weather in Guangdong is just sunny, and in a blink of an eye, the clouds are dense. Next, you can imagine. Therefore, before each trip, we will be fully prepared according to the actual weather and equipment carrying situation. At the same time, in the face of different situations, we will formulate more comprehensive solutions.
What is microwave communication, knowledge of microwave communication, when it comes to microwave communication, compared with everyone, many people often think that it is a mobile communication base station, but when you look closely, you will find some building roofs, in addition to base stations, there will be Some like drum equipment, in some wild, drum equipment is more common, but accurate, generally we call it a microwave communication antenna, when you look at it with your phone, you can see the style of it.
Microwave communication, in English, is microwave communication, which refers to electromagnetic waves with wavelengths between 0.1 and 1 meter. Its frequency range is 300mhz to 3000ghz. Microwaves are used as carriers to carry information and carry out relay communication. According to the different engineers of the band, the band is specially defined.
Different from modern communication network transmission methods such as coaxial cable communication, optical fiber communication, satellite communication, etc., ultra-long-distance wifi module microwave communication is a kind of communication that directly uses microwave as a medium, and does not require a solid medium. Microwave transmission can be used when there are no obstacles within a straight-line distance between two points. Microwave communication has the characteristics of large capacity, good quality and long distance. Therefore, it is an important means of communication in the national communication network and is widely used in various special communication networks.
In 1901, Makeney used 800kHz medium wave signal to conduct the world's first transatlantic radio wave communication test from England to Newfoundland, creating a new era of human wireless communication. In the early days, humans generally used long-term medium-wave communication, and it was not until the early 1920s that short-wave communication was discovered.
In 1931, the world's first microwave communication circuit was built in Dover, England and Calais, France. Microwave has entered the era of development. After World War II, microwave relay communication developed rapidly. In 1947, the famous American Bell Labs established the world's first analog microwave communication line between New York and Boston.
In 1955, troposcatter communications were successfully tested in North America. Satellite communications testing began in the 1950s and became operational in the mid-1960s. Due to the abundant frequency resources in the microwave band, the spectrum below the microwave band is very crowded, and mobile communications are also developing towards the microwave band. In addition, the development of digital technology and microelectronic technology has also promoted the transition of microwave communication from analog microwave communication to digital microwave communication. In 1947, the famous Bell Labs established the world's first analog microwave communication line between New York and Boston. By the late 1950s, Australia, the United Kingdom, Canada, France, Italy and Japan had installed microwave relay communication systems on their main routes.
Compared with other countries, microwave communication research in China started in the 1960s. At this moment, analog microwave is gradually replaced by digital microwave communication, and human beings have entered the era of digital microwave communication. Digital microwave communication is divided into PDH (pseudo-synchronous) and SDH (synchronous) two stages. From the end of the 1980s to the beginning of this century, SDH gradually occupied a dominant position in the transmission system, and the development of microwave communication technology ushered in an accelerated period.
At present, Bell Labs' microwave communication technology and wired communication technology in New York have begun to enter the IP era. The wired transmission network dominated by optical fiber communication dominates and becomes a necessary network transmission method for families. For remote areas, due to the high cost of wired transmission Large, easily affected by the natural environment, still using microwave communication transmission.
Compared with optical fiber communication, the characteristics of Bell Labs microwave communication in New York itself have irreplaceable advantages, and it is poor in some natural disaster resistance and flexibility, but optical fiber greatly guarantees the advantages of high-speed transmission and high-frequency width, but in Significant resources are required in terms of investment cost and duration.
Optical fiber communication, microwave communication and satellite communication are the three major communication transmission systems we currently recognize, but in fact, satellite communication also belongs to microwave communication. In electromagnetic wave communication, it can be generally divided into broadcast mode and point-to-point mode, microwave communication, and point-to-point transmission. This method is also determined by the characteristics of microwave itself. Due to the high frequency and short wavelength, it is destined to have poor diffraction ability and weak penetration. , in the surface transmission, the attenuation is large and the transmission distance is short. Many people think that electromagnetic waves can be transmitted over long distances using the reflection of the ionosphere in the sky, but the microwave itself is too frequent, and the ionosphere cannot effectively reflect (can only penetrate), so relay signal relay and limited line-of-sight transmission are generally used, that is, the naked eye. Visible point-to-point transmission.
