Today, Xishen Microvision will share with you an article on wireless bridge transmission distances. The distance of wireless transmission is a power issue or an antenna problem. Let us understand it together!
1. Is it more effective to increase the transmission distance, increase the transmission power, and increase the antenna gain?
Both methods are effective. Which method is more effective needs to be combined with the time environment. Here are some common scenarios.
A—micro-portable, portable, vehicle-mounted mobile wireless transmission equipment, inconvenient to use high-gain transmitting antenna, to increase the transmission distance, can only increase the transmission power, and the first two should be the preferred frequency modulation method, because of FM transmitter power supply efficiency High, simple circuit structure, easy to do smaller. Vehicle transmitters do not need to consider the modulation method, because the weight and power efficiency are not problems, as long as the transmitting antenna is not too large.
B—Secure remote transmission and reception points suitable for high-gain antennas. In general, the effect of the earth's curved surface should be taken into consideration when the transmission distance is 15 kilometers or more. When the height of the antenna needs to be set at 560 kilometers or more, it needs to be several tens of meters. It is often necessary to build an iron tower or use tall buildings, or even to use a mountain. The relatively bulky high-gain antenna has no difficulty, and naturally it does not use much power.
C—Transmission in the terrain complex environment, the distribution of the signal field strength is also very complicated. At this time, it is meaningless to use a high-gain antenna, and the transmission distance can only be increased by increasing the transmission power.
2. Why does it not work well to transmit high-gain antennas in complex environments?
In fact, transmitting high-gain antennas in complex environments is not absolutely bad. The reason why the gain of a high-gain antenna is high is because it can deliver the energy of a wider range of space to the feed point as much as possible in an ideal environment. In a complex environment, the relative relationship of the spatial energy in various places will also become irregular, and the energy that is transmitted to the feeding points in various places may be large, may be small, and may be negative.
On the project site, it is easy to verify this.
Â
3. What are the advantages of wireless networks transmitting FM, higher frequencies, and lower frequencies in complex environments?
It is known that the same distance is transmitted wirelessly, and multiple transmitters and receivers are used in the same use environment. Tinson Microvision monitors use signal channels of the receiving end to be separated and can be set to one hop per 20/40 band, which is a guarantee of transmission stability. There is no mutual interference source, usually most of the current transmission equipment we recommend using 5.8G equipment, because higher frequency transmission is more stable, the number of channels is relatively low, such as 2.4G wireless equipment, we It is recommended that no more than 4 units can be used in the same receiving environment. Nowadays, many residential areas are covered with 2.4G wireless network signals. Outdoor transmission of 5.8G equipment is still more advantageous.
Smt Double Splice Tape on both sides of the product using the positioning point, no other auxiliary tools. In addition, the SMT Single Splice Tape is the SMD Carrier Tape Splice, which is mainly used for plastics. With the SMT Splice Tool and SMT Splice Clip , it is possible to perfect the splice of components. Pass feeder.
Splice Tape picking advantage
1, no auxiliary tools,
2, to improve work efficiency,
3, the full use of the remaining components,
4, reduce the machine wear.
we KDW is a professional production of SMT Splice Tape , ESD Splice Tape, SMT Special Splice Tape, SMT Double Splice Tape, production plant, engaged in SMT accessories industry for more than 10 years, a wealth of experience and technology to ensure that, TAPE all use Import high-viscosity tape material, can guarantee the stability of the material and pass rate.
We KDW can be customized according to customer requirements processing production.
