Precautions for vehicle borne satellite antenna application

The vehicle borne satellite antenna system includes antenna, installation position, mounting and fixing method, feed and cable quality, interface, waterproof, grounding, etc. A good vehicle borne satellite antenna system is the core part of an excellent vehicle-mount radio.

There are three good conditions for the communication signal of the vehicle borne satellite antenna. There must be a good platform, a good antenna, and a good position. The good location of the good location is important for radio activity. But the installation on the car is different, because most of the vehicle’s use time is on the move, so the requirements for the geographical location seems to be unlikely. Therefore, it is necessary to make full use of the space on the vehicle to meet the second condition is to set a good position for the trifold transportable antenna.

The following precautions for installing and using the car antenna are as follows:

Do not use a counterfeit antenna whose quality is not guaranteed, and ensure that the antenna itself has a VSWR of 1.5 or less. And to ensure impedance, reactance matching; in addition to technical indicators can guarantee, stable quality is critical, once there is a poor quality of the antenna, the poor contact may lead to burning.
Before using, check the parameters of the antenna with the standing wave meter and antenna analyzer to ensure that the parameters are normal.
3. The antenna fee and cable system is also very important, try to use the “-5” or so feeder, most of the car damage is due to poor interface problems in the feeder.
The antenna can’t be inverted. After inverting, the standing wave will be very large and damage the machine.
The antenna should not be used indoors, and it also causes high standing waves. Also harmful to the human body.
Try not to always disassemble the antenna, it is easy to cause poor contact in the long-term, resulting in high standing wave, affecting the life of the machine.
Pay attention to the joints can not enter the water in rainy days.Also pay attention to the inspection of the joints in case of loose condition.
Check the feeder end of the car frequently to ensure there is no damage. If damaged, it is recommended to replace it, because it will also cause radio waves to leak and form standing waves, which will harm the human body.
The relay on the platform should be launched with low power as much as possible, which will also increase the service life of the platform. Also good for your health.
Do not deviate from the radio transmission module, and transmit at a frequency other than the center frequency of the antenna, because the more the deviation, the larger the standing wave.
The antenna is damaged and the break cannot be launched. Some invisible, such as the resistance of the antenna root used as a matching can not be burned, otherwise the antenna will not match, it is easy to form a high standing wave.
The machine generates high heat when it is continuously connected, which can reduce machine launch efficiency. Therefore, it is necessary to check the working condition of the fan.It is necessary to modify the fan to cool for some antenna without fan while surprisingly hot.