Can the car signal shielding device install the antenna in the car?

Dojammer 2022-09-20

Some customers purchased a high-power signal shielding device and installed it on the vehicle, but in the process of vehicle modification, in order to achieve the effect of concealed use, it is not allowed to install the antenna outside the vehicle, let alone erect it on the roof, then , Can the car signal shielding device install the antenna in the car?

First of all, from the most favorable point of view, if the main unit of the signal shielding device, the RF connection feeder, and multiple antennas are all installed inside the compartment, then, from the outside of the vehicle, others are completely installed inside the vehicle. What kind of equipment is used, and it is completely unaware of what shielding effect this car has. Concealed installation and the effect is very obvious!

Hidden Antenna WiFi RF Signal Blocker

However, when several antennas of the signal shielding device are all installed in the car, it will bring the following negative effects:

1. The signal, coverage and distance transmitted by the signal shielding device through the antenna will be greatly reduced.

This is because the body of the vehicle is mostly made of metal frames, metal frames and plates, which will have very large errors in the transmission of wireless signals. At the same time, the carriage is a relatively closed structure. After the radio frequency signal is transmitted, there will be several reflections inside the carriage. , resulting in that the signal will not be completely transmitted to the boundary and the range, and this part of the signal is lost in vain. At the same time, even if the antenna is erected in the car, its height is definitely not as good as that of the roof. The installation height of the antenna is different, which will also reduce the coverage radius.

2. The antenna of the high-power signal shielding device is installed in the car. Once the machine is turned on, the contractor cannot stay in the car for a long time. This is because the distance to the antenna is too close, and the signal is reflected back and forth in the car. The intensity of electromagnetic radiation will seriously exceed the standard, which will inevitably have adverse effects on human health.

3. If all the host equipment and antennas of the wireless signal shielding device are installed in the car, it will take up too much space in the car, because it is necessary to consider that the antennas of different frequency bands need to maintain a certain distance, then a car The rear seats and trunk of the car will be occupied.

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