How far can a low-power 5G mobile phone jammer be shielded when installed in a car?

Customers often ask for the 5G cell phone jammer to be installed on the vehicle, and the vehicle can be used as a carrier to quickly transfer and change the use site. However, since the budget given by the customer is very limited, it is not enough to purchase high-power shielding equipment, so he wants to choose a low-power 5G mobile phone jammer to install in the car. So, how much range can be shielded after adopting this approach?

First of all, what we need to know is what the customer needs to achieve: Is the use of a car 5G mobile phone jammer to block the signal in the car or the signal outside the vehicle?

Some customers have a very clear purpose, which is to use 5G mobile phone jammers in the car. The required shielding range is limited to the inside of the vehicle. In this case, it is relatively easy to implement because the metal outer frame structure of the vehicle has A certain degree of isolation. If a low-power 5G mobile phone jammer is used, the power supply interface of the cigarette lighter can be directly used as the power supply source of the 5G mobile phone jammer. A low-power shielding device can usually completely block all the signals in the car. Cell phone signals in the area are completely blocked.

Another purpose of use: using the vehicle-mounted 5G mobile phone jammer is mainly for signals outside the vehicle, and even wants to achieve shielding of mobile phone signals within a range of more than 100 meters outside the vehicle. With this usage requirement, it is obviously unrealistic to expect a low-power 5G mobile phone jammer. After all, low-power shielding equipment has limited transmit power, and the transmit power of each frequency band is only 2-3W. The signal strength of mobile phones outside the vehicle will generally increase by at least 10dB compared to that inside the vehicle.

In most outdoor environments, if a low-power mobile phone jammer is installed outside the vehicle, its effective shielding range is expected to be only 2-5 meters. In fact, the shielding effect is only within a short distance around the car body.

If you expect to use a vehicle-mounted 5G mobile phone jammer to achieve a large coverage area, you must use high-power shielding equipment. Once a high-power 5G mobile phone jammer is selected, the increase in the weight, volume and power consumption of the equipment will be very huge. , so the modification of the vehicle, the erection of the antenna, the power modification of the vehicle, etc. must also be taken into consideration during installation.