Anyone who has taken part in a large-scale examination should have seen signal jammers. Generally speaking, they are placed at the entrance of the examination room, mainly to prevent cheating by using mobile phones during the examination. Provide a fair environment for candidates. However, how much do you know about the shielding range of Signal Jammer? Let's learn about it.

1、 The shielding range of signal jammer is related to its own power. For example, our 818b5 equipment has 2-3W for each channel and about 30W for the whole machine, which can generally meet the needs of customers.

2、 The distance between the site and the base station. If you buy a low-power Signal Jammer and there is a base station within 100 meters, there is basically no shielding effect. Because the signal strength of the base station is too strong, you can choose to buy a medium power machine or a high-power machine at this time.

3、 Surroundings. The main factor of the surrounding environment is whether the place where you install the signal jammer is concrete wall, glass partition or iron. The General Signal Jammer will lose great effect after passing through the wall.

In summary, the shielding range of signal jammer is not determined by a single factor. It is recommended to use signal testing equipment to test the signal strength of your installation environment before purchasing, or contact our technicians to help you find a suitable solution.