After understanding the LoRa signal, you can see that the frequencies used by the LoRa signal are 433, 868, 915MHz, and then we will understand the basic principle of the cell phone jammer. The signal emitted by the phone jammer is a white noise signal in the same frequency band as the mobile phone signal. In the field of use, the signal strength of this white noise is higher than that of the mobile phone signal, so the mobile phone blocker can block the mobile phone on the scene. On the contrary, the mobile phone blocker cannot block the mobile phone signal on the use site.
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It can be seen that the frequency band of the signal transmitted by the mobile phone jammer does not overlap with the frequency band of the LoRa signal, so it will not cover the frequency band of the LoRa signal, so the signal emitted by the mobile phone jammer will not interfere with the LoRa signal.
Some customers will mention such a question, a 6-story teaching building, each floor is about 1500 square meters, whether 1-2 high-power cell phone jammer can achieve mobile phone signal interference in the entire teaching building. Topsignaljammer Technology Co., Ltd. does not recommend using high-power mobile phone signal jammers to shield a 6-story teaching building. This idea is understandable. After all, the number of jammers used is small and it is easy to install.
Jammer FrequencyPortable Mobile Phone Jammer Block GSM 3G 4G GPS WIFI Signal Why is it not recommended to use a high-power mobile phone signal jammer to interfere with a 6-story teaching building? The reasons are as follows 1. Choose a high-power mobile phone signal jammer to interfere with the entire teaching building. It is recommended to implement it in a building below the 4th floor. If the floor is higher than the 4th floor, the signal from the surrounding base stations will be transmitted to the teaching building, which will reduce a lot of obstructions. , the signal to the upper floor above the 4th floor of the teaching building will be higher than that of the lower floor. This will increase the difficulty of interference, and considering that the interference signal of the high-power mobile phone signal jammer takes into account the upper and lower floors, the installation position is generally not higher than 2 floors, which is about 6-9 meters. High, the installation difficulty increases, and safety is also a problem to be considered.
For teaching buildings below the 2nd and 4th floors, when configuring high-power mobile phone signal jammers, they also need to be installed in the front and back of the teaching building, and the number of configurations should be determined according to the strength of the mobile phone signal on site. Under normal circumstances, at least 2 sets of high-power mobile phone signal jammers are required. The cost of high-power mobile phone signal jammers is far higher than that of low-power mobile phone signal jammers.