How to resist signal jamming?

The principle of the wifi jammer is to interfere with the frequency sent by the mobile phone receiving base station and wireless router through the frequency emitted by itself so that they cannot connect normally, so as to achieve the purpose of shielding them. This cannot be avoided by cracking the number and band, because no matter which number or band you use, it is within its shielding range. There is also Bluetooth software that is not acceptable because its frequency will also be blocked by the wifi signal jammer. The only way is to install a mobile phone signal amplifier near the place where the jammer is used to counteract it. When the mobile phone signal becomes stronger, it will be difficult for the wifi jammer device to block it.