I opened a shop less than 200 meters next to the high school. A few days ago, the college entrance examination blocked the signal, and all mobile users were completely unable to scan the code to pay. Due to the blocking relationship, the traffic could not be used. However, Unicom users were not affected in any way. I also ran a speed test, and the network speed was so fast!
Asked at 15:20 pm on November 11
Yojkjh
Answer
It may be because the base stations of China Unicom around your store are relatively close, so the signal is relatively strong, and there is basically no interference in places far away from the wifi jammer, or it may be the shielding power of the wifi signal jammer used by the school for the Unicom signal. Relatively small, resulting in poor shielding effect.
Answered at 14:26 pm on November 11
Jammer-mart
