"It's not surprising." Communication experts explained that 5g is a new network system launched in recent years, which uses some new radio bands. Many old full band signal jammers do not support jamming 5g signals.
According to the division of 5g frequency band, China Telecom and China Unicom mainly use 100MHz spectrum resources in 3.5GHz frequency band, while China Mobile mainly uses 160MHz spectrum resources in 2.6GHz frequency band and 100MHz spectrum resources in 4.9ghz frequency band.
The working principle of the full band signal jammer is to use the higher power and release stronger signals of the full band signal jammer to suppress the normal interference signals in the frequency band of the corresponding mobile network, so as to achieve the purpose of interference.
"The first possibility is that the 5g signal may not be within the working range of the full band Signal Jammer used on site; the second possibility is that the 5g signal itself has strong anti-interference ability, and the full band Signal Jammer failed to successfully suppress interference." Experts say.
At present, with the continuous upgrading of communication technology, 5g signal system is also different from the original 4G system. It is possible that the old model of full band Signal Jammer can not completely interfere with 5g signal.
To fill this loophole is not difficult, confirm in advance what types of signals are near the examination room, and then deploy a new type of full band signal jammer. [Shengma] full band signal jammer, upgraded to 5g in the original technology, can shield 2G / 3G / 4G / 5G / WiFi / Bluetooth / stealth headset / interphone / wireless data transmission and other signals. The college entrance examination site in Shilin County, Yunnan Province adopts the full frequency band signal jammer sma-818q produced by [Shengma], which completely achieves full standard interference without leaving loopholes.
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