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Cell Phone Signal Jammer Locations Online

Does The Signal Jammer In Exam Halls Really Work?

Examination rooms are relatively formal occasions. For the fairness and justice of the examination, it is very important to prevent candidates from cheating in the examination room. Therefore, mobile phone signal jammers are favored by various school examination rooms. So how to choose one that can achieve shielding effect.

Many schools, colleges and universities buy mobile phone signal jammers online. Before purchasing mobile phone signal jammers, they still have to choose which brand of signal jammers to buy, and what price electronic signal jammers are more suitable for use in the examination room. Now there are many models and brands of mobile phone signal jammers in the examination room, and the quality of 5G mobile phone signal jammers is also uneven. The quality is good or bad, so how to choose a brand signal jammer suitable for the examination room! As a manufacturer specializing in the production and sales of cell phone signal jammers, we will give you a brief introduction: the current communication frequency range mainly includes effective shielding of CDMA, GSM, DCS, TD-SCDMA (3G1), WCDMA (3G2), 4G/E, 4G/ D5G, 2.4G and 5.8GWIFI, walkie-talkie VHF, UHF and other signal frequency bands.


Not all of these communication frequency bands need to be shielded, because the high power signal jammer has more shielded frequency bands and the price is more expensive. Each examination room can freely choose the shielded frequency range in combination with the communication environment of the examination room to achieve a better effect of the jammer, and also reduce the cost of procurement. What needs to be paid more attention to when purchasing signal jammers is to confirm whether the mobile phone signal jammer manufacturer’s products have: national electronic product inspection report, ISO9001 quality management system certification, occupational health management system certification, environmental management system certification and other qualifications. So at present, the mobile phone signal shielding instrument in the examination room usually has three different configurations: the standard version shields 2G, 3G, 4G, 5G, and wifi2.4G signal frequency bands. The professional version shields 2G, 3G, 4G, 5G, wifi2.4G and 5.8GWIFI signal frequency bands. The full-frequency version shields 3G, 4G, 5G, wifi2.4G, wifi5.8G and walkie-talkie VHF, UHF signal frequency bands.


The mobile phone jammer can shield all types of networks of all operators, including GSM800, GSM1800, CDMA2000, TD-SCDMA, WCDMA, TD-LTE, FDD-LTE, and the new generation of cellphone jammers also includes the current 5G. The frequency bands allocated by communication operators are different, so the current signal jammers are all used for the frequency bands of major operators.

8 Antennas The Latest Portable-jammer-1
16-Band Handheld 5G Cell Phone Jammer GPS Wi-Fi LOJACK Blocker

When the cell phone signal jammer is turned on, the signal field of the signal jammer device is stronger than the signal field of the base station. At this time, the registration information of the candidate’s mobile phone cannot be sent to the base station, thereby cutting off the communication between the mobile phone and the base station, and protecting the fairness of the test taker and justice, which is conducive to maintaining a good social order. Therefore, mobile phone jammers are allowed to be produced in various countries and used in places that need to shield mobile phone signals. In addition to schools and examination rooms that are using signal jammers on a large scale, there are also similar personal families, company security departments, prisons, and countries and public institutions. Sensitive departments of security are using our signal jammers.

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