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  • Why does the desk top jammer in the examination room choose the built-in antenna?
    Why does the desk top jammer in the examination room choose the built-in antenna?
    • 2022-07-13

    With the continuous development of communication technology, the mobile network has also been upgraded several times, from the initial 2G mobile phone network to the current 3G, 4G to 5g mobile phone signal network. At the same time, the desktop jammer has also undergone continuous upgrading. Deskto...

  • What preparations should be made for the establishment of mobile phone jammer system in the prison area
    What preparations should be made for the establishment of mobile phone jammer system in the prison area
    • 2022-07-13

    Clarify the scope of the interference area required by the mobile phone jammer, whether it is interference in the key areas (or buildings) in the prison area or all interference in the whole enclosure yard; Clarify the expected planning and effect of the jamming project, including the planning funds...

  • Which places can use network jammers
    Which places can use network jammers
    • 2022-07-13

    As a new technology, intelligent machine is very popular in today's society. How to restrict the convenience? Network jammers will be used in key vocational qualification examinations across the country. Undoubtedly, mobile phones have already undergone earth shaking changes in our daily life. Mobil...

  • What are the factors that affect the stability effect of intelligent jammer?
    What are the factors that affect the stability effect of intelligent jammer?
    • 2022-07-06

    The reasons for the different signals of intelligent jammer caused by external and environmental factors: 1. Due to the different power and channel number of base stations such as China Mobile, China Unicom and China Netcom, the distance between the base station and the interference site is differen...

  • Common signal jammer problems
    Common signal jammer problems
    • 2022-07-06

    1. What is a signal jammer? Signal jammer is a device that interferes with the communication between mobile phone signal and base station when receiving signal with mobile phone. They have been developed for military and law enforcement departments to deal with threats such as explosions and violenc...

  • How to give full play to the role of electronic jammer
    How to give full play to the role of electronic jammer
    • 2022-07-06

    When the technologically advanced mobile phone cheating methods are widely used, it will increase the difficulty and pressure to maintain the discipline and order of the examination room, which requires giving full play to the role and performance advantages of electronic jammers, so as to ensure th...

  • How long is the service life of the Signal Jammer?
    How long is the service life of the Signal Jammer?
    • 2022-06-30

    At present, many schools have installed the signal jammer. However, after installing the jammer, their biggest concern is whether the jammer will be used too soon. The Signal Jammer will generate heat when it is used, which is normal. Electronic products need to have a certain stability in heat diss...

  • How to calculate the interference range of mobile phone jammer
    How to calculate the interference range of mobile phone jammer
    • 2022-06-30

    Many customers have called to say that I need a mobile phone jammer that can interfere with a radius of 50 meters, a distance of 500 meters and a radius of one kilometer, and that the three networks of China Mobile, China Unicom and Telecom should interfere. Are there any problems with the customer'...

  • The frequency jammer used in the examination room will not affect the normal performance of candidates
    The frequency jammer used in the examination room will not affect the normal performance of candidates
    • 2022-06-30

    In order to safeguard the interests of the vast majority of candidates and improve the fairness of the examination, necessary restrictive measures must be taken against the cheating of a few people. The examination management department has adopted the practice of installing frequency jammers. Durin...

  • Is it reliable that radio frequency jammers are harmful to human body?
    Is it reliable that radio frequency jammers are harmful to human body?
    • 2022-06-24

    Continuing from last year, this year, RF jammers with signal jamming function were installed in many examination halls by local examination management organizations as a technical means to prevent college entrance examination candidates from cheating. However, an article titled "the founder of radio...

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