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  • What factors do the shielding range of the smart interferometer depend on?
    • Feb , 17 2023
    What factors do the shielding range of the smart interferometer depend on?

    The shielding range of the smart interferometer is mainly determined by the following factors. 1. The transmission power of each different frequency band of the smart interferometer itself increases theoretically the transmission power and the shielding range. It is also related to the frequency band of the signal frequency transmitted by this band. If the transmission power is the same, the narro...

  • Analysis of advantages and disadvantages of selecting directional antenna for vehicle-mounted frequency jammer
    • Feb , 17 2023
    Analysis of advantages and disadvantages of selecting directional antenna for vehicle-mounted frequency jammer

    In recent years, with the improvement of safety protection standards and the continuous improvement of emergency response plans for various emergencies, the special service departments of the armed police or the public security have begun to equip high-power on-board frequency jammers one after another. In the face of various tasks and application scenarios, the discussion on whether to choose omn...

  • How about the effect of the portable jammer penetrating the wall?
    • Feb , 17 2023
    How about the effect of the portable jammer penetrating the wall?

    Every college entrance examination season, the school designated as the examination site will be busy preparing for the relevant matters of the examination site in advance. In the face of this most important test, many schools designated as test sites are actively preparing to arrange the relevant equipment required by the test site to ensure that the equipment and systems required by the test sit...

  • What factors do the shielding range of the smart interferometer depend on?
    • Feb , 09 2023
    What factors do the shielding range of the smart interferometer depend on?

    The shielding range of the smart interferometer is mainly determined by the following factors. 1. The transmission power of each different frequency band of the smart interferometer itself increases theoretically the transmission power and the shielding range. It is also related to the frequency band of the signal frequency transmitted by this band. If the transmission power is the same, the narro...

  • How well does the portable jammer penetrate the wall?
    • Feb , 09 2023
    How well does the portable jammer penetrate the wall?

    Every college entrance examination season, schools designated as test sites are busy preparing for the test site in advance. In the face of this most important exam, many schools designated as test sites are actively preparing the relevant equipment needed to arrange the test sites to ensure the required equipment and systems of the test sites to meet the basic needs of the test sites. In order to...

  • What is the status of the mobile phone after the intelligent shield is turned off?
    • Feb , 09 2023
    What is the status of the mobile phone after the intelligent shield is turned off?

    Let's talk about the performance process of the mobile phone that was originally shielded by the signal when the intelligent shielding instrument was turned off or cut off after it was turned on for a period of time?  Through observation, it can be found that at the moment after the mobile phone intelligent shield is turned off, the mobile phone actually has no response in a short time. It ca...

  • Disadvantages and advantages of UAV detection countermeasure
    • Jan , 30 2023
    Disadvantages and advantages of UAV detection countermeasure

    The main features of an unmanned aerial vehicle are low speed, slow speed and small size, commonly known as "low speed and small". Moreover, UAVs can fly at any time, quickly recover, and avoid obstacles between buildings at low altitudes. Therefore, detection and defense of UAVs has been a global problem at present: due to its "low-speed" characteristics, conventional radar detection, optical det...

  • What happens to the mobile phone signal when the Smart Shield is turned on?
    • Jan , 30 2023
    What happens to the mobile phone signal when the Smart Shield is turned on?

    Smart shielding is a magical thing. After using it, there will be a very strange change when it is installed indoors. But no one could see the change. So many people wonder how a small thing can have so much energy, and even some people will try to see if a small shield can really be completely shielded. So, what happens to your mobile phone when you use a signal shield? In the room where the smar...

  • How useful is the car frequency interferometer?
    • Jan , 30 2023
    How useful is the car frequency interferometer?

    National Civil Service Examination, Graduate Examination, as test points near the school will become a signal restricted zone. How can an in-car frequency interferometer be so powerful in an examination room? Now reveal its secrets for you. Do you know how your mobile phone receives signals? The principle is that when the frequency-sweeping signal is received in the message signal by the mobile ph...

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