Is the mobile phone signal jammer a good built-in shielding effect or an external one? How do we choose? First of all, the same 6-channel Power transmission alone is undoubtedly sure that the external transmission is better than the built-in effect. External A Florida Man Uses A Cell Phone Jammer First, the antenna is separated from the RF components and will not cause mutual interference. The antennas are all configured according to frequency. The advantages of high gain, good transmission effect, etc. The disadvantages are troublesome installation and easy breakage of the external antenna... The built-in mobile phone signal jammer integrates the switching Power supply, the Power motherboard, and the antenna into one space. cell phone jammer If it cannot be optimized reasonably, it will cause the frequency to cross each other, and the Power supply will interfere with the signal source, so the shielding effect will be very poor, so buy the first choice of brands, regular manufacturers, qualified, and reject three-no products. Professional recording equipment is no longer limited to portable recording
Decision A Florida Man Uses A Cell Phone Jammer Factors of shielding range size: the distance between the place of use and the base station and how many meters can be blocked by obstacles. The mobile jammer is not only related to its own transmission Power , but also related to the distance of the base station in the use environment (base station Not limited to large-scale transmission towers built on the ground, there are also signal amplification antennas on the roofs and signal amplification distribution in some buildings). Another important factor is obstacles. If it is made of metal, it will be directly blocked; if It is a reinforced concrete solid wall that will attenuate at least 10 times after penetration. Therefore, when installing a mobile phone signal jammer, you must first understand your surrounding environment and the area used, and then decide which type of mobile phone signal jammer to buy.
