All customers who have purchased mobile phone jammers are very concerned about the actual shielding effect of the shielding device when they receive the product and conduct a power-on test. Different customers must have differences in the test environment, the method of testing and the testing methods. There are also differences in the mobile phones used, so there will be large differences in the test results returned. Among them, the placement or installation position of the shielding equipment is also a key factor affecting the shielding effect. Then the question arises, if the mobile phone jammer is placed directly on the ground, how effective is it?

Usually, when the manufacturer of mobile phone jammers sells the shielding equipment, there will be a detailed installation and use instruction in the package box of the goods. Let us take the most common low-power mobile phone jammers used in indoor environments as an example. There should be special installation instructions in the manual. The first choice is wall-mounted installation. It is recommended that the user keep the installation height of the shielding device between 1.8 meters and 2.5 meters, because this height is just at a position that is not easily accessible to human hands, which can prevent future use. During the process, someone will maliciously damage the shielding device or artificially cut off the power or shut down. At the same time, this installation height also exceeds the height of almost all furniture, tables, chairs or other furnishings in the room, so that the shielding signal of the mobile phone signal jammer can be transmitted unimpeded, and the shielding signal can be covered to every room in the room to the greatest extent. corner.

If it is inconvenient to use the wall-mounted installation method, but directly place the mobile phone signal shielding device on the table, this can be regarded as a compromise method, which is suitable for short-term and temporary work scenarios. Since the height of the conventional desktop is about 0.8 meters, if the mobile phone jammer is placed directly on the desktop, the shielding signal will be more or less affected by some furniture or obstacles with a height of more than 1 meter during the transmission to the surroundings. Influenced by objects, this will actually reduce the final shielding effect.

Finally, analyze what will happen if the mobile phone jammer is placed directly on the ground: unless the room is completely empty, the tables, chairs or furniture in the room will become obstacles in the process of shielding signal transmission. More or less will attenuate the shielding signal, and this attenuation will be superimposed as the number of obstacles increases. This will seriously affect the shielding distance of the mobile phone jammer. It is the most undesirable way to use the shielding device on the ground for testing and use.