Hello, I am buying a signal jammer due to work needs, what do I need to know about the jammer?
Hello everyone! I am going to buy a wifi signal jammer for our unit. I would like to know what factors I need to pay attention to and which type to choose?
According to the shielding frequency band: Before purchasing, you need to know which signals you want to shield. Ordinary mobile phone signals (234G) can be selectively shielded. If you only shield 23G or only 34G, this can be adjusted before leaving the factory. There are 2.4GWIFI, 5.8GWIFI, VHF, UHF and other frequency bands.
Applicable places: Regarding the use of shielding, if it is used in an indoor place, it is generally one type of shielding device suitable for spaces such as examination rooms, conference rooms, offices, etc. Gas stations need to use explosion-proof and high-temperature resistant; Use a medium-power signal blocker to achieve the appropriate distance.
Appearance: The shield can be divided into external antennas and built-in antennas on the appearance. Generally speaking, the external antennas extend outward due to the external antennas, so the space occupied by the external antennas is larger than that of the built-in antennas; Because of the antenna extending outward, the effect of the external antenna is stable.
Power size: jammers can generally be divided into low-power, medium-power, and high-power. The power is between 3W and 100W. Generally, it is not recommended to use high-power signal jammers, which will seriously interfere with base station signal transmission and have a certain degree of damage to the human body. radiation.
Shielding range: The shielding range is directly proportional to the power. Generally, the test room uses a low-power signal isolator, which is sufficient to install one in a classroom, and the shielding range is approximately 200 square meters; while the high-power isolator, the shielding distance It can reach 300-400 meters, depending on the local field strength.
Volume: Generally speaking, the smaller one is hand-held and portable, which is relatively small and easy to carry; the low-power desktop is generally not very large, similar to a small laptop; the high-power is relatively small. The bulky, tow box-like volume is very large.
Power supply: The built-in lithium battery is used in the hand-held, and the power adapter can be used to charge it after the power is used up; the desktop examination room uses a 220V voltage power supply, and the vehicle-mounted power supply is generally 12-36V voltage power supply.