Signal jammers can be classified in various ways: one is by the type of signal being shielded, the other is by high-power size, and the other is by appearance.
The blocked signals can be divided into signal frequency bands such as GPS.Wi-Fi (2.4G.5.8G), UHF.VHF.315.433.2G.3G.4G.5G. These frequency bands can be combined according to different needs and can form different types of signal jammers for phone.
Signal jammers are mainly used in campus examination rooms. cell. Places such as detention centers where mobile phones are strictly prohibited. So how should you choose the most suitable signal jammer according to your own needs? Below, I from Fuzhou Rongke Security will tell you what you need to pay special attention to when choosing a signal jammer.
1. Venue used: If it is used in an indoor venue, it is generally suitable for the examination room. The signal jammers in conference halls, offices and other areas are small and high-power, and the gas filling station must use explosion-proof and heat-resistant ones; if it is a large outdoor area, a high-power signal jammer must be used. Appropriate spacing can be achieved. In particular, there is a certain demand for crossing the wall.
2. Right requirements, let’s start with the signal classification. Before purchasing, you need to know what signals you want to block. The normally blocked signals are (2345G and 2.4G), but at present, you can Signal jammers that block 5g signals have long been a popular purchase.
1. Venue used: If it is used in an indoor venue, it is generally suitable for the examination room. The signal jammers in conference halls, offices and other areas have the highest power, and the gas filling station must use explosion-proof and heat-resistant ones; if it is a large outdoor area, a high-power signal jammer must be used. Keep appropriate spacing. In particular, there is a certain demand for crossing the wall.
4. Power supply system mode: Rechargeable battery power supply system, the handheld device has a built-in lithium battery, which is convenient to carry. After the power is used up, just use the charging head battery to charge; 220V power supply system, the desktop computer used in the examination room is 220V working voltage power supply system, vehicle-mounted signal blocker generally uses the 12V working voltage power supply system in the car.
5. Compared with the shield, the appearance is not very important, it is just the structural difference of the settings. From the appearance, the shield can be divided into external antenna and built-in antenna. The external antenna is because the antenna is external and flexes outward, so the effect is smoother. For machines with external antennas, in addition to the antenna adapter, they are also external, so those with built-in antennas occupy a larger space; generally speaking, the antenna and power supply of the signal blocker for sale with built-in antennas are both installed. Inside the casing, it occupies a smaller area and is more convenient to use.