It is a key device that has been frequently used in major examination rooms recently. I believe many people should know the true function of this device. It is a key device that has been vigorously promoted in school examinations and can effectively eliminate and prevent candidates from cheating. , that is today’s protagonist: cell phone signal jammer. There are now less than 100 days...

1. What is a GPS jammer? The GPS signal jamming system is designed to suppress the signals of the global satellite navigation GPS system in the 1500-1600MHz range. Jammers make it impossible for GPS satellites to monitor the location of cars and all vehicles via GPS, and gps jammer devices will not interfere with cell phones and other devices. The GPS jammer range can be from 5 to 15...

Instructions for use of 5G high-power cell phone signal blocker system: 1. For the HA-1000H high-power cell phone blocker, first confirm the location of the communication base station, find a high point and fix the output port of the machine downward (to prevent rain), and fix the antenna on the top or sides of the machine with poles. Turn your back or side to the base station and let the...

A mysterious shadow that has been active in many examination rooms recently. I believe that many people still don’t know its true identity. It is a good partner that has been vigorously developed in campus size tests and can effectively prevent fraud - Cell phone signal jammer. Now is the time for the college entrance examination, and many universities are looking for a batch of...

Recently, we have often received inquiries from some customers who want to buy a suitable wireless signal jammer from us. The purpose is also very clear, which is to block surveillance cameras. Usually when we encounter such a demand, we will directly refuse it. . So the question is, can’t the wireless signal jammer we produce block surveillance cameras?Here, as a professional...

Customers in the purchase of cell phone signal jammer equipment, generally as long as no special instructions, the manufacturer's default factory band, is not included in the GPS positioning signal shielding module, but if the customer in the order of shielding equipment, very clearly put forward the requirements: the need to shield all the mobile phone signal lamps at the same time,...

In the procurement of portable cell phone signal jammer, some customers are very enthusiastic to put the shielding equipment into the actual task very quickly, but also sometimes feedback back some information: the shielding signal coverage is a little on the small side. And after replacing the different working environment, feel the shielding distance of the shielding signal, some scenes...

According to the 5G frequency band standard divided by the International Telecommunications Union (ITU), there are three 5G frequency bands, namely the low frequency band of 700MHz~3.8GHz, the middle frequency band of 3.8GHz~24GHz and the high frequency band of 24GHz~100GHz. Among them, my country uses low-frequency and medium-frequency bands, and a few European and American countries use...

With the popularity of smartphones, almost everyone has a mobile phone. Its product communication is very convenient, and it can easily complete a large number of family communication, and even WeChat video chat. But the application of mobile phones is getting more and more serious. Smart phones have functions such as taking pictures, GPS positioning, and GPS navigation. This function is...

There are still three months before the college entrance examination, and many students have already begun to work hard for their own future. At the same time, many schools are stepping up their preparations. In order to provide students with a fair and just environment, they have already begun to prepare for the layout of the examination room in March. Among them, one of the more important...