radio can be protected by cell phone jammers

Perfectjammer 2021-04-01

Using multi-band and multi-band mobile phones to test the protection effect of mobile phone jammers in the field is the most convenient, most convenient and most feasible test method. Compared with the limitations of the mobile phone test software and the need for conversion after using professional instrument test software, this method makes it easier for users to understand. The method is as follows: prepare multiple mobile frequency bands, including: one mobile, China Unicom, PHS, 3G (the best of the three 3G standards: Mobile TD-SCDMA, CDMA2000 Unicom, Telecom WCDMA), and then turn on the mobile cell phone jammer, Each portable phone should be installed close to the position indicated on the phone screen, and the mobile phone jammer that has been tested far away can effectively protect the radio. It is recommended to test multiple shielding directions and shielding distances at the same time.

Check if you need to shield the phone: you can’t just check the unit number of the signal on the phone, because sometimes the signal on the phone number is wrong, but it must be an intermittent line phone, which can be tested for free or fixed phone, if it’s disconnected If connected, it is determined that the local fixed telephone number remains within the shielding range. If the plug is pulled out, it indicates that the protective area has been exceeded.
Check whether a certain point is within the protection range, and keep the phone in that position for more than half a minute to confirm whether the phone is blocked.

If the uncovered area on the phone is pulled to protect the area, after a considerable distance in the armored area of the phone, usually it can only be completely shielded. This is because once the phone is pulled, the phone itself has anti-interference function , This anti-interference function will enable the mobile phone to adjust the transmit power by itself to ensure a normal call. Therefore, it is generally not recommended to dynamically detect the call status, but static testing must be performed at each point. After testing all frequency bands, the shortest distance of the shielding radius of a given frequency band is selected as the effective shielding radius of the mobile phone jammer in the area. It can be used to estimate the location when designing large units.

Wide coverage of mobile phone jammers with omnidirectional antennas GPS jammers can effectively eliminate satellite signals

Hotel Blocking Cell Phone Service Protects Cell Phone Information Ad Block For Cell Phones Chrome Blocks Cell Phone Signals

Only 10% of the jammers in the prison work properly Mobile jammer protects Xiaomi browser

The update iteration of the jammer is very fast Sprint Blocking Numbers On Cell Phone Used In Secondary Schools

Blocking Foreign Calls From Cell Phone Prevents Phone Spoofing Cheap Cell Phone Block Game Will Block The Camera

How To Block International Text Message On Cell Phone At Perfectjammer Store Signal-jamming devices bring people closer together Prevent Bluetooth can use cell phone signal jammer Cell phone jammers protect the health of people around you Can cell phone jammers be used in public? Cell phone jammer protects business secrets Cell phone jammers used during the exam Is WiFi jammer useful for 4g signals? wifi jammer cuts off the wireless network wifi jammer protects children's health Mobile phone jammer shields wireless signals wifi jammers can also prevent cheating