welcome to HISEA
source:Industry News release time:2021-08-09 Article author:sznbone Popular:Prison Jamming system
When taking large-scale exams such as the high school entrance examination, college entrance examination, grade four and six, you will see signal jammers in the examination room. It can be seen that signal jammers have become standard equipment in school examination rooms, as long as it is to prevent candidates from using mobile phones to cheat.
We know that today's mobile phones have too many functions, which can be used to watch movies, record recordings, video chats, take pictures, etc. At the same time, it is convenient, and some people use mobile phones to cheat, leak questions, and search for answers on the Internet. This is very bad. In order to prevent this kind of on-site occurrence, the examination room began to use signal jammers to shield the signal of the mobile phone to prevent this kind of cheating.
Why can signal jammers prevent mobile phone cheating?
In the examination room, when using a mobile phone to send a message, it is necessary to use a signal to transmit the message. If the mobile phone has no signal, there is no way to receive and send the message. The signal blocker is a device that can prevent the mobile phone from receiving the signal. Turn on After the signal jammer, the mobile phone will lose contact with the base station, and the signal will be completely lost within the shielding range.
The principle of the signal jammer is that the frequency emitted by the jammer itself interferes with the normal frequency of the mobile phone receiving the base station, making the mobile phone unable to connect to the base station, and thus unable to make calls, receive and send text messages, and surf the Internet normally. In recent years, cheating on mobile phones has occurred in various national examinations, which has seriously affected the fairness and impartiality of examinations. For this reason, the state stipulates that mobile phone signal shielding devices should be equipped during major examinations to create a healthy and fair examination environment for candidates.
Read recommendations:
Portable Handheld RF Signal Jammer, Car Lock Remote Control Blocker, 10W Jam Up To 100m
433MHz 315MHz 868MHz Handheld Car Remote Control Jammer
Convoy 12 bands RCIED Bomb Jammer
The gap between ordinary mobile phone signal shielding device and high quality shielding device
Enrollment exams need test signal jammers to maintain order
The current situation and misunderstandings of prison cell phone jammers
Popular recommended products
4G/5G Signal Jammer (14 bands)
2020-11-10Portable Handheld RF Signal Jammer, Car Lock Remote Control Blocker, 10W Jam Up To 100m
2022-01-13Portable HS-V8J High-Power DDS Jammer
2020-09-14High Power Handheld Signal Jammer HS-P8J
2020-09-15Waterproof Portable 360 Degree Anti UAV Drone Jammer
2020-09-24Related Information
Here is a good high-power GPS LoJack WiFi 3G 4G mobile phone jammer
2020-11-24How to effectively avoid being recorded?
2021-03-25How to prevent being recorded by the phone?
2021-08-19High-power WiFi 4G jammer for fixed places and cars
2020-11-18The use of mobile phone signal jammer in gas station
2020-11-28Latest Galileo satellites join constellation with enhanced, faster fix
2022-09-29Cell phone jammer principle
2020-11-30FCC bumps 2.5 GHz auction to six rounds a day
2022-08-27China to build 10,000 5G-powered factories by 2027
2025-01-02The role of drone jammers
2020-12-15The working principle of wireless signal jammer
2021-09-28What should I pay attention to when installing and using mobile phone signal shielding equipment?Mee
2021-09-13The development of signal jammers
2021-06-11Mobile jammers improve work efficiency
2021-12-22The 5G and Wi-Fi symbiosis
2023-09-15Mobile phone signal shielding environment test
2020-10-26What are the differences between mobile phone jammers and civilian mobile phone jammers?
2021-09-27China tests 6G tech featuring better connection, high-precision target sensing
2025-05-09The installation of "mobile phone signal jammers" in schools is a responsible performance
2020-12-07How to effectively avoid being recorded?
2021-08-24Interfering products
SSA3000X Plus Series Desktop Style Spectrum Analyzers
2025-04-09HSA-Q1 Handheld RF Spectrum Analyser up to 13.44 GHz
2025-04-09Protek A734 100kHz-4.4GHz Handheld Spectrum Analyser
2025-04-09Low-altitude defense drone portable equipment
2023-11-20Mobile Phone Cellular Signal Booster GSM PCS Network Repeater for Garage Basement Signal Repeat
2023-11-092W Mobile Phone Signal Repeater 1800 2100 2600 MHz Tri-Band 33dBm Network Booster
2023-11-093G Signal Repeater Mobile Phone Signal Booster
2023-11-09Portable Signal Jammer Full Band 21 Channels 2g 3G 4G 5g Mobile Phone Network Lojack Walky Talky Signal Jammer
2023-11-01Professional all-round 360-degree recording jammer air purifier type anti-recording equipment
2023-11-01Anti Spy Remote Control Portable Audio Voice Recording Jammer up to 2m white noise to Privacy Protection
2023-11-01Recording blocker protect your voice information security,air purifier type anti-recording equipment
2023-10-312000m Detection Handheld Drone (UAS) Detection Warning Instrument Detector Dji, Autel and Fpv Drones
2023-10-27Handheld Drone/Uavs Detecter for Detecting Dji/Autel/ Fpv Drones up to 2km
2023-10-25with 2km Drone Controlled Signals WiFi Drone Signal Jammer GSM 900MHz WiFi 2.4GHz 5.8GHz Anti Drone System
2023-10-25Unique Handheld 28 Bands 27 Antennas Wi-Fi6e FM Radio GSM 3G 4G 5g Mobile Phone Jammer
2023-10-23Handheld 24 Antennas 5g Cellphone Signal Jammer with Nylon Cover
2023-10-23Convoy 12 bands RCIED Bomb Jammer
2023-10-23Vehicle Mounted Drone Detection Jamming Integrated Uav Detection, Positioning, and Countermeasures Blocking Units
2023-10-17Portable Drone Detector aeroscope mobile works offline or online can find controller pilot position detection device up to 10km
2023-10-05Vehicle Use-Signal jammer detector for uniform services
2023-09-20Anti-Theft Jammer Detector for Local Command Center
2023-09-20Portable Cellphone Jamming Detector
2023-09-19M8000 RF Signal Detector Anti Spy Tracker Wifi Camera GSM Audio Bug Sweeper
2023-09-188km Ku Band Microwave Alarm Security System Ground Surveillance Monitor/Detector/Sensor/Radar
2023-07-31Full Band Drone Jamming and Navigation Spoofing
2023-07-318kms 300MHz~6GHz RF Uav All Frequency Detection Direction Finding Equipment
2023-07-311.2G 100W anti drone module
2023-07-211.2G 50W anti drone module
2023-07-211.2G 30W anti drone module
2023-07-211.2G 10W/20W anti drone module
2023-07-21Start a conversation to know more about what we have for you…
Get in touchEnter your email for exclusive offers and information on new upcoming products.
product
solution
about us
service
news
