welcome to HISEA
call us: +86-17359596335
source:Industry News release time:2021-09-13 Article author:sznbone Popular:Prison Jamming system
By the annual exam season, all parties have begun to prepare for the exam. The invigilator has various tricks to prevent high-tech cheating. Among them, the special shielding device for the exam room is still an anti-jamming device. However, Foshan Linchuang Technology, as a well-known manufacturer of signal jammers, reminds that there are many types of jammers, and users should clarify their needs before purchasing to avoid poor shielding effects and accidents in the examination room, and pay attention to the method of use. The correctness.
First of all, I want to clarify the place of use. Most schools use test room-type mobile phone shielding devices that are suitable for long-term work and are durable. Secondly, how big is the shielded area? For example, a room of 100 square meters or a venue of thousands of square meters. If the area is large, the power must be larger, and if the area is small, you must consider using adjustable shielding power. Then there is which frequency bands need to be shielded. Are all China Mobile, China Unicom, China Telecom and CDMA shielded? Or only some frequency bands need to be shielded.
We remind everyone at this time that the best results can be achieved when the right shielding device is purchased, and it depends on the method used. The most important ones are the following:
1. Indoor-type shielding device is recommended to be placed at a height of about 180cm-220cm from the ground, and the angle is better to be inclined forward.
2. Whether there are obstructions (such as walls, metal products, human bodies, etc.) between the shield and wireless communication equipment (mobile phones, etc.). The interference signal emitted by the jammer will be attenuated to different degrees after passing through the obstruction, please try to avoid it.
3. The weaker the wireless communication signal strength in the use environment, the stronger the theoretical shielding effect of the shielding device.
4. The farther the jammer application environment is from the base station, the stronger the theoretical shielding effect of the jammer.
The above is the information on the purchase guide and usage of the signal jammer. I hope to help you.
Read recommendations:
Professional all-round 360-degree recording jammer air purifier type anti-recording equipment
HS-T100HJ Mobile Phone WiFi Cellular 5G Security Prevention Signal Jammer
Popular recommended products
Portable HS-V8J High-Power DDS Jammer
2020-09-144G/5G Signal Jammer (14 bands)
2020-11-10High Power Handheld Signal Jammer HS-P8J
2020-09-15Portable Handheld RF Signal Jammer, Car Lock Remote Control Blocker, 10W Jam Up To 100m
2022-01-13Waterproof Portable 360 Degree Anti UAV Drone Jammer
2020-09-24Related Information
"The most stringent in history" college entrance examination:
2020-11-27Jammers
2020-10-24Mobile phone shielding device avoids the disadvantages of using mobile phone.
2020-11-19How to realize the technical principle of anti-recording equipment!Meeting room jammer
2021-09-09Recommended recording jammer with good interference effect
2021-06-02Wifi jammer affecting factors on the shielding radius
2021-06-17China's 5G mobile subscribers exceed 1 billion
2024-12-24Recording blocker to prevent illegal recording artifacts!
2021-10-08Why install a signal shield?
2020-11-19JT, Ericsson roll out new 5G network
2025-05-306G will see convergence of terrestrial and satellite communication networks: DoT Secy Read more at:
2022-05-06GSM jammers installed in examination room to prevent cheating
2021-07-15The gap between ordinary mobile phone signal jammer and high-quality shielding
2020-09-25Cell Phone Jammer
2020-10-10Detailed use of multifunctional wireless signal jammer
2020-11-26What is frequency band?
2021-07-28The evolutionary history of communication cheating tools and signal jammers
2020-12-01EU still have work to do to beef-up 5G security ahead of European rollout
2022-02-23Anti-cheating artifact Effectively shield various test signals to ensure fairness in the test
2021-08-06What's Cell Phone Jammer
2022-09-21Interfering products
V500 Rack-mounted Spectrum Analyzer
2026-03-16SSA3000X 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 module
2023-07-211.2G 50W Jammer Module
2023-07-211.2G 30W 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
