welcome to HISEA
source:Industry News release time:2020-12-07 Article author:sznbone Popular:Prison Jamming system
Looking at the news recently, you can find that a device called test signal jammer is frequently appearing in major schools, and you can see them in every test room. What are they? In fact, this is a kind of isolation. The shielding equipment for communication signals is the best way to prepare for the exam and to counter and prevent candidates from cheating with electronic devices in the exam room. This is to allow candidates to take the exam in a fair and authoritative examination room that maintains the normal order of the examination room, so that the candidates' scores are more true and correct.
However, because the shielding effect of the test signal jammer is limited, it is generally within a radius of 0 to 50 meters, and the area is about 250 square meters. Within this range, it can be guaranteed to isolate the communication signal and WIFI signal, but when installing the test signal jammer in the examination room, pay attention to avoid covering it with metal objects, because this will seriously affect its shielding effect, and because the shielding effect will be greatly reduced as the wall penetrates. Fortunately, when using it, it is ensured that it is in an open area, so as to ensure that the effect of the shield is maximized. If you feel that the lower power is not suitable, you can also choose a higher power. In fact, schools have very high requirements for such high-tech equipment and test signal jammers. If you want to choose high-performance equipment, please come to Beijing Shenzhou Mingda to consult the price of signal jammers, which can be provided here. Cost-effective professional equipment, with many years of rich manufacturing experience, quality is guaranteed, welcome to buy and cooperate.
Read recommendations:
Handheld 24 Antennas 5g Cellphone Signal Jammer with Nylon Cover
4 advantages of mobile phone signal jammer
High power drone gun jammer destroy multiple signal frequency bands
5G subscribers in MENA region to reach 290m by 2028: Ericsson
Popular recommended products
4G/5G Signal Jammer (14 bands)
2020-11-10Waterproof Portable 360 Degree Anti UAV Drone Jammer
2020-09-24High Power Handheld Signal Jammer HS-P8J
2020-09-15Portable Handheld RF Signal Jammer, Car Lock Remote Control Blocker, 10W Jam Up To 100m
2022-01-13Portable HS-V8J High-Power DDS Jammer
2020-09-14Related Information
What are the misunderstandings when using signal jammers?
2021-07-09Who needs a handheld Wifi Bluetooth 4G mobile phone signal jammer?
2020-11-11The gap between ordinary mobile phone signal jammer and high-quality shielding
2020-09-25The current status and misunderstandings of the machine signal jammer
2021-04-09Usage of Cell Phone Jammer
2020-10-14Have you remembered all these common problems of mobile phone signal jammers?
2021-04-14What is the difference between signaling-level cell phone signal jammers and ordinary signal jammers
2022-08-18Recording blocker, solve the recording of criminals!
2021-08-26Three types of signal jammers
2021-07-06China home to 4 million 5G base stations
2024-09-26Cell phone jammer blocks any call signals
2021-12-21Use mobile phone titan jammers to prevent eavesdropping
2021-11-18Mobile jammers improve work efficiency
2021-12-22How to use the mobile phone signal jammer? What should I pay attention to?High power man-pack jammer
2021-09-28How to prevent surveillance by GPS blocker
2021-09-15Cell phone jammers maintain a fair environment
2021-10-29Home WiFi Jammer-Let children prepare for exams
2020-11-13Malaysia’s 5G Network Will Exceed 40% Coverage by End-2022 And on Track to Meet 80% by 2024
2023-02-10What is a cell phone scrambler?
2021-08-25High-power multi-purpose signal jammers bring better conditions for people
2020-11-06Interfering 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 module
2023-07-211.2G 50W Jammer 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
