welcome to HISEA
source:Industry News release time:2021-05-10 Article author:sznbone Popular:Prison Jamming system
There are many types and models of signal jammers. Before you buy, you should clarify your needs.
First of all, let us briefly understand the basic points that should be understood in the purchase of shielding devices.
Basic principles of shielding
The wireless signal jammer realizes the interference and shielding of the wireless communication signal by transmitting the same frequency interference signal. The transmit power of the jammer directly affects the strength of the interference signal, thereby indirectly affecting the shielding effect of the signal jammer. There is a positive correlation between these three. In other words, the stronger the transmission power, the stronger the interference signal, and the better the theoretical shielding effect in the same environment.
What factors affect the shielding effect?
In the actual use environment, the interference signal emitted by the wireless signal jammer is affected by various factors, the most important of which are as follows:
1. Place the shielding device.
2. Indoor-type shielding device is recommended to be placed at a height of about 180cm-220cm above the ground, and the angle is better to be inclined forward.
3. Whether there are obstructions (such as walls, metal products, human bodies, etc.) between the shield and the wireless communication device.
4. The interference signal emitted by the jammer will be attenuated to different degrees after passing through the obstruction, please try to avoid it.
5. The original wireless communication signal strength in the application environment of the jammer.
6. The weaker the wireless communication signal strength in the use environment, the stronger the shielding effect of the jammer.
7. The distance between the application environment of the jammer and the communication base station.
8. The farther the jammer application environment is from the base station, the stronger the theoretical shielding effect of the jammer.
How to choose the most suitable jammer?
The types of shields that should be selected for different shielding areas are different:
Generally speaking, there are two types of jammers: indoor type and outdoor type.
The former is smaller than the latter in terms of volume and actual output power of the interference signal. Relatively, its production cost and selling price are also lower.
If the area to be shielded is a small and medium-sized room with a simple structure (such as classrooms, examination rooms, offices, meeting rooms, lounges, toilets, etc.), and the actual area is not more than 100 square meters, then it is more appropriate to choose a small and medium indoor shield .
If the area to be shielded is large and empty (such as warehouses; squares; auditoriums and conference venues, etc.), you can consider a large outdoor jammer.
If the area to be shielded is a large indoor space and the structure is more complex, the most ideal shielding scheme is generally a combination of large and small, that is a certain number of mainframes are deployed in a cellular manner to cover a large area, and a certain amount of minicomputers are used to eliminate blind spots, so as to achieve the most ideal shielding effect within a reasonable budget.
Read recommendations:
How to solve private cell phone use in prison
How to detect the control effect of the wireless signal shielding device in the examination room?
Popular recommended products
Waterproof 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
2020-09-144G/5G Signal Jammer (14 bands)
2020-11-10Related Information
The cost-effective test signal jammer should be directly sold by the factory
2020-12-11Customized solutions to solve these problems for you
2020-12-15Large-Scale 5.5G Network Pilot in Beijing by China Unicom & Huawei
2024-01-30How Telecom Operators Are Accelerating 5G Core Deployments in the Era of 5G SA, 5G-Advanced and AI
2025-11-27Cell phone jammer and WiFi GPS jammer illuminate your life
2020-11-17Cell phone jammer blocks any call signals
2021-12-21The 5G inter-network roaming trial will be launched in the Xinjiang Uygur autonomous region
2023-05-24Disadvantages of simple installation of jammers commonly used in domestic prisons
2021-06-01Information security construction, how can the recording blocker be absent
2020-12-11The GPS jammer with ultra-high efficiency and convenience is protecting privacy
2020-11-13Are cell phone jammers legal in schools?
2021-08-12How to choose a 5G signal jammer?
2021-09-26Some prisons abroad also implement cell phone signal blockers, prohibiting the use of cell phones in
2021-05-20The status and error of cell phone shield in prison
2020-10-26Mini car GPS jammer is loved by users
2020-11-21Cell Phone Jammer
2020-10-10How to prevent surveillance by GPS blocker
2021-09-15How do we solve the security risks of WiFi shared networks
2021-06-12Huawei's Sabrina Meng: Embracing 5G transformation
2023-08-21EU still have work to do to beef-up 5G security ahead of European rollout
2022-02-23Interfering 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
