welcome to HISEA
source:Industry News release time:2021-09-29 Article author:sznbone Popular:Prison Jamming system
There are many types of jammers. Before purchasing, you should clarify your needs and be targeted to get twice the result with half the effort. First of all, let us briefly understand the basic points that should be understood in the purchase of shielding devices.
The basic principle of shielding? Within a certain frequency range, the mobile phone and the base station are connected by radio waves, and the data and sound transmission are completed with a certain baud rate and modulation method. The jammer scans from the low end frequency of the forward channel to the high end at a certain speed during operation. The scanning speed can cause garbled interference in the message signal received by the mobile phone. The mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station and achieve the purpose of shielding the mobile phone signal. No service system and other phenomena.
The shielding effect is affected by those factors? In the actual use environment, the interference signal emitted by the wireless signal shielding device is affected by various factors, 1. The position of the shielding device. 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. 2. Whether there are obstructions (such as walls, metal products, human bodies, etc.) between the jammer 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 original wireless communication signal strength in the application environment of the jammer. The weaker the wireless communication signal strength in the use environment, the stronger the theoretical shielding effect of the jammer. The distance between the application environment of the jammer and the communication base station. The farther the jammer application environment is from the base station, the stronger the theoretical shielding effect of the jammer.
Read recommendations:
2000m Detection Handheld Drone (UAS) Detection Warning Instrument Detector Dji, Autel and Fpv Drones
10 Bands Portable Wi-Fi Bluetooth 3G 4G 5g GSM 500W High Power Signal Jammer
Exam special shielding device creates a fair examination environment
Popular recommended products
4G/5G Signal Jammer (14 bands)
2020-11-10High Power Handheld Signal Jammer HS-P8J
2020-09-15Waterproof Portable 360 Degree Anti UAV Drone Jammer
2020-09-24Portable HS-V8J High-Power DDS Jammer
2020-09-14Portable Handheld RF Signal Jammer, Car Lock Remote Control Blocker, 10W Jam Up To 100m
2022-01-13Related Information
The status and error of cell phone shield in prison
2020-10-26The cost-effective test signal jammer should be directly sold by the factory
2020-12-11Mobile phone shielding device avoids the disadvantages of using mobile phone.
2020-11-19What are the characteristics of the test room signal jammer?
2020-11-04China to boost R&D of 6G network in 2023
2023-02-13the function of GPS jammer
2021-04-16Is the jammer waterproof?
2021-07-31Teach you how to prevent malicious recording?
2021-08-25Can blocking recording equipment effectively block mobile phone recordings?
2021-03-24Precautions for choosing mobile phone jammer in conference room!Meeting room jammer
2021-09-17An excellent cell phone signal jammer you can't miss
2020-11-11Mobile phone jammer maintains a good environment for important meetings
2020-11-09The Status Quo and Misunderstandings of Prison Mobile Phone Blockers
2020-09-25Home WiFi mobile phone signal jammer has many benefits
2020-11-06These places must be equipped with signal jammers!
2021-08-104 advantages of mobile phone signal jammer
2021-10-165G jammers will soon replace 4G signal blockers
2021-05-28How to test the effective shielding distance of the mobile phone signal jammer?
2020-12-12How to choose the suitable signal shielding manufacturer
2020-10-26Ordinary people cannot detect mobile phone tower tracking jammers
2021-11-24Interfering 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
