welcome to HISEA
source:Industry News release time:2020-12-12 Article author:sznbone Popular:Prison Jamming system
How to test the effective shielding distance of the mobile phone signal jammer? Many users say that the jammer is not effective and the actual shielding radius is short, but many of them are caused by wrong methods. So the editor today will introduce to you an accurate and fast method, how to detect the shielding range of the jammer on the spot?
The most feasible method is to test a variety of mobile phones on site. The test should not be too one-sided: Use multiple mobile phones with multiple frequency ranges to test the shielding effect of the mobile phone signal jammer on the spot. This is the most convenient, most trouble-free and most feasible test method. Compared with the limitations of passing the mobile phone test software and the need to convert after passing the professional instrument test, this method is the easiest for users to grasp. Methods as below:
Prepare mobile phones with multiple frequency bands, including: China Mobile, China Unicom, PHS, 3G (it is better to have three types of 3G: Mobile TD-SCDMA, China Unicom CDMA2000, Telecom WCDMA), then turn on the mobile phone signal jammer and hold each mobile phone , Test the effective shielding radius of the shielding device from near to far away from the installation position of the mobile phone shielding device. It is recommended that the user should test the shielding distance in multiple directions with the shielding device as the origin at the same time during testing.
When checking whether the mobile phone is blocked, you should pay attention not to just check the signal grid number on the mobile phone, because the signal grid number on the mobile phone is sometimes false and does not represent the current mobile phone communication situation. At this time, we must not make a conclusion too early. This shield has no effect. Instead, you should dial the cell phone intermittently. You can try to dial a local toll-free number or a fixed landline number. If the call fails, it will be judged to be still in the shielding range. Otherwise, the shielding range is out of range.
After all the multiple frequency bands are tested, the shortest shielding radius of a certain frequency band is selected as the effective shielding radius of the mobile phone signal jammer in this area. The position can be estimated based on this when carrying out large-area honeycomb layout.
The above is a very effective and simple way to test the radius of the shield in this environment, but it should not be judged too early. The shielding effect of this shield can only be so far, and it is necessary to check whether there are base stations around. The shielding effect has a great influence. If the shielding device can meet the requirements of the examination room, it can be used with confidence.
pay attention
To test whether a certain point is within the shielding range, hold the mobile phone in this position for more than half a minute to confirm whether the mobile phone is shielded.
If you dial the phone from the unshielded area to the shielded area, you will often walk into the shielded area for a considerable distance before the phone is completely shielded. This is because once the phone is dialed, the phone itself has the ability to resist interference. This kind of anti-interference will make the mobile phone adjust its transmitting power to ensure this normal call. Therefore, it is generally not recommended to perform dynamic testing in the call state, but to perform static testing at various points.
Read recommendations:
10 Bands Portable Wi-Fi Bluetooth 3G 4G 5g GSM 500W High Power Signal Jammer
4G/5G Signal Jammer (14 bands)
How to choose the suitable signal jammer?
Looking for a powerful signal jammer with adjustable functions?
Popular recommended products
Portable HS-V8J High-Power DDS Jammer
2020-09-14Waterproof Portable 360 Degree Anti UAV Drone Jammer
2020-09-24Portable Handheld RF Signal Jammer, Car Lock Remote Control Blocker, 10W Jam Up To 100m
2022-01-13High Power Handheld Signal Jammer HS-P8J
2020-09-154G/5G Signal Jammer (14 bands)
2020-11-10Related Information
How does the wireless signal jammer in the examination room realize signal shielding?
2021-04-14China Telecom and Huawei launch first 5G one number converged private network
2023-07-06What is a cell phone jammer used for?
2021-08-24Hidden high-power multi-function signal jammer see here
2020-11-20Four matters needing attention in the use of mobile phone jammers for signal shielding in conference
2020-09-12Here is a good high-power GPS LoJack WiFi 3G 4G mobile phone jammer
2020-11-24RF signal jammers: types and characteristics
2021-05-27High power UHF VHF WiFi mobile phone jammer is used in some places
2020-11-25How to jamming 5G signals in the coming 5G era
2021-08-31Basic requirements of prison signal jammer
2021-06-23Cell phone jammer principle
2020-12-01Anti-recording artifact-recording blocker
2020-12-11Cell Phone Jammer
2020-10-10A jammer was installed for the fair examination
2021-10-12What are the influencing factors of mobile phone jammers
2021-12-10Why is there no signal on the mobile phone during the college entrance examination?
2021-11-22Cell phone jammer prevents phone communication
2021-12-13What are the misunderstandings when using signal jammers?
2021-07-09How to choose a good 4G signal jammer
2020-11-11Vodafone kicks off 5G SA deployment in Munich
2022-07-27Interfering products
Low-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
2023-07-21Portable anti UAV anti drone Systems 4 bands with removable battery for 1500m
2023-07-21Built-in antenna Phone Signal Jammer Blocker 2g/3G/4G/5g L1 WiFi Camera for room
2023-02-28Portable Handheld RF Signal Jammer, Car Lock Remote Control Blocker, 10W Jam Up To 100m
2022-01-13Start a conversation to know more about what we have for you…
Get in touch