welcome to HISEA
source:Industry News release time:2020-12-03 Article author:sznbone Popular:Prison Jamming system
Recording jammer is also called a recording jammer or anti-recording device. It is an instrument that shields and interferes with recording. By generating random noise signals, it produces suppressive interference to the voice signal, so that only noise information is picked up by the recording device, but the voice information cannot be distinguished, and the original information cannot be restored from the recorded signal, thereby ensuring the security of the voice information . The recording jammer adopts security encryption processing, and effectively prevents post-recovery by mixing high and low frequency audio sources.
In today’s society, information is rapidly developed, audio and video information is showing explosive growth and viral transmission. The problem of voice information leakage is a difficult problem in the world. People’s normal conversations are recorded silently. Reprocessing out of context has become a means of coercion by people with ulterior motives, and some important information related to national security is illegally recorded and spread, becoming a security risk! How can valuable conversations not be stolen by others?
For this reason, Shenzhou Mingda spent 7 years devoting himself to the development of a recording jammer product, which can effectively prevent illegal sound collection such as mobile phones, voice recorders, video audio parts, recorders, etc. Recording jammers can be widely used in confidential meeting rooms, public security bureau petition centers, procuratorate reception halls, courts, negotiation rooms, offices and other places for private conversations to meet the various needs of meeting rooms and individuals.
The principle of recording equipment: With the development of science and technology, the popularization of mobile phones, voice recorders, micro-devices or disguised eavesdropping devices, business security is facing a huge threat. The process of recording is that the microphone (MIC) first collects the surrounding sound, converts the sound into an analog signal, amplified by the amplifier, and then sends it to the analog/digital conversion circuit to convert it into a binary digital signal, and writes sequentially under the control of the write signal It is stored in the memory RAM, and when playing sound, the stored digital signal is decoded into audio and then output by the audio amplifier.
The L7B recording jammer emits ultrasonic waves with random noise that human ears cannot perceive. When recording on digital devices such as mobile phones, these noises are recorded into the digital device together with the sound of normal conversations, making the recorded audio invalid. The audio information in the captured video also has the same interference effect. Because the noisy ultrasonic noise is randomly generated and cannot be restored, the audio after the interference cannot be restored, thus ensuring that the original information is not leaked and spread.
Read recommendations:
4G/5G Signal Jammer (14 bands)
Mobile Phone Cellular Signal Booster GSM PCS Network Repeater for Garage Basement Signal Repeat
Professional all-round 360-degree recording jammer air purifier type anti-recording equipment
Mobile jammers are prohibited devices by law
Vehicle GPS signal shield, will affect the mobile phone network signal?
From railways to 5G: why China is plugging into the Digital Silk Road
Popular recommended products
Portable HS-V8J High-Power DDS Jammer
2020-09-14Portable Handheld RF Signal Jammer, Car Lock Remote Control Blocker, 10W Jam Up To 100m
2022-01-13High Power Handheld Signal Jammer HS-P8J
2020-09-15Waterproof Portable 360 Degree Anti UAV Drone Jammer
2020-09-244G/5G Signal Jammer (14 bands)
2020-11-10Related Information
Is the cell phone signal shielding cabinet suitable for use in meeting rooms?Portable Man-pack Signa
2021-09-03Mobile cell tower spoofing jammers to combat human trafficking
2021-11-17Iran uses jammers to grab US drone
2021-07-21Recommended recording jammer with good interference effect
2021-08-31What are the current status and misunderstandings of cell phone signal shielding device in prison?
2020-10-265G subscribers in MENA region to reach 290m by 2028: Ericsson
2023-07-20More and more exams are escorted by mobile phone jammers
2020-11-09Who needs a handheld Wifi Bluetooth 4G mobile phone signal jammer?
2020-11-11Precautions for installation of signal jammer!Wireless Network Signal Jammer devices
2021-09-28The working principle of wireless signal jammer
2020-12-01How to effectively avoid being recorded?
2021-08-24The Mobile Evolution a Comprehensive Journey from 2G to 5G
2024-01-04GSM jammers installed in examination room to prevent cheating
2021-07-15Russian college entrance examination also uses mobile phone signal shielding equipment to prevent ch
2021-08-05Investments in 5G mmWave Solutions to Pick up in 2023
2022-04-265G: Empowering classrooms of the future
2022-02-15Malaysia PM Anwar considers opening 5G ecosystem to more technology partners
2023-04-17The Principle of Mobile Phone Jammer
2020-10-22WiFi jammer keeps meetings ongoing
2021-06-16How to solve the problem of recording leakage?
2020-12-03Interfering 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 touchEnter your email for exclusive offers and information on new upcoming products.
product
solution
about us
service
news
