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source:Industry News release time:2021-08-27 Article author:sznbone Popular:Prison Jamming system
Recording jammer is a kind of equipment used to shield recording in a specific environment. It can effectively interfere with the recording equipment of digital and tape recorders, cameras, and eavesdroppers. It can effectively interfere with digital voice recorders and tape recorders with a frequency of 100HZ-20000HZ. By outputting white noise outside the frequency range of human hearing, the voice recorder or tape recorder can only record a piece of "humming" noise, and the conversation content of the speaker cannot be recorded, and the recorded voice cannot be restored after sound post-processing. The sound (because the sound captured by the recording device is only noise). So as to effectively protect the conversation content from being secretly recorded. At the same time, the recording equipment jammer does not emit any visible sound during work.
The newly developed recording jammer has core technology, and its shielding and hiding effects are better than domestic and foreign products. This device can effectively interfere with digital and tape recorders and various eavesdroppers with a pickup frequency of 100Hz-20000Hz. It can only record the "buzzing" noise, and cannot record the conversation content of the speaker. The recorded sound cannot be restored after post-processing, thus effectively protecting the dialogue content from being leaked.
The newly developed L7B recording jammer is upgraded on the basis of the original equipment. The FPGA-based ultrasonic noise algorithm eliminates the high-frequency noise of the old equipment. It adds the information of various brands of mobile phones and recording equipment that have been on the market in the past two years. The new recording equipment and mobile phone recording have very obvious effects.
The MDPB-L7B recording jammer is used to interfere with any recording equipment around it, and the interference distance can reach up to 10 meters, depending on the performance of the recording equipment. In addition, it also has an acoustic interference mode, which randomly generates a noise background, which is similar to human voice noise that can be adjusted in volume. If your conversation is recorded by a recording device, the recorded voice record contains a variety of mixed sounds, making it impossible to hear any of them.
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