In today's world, the information we transmit and receive can become a powerful weapon. That's why a large number of technological innovations are being created that allow unauthorized access to this information - we mainly talk about recorders, as this specific device is one of the cheapest and easiest to use devices. Fortunately, with the development of technological progress, new devices are being developed to prevent information leakage. The most popular among them can be correctly referred to as a recorder suppressor.
Most recorder signal jammer have the same design - generators, power supplies, and antennas. In this case, the interference is directional radiation, which radiates to the area pointed by the antenna. When an electromagnetic signal is emitted, any listening device with a microphone will be suppressed due to the impact on the input circuit. In this case, the shielding level of the recorder plays a huge role, and the range of the suppressor depends on it.
The operation of the recorder suppressor is based on aiming low-frequency noise signals at the input of the amplifier.
Suppressors based on electromagnetic interference;
Suppressor based on acoustic interference.
Acoustic interference is produced by a special equipment - acoustic white noise generator. It fills the room with special sound waves, which are superimposed on any generated voice signal. Simply put, the louder the sound in the room where this device is installed, the stronger the interference superimposed on it during recording. Electromagnetic interference can also occur through the use of special equipment, which is a noise generator that directly enters the microphone amplifier.
In addition, recorder suppressors are divided into portable and fixed types. The portable suppressor is a small box with an independent power supply, so it can be placed anywhere at will. Recently, a portable suppressor has appeared on the market, which is just the size to fit in a woman's handbag.
The fixed signal jammer is powered by a power supply and requires the correct installation of the antenna, as well as the correct placement of the equipment to achieve the most effective operation.
All modern suppressors have the same working principle and almost the same effect. Among the advantages of using these devices, it is worth emphasizing that:
The effectiveness of sound suppression - its significant distortion;
The relative availability of tools;
Large suppression radius - up to 5 meters.
However, using suppression systems also has drawbacks that require more detailed discussion:
When it comes to shielded tape recorders or recording devices without external microphones, the effectiveness of standard signal jammer can be greatly reduced. In addition, when it comes to digital recorders, suppression difficulties were observed - some of which had no effect on the suppression device at all.
Another important drawback of using signal jammer is their impact on humans, which is more than 10 times greater than the impact of standard mobile phones due to their strong electromagnetic radiation. Due to this characteristic, many such devices have obtained special medical certificates, which specify the safety measures required when using suppressors, including the distance that must be maintained between people and the operating equipment, as well as the safety time.
The noise electromagnetic radiation generated by the equipment may cause the operation of indoor radio electronic equipment (including speakers, walkie talkies, televisions, monitors, fixed telephones and cordless telephone) to malfunction.
Fortunately, if these shortcomings cannot be bypassed, at least their impact can be reduced. Especially, in order to minimize harmful radiation, users must carefully follow the measures specified in the medical certificate accompanying the device. You can move the electronic device to another location, or even simply rearrange the furniture in the room to eliminate interference with the operation of the electronic device.
It is difficult to overestimate the actual benefits of a recorder suppressor. Privacy and personal information security are one of the guarantees of freedom of choice. This is why it is the sole responsibility to choose such equipment. In this case, you should not save on the cost of the suppressor and compromise its characteristics, as personal safety is priceless. The most important thing is to consult competent experts when purchasing and installing equipment, who will help reduce the drawbacks of using it and fully utilize its advantages.
