Dictaphone jammers and detectors

Suppressors and detectors of voice recorders, "mobile jammers" and other information security tools have become an integral part of the corporate culture in the field of medium and large businesses. With their help, they ensure the confidentiality of negotiations, exclude the leakage of important information. It is worth understanding in more detail how the "Tambourine-ultra" models and recorder protection detectors can still help.

Suppressors and detectors of means of unauthorized recording are electronic devices that generate interference or jamming communication signals aimed at transmitting data. Some of them are purely detecting devices that help identify the presence of recording or eavesdropping devices. With the help of other devices, you can block the cell phone signal. But the main goal is usually protection from writing confidential information: conversations, discussions.

It is important to understand that No jammers give a 100% guarantee of protection... Experienced security professionals prefer to combine devices with different ranges and types of audio suppression. In this case, the effectiveness will be higher.

All information security devices can be divided into several categories. The main classification is directly related to the method of exposure to sound recording devices. Among the popular options, some varieties can be distinguished.

• Communication mufflers... They work as a means of blocking the signal of a mobile phone, the effectiveness often depends on the make and model of the cell. Versatile models make the entire room impervious to signal transmission - both wireless, Wi-Fi or Bluetooth, and conventional. You cannot call, transfer files or other data, send SMS.

• Ultrasonic anti-dictophone. Although this type of acoustic maskers is used, it is not considered as reliable as possible. Such an obstacle will not stop a dictaphone in a cell phone, it is reliably protected from such influences. In addition, to successfully block the signal, it is required to use high-intensity radiation, which is unsafe for human health. The recording suppression range is also limited to 1-2 meters, that is, it is worth using the device only if there is confidence in the sound recording.

• Acoustic generators of "white noise". To put it simply, a sound source with a volume of more than 90 dB is turned on in the room, discordant or generated based on the voices heard during the conversation. Since it will be impossible to conduct a conversation in this case, special headsets are used for communication to solve this problem. You can talk to them without shouting over the "white noise".

• Electromagnetic anti-dictophones. Also known as EMP Shockwave, they successfully suppress the signal of voice recorders. But this option is powerless against recording in mobile phones. Otherwise, it is almost flawless, has a significant range.

• Voice recorder detectors. They are represented by nonlinear locators that are sensitive to devices of different types and classes, including detecting devices with a "dead" battery. Such voice recorder detectors are useful when examining premises for planted and hidden recording devices.

• Metal detectors. If a company or organization has implemented a system of personal screening of visitors, even a portable metal detector will detect a dictaphone or a hidden mobile phone. But the security service will not have the right to seize the device.

The most commonly used in confidential negotiations directional noise generators in stationary or portable design... Mobile versions of such devices are usually mounted in a case, have an autonomous power source for 30-60 minutes of operation. The signal is suppressed directionally, switching on is carried out from the remote control, remotely.

There are leaders among the companies that produce voice recorder suppressors and detectors. Under the brand "Tambourine-ultra" a whole series of portable devices is produced - from the classic model to options disguised as a clutch or audio speaker. A distinctive feature of the equipment produced under this brand is the ability to suppress the signals of voice recorders on mobile devices of various classes, including flagship smartphones.

Ultra sonic Is another market leader in voice recorder suppressors. The company specializes in the development of complex and highly targeted devices. Among the models there are 2-in-1 jammers with a communication suppressor included, devices disguised as ordinary speakers. With the help of even the most portable models, you can exclude sound recording on video cameras, voice recorders, phones, and avoid tracking your location. Also, with one touch of the remote control, the complete muffling of any signals in the mobile and wireless range of the network is turned on.

Company "Logos" manufactures products under the Chameleon brand. In its assortment you can find portable ultrasonic suppressors in the form of beads, clutches and speakers. The devices are capable of jamming not only the operation of microphones, but also other sources of communication signals.

There are certain rules allowing you to select a suitable voice recorder suppressor to use.

1. Operating conditions. In rooms with a low level of noise, you can use not too powerful blockers, in the car, on the street, in restaurants and public places, it is recommended to use suppressors with signal amplification.
2. Portability. Mobile - portable models are useful in a car or when conducting negotiations in a room that is not equipped with stationary devices. In the office, it is better to allocate a separate room, ensuring complete information security in it with the help of a special stationary signal suppressor. Better if it is a universal model capable of jamming mobile communications.
3. Suppression type... The most effective are still acoustic exposure systems that generate "white noise". All others are not as reliable.
4. Control type. The presence of the remote control allows for hidden activation of the device. This makes it much easier to trigger protection against sound recording at the right time. Several modules with different types of signal suppression will allow you to quickly and efficiently switch the device to the desired mode.
5. Frequency range. Not all devices are able to cope with the jamming of voice recorders in mobile devices. If there is a risk of information leakage, it is better to choose the option that can eliminate any threat.

When operating voice recorder jammers, it is important to understand that these devices have a limited range. For example, in the case of sound recording devices in a plastic case, the distance to them should not exceed 5-6 m. For voice recorders in a metal case, the range to the signal suppressor is reduced to 1-2 m. This factor is precisely the main drawback.

It is important to take into account that voice recorder suppressors are not included in the list of devices prohibited for use on the territory of the Russian Federation, but cellular signal jammers do not have such advantages.

Electromagnetic jammers of the voice recorder have a directional effect. The coverage angle does not exceed 60-70 degrees - this is important to consider when placing the equipment. When using equipment that generates "white noise", voice intelligibility is maintained at the level of 30-40%. This may be enough to allow information leakage.

Features of the choice of the suppressor of voice recorders are presented in the video below.