Jammer for blocking voice recorders ``ADVOCATE-3``
It can be carried in elite folder for papers or man purse.
In comfortable acoustic mode provides reliable protection during
meetings with your employees or business partners.
Jammer A3 generates irreparable acoustic noise correlated with the original speech signal, the effect of which leads to the “destruction” of the meaning of separate phrases and sentences while conversion of the speech signal into an electric copy in all types of acoustic monitoring devices.
The acoustic signal is suitable for perception and practically does not interfere with the perception of speech by the interlocutors.
Significant distortion of meaning occurs while recording (or relaying) at a distance of 30-40 cm from the mouth of the speakers and increases with an increase of this distance.
Thus, virtually the entire volume of a room is protected, and each participant of the negotiations can record only his own speech (with severe distortions), but can not record the speech of the interlocutors. In this case, the principle of recording or transmitting a speech signal in a specific acoustic monitoring means does not matter.
Under normal conditions of the device use, recording is not subjected to further computer recovery. Acoustic noise is emitted in the speech range by two miniature speakers that receive a correlated interference signal over the air