Controlled (blocked) bands: the entire radio band, including GSM 900/1800, 3G-UMTS (IMT-2000/WCDMA), 4G: 4G-LTE 800 FDD (Band 20), 4G-LTE 2600 FDD Band 7, WiMAX, GPS, GLONASS, etc • * protection of speech information at the workplace of the owner of the cell phone in the event of its activation for the purpose of listening through cellular communication channels and/or any other radio bands.
Currently, it is no longer a secret that all mobile phones have a so-called "police mode". Thanks to its presence, the mobile operator (or an attacker equipped with a special set of equipment) can forcibly turn on the phone of interest to listen to acoustic information(activate microphone), which is within the reach of the phone's microphone. Moreover, with this activation, the phone does not show any signs that it is in one-way communication mode, and may be turned off altogether.
It is to combat these negative properties of mobile communication that the product "Box-midi"was created. Its main purpose is to protect cell phone owners from covert remote activation of their mobile devices in order to listen to their conversations.
The product fulfills its purpose in two ways:
|
Controlled (blocked) ranges |
the entire radio range, including GSM 900/1800, 3G-UMTS (IMT-2000/WCDMA), 4G: 4G-LTE 800 FDD (Band 20), 4G-LTE 2600 FDD Band 7, WiMAX, GPS, GLONASS, etc. |
|
Overall dimensions: external/internal, cm |
22х14х8/18х10х5 It is possible to manufacture in other dimensions |
|
Sound transmission coefficient between the inner cavity boxes and open space |
-80 dB |
|
The radio wave transmittance between the inner cavity of the box and the open space |
no more than -80 dB |
|
Specific surface resistance of the radio-reflecting layer |
no more than 0.5 ohms |
|
Specific volume resistance of the radio-reflecting layer |
no more than 0.15 ohms * m |
It is to combat these negative properties of mobile communication that the product "Box-midi"was created. Its main purpose is to protect cell phone owners from covert remote activation of their mobile devices in order to listen to their conversations.
The product fulfills its purpose in two ways:
|
Controlled (blocked) ranges |
the entire radio range, including GSM 900/1800, 3G-UMTS (IMT-2000/WCDMA), 4G: 4G-LTE 800 FDD (Band 20), 4G-LTE 2600 FDD Band 7, WiMAX, GPS, GLONASS, etc. |
|
Overall dimensions: external/internal, cm |
22х14х8/18х10х5 It is possible to manufacture in other dimensions |
|
Sound transmission coefficient between the inner cavity boxes and open space |
-80 dB |
|
The radio wave transmittance between the inner cavity of the box and the open space |
no more than -80 dB |
|
Specific surface resistance of the radio-reflecting layer |
no more than 0.5 ohms |
|
Specific volume resistance of the radio-reflecting layer |
no more than 0.15 ohms * m |