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Modern communications give varied
possibilities of information exchange. At the
same time these devices can become a dangerous
tool for picking up information illegally. A
reprogramming of your mobile phone, substitution
of it, or being given a modified telephone will
give other people access to the data in your
telephone, or the ability to listen to all
conversations around you from anywhere in the
world. Such illegal actions can be accomplished
without any signs on the display being shown or
sound signals being heard.
The GSM-BOX II has been designed
to detect and indicate the illegal activation of
a mobile phone. In addition to this main
function, the GSM-BOX II also creates
interference to the surrounding area of the
telephone’s microphone by generating ‘white
noise’ when radio-waves are detected; this noise
suppresses the microphone in the telephone
rendering it useless.
GSM-BOX II is an updated version
of its predecessor (GSM-BOX), and has the
following distinctive features:
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Warns you with the help of
the 3 LEDs and a sound alarm when the
telephone starts exchanging data with the
network
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Automatic generation of audio
interference
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Accurate and sensitive
detection of GSM 900/1800, CDMA850,
WCDMA2100 (3G, UMTS) and Wi-Fi/Bluetooth by
intelligent algorithm of microcontroller
-
Separate visual and sound
indication of different communication
protocols
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New convenient ‘credit
card-style’ design suitable for pocket use,
belt carrying cases, bags, desktop stands,
etc.
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A new sensitive scheme of
detection with pre-selectors provides better
detection distance
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Long battery resource of up
to 5 days (low current consumption)
-
Does not block the mobile
network in the area
-
Has no adverse effect on
health (no electromagnetic waves)
Specification
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Detected protocols |
GSM 900/1800, CDMA850, WCDMA2100 (3G,
UMTS) and Wi-Fi/Bluetooth |
|
Frequency range of generated
interference |
300-5000 Hz (white noise) |
|
Sound pressure level in the area of the
speaker |
90 dB |
|
Power source |
3V, CR2430 battery |
|
Current consumption |
3 mcA/15mA (standby/noise) |
|
Dimensions |
100x50x5 mm |
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