The Protect 1207i is a new measuring device which can be successfully used by engineers or counter surveillance specialists as a reliable tool for tracing different digital transmissions such as GSM, Bluetooth, etc. New methods of ‘listening and watching’ with the help of modern technologies has become widely spread in our times. For example, a tiny GSM transmitter is accessible at practically any internet spy-shop for only 100-200 USD and can listen to all your conversations in the office or at home. And perhaps more importantly the Bluetooth protocol has been specially designed to transmit voices or conversations with high quality at a distance of up to 100 m – it can easily be used for bugging.
The sensitivity of a common RF detector (bug detector) is spread along a wide frequency range, usually 3, or even 6-7 GHz. This means the common detector cannot detect such weak and non-continuous signals as Bluetooth, Wi-Fi or Wi-Max. Even more powerful signals like GSM-1800 are also hard to detect because of their low sensitivity at higher frequency ranges.
The only way to reliably detect wireless protocols is to use pre-selector chips (saw filters) which attenuate all other signals except the desired ones. This is the method implemented in the Protect 1207i which has 6 channels for different frequency ranges and can simultaneously detect 6 different kinds of transmissions at a distance much greater than any common RF detectors. Such qualities make the Protect 1207i a very desirable and reliable device during counter surveillance sweeps.
It is recommended that all sources of RF waves are detected in the premises during a search. It is necessary to determine the nature of every source – whether it is a regular transmitter like a Wi-Fi access point or it has an unclear origin and thus should be inspected and probably removed.
Ways of eavesdropping
The following are the most probable ways of eavesdropping with the use of wireless protocols:
GSM baby-monitor/GSM alarm/GSM bug
GSM/GPRS/EDGE/3G video camera
GSM spy phone
Bluetooth bugging device
Spy phone with Bluetooth/Wi-Fi function
Wi-Fi bugging device
Wi-Max bugging device
The Protect 1207i has been specially designed to detect all of the mentioned kinds of bugging devices.
The Protect 1207i has 6, 10-segment, ‘SIGNAL STRENGTH’ bar graph indicators providing the following precise information to the operator :
GSM 900 standard
GSM 1900 and CDMA 1900
WCDMA (UMTS, 3G), most of the modern DECT telephones
as above plus GSM 1900 and CDMA 1900
Wi-Fi access points and adapters, Bluetooth devices
All transmitters in the range of 3-6GHz, including most kinds of the Wi-Max protocol
Silent - used in most cases for covert operation. The operator should watch the bar graphs in this mode
Vibration, in this mode the unit’s vibrator turns on when reaching the threshold of any of the 6 bar graphs (the threshold can be selected in the setup mode)
Visual mode, when the unit tries to recognize what protocol is being transmitted in the current signal and shows the results on the ‘EXTRA DATA’ display
Listen mode, when the unit’s speaker produces a demodulated signal