![]() This method detects the GSM/3G modules built into the trackers, forcing them to communicate with the network. This method is more reliable, since it helps to detect trackers even if they are programmed not to transmit the ‘route’ but to collect it in the memory for a future upload under request. e) Repeat the procedure with the Protect 1207i placed in a rear part of the car as it is unknown in what part of the car the tracker might be hidden.For an ‘express’ variant 30 minutes of testing might be enough, for a ‘deep seeking’ drive for 1-2 hours while watching the detector d) The vehicle should be moving during the measurements.So, if you observe increases on the bargraph with a non-changing interval, it might be a sign of the presence of a tracker As it was said above it is unknown what interval can be pre- programmed in the tracker, but it should be the same during the measurement. Typical periodical increases might be a sign of the tracker sending signals to the network. c) Watch the GSM and 3G bar graphs on the Protect 1207i.If possible, select a route far away from highly populated cities (in the country) in order to avoid accidental measurements of GSM/3G signals from other peoples’ mobile phones b) Position the Protect 1207i in a front part of the vehicle and start moving.If the car has its own GSM/3G phone or an anti-theft alarm system, it is necessary to deactivate the phone or alarm system by taking out its SIM card temporarily ![]() a) Make sure your own mobile phones are off (‘flight mode’ on or power off) and there are no other phones in the car.Therefore Method 2 is better, although extra equipment is needed. ![]() It is also possible that a tracker uploads the collected coordinates under an external request and does not initiate transmissions by itself. The transmissions can be made with a pre-programmed interval, for example each 15 seconds, 1 minute or 15 minutes. Many trackers have a vibration sensor (G-sensor) and do not send coordinates when the car is not moving. The Protect 1207i can detect GPS trackers when they transmit their coordinates.
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