windows, and decreases in the other parts of the premises, it could be an external source.
Explore the dangerous band thoroughly in the BAND mode near the place where its level is
maximal, and also make sure that this signal is absent in other parts of the premises.
If possible, explore the adjacent premises, find the signal source and make sure that it is safe.
Take note of places there are external signals, and continue the search.
Detecting GPS trackers (beacons)
When we mention GPS trackers (beacons), we mean devices of three types:
1 Those accumulating coordinates without transmitting them anywhere.
Those accumulating coordinates and transmitting them only upon request.2
Those transmitting coordinates regularly.3
Trackers of the second and the third type usually use mobile networks for data transmission. In
order to detect these mobile devices, the iProtect 1217 must be together with the vehicle which
moves and makes manoeuvres. It is recommended to plan a trip along a route without
settlements around and/or other cars on the road.
Before the trip starts, switch off all mobile phones. If possible, deactivate the car
alarm system with mobile communication, if there is any. This will reduce the number
of false responses and will increase the probability of detection of a real dangerous
signal.
Set the threshold level at 20-30% and start moving.
In the TRACKER mode, the device measures the levels on all the mobile bands which are
activated in the settings and displays the cumulative level at the bargraph. A histogram has an
enlarged period (about 1 minute) in order to enable the user to see a short-time signal, and if
possible – to discover the periodicity of a signal's existence.
In addition to the histogram, the device also measures the time between responses
(MEASURING - PERIOD).
The presence of signals may inform about a mobile device nearby. In case of its detection, try to
monitor if there is any connection between the signal and the car's behaviour – perform a start-
stop of the engine, start moving, stop, make a turn, etc.
The iProtect 1217 is powered from the built-in rechargeable battery that has an operational
resource sufficient for carrying out search works during several hours. In view of the importance
of the search works, we recommend to charge the device in due time.
The iProtect 1217 can work during charging. For charging, a charging device for a mobile phone,
a computer USB socket, a power-bank-type device, etc. can be used.
14
P O W E R
Despite turning off all the known signal sources in the premises, you may experience responses
that arise as a result of the operation of radio frequency appliances beyond it. It may be signals
from a Wi-Fi router, a mobile telephone, a radio telephone, etc., which are in adjacent premises
or outdoors. If you see that the signal increases as you approach the wall, floor, ceiling or
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