10
Checking telephone lines
Telephone bugs may be installed anywhere a phone line lays. It may be within the
phone set, the phone outlet, connecting box or cable. Most telephone bugs activate
only when the receiver is off-the-hook. Therefore the sweeping of phone lines
should be carried out only when the receiver is in this state.
You should apply the rod antenna on ANT1, although the procedure can be repeated
with the Micro-Pointer on ANT1.
Start checking from the phone set. Place the Protect 1206i near the set and lift the
receiver. Watch for an increase of the RF level (or starting of the vibration). Please
note: It is pointless to test wireless (radio) telephones, for they act exactly like a
bugging device themselves due to the use of radio waves. Only a physical
inspection of these items is sufficient to know if they are bugged.
Move the detector along the phone line while keeping it off-the-hook. Check
all the outlets and communication boxes. If possible ask a second person to lift the
receiver and then hang it up repeatedly. If you see that the RF level changes when
the line is activated and deactivated, this is a sign of a bug's presence. Try to locate
the place where the RF level is highest and then perform a physical search.
Testing people
There are many types of body-carried transmitters. They may broadcast conver
-
sations and (or) video signals. While carrying the Protect 1206i with ANT1 selected
and the rod antenna in it, approach the person. If the bargraph level grows, it
means that the person is carrying a transmitting device. If you change location you
will need to select the necessary attenuator mode in accordance with the back
-
ground noise.
Another way of testing people is to place the
Protect 1206i on the desktop.
In this
case, it is necessary to watch the bargraph carefully when the person approaches
the table and sits down.
Other applications
If you cannot inspect a whole room, for example, in a restaurant or someone
else's
office, the Protect 1206i can be used for checking the closest objects to you. In a
restaurant it may be necessary to check the items on the table, or the table itself,
since they can contain a bugging device.
Detection distance
The detection range of the Protect 1206i depends on two major factors:
The output power of the transmitter and its frequency
The surrounding RF environment, such as radio / TV and communication devices
which can cause the device to show an increased level
Содержание 1206i
Страница 1: ...PROTECT 1 206i USER S MANUAL Detector of bugs and digital transmissions ...
Страница 12: ......