The Protect 1206i has two separate RF channels which work with the two corres
-
ponding antennas. The ANT1 channel (1) is used for the detection of the wide
frequency range 50-
12
000
MHz in order to perform searches for all types of trans
-
mitters, including room, car, body-worn, telephone or other types with different
methods of modulation, both analogue and digital, including the following bands:
VHF, UHF, GSM 900/1800/1900 MHz, 3G, Wi-Fi, Wi-Max, 4G (LTE), etc. The second
channel ANT2, marked as '2.44GHz 5.39 GHz' (2) , is used for the detection of
Bluetooth and Wi-Fi only (or other signals with coinciding frequencies) but with
a higher sensitivity .
The usual method of searching suggests using the ANT1 antenna (1), i.e.
50-
12
000
MHz,
first
in
order
to
cover
a
wide
range
of
frequencies.
Then
the
procedure of scanning the area should be repeated with the ANT2 (2) selected.
Use the buttons (8) and (9) to toggle between ANT1 and ANT2.
For assistance during the search the Protect 1206i has an active correlation mode.
This function allows the operator to study the suspicious signals in certain cases.
When the 'CORR' button (10) is pressed in close proximity to the suspicious area
the unit produces probing 'beep' signals.
The sound is picked up by a bug and then
transmitted into the air. The unit will receive and demodulate transmitted waves
and the operator can see signs of the probing signals on the DEMODULATION
display (3). Fluctuations appearing simultaneously with the beeps will warn of an
FM transmitter or other type of transmission which correlates with the sound.
The
Protect
1206i
has
a
16-segment ‘SIGNAL STRENGTH' bargraph indicator (6)
providing precise information to the operator. The signals can be measured in
the range of -30dB to +8dB. The closer the unit is to the source of transmission
the higher the bargraph's level will be.
In
addition to this the new version of the detector has an increased dynamic range,
meaning that the bargraph rises quickly to weak signals and increases slowly to
strong signals, some powerful sources may cause full illumination of the display
(or when the unit is in close proximity to the transmitter). In such cases use
the attenuator buttons ATT+ and ATT- (8) to alter the sensitivity. Turn on the atte
-
nuator near a strong source when the bargraph lights fully. It will drop and then
increase further, therefore making it possible to locate more precisely.
Note
that
the
vibration function will be turned on when the SIGNAL STRENGTH (6)
approaches the 6th segment.
The
MODE
(4),
control
of
the
Protect
1206i
is
used
for
selecting
the desired
indication method. There are four modes available:
Sound mode, when the unit's speaker produces demodulated sound
Vibration
mode,
when
the
unit's
vibrator
turns on when a high level of the RF
field is reached (i.e. 6th segment of the bar graph)
Mixed mode, when both types of indication are used
Silent, when there is no sound or vibration
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