ST Group ST 100, Руководство пользователя

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RECOMMENDATION FOR USE
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8.2.2. SIGNAL SOURCE LOCALIZATION
When using the SELECTED RANGES channel, the signal source is localized using the ANALYSIS
OF THE DETECTED SIGNAL function (item 5.4) .
To turn on this function, set the cursor on the required line in the table of the current mode
and press ENTER.
Further, on the basis of the indicator readings (Fig. 25, item 12) , search a place in the room
where the maximum signal level is fixed.
If necessary, for further search, you can use other search devices (nonlinear locator,
inspection mirrors, etc.).
8.3. RECOMMENDATIONS FOR USING AN INFRARED DETECTOR
The IR DETECTOR is designed to detect and localize eavesdropping devices transmitting
information in the infrared frequency range to a special IR receiver. The range of such a system is
several hundred meters and the IR transmitter and IR receiver must "see" each other.
As a rule, the receiver is located outside the tested room, and the IR transmitter is opposite
the window.
8.3.1. SEARCH FOR SIGNALS
The search for the eavesdropping device must be started from the window, directing the IR
sensor towards the intended location of the IR transmitter.
It should be borne in mind that the detection range of the IR detector is 50-70 cm.
Search algorithm:
1.
Turn on the the PTS in tested room.
2. Turn on the IR DETECTOR.
3. Direct the IR sensor towards the intended location of the eavesdropping device
.
4. Commit changes:
 signal level on the indicator (Fig. 26, item 2) ,
 oscillogram (Fig. 26, item 4) ,
 headphone volume.
An increase in the signal level indicates the appearance of an active source of the IR signal in
the field of view of the IR sensor (±20
0
).
Signs of a "DANGEROUS" signal:
 High signal level. A test sound is heard in the headphones;
 High signal level. The test sound is not heard in the headphones. The oscillogram is
typical for a digital signal.
Signal localization is carried out using the signal level indicator
(Fig. 26, item 2) . The IR
source is installed where the signal strength is at its maximum. For more accurate localization,
the DIFFERENTIAL mode is used
(item 6.1) .