RECOMMENDATION FOR USE
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8. RECOMMENDATIONS FOR USE
8.1. RECOMMENDATION FOR USING THE SEARCH RECEIVERS (20 MHZ - 6 GHZ
AND 6 GHZ - 12 GHZ)
There are two options for searching for eavesdropping devices:
search in the AUTOMATED mode;
search in manual mode (PANORAMA and DIFFERENTIAL mode).
There are three stages of searching for eavesdropping devices:
1. Signal detection;
2. Identification of the detected signal ("DANGEROUS"/"NON-DANGEROUS");
3. Localization of the source of the "DANGEROUS" signal.
8.1.1. SEARCH IN THE AUTOMATED MODE
AUTOMATED mode is used when the frequency range is lightly loaded in the tested room.
Search algorithm:
1.
In the tested room:
turn on the player of the test sound (PTS) and adjust the volume level;
connect the antenna and headphones to the main unit (when searching in the 6 GHz -12
GHz range, you do not need to connect the antenna);
turn on the device.
2.
Turn on the search
receiver (20 MHz - 6 GHz or 6 GHz - 12 GHz).
3.
Set the optimal gain without overscaling (only for receiver 20 MHz - 6 GHz).
4.
Turn on the AUTOMATED mode.
5.
Sort the table in ascending order of signal level and set the cursor on the first row.
6.
Analyze the demodulated signal:
listen to the signal at different values of the bandwidth (only for receiver 20 MHz - 6 GHz);
analyze the signal on an oscilloscope;
fine-tune the frequency, if necessary.
Signs of "DANGEROUS" signals:
at the frequency of the detected signal, a test sound is heard in the headphones;
the test sound is not audible, the oscillogram of the demodulated signal changes when the
test sound changes;
the detected signal is highlighted in the table in red. This means that a mobile digital
communication device is detected or a signal is received in the range used by radio
transmitting eavesdropping devices;
the signal level decreases significantly when the device is moved from the tested room;
in the 20 MHz - 6 GHz frequency range, the CAM indicator appears in the information line
(a TV camera transmission channel is detected).
7.
Analyze other signals in the same way.