ST Group PIRANHA ST 500, Руководство пользователя

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ST 500 "Piranha" Operation Manual: Use Guidelines
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9.3. GUIDELINES FOR USE OF THE "WIRED RECEIVER" CHANNEL
The WIRED RECEIVER channel is intended for the detection of wired high-frequency
transmitters in electric mains and low current circuits.
The range of information transmission via electric mains, as a rule, does not exceed 500
meters within one or several buildings, which are powered from one low-voltage bus of a
transformer substation. When using telephone lines and LAN cables, the transmission distance
may exceed 500 meters.
Method of connection to the circuit:
parallel.
Power Supply: from the circuit, or from an autonomous source.
Search objects:
 Power mains lines
 Telephone lines
 LAN cabling
 Other low current lines, including those out of operation (with no end user devices
connected) and/or illegitimately laid cabling
Auxiliary equipment:
 Adapter for connecting the main unit to electric mains ( fig.1, 2 )
 Test sound source
To search for HF signals in electric mains and low current circuits, the "PANORAMA"
(DIFFERENTIAL) and the AUTOMATED modes are used.
For the analysis of the detected signal, the "FIXED-FREQUENCY ANALYSIS" function and
OSCILLOSCOPE are used.
9.3.1. ELECTRIC MAINS TESTING
The initial state.
The electric mains is powered and it is possible to de-energize it. This line only supplies the
checked room. It is suspected that high-frequency transmitters may be planted on the mains
cabling or user devices connected to it, transferring data through the cabling outside the room.
Search algorithm:
1. De-energize the circuit.
2. Make sure there is no voltage on the electric mains branch in the room.
3. Disconnect all consumer devices from the mains (plug them out of the sockets).
4. Connect the electric mains adapter to the main unit, and to one of the electric sockets on
the circuit.
5. Turn on ST 500 activate the "WIRED RECEIVER" channel.
6. Set "MAINS" in the circuit type selection menu.
7. Select the frequency range to scan (100 kHz – 60 MHz or 100 kHz – 180 MHz); all activity
within the range will be shown, with the mains branch de-energized.
8. Turn on the attenuator ("F4").