ST 500 "Piranha" Operation Manual: Wired Receiver Channel
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Controls:
Key
Action
setting the division value of the horizontal sweep
100µS/200µS/500µS/1mS/2mS/5mS/10mS
F2
toggling AM/FM demodulation
F3, ESC
turning off OSCILLOSCOPE
F4
on/off attenuator (20 dB)
MODE
switching to the main menu of device
To turn off the OSCILLOSCOPE, press "F3" or "ESC".
LOW CURRENT CIRCUIT TESTING
Low current circuits typically utilize multiwire cables. When searching for eavesdropping
devices that may be connected to low current circuits, one should test all the possible paired
combinations of wires.
FUNCTIONAL SCHEME OF THE "WIRED RECEIVER" CHANNEL
(LOW CURRENT CIRCUITS TESTING)
6.6. "ELECTRONIC SWITCH CONTROL" MODE
Upon selection of the "LOW VOLTAGE" menu item (
), the Device will switch to
"ELECTRONIC SWITCH CONTROL" mode.
A table is displayed on the screen (fig.36), in which all combinations of wires of a multi-wire
cable and measured DC and AC voltage values in each pair are presented.
If the voltage (Vdc) in the connected pair exceeds ± 50 V, the inscription ">50" appears in the
corresponding cell.