OPERATION
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noise generated by the OSCOR to perform the ranging function. Select Cancel or press F6 if you
have decided not to use the ranging function.
3. By comparing the white noise received by the built-in mic and that received through the
demodulated audio it makes a determination as to how far away the eavesdropping device is.
The distance determined by the unit is displayed at the top left hand side of the correlation
graph in parentheses after the correlation determination.
4. The Max Distance +/- drop down box can be used to zoom in on the correlation graph to see
more detail. To zoom in, select a smaller distance.
5. The OSCOR unit will automatically detect which peak is the generated white noise and display
the distance to the eavesdropping device. A red cursor with an arrow is used to indicate the
peak that the OSCOR unit has detected as the sound source. The white cursor that also appears
on the correlation graph is adjustable and can be used to determine distances for the various
peaks of the correlation graph. Tap the correlation graph with your finger or stylus so that it has
focus and you can use the rotary knob to change the position of the cursor. Each peak on the
correlation graph represents a sound source or reflection that is being detected by both the
OSCOR and the eavesdropping device.
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