SECTION 6: CONDUCTING A SWEEP
103 REI OSC-5000E
MONITORING A MEETING IN PROGRESS
It is relatively easy for someone to carry an eavesdropping device into a meeting. Most
bugging devices on the market today can be turned on only when needed and easily
carried in a coat pocket, portfolio, or briefcase.
One of the unique features of the OSCOR is its ability to monitor a meeting in progress
from a remote location. The OSCOR works on the following principle: if the audio
information on a transmitted signal (IR, RF, or carrier current) is identical to the sounds in
the environment under test (referred to as the reference sound source) then an
eavesdropping transmitter is present. In normal operation, the OSCOR has a built-in
microphone that serves as the reference sound source. However, an external microphone
may be plugged into the unit for remote observation.
The OSCOR can be placed in a room adjacent to the target environment. A microphone
is placed in the target environment with an extension cable leading to the OSCOR--the
microphone extension may be run over the wall (in the case of drop ceiling), under the
door or even through the wall. The OSCOR will function as if it were located in the target
environment. During the meeting, the OSCOR can be locked in a closet, running in the
Automatic Mode printing and storing all threats for later review, or a security person may
use the OSCOR in Manual or Automatic Mode to watch for transmitters during the
meeting.
When monitoring a meeting in progress, you want to detect a threat very quickly. The
following suggestions should speed up the detection process.
The Automatic signal detection method should be set to either FASTSKIM or MED
HUNT. If someone is wearing a body bug, it will probably be relatively high power
in order to ensure that a strong signal is being received at the remote listening (or
recording) post. Setting the OSCOR at a higher squelch threshold level
(FASTSKIM or MED HUNT) will speed up the automatic search process.
All known signals should be stored in the memory as friendly signals by first
allowing the OSCOR to run in the Automatic Mode long enough to complete
sweeping all inputs. Manually, the user should review each signal using the recall
functions and tag all known signals as friendly (see page 98 Unknown Suspicious
Signals).
The Whip Hi and Discone should be the only input scanned while monitoring a
meeting in progress. This frequency band will cover most all body bugs and will
minimize the time spent scanning the entire set of inputs.
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