SECTION 3: OSCOR MANUAL OPERATION
65 REI OSC-5000E
DETECTING VIDEO THREATS
The OSCOR includes video demodulation capability with a built-in monitor. By providing
the camera's view, the video threat is identified.
NOTE: To conduct covert video transmitter detection, OSCOR should be placed in a
room adjacent to the suspect environment prior to entering. This will allow the OSCOR
to acquire the video signal without being caught on camera. If you recognize the picture,
or even see yourself, there is a video transmitter present.
Identifying a Video Signal
Video signals have a distinctive vibrating sound when received by the OSCOR audio
receiver, and can be identified even without a video monitor. This vibrating sound is due
to the video synch pulse within the video signal. A video signal with moving images will
have changing audio pitch due to moving images or a change of picture images. A still
image (such as an empty room) will have a constant vibrating sound.
Once a video transmitter is detected, the OSCOR locator probe can be used to locate
the video transmitter using the same method as an audio transmitter, or by simply
studying the picture.
NOTE: Here is another novel method to identify and locate a video transmitter.
First, test the room by listening to the audio sound of the video signal while
turning the lights on and off. If the audio pitch of the vibrating audio changes
significantly when the lights are turned on or off, this indicates that the video
signal is responding to the changing light level of the room and the video signal is
associated with the room. To locate the video signal, turn the lights off and use a
focused high intensity flashlight to scan the room. When the flashlight is pointed
directly at the video camera, the audio pitch of the video signal will significantly
change.
To use the Video imaging option:
1. Tune to the signal of interest in the Analyze Mode.
2. Press the IMAGE button.
3. To select a video format (NTSC, PAL, or SECAM), press F1.
4. To select a positive or negative synch pulse, press the F2 button.
5. To select the video modulation as AM or FM, press F3.
6. To turn off the monitor press the F4 button labeled “OFF”.
NOTE: The video monitor should be turned off when not in use to conserve battery
power.
Using a Separate Video Monitor
A separate video monitor may be connected to the OSCOR using the video patch cord,
Page 8.
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