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FUNCTIONAL SPECIFICATION
VIDEO TESTER
Connect the output terminal of video
output system to the video input BNC
of Rapport III. Connect the video
output BNC of Rapport III to the video
input terminal of system.
OSD Screen Setup
VIDEO
:
Indicates that the Rapport III is in
video test mode.
Whenever there is a video input, in
video test mode, the video level is
automatically displayed.
On PAL mode, the video
will be dsiplayed in IRE.
On NTSC mode, the video
will be displayed in mV
BACK
Go back to the
Video mode
FORMAT
Toggle the video
type between
NTSC and PAL
CLR
Clear OSD
Video and Testing
: By default the Video will be displayed in the top portion of
the screen. If there is no video signal at the VIDEO IN port of the Rapport III
/Rapport HI-PRO "LOSS" will be displayed.
Depending on the type of camera connected to the tester the Video and Sync
level will automatically change between IRE (Institute of Radio Engineers) and
mV. NTSC signals that are used in North America are measured in IRE units,
PAL signals that are common throughout the rest of the world are measured in
mV (millivolts)
FUNCTIONAL SPECIFICATION
Understanding Video and Sync Level
Rapport ill / Rapport ill PRO measures the combined Luminance and Burst
levels of a composite video signal as the Video Level. The Sync signal is
embedded between the Luminance and Colour Burst signals. See the following
chart for a description of the levels that are expected.
Luminance Level
100 ± 10 IRE
Colour Burst Level
40 ± 5 IRE
Video Level
140 ± 15 IRE
NTSC
Sync Level
40 ± 5 IRE
Luminance Level
700 ± 140 mV
Colour Burst Level
300 ± 35 mV
Video Level
1000 ± 175 mV
PAL
Sync Level
300 ± 35 mV
22 23
Video
Burst
Level
Luminace Level
Sync
Level
Burst
Level
Summary of Contents for Rapport III
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