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VITC KEYER
OFF
ON
VITC LINES
GEN VITC LINES
LINE 1
LINE 2
10
20
%
OPERATING INSTRUCTIONS
5 SRC ID + STS
the 5 character ID format.
TIME 5 SRC ID
the 5 character ID format.
TIME 9 SRC ID
the 9 character ID format.
TIME 5 SRC ID + STS
the 5 character ID format.
3.4.2. Turning the VITC Generator On
The VITC KEYER menu item controls whether the VITC keyer will be on or
off.
Select OFF to disable the VITC Keyer
Select ON to enable the VITC keyer.
3.4.3. Selecting the Lines to Generate VITC On
The VITC LINES menu item is used to select the lines on which the VITC
will be inserted.
When the VITC LINES sub menu is first selected, the LINE 1 number will
be in reverse video indicating it can be changed. Press the up and down
(#, $) keys to change LINE 1. Press the right (") key to highlight LINE 2,
indicating that it can be changed. Press the up and down (#, $) keys to
change LINE 2.
The user will have to determine by experience the most suitable lines for
generating VITC according to the following criteria.
It is recommended that two non-adjacent lines be used, however adjacent
lines and a single line (selected when both lines are the same) are permitted.
3.4.4. Selecting the Generator Drop Frame Mode
In NTSC, the video frame rate of approximately 29.97 frames per second
causes an error between real time and 'colour time'. To overcome this
problem, the drop frame mode was created. This mode compensates for
the approximate 4 minute per day error by dropping the first two frame
counts (0, 1) at the start of each minute, except minutes 0, 10, 20, 30, 40,
and 50. A drop frame flag bit is set in the code when the drop frame format
is used. When the SRC ID mode is set to one of the modes that encodes
Model 5010-SIE Source ID Encoder Manual
Turns off the time, turns on the status and encodes
Turns on the time, turns off the status and encodes
Turns on the time, turns off the status and encodes
Turns on the time and status and encodes
Page 3-8
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