Selecting The Lines To Record Vitc On - (Except 3 Line Vitc Standard) - evertz 4025 Instruction Manual

OPERATION
directly. (See section 3.9.1 for information about the use of your VTR's
time code generator with film edge numbers.) Audio time code may be
connected to the 4025's VITC reader with the use of an LTC to VITC
translator such as the Evertz 621-LTR.
This configuration prevents the 4025 from jamming to its own timecode,
which can cause instabilities in the number sequences when the VTR goes
E-E during recording.
3.9.7 Selecting the Lines to Record VITC on - (Except 3 Line VITC
Standard)
The 4025 contains a multi-line VITC generator capable of generating
multiple sets of VITC data. When the generator assignment is not set to 3
LINE VITC STD, the primary VITC generator (VITC1) follows the LTC
generator, except that it is updated at the field rate instead of the frame
rate. The secondary VITC generator (VITC2) is used to encode the full
KeyKode edge number including frames in the CINE RDR 2 + KEYKODE
or RDR1 RDR 2 + KEYKODE time code modes.
Selection of the lines for recording the VITC is performed using the Format
menu displayed on the character generator. Press the FORMAT to access
the Format menu. Using the
menu. Use the
GEN VITC2 LINES menu item to set the VITC lines. Press the SELECT
key to show the VITC LINES sub menu. Line1 and line2 are the two lines
currently selected for the VITC1 or VITC2 generator.
When the VITC LINES sub menu is first selected, the Line1 will be in
reverse video indicating it can be changed. Press the
change Line1. Press the
can be changed. Press the
FORMAT or CLR keys to exit the format menu or press the SELECT key to
return to the TIMECODE drop down menu.
determine by experience the most suitable lines for recording VITC,
according to the following criteria.
In order to protect the VITC reading process against dropouts, the VITC is
usually repeated on 2 non-adjacent lines in the vertical interval of the video
signal, not earlier than line 10 (6 for PAL) or later than line 20 (21 for PAL).
For certain recordings, the use of some of these lines may interfere with
other signals inserted into the vertical interval.
To avoid decoding errors, an adequate margin should be allowed between
the video head switching points and the recorded VITC word. Also note
that type C VTRs with a sync head have a head switching point in the
middle of the permitted lines. Type C VTRs without a sync head do not
reproduce some of the permitted lines at all, therefore these lines should
not be used for recording VITC.
information.
Model 4025 Film Footage Encoder Manual
& keys drop down the TIMECODE
& keys to highlight the GEN VITC1 LINES or
& keys to highlight Line2 indicating that it
& keys to change Line2. Press the
See your VTR manual for further
& keys to
The user will have to
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