Tektronix 2200 Camcorder User Manual


 
3-19
System Parameters
With
FIELD 1
selected as the dominant field, if a change takes
place just prior to Field 1, the change will become effective at the
beginning of Field 1. But if the change takes place prior to Field 2,
the change will be delayed by one field so that it also becomes
effective at the beginning of the next Field 1. This way, all changes
will be synchronized to take place at the beginning of Field 1.
Similarly, if
FIELD 2
were selected as the dominant field, those
changes that take place prior to Field 1 would be delayed until
Field 2.
If you are recording the switcher output on video tape and will be
doing post-production editing of the tape, it is recommended that
you set Field Dominance for a specific field (either
FIELD 1
or
FIELD 2
), and leave it at that setting. This will ensure that all
changes will take effect consistently on the same field.
If an Editor or a GPI trigger initiates one of these functions, it will
produce the same effect as a control panel change. That is, the
initiation of any of these functions will be delayed until the
beginning of the selected dominant field.
3. Set the matte generator chroma limiting algorithm by
toggling through the available choices. The MATTE GEN LIM
selections are:
XMITABL — Prevents the total signal (luminance and
chrominance) from exceeding the NTSC transmission
standard.
VALID RGB — Limits colors to those which generate red,
green, and blue values within the 0 to 100% range.
BOTH — Selects a valid RGB color limiter which also prevents
the encoded signal envelope from exceeding NTSC
transmission level. This is the system default mode.
NONE — Turns off all algorithm methods for matte generator
limiting.
4. Press SET CLOCK> to open the Set Clock menu to set the
system time and date.
Press exit to return to the Configuration menu.