Grass Valley 7600REF User Manual
Page 59
7600 SD/HD/MHD-REF — Instruction Manual
59
Operation
LTC
This submenu has the following modes:
•
Mode
– turns the timecode On or Off.
•
Frame Rate
– since LTC is not encoded within a video signal, the frame
rate must be set either explicitly or by linked association with another
system output. Refer to
LTC – Frame Rate Sub Menu on page 61
•
Drop/Non-Drop
– relates to 525/NTSC line timecode and determines
whether frames are dropped to compensate for the non-integer number
of NTSC frames per second.
•
Color Frame Flag
– this is a single bit within the data stream which indi-
cates whether timecode is related to the video signal. This menu option
allows the operator to turn this bit On or Off.
•
Timecode Offset
– an additional offset may be applied to any timecode
output with a value between -23h: 59m: 59s and +23h: 59m: 59s. The
default is 0h: 0m: 0s. This offset is applied immediately. Timecode
outputs using the same oscillator frequency will remain “in-step” using
the Timecode JAM settings applied in the Timecode JAM menu.
•
Binary Group Bits
– the primary function of the Flag Bits is to allow the
operator to embed a date code within the data stream since timecode
represents only embedded time. This conforms to SMPTE S309. Refer
to