Table 3-20: Timing Adjustment Ranges For Gps7 Input Signals - Tektronix TG8000 User Manual

GPS7 GPS Synchronization and Timecode module
3–120
Use the up (▲) or down (▼) arrow button to select a timing parameter, and then
use the left (◄) or right (►) arrow button to adjust the parameter. The range of
the timing adjustment depends on the selected signal format. (See Table 3-20.)
Vertical: Use the left (◄) or right (►) arrow button to adjust the Genlock
vertical offset in 1 line increments.
Horizontal Coarse: Use the left (◄) or right (►) arrow button to adjust the
Genlock horizontal offset in 0.0185 μsec increments.
Horizontal Fine: Use the left (◄) or right (►) arrow button to adjust the
Genlock horizontal offset in 0.1 nsec increments.
NOTE.
You can reset the timing offset to zero by pressing the left (◄) and right
(►) arrow buttons simultaneously.
If you are using the 50, 59.94 or 60 Hz progressive sync as a genlock source, as
well as LTC as a time-code source, there are two possible alignments for the
resulting system. Alignment can be checked by looking at the LTC timing status
screen. If the timing is near zero, then it is aligned. If the timing is near a frame of
offset, then it is not aligned.
You will need to unlock and re-lock the reference to achieve the desired alignment
if this is important to the application you are using. Alternatively, you can use a
lower frame rate video reference like NTSC, PAL, or 1080i tri-level.

Table 3-20: Timing adjustment ranges for GPS7 input signals

Format name Line settings
± 525
NTSC
PAL ± 1250
1080 60i ± 562
1080 59.94i ± 562
1080 50i ± 562
1080 24sF ± 562
1080 23.98sF ± 562
1080 30p ± 562
1080 29.97p ± 562
1080 25p ± 562
1080 24p ± 562
1080 23.98p ± 562
720 60p ± 375
720 59.94p ± 375
720 50p ± 375
Coarse settings (μs)
± 63.5556
± 64.0000
± 29.6296
± 29.6593
± 35.5556
± 37.0370
± 37.0741
± 29.6296
± 29.6593
± 35.5556
± 37.0370
± 37.0741
± 22.2222
± 22.2444
± 26.6667
TG8000 Multiformat Test Signal Generator User Manual
Fine settings (ns)
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00
± 10.00