14. STATUS DISPLAY
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14.6
Configuring Phase Difference Measurement Settings
To configure phase difference measurement settings, on the status menu, press F•2 SDI
ANALYSIS
→
F•2 EXT REF PHASE. You can measure the phase difference between the
SDI signal and the external sync signal. You can also measure the phase difference between
links A and B when the link format is set to dual.
To measure the phase difference with the external sync signal, turn the front panel EXT key
on, and then apply an external sync signal. The supported external sync signal formats are
listed below.
• 1080i/60, 1080i/59.94, 1080i/50
• 1080p/30, 1080p/29.97, 1080p/25, 1080p/24, 1080p/23.98
• 1080PsF/30, 1080PsF/29.97, 1080PsF/25, 1080PsF/24, 1080PsF/23.98
• 720p/60, 720p/59.94, 720p/50, 720p/30, 720p/29.97, 720p/25, 720p/24, 720p/23.98
• NTSC and NTSC with a 10-field ID
• PAL
To measure the phase difference between links A and B, set the link format to dual, and then
set F•3 REF SELECT to LINK A.
14.6.1
Displaying the Phase Difference Measurement Screen
To display the phase difference measurement screen, press F•2 EXT REF PHASE.
On the right half of the screen, the vertical axis indicates the V phase difference in lines,
and the horizontal axis represents the H phase time difference. When the circles that
represent V and H overlap with each other in the center, there is no phase difference.
The circles are normally displayed in white, but the circle that represents the H axis is
displayed in green when it is within ±3 clocks of the center, and the circle that represents
the V axis is displayed in green when it is at the center (±0 lines).
Circles do not appear when the internal sync signal is used.
For both the V and H axes, differences of up to approxi1/2 frames from the center
are displayed on the Delay axis and differences of up to approximately -1/2 frames from the
center are displayed on the Advance axis. The H axis phase difference display may
fluctuate within the range of ±1 clock in cases such as when the signal is switched.
Figure 14-6 Phase difference measurement screen
