Tektronix SPG8000A, Руководство пользователя

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SPG8000A User Manual 99
SDI Timecode Submenu
Use this submenu to set ancillary time c ode (ATC) parameters for the selected
output. Figure 30 shows the SDI Timecode submenu.
Figure 30: SDI Timecode submenu
Source
Select the drop- down list and choose the time code source from the se choices. The
default value is local (DST).
Local (DST): Uses the local time of day with Daylight Savings Time offset
as the time code.
Local (No DST): Uses the local time of day without Daylight Savings Time
offset as the time code.
UTC: Uses Coordinated Universal Time as the time code.
Program Time:
Uses the program time counter as the time code.
Note:
The Local (DST), Local (No DST) and UTC menu items are available only
when Option GPS is installed in the instrument .
Offset
Use this menu item to set a time code o ffset for the SDI outputs. This is an offset from
the selected time code source.
Note: The o ffset adjustment allows you to enter a time zone correction of up to
±23:59 hours. However, the ST309 standard only implements codes for time zones
in the range of - 12 to +13 hours. Therefore, when you are using ST309 data as the
Time of Day source, it is recommended that the combined programmed offset from
time zone and DST be restricted to the range of -12 to +13 hours.
ATC-LTC Enable
Select this check box to enable or disable the Ancillary Linear time code type of
ANC packets.
ATC-VITC Enable
Select this check box to enable or disable the Ancillary Vertical Interval time cod e
type of ANC packets.
30 DROP Frame Enable
Select this check box to enable or disable the Drop Frame mode for the 30 frame
per second time code format. This menu item is available only when the frame or
field rate for the current format is 29.97 or 59.94.