Tektronix MTG100 - Manual (Page 76)

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MTG100 & MTG300 MPEG Generator User Manual
3Ć17
Table 3Ć16: STT Item dialog box parameters (Cont.)
Parameter Description
Precede DS In Sets the number of days until the start of the Daylight Savings time. Refer to
Controlling Daylight Savings Time on page 3Ć17 for more information.
DS In Sets the date and time when Daylight Savings time starts. Refer to
Controlling Daylight Savings Time on page 3Ć17 for more information.
Precede DS Out Sets the number of days until the end of Daylight Savings time. Refer to
Controlling Daylight Savings Time on page 3Ć17 for more information.
DS Out Sets the date and time when Daylight Savings time ends. Refer to
Controlling Daylight Savings Time on page 3Ć17 for more information.
Table 3Ć17: Bezel menu commands for the STT Item dialog box
Command Description
Undo Stress Cancels any setting changes and closes the dialog box.
Keep Stress Enables all setting changes. When you apply setting changes, data output
from the MPEG generator is stopped. You must restart the MPEG generator
output for the setting changes to appear.
The MTG300 MPEG generator provides the capability to change the status of
the three fields in the STT that control daylight savings time: the DS_status,
DS_day_of month, and DS_hour. Using this feature, you can test that the
receiver can switch into or out of daylight savings time at the appropriate local
time. This subsection explains the relationship between the daylight savings time
parameter settings in the STT Item dialog box and the status of the three fields in
the STT.
Table 3-16 describes the DS Mode, Precede DS In, DS In, Precede DS Out, and
DS Out parameters, which control the daylight savings time fields in the STT
Item dialog box. The MPEG generator converts the entered daylight savings time
parameters to seconds when performing calculations. Figure 3-8 shows the
relationship between the daylight savings time parameters.
Controlling Daylight
Savings Time
(MTG300 Only)
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