Tektronix MTG100 - Manual (Page 77)

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3Ć18
MTG100 & MTG300 MPEG Generator User Manual
Beginning of the year (January)
or DSĂModeĂ=ĂOFF
DSĂOut DSĂIn PrecedeĂDSĂOut PrecedeĂDSĂIn
Period of daylight savings time
Figure 3Ć8: Relationship between the daylight savings time parameters in the
STT Item dialog box
Table 3-18 shows the relationship between the parameters in the STT Item dialog
box and the status of the daylight savings fields (DS_status, DS_day_of_month,
and DS_hour) in the STT.
Table 3Ć18: Relationship of DS parameters in the STT Item dialog box to the status
of the daylight savings time fields
Conditions DS_status DS_day_of_month DS_hour
At the beginning of the year (January) or
when DS Mode is set to OFF, daylight
savings time is off.
0 0 0
When the transition into daylight savings
time is DS In minus the day setting of
Precede DS In, the DS_day_of_month
field takes the value of the day setting of
DS In, and the DS_hour field takes the
value of the hour setting of DS In.
0 Day setting of DS In Hour setting
of DS In
When the date and time set in DS In
arrives, daylight savings time is on.
1 0 0
When the transition out of daylight
savings time is DS Out minus the day
setting of Precede DS Out, the
DS_day_of_month field takes the value
of the day setting of DS Out, and the
DS_hour field takes the value of the hour
setting of DS Out.
1 Day setting of
DS Out
Hour setting
of DS Out
When the date and time set in DS Out
arrives, daylight savings time is off.
0 0 0
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