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SRG-4500 User Guide (v7.0) Front Panel Menu System • 67
When a GPS solution has been found, the last line changes to report that the GPS system is actively locking to the
received satellites (e.g. the message
Acquiring GPS Lock
displays).
When a GPS solution has been found and locked, the current time and date are displayed as received from GPS.
Also displayed are the number of detected satellite vehicles (SVs in View), and the number of satellites the GPS
system has locked to (SVs in Fix). The last line reports the lock status of the GPS system. GPS periodically
provides time synchronization with the SRG-4500, which maintains the count between the synchronization events
by counting field or frame pulses.
Figure 7.13 GPS DateTime (UTC) Menu
If the SRG-4500 is set for a Genlock Mode other than one of the GPS options, the current time and date are
displayed as received from GPS. The last line of the menu reports that the selected Genlock Mode is not associated
with the GPS system.
NTP DateTime (UTC)
The menu for NTP DateTime (UTC) is for information only - there are no editable fields. If the NTP option is
enabled, the status information that the menu reports will depend on the configuration settings made in the NTP
sub-menu (-System Setup | Network), e.g., whether the NTP System is turned off or whether a solution is being
searched for.
When an NTP solution has been found, the current time and date are displayed from the user-defined NTP server.
NTP periodically provides time synchronization with the SRG-4500, which maintains the count between the
synchronization events by counting field or frame pulses.
If the SRG-4500 is set for a Genlock Mode other than NTP, the current time and date are displayed as received from
NTP. The last line of the menu reports that the selected Genlock Mode is not associated with the NTP system.
Figure 7.14 NTP DateTime (UTC) Menu
If the menu line Daylight Saving in the UTC DateTime menu is set to User Defined, the time and date fields of
these menus can be edited. If the menu line Daylight Saving is set to Off or Automatic, editing is disabled.
The menus for Summer DST Event and Winter DST Event indicate the time and date for the next change in
daylight saving time. At the indicated time and date, an hour will be added to or subtracted from SPG Time. For
some countries these dates are automated. The dates of a change to or from daylight saving time are dictated well in
advance, and by using the Country Code in the UTC DateTime menu, these dates are automatically implemented.
As an example: EU Daylight Saving.
xLocked to GPS
Weekday Date Month Year
Running Time (UTC)
SVs in View = XX
=
GPS Solution found:
hh:mm:ss:ff
in Fix = xx
Locked to Video
Weekday Date Month Year
Running Time
-NTP time Uncertainty
=
=
tLocked to NTP
hh:mm:ss:ff
nnnnms