Tektronix SPG8000 Technical Reference page 189

TIME button menu
Press ENTER to synchronize now. Immediately synchronizes the module
timecode with the GPS signal timecode. Select this menu item and press the
ENTER button to initiate the synchronization process.
Scheduled/Disable. Enables or disables the Jam Sync function. Use the left (◄)
or right (►) arrow button to select Scheduled or Disable. When set to Scheduled,
the Jam Sync function will be applied at the time configured using the Scheduled
Time menu item below.
Scheduled Time. Configures the scheduled time for the daily Jam Sync function.
Select this menu item and press the ENTER button to enter the edit mode. Use
the left (◄) or right (►) arrow button to select a digit in the Jam Sync schedule to
change. An underline character appears under the selected digit. The date and
time digits take the following form: HH:MM:SS.
After you select a digit, use the up (▲) or down (▼) arrow button to change
the value of the digit. Repeat for each digit as required. Press the ENTER to
confirm the change.
NOTE. You can use the INPUT TRIGGER setting in the SYSTEM : GPI submenu
to configure pin 4 of the GPI port connector to trigger the instrument to force a
Jam Sync. (See page 147, GPI submenu.)
SPG8000 Technical Reference 177