- Throughout the European Union (EU), Summer Time begins and ends at 1 A.M.
UTC. It starts the last Sunday in March, and ends the last Sunday in October. In
the EU, all time zones change at the same moment.
• F69 – Time Mode: Select the type of time output on the front panel display, F8, F9,
and F90. The four choices are as follows:
- UTC (Coordinated Universal Time) differs from GPS Time by the addition of
leap-second corrections to compensate for variations in the earth’s rotation.
- GPS time is derived directly from the GPS constellation and doesn’t contain any
leap-second adjustments or other GPS-to-UTC corrections.
- Standard Time is UTC plus a time zone offset. For example, Pacific Standard
Time is UTC minus 8 hours.
- Local Time is UTC with a time zone adjustment and a daylight saving time
adjustment.
Verifying Antenna Installation
After completing the above steps, use the keypad/display to verify the following:
• In F119 – GPS Receiver Configuration (manual pg.101), after approximately 20
minutes of operation, check that GPS STATUS is LOCKED and GPS ANTENNA is
OK.
• In F73 – Alarm Control / Status (manual, pg. 61), check that the GPS is OK and is
ALARM ENABLED. Clear any alarm latches if present after the instrument has
locked.
• Press the STATUS key. “LOCKED GPS” should appear on the front panel display
without an asterisk. If an asterisk appears, it means that a reference source is not
available.
To troubleshoot a problematic Antenna installation, recheck the physical location of the
antenna, the cabling, and the configuration settings described in this manual.
Sales and Customer Assistance
Symmetricom's Customer Assistance Centers are a centralized resource to han-
dle all of your customer needs.
Customer Assistance Center Telephone Numbers:
l Worldwide (Main Number): 1-408-428-7907
l USA, Canada, Latin America including Caribbean, Pacific Rim including
Asia, Australia and New Zealand: 1-408-428-7907
l USA toll-free: 1-888-367-7966 (1-888-FOR-SYMM)
l Europe, Middle East & Africa: 49 700 32886435
Page 4 05/09/2010 File Name 098-00212-000_RevA.pdf P/N 098-00212-000
To Next Page
Loading...
Need help?
General
