User's Manual Part 3

Screen Service SDT 501 UB-C ARK 1-T Operations
May, 2010 v 1.0 Page 3 - 91
Table 13.
GPS window
Box
Parameter/
Control
Description Admitted Ranges / Values
Satellite
#Number of
Visible sat
Number of visible GPS satellites indicator.
Satellite
#Number of
Tracked sat
Number of tracked GPS satellites indicator.
Satellite Alarm
GPS alarm status indicator. This alarm is a logic OR between the GPS alarms (refer to
Alarms
paragraph).
• Red: Alarm on
• Grey: Alarm off
Satellite Data valid Valid satellite signal receiving status indicator.
• Green: Valid
• Grey: Not valid
Position Latitude (°) Site latitude expressed in degrees.
Position Longitude (°) Site longitude expressed in degrees.
Date & Time UTC Time
Current time indicator.
Each GPS satellite has an atomic clock and continually transmits messages containing the
current time and date at the start of the message sent by the GPS itself.
Date & Time UTC Date
Current date indicator.
Each GPS satellite has an atomic clock and continually transmits messages containing the
current time and date at the start of the message send by the GPS itself.