Arbiter Systems 1088A, Operation Manual

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98 Startup and Basic Operation
10.4.5 Daylight Saving/Summer Time
The Daylight Saving / Summer Time (DST) configuration feature allows expanded settings. The
addition of AUTO allows the user to customize the DST/Summertime settings to match the re-
quirements of locations in either Northern or Southern latitudes. For setup information through
the front–panel interface, please see Section 6.3.1.
The DST/Summertime configuration can be changed through the serial port or through the front
panel keypad. For setup information through the RS-232C port, please see Section 9.2.4.
10.5 Position Display Modes
When the clock is first powered ON and acquiring satellites, the only position information available
is the previous position, stored in the clocks setup EEPROM. This position information reflects the
location of the receiver as determined by the last position while locked to at least four satellites.
Displayed position will be based on the most recent position fix.
Press the POSITION key to access longitude, latitude, and elevation data values. By repeatedly
pressing the POSITION key the display will continuously scroll through these values. If pressed
prior to acquisition of enough satellites to accurately determine and update position data, these
numbers will reflect the receiver’s power-on defaults.
Synchronization to a minimum of four satellites is necessary for precise determination of longitude,
latitude, and elevation. When meeting this minimum satellite lock requirement, POSITION values
will accurately correspond to the present antenna location.
10.5.1 Longitude Display
ANTENNA LONGITUDE
XXX
◦
XX’ XX.XXX” W*
Where:
*W = WEST, or E = EAST
10.5.2 Latitude Display
ANTENNA LATITUDE
XX
◦
XX’ XX.XXX” N*
Where:
*N = NORTH, or S = SOUTH
10.5.3 Elevation Display
ANTENNA ELEVATION
XXXXX.XX m WGS-84
Where the elevation is displayed referenced to the WGS-84 datum.