Screen 2 - Navigation Information; Navigation Information - ashtech ZY-12 Information Supplement

Screen 2 - Navigation Information

Based on information received from the GPS satellites, the receiver computes
and displays on Screen 2 various components of position. This is a display-only
screen, you cannot enter data. Screen 2 consists of two pages (Figure 3.3 and
Figure 3.4). Table 3.4 describes the parameters shown on page 1.
Parameter
WGS-84 Indicates the datum of the displayed position. The default is WGS-84.
Other datums can be selected in Screen 4, Datum.
02550 Position counter that increments with every half-second update. The
display changes to OLD when the position data is more than 10 seconds
old. When count restarts, the counter begins from last count.
00:15:36 Displays Greenwich Mean Time (GMT) or GPS time (GPS).
LAT Computed latitude is reported in degrees and minutes to 5 decimal places
with N for north and S for south.
LON Computed longitude is reported in degrees and minutes to 5 decimal
places with E for east and W for west.
ALT Altitude is the ellipsoidal height, in meters.
COG COG (course over ground) is the heading in degrees. The default unit is in
true degrees (Tr). Magnetic mode can be selected in Screen 6.
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Figure 3.3. Screen 2 - Page 1
Table 3.4. Screen 2 - Page 1 Parameters
Description
ZY-12 GPS Receiver