ashtech DG14, Справочное руководство

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NMEA Commands 285
NMEA Commands
ZDA: Time and Date
$PASHS,NME,ZDA,x,c,[f]
This command enables or disables the time and date message or port x, where x
is the output port, c is ON or OFF, and f is the optional message output rate ranging
from 0.05 to 999 seconds depending on the measurement update rate option
installed.
The DG16 does not output this message unless it computes a position.
If the command is set without a period, the DG16 uses the period set by the
$PASHS,NME,PER command If the $PASHS,NME,PER command is issued after
this message period has been set, the period resets to the PER setting.
Example
Enter the following command to disable ZDA message on port A.
$PASHS,NME,ZDA,A,OFF
$PASHQ,ZDA,[c1]
This command queries the ZDA message, where c1 is the optional port designator
for the output of the response. If a port is not specified, the receiver sends the
response to the current port.
$GPZDA
This message is not output until the receiver has locked on at least one satellite.
The ZDA message contains UTC time, the current date, and offset values for
converting UTC time to local time. The message is output in the format:
07 Too few satellites for 3D solution No navigation solution in 3D mode with 3 or fewer
satellites.
08 No 3D solution - PDOP mask
exceeded No navigation solution possible in 3D mode because
of bad PDOP.
09 Too few satellites for 2D solution No navigation solution in 2D mode with 2 or fewer
satellites.
10 No 2D solution - PDOP mask
exceeded No navigation solution possible in 2D mode because
of bad PDOP.
11 Time only - No Solution No satellites above mask angle.
12 Solution valid. A valid solution is now being generated.
Table 8.57. $PASHR,XMG Exception Number Descriptions (Continued)
Exception
Number (d1)
Description Meaning