Spectra Precision ProMark 800 Reference Manual - Manual (Page 397)

385
Query Command Library
Parameters
Comments The magnetic table used is the WMM-2005 (published Dec
2004), which is the standard model of the US Department of
Defense (WMM for “World Magnetic Model”).
Example $PASHQ,VTG
$GPVTG,128.00,T,129.92,M,0.17,N,0.31,K,A*2D
Automatic Output
of VTG Messages
This is a reminder on how to output VTG messages at regular
intervals of time: Use the $PASHS,NME command with the
syntax below:
$PASHS,NME,VTG,<port_ID>,ON,<Rate>
For more details on the $PASHS,NME command, refer to the
Set Command Library Chapter.
As an example, the command below will output VTG
messages on port A at a rate of 0.5 second:
$PASHS,NME,VTG,A,ON,0.5
WARN: Warning Messages
Function This command is used to list the possible warning messages
stored in the receiver.
Command Format Syntax
$PASHQ,WARN[*cc]
Parameter Description Range
f1,T
COG (with respect to True North)
T for “True” North: COG orientation
000.00-359.99
f2,M
COG (with respect to Magnetic North)
M for “Magnetic” North: COG orientation
000.00-359.99
f3,N
SOG (Speed Over Ground)
N for “knots”: SOG unit
000.00-999.99
f4,K
SOG (Speed Over Ground)
K for “km/hr”: SOG unit
000.00-999-99
c5
Mode indicator:
• A: Autonomous mode
• D: Differential mode
• N: Data not valid
A, D, N
*cc Checksum *00-*FF