ashtech HDS800, Reference Manual

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502
Query Command Library
Relevant Set
Command
$PASHS,HDB
HDT: True Heading
Function
This command is used to output an HDT message (last
computed true heading in degrees).
Command Format
Syntax
$PASHQ,HDT[*cc]
Response Format
Syntax
$GPHDT,f1,T*cc
Parameters
Comments
• When baseline parameters are output in time-tagged
mode ($PASHS,VEC,TT), the HDT message is generated
only for those epochs for which reference data are
available. In fast mode ($PASHS,VEC,FST), the HDT
message will be generated for each receiver epoch using
additional extrapolation algorithms.
Example
$PASHQ,HDT
$GPHDT,121.2,T*35
See Also
$PASHS,NME
Automatic Output
of HDT Messages
This is a reminder on how to output HDT messages at regular
intervals of time: Use the $PASHS,NME command with the
syntax below:
$PASHS,NME,HDT,<port_ID>,ON,<Rate>
For more details on the $PASHS,NME command, refer to the
Set Command Library Chapter.
Parameter Description Range
f1,T
Last computed heading value, in degrees
“T” for “True”.
0-359.9°
*cc Optional checksum *00-*FF