90 DG14 and DG16 Board & Sensor Reference Manual
The query command message format is as follows:
$PASHQ,xxx,<optional query parameter>*hh<Enter>
Table 6.2 contains descriptions of the query command elements.
The query command $PASHQ,CRR instructs the DG16 to output a response
message indicating the currently selected code correlation mode:
$PASHR,CRR,E*5E
The query command $PASHQ,CR<Enter> is incomplete, and causes the DG16 to
flag it as an invalid message by outputting the NAK response.
Table 6.3 contains a list of the set and query commands falling into the category of
receiver commands. The commands are listed alphabetically by function, and then
alphabetically within each function. The commands are described in detail in the
pages following Table 6.3.
Table 6.2. Query Command Structure
Field Description
$ NMEA message start character
PASHQ Ashtech header for query messages.
xxx Message identifier.
<optional query parameter> Designates the data port from which the query response
message is to be sent.
* Checksum delimiter.
hh Hexadecimal checksum value (checksum is optional).
Table 6.3. Receiver Commands
Function Command Description Default Page
Antenna
Position
$PASHS,ALT Set ellipsoidal height of antenna 0.00 m 96
$PASHS,ANH Set antenna slant height — 96
$PASHQ,ANH Query antenna slant height — 98
$PASHS,ANT Set antenna offset parameter — 97
$PASHQ,ANT Query antenna offset parameters — 98
$PASHS,POS Set base station reference position — 140
$PASHQ,POS Query current position — 140
$PASHS,POS,CUR Set current position as base station
reference position
— 140
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