101
Commands
$PASHQ,STB,c1
The associated query command is $PASHQ,STB,x, where x is port A or B. If a port
is not specified, the receiver sends the response to the current port.
$PASHR,STB
The receiver response message is in the format:
$PASHR,STB,xxxx,±yyy.yyyy,a*cc
Table 4.43 defines the STB response structure:
SUI: Satellite Usage Indicator
$PASHS,SUI, x
This command allows you to enable or disable the satellite usage indicator, where
x is ON or OFF.
If $PASHS,SUI, OFF is sent the usagge indicator in the SAT message will be U for
used or - for not used. If $PASHS,SUI,ON is sent the usagge indicator in the SAT
message will be U for used or one of the letters listed in Table 4.44 in the SAT
column.
Table 4.43. $PASHR,STB Response Structure
Field Description
xxxx Period. Range from 0.05 to 99.95
±yyy.yyyy Offset, Range from -999.9999 to +999.9999
a Edge, R = rising edge or F = falling edge
cc Checksum
Table 4.44. MCA Good/Bad Flags and SAT Messages When SUI is ON
MCA good/
bad Flag
SAT Description
24 U Used and position computed
23 U Used and position not computed
22 - RESERVED
21 M Satellite NOT used because of low elevation
20 S Satellite NOT used because the pseudorange is not settled (transient is not over)
19 H Satellite NOT used because marked 'unhealthy' in ephemeris
G12RevD.book Page 101 Tuesday, April 2, 2002 4:33 PM
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