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The time displayed in the TTT message depends upon the selected constellation. If SYS=MIX, the
time depends upon the setting of the TSC parameter. If SYS=GPS, the time is GPS. IF SYS=GLO,
the time is UTC + 3 hours.
Table 6.84 outlines the TTT response message structure.
Example: Enable TTT event marker on port A
Table 6.85 outlines the example TTT response message.
VTG: Velocity/Course Message
$PASHS,NME,VTG,x,c
Enable/disable the velocity/course message on port x, where x is the output port, and
c is ON or OFF. This message is not output unless position is computed.
Example: Enable VTG message or port B
$PASHQ,VTG,x
The associated query command is $PASHQ,VTG,x where x is the optional output
port. This message does not output unless position is computed.
172
Table 6.84: TTT Message Structure
Field
d1
Day of GPS week, 1 to 7, where Sunday = 1
m1
Time in hours, minutes, seconds (hh:mm:ss.sssssss)
Set: $PASHS,NME,TTT,A,ON
Typical Response: $PASHR,TTT,6,20:41:02.0000000*OD
Table 6.85: Example TTT Response Message
Item
$PASHR,TTT
6
20:41:02.000000 0
OD
$PASHS,NME,VTG,B,ON
Description
Description
Header
Day of week (Friday)
Time
Message checksum in hexadecimal
GG Surveyor GPS+GLONASS Reference Manual
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