Tsc: Set Type Of Time Scale - ashtech GG Surveyor Reference Manual

than the TDOP mask. If TDOP is greater than the TDOP mask, then the most recently
computed time shift is used when the number of satellites is low.
Example: Set GLONASS system time shift DOP mask to 30

TSC: Set Type of Time Scale

$PASHS,TSC,s
Sets the time scale to use for output data, where s is GPS or GLO:
For SYS = GPS, TSC automatically sets to GPS system time scale. For SYS = GLO, TSC
automatically sets to GLO. For SYS = MIX, the default setting of TSC is GPS. The messages affected
are:
$PASHQ,TSC,x
The associated query command is $PASHQ,TSC,x where x is port the optional
output port.
$PASHR,TSC,s
The associated response message is $PASHR,TSC,s where s is GPS or GLO.
UDD: Set User-Defined Datum
$PASHS,UDD,d1,d2,f1,f2,f3,f4,f5,f6,f7,f8
Sets the user-defined datum parameters in the receiver memory, where
Field
d1
d2
f1
f2
f3
f4
110
$PASHS,TDP,30
GPS - use GPS system time scale (default)
GLO - use GLONASS system time scale
NMEA messages (always output UTC time),
Raw data (time tag dependent upon TSC setting),
1 PPS/measurement strobe (time tag dependent upon TSC setting),
Photo pulse (time tag dependent upon TSC setting).
Table 6.31: UDD Structure
Description
Geodetic datum id. Always 0 for
WGS 84
Semi-major axis
Flattening in meters
Translation in x direction
Translation in y direction
Translation in z direction
Range
0
6300000-6400000
290.00000000-
300.00000000
±1000.000
±1000.000
±1000.000
GG Surveyor GPS+GLONASS Reference Manual
Units Default
n/a 0
meters 6378137
meters 298.25722356
meters 0.0
meters 0.0
meters 0.0