136 G12 OEM Board & Sensor Reference Manual
Table 4.67 defines the data string format.
SIT: Site Name for Observation Session
$PASHS,SIT,s1
This command allows you to set a site name for your observation session, where
s1 is a user-defined string of 4 characters. The site name is captured in the PBN
message; if a site name is not defined by the user, this part of the PBN message
is occupied by four question marks. You can view the current site name by entering
the query command $PASHQ,RAW and checking the SIT field.
Examples
Enter the following command to set site name to 0001:
Table 4.67. $PASHR,SAL Data String
Field Bytes Content
short prn 2 Satellite PRN number -1
short health 2 Satellite health
float e 4 Eccentricity
long toa 4 Reference time for orbit (sec)
float i0 4 Inclination angle (semicircles)
float omegadot 4 Rate of right ascension (semicircles/sec)
double roota 8 Square root of semi-major axis (meters 1/2)
double omega0 8 Longitude of ascending node (semicircles)
double omega 8 Argument of perigee (semicircles)
double m0 8 Mean anomaly at reference time (semicircles)
float af0 4 Clock correction (sec)
float af1 4 Clock correction (sec/sec)
short wna 2 Almanac week number
short wn 2 Week number
long tow 4 Seconds of GPS week
checksum 2 The checksum is computed by breaking the
structure into 34 unsigned shorts, adding them
together, and taking the least significant 16 bits of
the result
Total Bytes: 70
G12RevD.book Page 136 Tuesday, April 2, 2002 4:33 PM
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