Instruction manual

Page 98 Z-12 Real-Time Sensor Operation and Reference Manual
Example:
$GPBWC.015454.00,0000.000,N,00000.0000,E,069.00,T,84,73,M,999.999,N,001
NMEA Decimal Almanac Message
$PASHS,NME,DAL
This message displays the NMEA almanac message in DAL format. The structure is:
$PASHS,NME,DAL,ss,hhh,e.eeeeeeeE±99,ttttttt,i.iiiiiiiE±99,±a.aaaaaaaE±99,
±m.mmmmmmmE±99,±c,cccccccE±99, c.cccccccE±99, www
where the fields are as defined in Table 4.43.
$GPDAL
A typical response message is shown in the following example.
Example:
ddd.ddd Distance (N for nautical miles) 0 through 999.999
ppp Waypoint identifier 3-character string
Table 4.43: NMEA DAL Structure
Field Description
ss Satellite PRN number 1 through 32
hhh Satellite health 0 through 255
e.eeeeeeeE±99 Eccentricity 9.9999999E±99
ttttttt Reference time for orbit 0 through 9999999 seconds
i.iiiiiiiE±99 Inclination angle 0 through 9.9999999E±99 semicircles
±a.aaaaaaaE±99 Omegadot, rate of right ascension ±9.9999999E±99 semicircles/sec
r.rrrrrrrE±99 Roota, square root of semi-major axis 0 through 9.9999999E±99 meters
1/2
±l.lllllllE±99 Omega0, longitude of right ascension node ±9.9999999±99
±a.aaaaaaaE±99 Omega, argument of perigee ±9.9999999±99 semicircles
±m.mmmmmmmE±99 M
0
mean anomaly at reference time ±9.9999999E±99
±c,cccccccE±99 af
0
clock parameter ±9.9999999E±99 seconds
c.cccccccE±99 af
1
clock parameter 0 through 9.9999999E±99 seconds/second
www GPS week number wn 3 digits
Table 4.42: BWC Structure (continued)
Field Description