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Copernicus GPS Receiver 239
NMEA 0183 C
TF - Receiver Status and Position Fix
This sentence may be issued by the user to get receiver status and position fix.
The Query sentence format is:
$PTNLQTF*hh<CR><LF>
The Response to query sentence format is:
$PTNLaTF,b,c,xxxxxx,xx,x,llll.lllll,d,yyyyy.yyyyy,
e,xxxxx,x.x,x.x,x.x*hh<CR><LF>
Table C.30 Receiver Status and Position Fix
Field Description
a Mode (Q = query; R = Response)
b BBRAM status on startup (A = valid; V = invalid)
c Almanac completion status (A = complete; V = incomplete)
xxxxxx GPS time of week (in seconds)
xx Number of satellites in use, 00 - 12, may be different from
the number in view.
x Position fix source (0 = no fix; 2 = 2D fix; 3 = 3D fix)
llll.lllll Latitude of the current position fix
dN | S
yyyyy.yyyyy Longitude of the current position fix
eE | W
xxxxx Antenna altitude re: mean-sea-level (MSL geoid, meters)
x.x 'East' component of ENU velocity (m/s)
x.x 'North' component of ENU velocity (m/s)
x.x 'Up' component of ENU velocity (m/s)