Gst Data Message; Gsv Data Message; Table 8-10 Gst Data Message Defined; Table 8-11 Gsv Data Message Defined - Geneq SXBlue GPS Reference Manual

8.6.4 GST Data Message

The GST message contains Global Navigation Satellite System (GNSS) pseudorange
error statistics. The table below breaks down the GST message into its components.
This message has the following format:
$GPGST,hhmmss.ss,a.a,b.b,c.c,d.d,e.e,f.f,g.g *cc<CR><LF>

Table 8-10 GST Data Message Defined

Field
hhmmss.ss
a.a
b.b
c.c
d.d
e.e
f.f
g.g
*cc
<CR><LF>

8.6.5 GSV Data Message

The GSV message contains GPS satellite information. Null fields occur where data is
not available due to the number of satellites tracked. The Table below breaks down the
GSV data message into its components. This message has the following format:
$GPGSV,t,m,n,ii,ee,aaa,ss,...ii,ee,aaa,ss,*cc<CR><LF>

Table 8-11 GSV Data Message Defined

SXBlue GPS Reference Manual
UTC time in hours, minutes, seconds of the GPS position
Root mean square (rms) value of the standard deviation of the range inputs to
the navigation process. Range inputs include pseudoranges and differential
GNSS (DGNSS) corrections
Standard deviation of semi-major axis of error ellipse (meters)
Standard deviation of semi-minor axis of error ellipse (meters)
Orientation of semi-major axis of error ellipse (degrees)
Standard deviation of latitude error (meters)
Standard deviation of longitude error (meters)
Standard deviation of altitude error (meters)
Checksum
Carriage return and line feed
Field Description
t Total number of messages
m Message number, m = 1 to 3
n Total number of satellites in view
ii Satellite number
ee Elevation in degrees, ee = 0 to 90
aaa Azimuth (true) in degrees, aaa = 0 to
359
ss SNR (dB) + 30, ss = 0 to 99
*cc Checksum
<CR><LF> Carriage return and line feed
Description
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