CSI Wireless DGPS MAX, Reference Manual

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DGPS MAX Reference Manual
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Table 7-8 RMC Data Message Defined
Field Description
hhmmss.ss UTC time in hours, minutes, seconds of the GPS position
a Status is valid if a = A, status is invalid if a = V
ddmm.mmmmm Latitude in degrees, minutes, and decimal minutes
n S = N or s = S, for North or South latitude
dddmm.mmmmm Longitude in degrees, minutes, and decimal minutes
w S = E or s = W, for East or West longitude
z.z Ground speed in knots
y.y Track made good, referenced to true north
ddmmyy UTC date of position fix in day, month, year
d.d Magnetic Variation in degrees
v Variation sense v = E = East, v = W = West
*cc Checksum
<CR><LF> Carriage return and line feed
7.6.7 RRE Data Message
The RRE message contains the satellite range residuals and estimated
position error. Table 7-9 breaks down the RRE data message into its
components. This message has the following format:
$GPRRE,n,ii,rr…ii,rr,hhh.h,vvv.v *cc<CR><LF>
Table 7-9 RRE Data Message Defined
Field Description
n Number of satellites used in position computation
ii Satellite number
rr Range residual in meters
hhh.h Horizontal position error estimate in meters
vvv.v Vertical position error estimate in meters
*cc Checksum
<CR><LF> Carriage return and line feed