Programming Manual 12
Table 2-6 GSV Data Message Defined
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
2.6 RMC Data Message
The RMC message contains recommended minimum specific GPS data. Table
2-7 breaks down the RMC data message into its components. This message
has the following format:
$GPRMC,hhmmss.ss,a,ddmm.mmm,n,dddmm.mmm,w,z.z,y.y,ddmmyy
,d.d,v *cc<CR><LF>
Table 2-7 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
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