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7 rre data message, Table 6-8 rmc data message defined, Table 6-9 rre data message defined – TeeJet RX 400p User Manual

Page 130

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RX 400p

98-05044 6-8
R1

Table 6-8 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

Carriage return and line feed

6.5.7

RRE Data Message

The RRE message contains the satellite range residuals and estimated position error.
Table 6-9 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

Table 6-9 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

Carriage return and line feed