TeeJet RX 400p - Manual (Page 131)

RX 400p
6-9 98-05044
R1
6.5.8 VTG Data Message
The VTG message contains velocity and course information. Table 6-10 breaks
down the VTG data message into its components. This message has the following
format:
$GPVTG,ttt,c,ttt,c,ggg.gg,u,ggg,gg,u*cc
Table 6-10 VTG Data Message Defined
Field Description
ttt True course over ground, ttt = 000 to 359, in degrees
c True course over ground indicator, c = T always
ttt Magnetic course over ground, ttt = 000 to 359, in degrees (output with magnetic model
option only)
c Magnetic course over ground Indicator, always c = M
ggg.gg Speed over ground, 000 to 999 knots
u Speed over ground units, u = N = Nautical mile/h
ggg.gg Speed over ground, 000 to 999 km/h
u Speed over ground units, u = K = kilometer/h
*cc Checksum
Carriage return and line feed
6.5.9 ZDA Data Message
The ZDA message contains Universal Time information. Table 6-11 breaks down
the ZDA data message into its components. This message has the following format:
$GPZDA,hhmmss.ss,dd,mm,yyyy,xx,yy*cc