User's Manual
MDC-7000P/7900P Series Chapter 11 Appendix
0093169006-05E 11-13
Speed
VBW Dual ground/water speed
A*hh<CR><LF>
Ch
ec
k
su
m
Th
ese
fi
e
ld
s are no
t
use
d
S
tatus groun
d
spee
d
,
A
=
V
a
lid
,
V
=
I
nva
lid
T
ransverse groun
d
spee
d
,
k
nots
L
ong
i
tu
di
na
l
groun
d
spee
d
,
k
nots
S
tatus w ater spee
d
,
A
=
V
a
lid
,
I
nva
lid
T
ranverse w aterspee
d
,
k
nots
L
ong
i
tu
di
na
l
w ater spee
d
,
k
nots
N
ote
f
or
IMO
mo
d
e
II
,
IN
,
VD
,
GA
,
GP
,
GL
,
GN
,
SN
,
VM
an
d
VW
are accep
t
e
d
.
VTG Course over ground and ground speed
a*hh<CR><LF>
Chec k s u
m
Mode indicator A/P/D=Valid, E/M/S/N=Invalid
Speed over ground, km/h
Speed over ground, knots
Course over ground, degrees magnetic
Course over ground, degrees true
Note for IMO mode
II, IN, VD, GA, GP, GL, GN, SN, VM and VW are accepted.
VHW Water speed and heading
K*hh<CR><LF>
Chec k s u
m
Speed, km/h
Speed, knots
Heading, degrees magnetic
Heading, degrees true
Note for IMO mode
II, IN, VD, GA, GP, GL, GN, SN, VM and VW are accepted.
x.x,
M
,x.x,N,x.x,$--VHW, x.x,T,
A
,x.x,
$--
VTG, x.x,T,x.x,
M
,x.x,N,x.x,K,
A
,x.x,x.x,
A
,x.x,$--VBW, x.x,x.x,
Set and Drift
VDR Set and drift
N*hh<CR><LF>
Chec k s u
m
Current speed, knots
Direction, degrees magnetic
Direction, degrees true
$-- VDR, x.x,T,x.x,
M
,x.x,