Garmin GPS 400W Installation Manual page 130

T h e f o l l o w i n g t a b l e d e s c r i b e s t h e T y p e 2 o u t p u t s e n t e n c e i t e m d e s i g n a t o r ( i d ) , s e q u e n c e n u m b e r ( s e q ) ,
w a y p o i n t i d e n t i f i e r ( w p t ) , w a y p o i n t l a t i t u d e ( l a t ) , w a y p o i n t l o n g i t u d e ( l o n ) , a n d m a g n e t i c v a r i a t i o n a t
w a y p o i n t ( m v a r ) f i e l d s .
F i e l d B y t e
i d
s e q
w p t
l a t
l o n
m v a r
P a g e D - 4
R e v . A
F o r m a t
7 6 5 4 3 2 1 0
1
2-3
1
x l a n n n n n
1-5
1
s d d d d d d d
2
x x m m m m m m
3
x h h h h h h h
1
s x x x x x x x
2
d d d d d d d d
3
x x m m m m m m
4
x h h h h h h h
1-2
D e s c r i p t i o n
ASCII character 'w' (77 hex)
Two ASCII numeric characters representing route
sequence number of waypoint (01 to 31)
x - undefined
l - 1 if last waypoint in route
a - 1 if active to waypoint
nnnnn - route sequence number of waypoint
(unsigned binary)
Destination waypoint identifier (will be blank filled on
right if less than 5 characters in identifier)
s - 0 (north) or 1 (south)
ddddddd - latitude degrees (unsigned binary)
xx - undefined
mmmmmm - latitude minutes (unsigned binary)
x - undefined
hhhhhhh - hundredths of latitude minutes
(unsigned binary)
s - 0 (east) or 1 (west)
xxxxxxx - undefined
dddddddd - longitude degrees (unsigned binary)
xx - undefined
mmmmmm - latitude minutes (unsigned binary)
x - undefined
hhhhhhh - hundredths of latitude minutes
(unsigned binary)
Two's complement binary in 16ths of degrees. Easterly
variation is positive. MSB output first.
4 0 0 W S e r i e s I n s t a l l a t i o n M a n u a l
1 9 0 - 0 0 3 5 6 - 0 2