Garmin Apollo GX60 Comm Installation Manual - page 65
Serial Interface Specifications
Apollo GX50/60/65 Installation Manual
57
Table 6 Moving Map ASCII Navigation Data
ID Data
Format
Length
Description
A
sddmmhh
9
Present
latitude
s =sign: N for north, S for south
dd = degrees
mm = minutes
hh = hundredths of minutes
B
sdddmmhh
10
Present
longitude
s = sign: E for east, W for west
ddd = degrees
mm = minutes
hh = hundredths of minutes
C
ddd
3
Track (magnetic): ddd = degrees
D
ddd
3
Ground speed: ddd = knots
E
ddddd
5
Distance to active waypoint: ddddd = nm x 10
G
sdddd
5
Cross track error:
s = sign: R for right, L for left of course
dddd = distance off course, hundredths of nm
I
dddd
4
Desired track (magnetic):
dddd = degrees x 10
K
ddd[dd]
3 to 5
Active waypoint identifier:
ddd[dd] = ASCII waypoint identifier
L
dddd
4
Bearing to active waypoint (magnetic):
dddd = degrees x 10
Q
sddd
4
Magnetic
variation:
s = sign: E for east, W for west
ddd = degrees x 10
T
---A-----
9
Warnings: The 4th character will be an “A”
when the navigation data is flagged, otherwise,
all characters will be dashed. All other
navigation data will be dashed when it is
flagged.