Garmin GTN 625 Installation Manual - page 191
190-01004-02
GTN 625/635/650 TSO Installation Manual
Rev. F
Page B-3
B.1.4 Aviation Output Sentence Type 2
The GTN Type 2 output sentence has the following general format:
id
- item designator (3 ASCII characters)
seq
- sequence number (1 binary byte)
wpt
- waypoint identifier (5 ASCII characters)
lat
- waypoint latitude (3 binary bytes)
lon
- waypoint longitude (4 binary bytes)
mvar
- magnetic variation at waypoint (2 binary bytes)
CR
- ASCII carriage return character (0D hex)
LF
- ASCII line feed character (0A hex)
Each waypoint in the route being navigated by the GTN has a Type 2 sentence output by the GTN
approximately once every second.
If no route is being navigated by the GTN (i.e., the active route is empty), the following Type 2 sentence is
output approximately once every second:
id
- item designator (3 ASCII characters; route sequence number is "01")
seq
- sequence number (1 binary byte; last waypoint flag is set; route sequence number is 1)
CR
- ASCII carriage return character (0D hex)
LF
- ASCII line feed character (0A hex)