Output Sentence Type 2 - Garmin GTN 635 Installation Manual

B.1.4 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)
GTN 625/635/650 TSO Installation Manual
190-01004-02
Page B-3
Rev. C