GTD-110/150
Chapter 10
Technical Reference
93151542-00
10-5
10.2 Details of output serial data sentence
Sentence name: NMEA-0183 Ver. 2.
10.2.1 Output data format
Data per one byte is as follows:
10.2.2 Output data specification
Baud rate
Output level
Output
current
Sentence
Update rate
4800
TTL
5mA max
APB+GGA+GLL+VTG+XTE+ZDA+GTD 1
second
10.2.3 Details of output sentences
Name &
Version
Data name
APB
Heading/Track controller (Autopilot) (This sentence is output only when waypoint
is set up)
Ver.1.5
1 bit: Logic 0
1 bit or more
Data bit (ASCII code)
Logic 0
(+4V or more)
Logic 1
(+0.5V or more)
Start bit D0 D1 D2 D3 D4 D5 D6 D7 Stop bit
Parity bit: none
Checksum
XXX.X, X, *hh <CR> <LF>
$ GP APB, X, X, XX.X, X, N, X, X, XXX.X, X, XXX.XX, XXX.X, X,
XTE units, nautical miles
Direction to steer, L/R
M = Magnetic bearing
T = True bearing
Heading to steer to destination waypoint
Destination waypoint ID
M = Magnetic bearing
T= True bearing
Bearing origin to destination
Status A = Perpendicular passed at waypoint
V = Perpendicular not entered waypoint
Magnitude of XTE (Cross Track Error)
Status indicator fixed to
Ａ
Start of sentence
Talker device
Sentence
name
Status indicator fixed to
Ａ
Status A = Arrival circle entered
V = Arrival circle not entered
Bearing, present position to destination
M = Magnetic bearing
T = True bearing