KGP-920
Chapter 11
Technical Reference
11.1 Digital Interface (IEC 61162-1 second edition)
11.1.1 Input data format (DATA 2 port)
RTCM SC104 Ver.2.0 (DGPS)
11.1.2 Output data format (DATA / DATA 2 port)
Data per one byte is as follows:
Parity bit: none
1 bit Logic 0
1 bit
Start bit D0 D1 D2 D3 D4 D5 D6 D7 Stop bit
Data bit (ASCII code)
Logic 0
Logic 1
11.1.3 Output data specification
Baud
rate
Output
level
Output
current
Sentence
Update
rate
4800
RS422
20mA max
AAM, APB, BOD, BWC, DCN, DTM,
GBS
,
GGA
, GLC,
GLL
,
GNS, GSA, GSV, MSS, RMB, RMC, RTE,
VTG
, WPL, XTE,
ZDA
NOTE:
The sentences of bold character are set in 1 second
cycle during initial setup.
Any of 1 to
99sec
11.1.4 Output sentence
Description
Contents of data field
Waypoint arrival alarm
GPAAM
$ GP AAM, A, A, x.x, N, c--c*hh <CR><LF>
Sentence type
Waypoint ID
Units of radius, nautical miles
Arrival circle radius
A = Perpendicular passed at waypoint
V = Not passed
A = Arrival circle entered
V = Not entered
Talker device
Start of sentence
93121662-00
11-1
