Table 23: Primary Port Input Sentences; Table 24: Character/Baud Rate - NorthStar 8700 Technical Reference Manual

10.2.1 Input
sentences
Message iden-
tifier
000
001
003
004
005
006
007
MSK
05/01/97 REV H
This section defines the valid input sentences available on the primary
port. Table 23 below contains all the valid input sentence types for the
GPS receivers. Each section that follows provide detailed descriptions of
these sentences.

Table 23: Primary port input sentences

Name
Configure primary port command
Initialization data command
Initiate self-test command
Request output message command
Set output configuration command
Switch to reprogramming mode command
Erase non-volatile memory (NVM)
Command message to radio-beacon board
Configure primary port command ($PMCAG,000)
This message changes the primary-port mode. Once this command is
issued to the GPS receiver, NMEA communications with the GPS receiver
can only be restored by using binary message #110 of Appendix E in the
ALLSTAR OEM CMT-1200 Specifications Rev. H. (To order this document,
call the Northstar sales department.) On power-up, with non-volatile
memory (NVM), the primary port stays in the same mode; without NVM,
the default mode is monitor mode (CMC binary).
Header Contents of data fields
$PMCAG,000, x*hh<CR><LF>
x = Baud rate selection (see Table 24 below)

Table 24: Character/baud rate

Character Baud rate
19200
0
300
1
600
2
1200
3
2400
4
4800
5
Section 10 - NMEA protocols
Maximum sentence
length
(characters)
17
77
15
19
67
20
18
27
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