NorthStar 972 Installation Manual page 29

The devices interfacing with the 972 may have special requirements; check their installation
instructions. The factory settings are appropriate for most devices, but the following are available for
special circumstances.
Table 10: Setup options for the NMEA port
Setting
OUTPUT FORMAT
(see below)
NMEA 0183 TALKER ID
(see page 26)
NMEA 0183 LL PRECISION
(see page 27)
OUTPUT RATE
(see page 27)
NMEA 0183 WAYPT ID AS
(see page 27)
NMEA 0183 CHECKSUMS
(see page 28)
OUTPUT DATUM
(see page 28)
Choosing the output format
The 972 outputs navigation data in any of several standard formats as required by the receiving, or
"listener," device. The
Output format
• None turns the outputs off for when the 972 isn't connected to an external device.
• NMEA 0183 Version 2.1 is a general-purpose interface output format used by most
autopilots, radars, plotters, and other equipment. (NMEA 0183 Version 1.5
972 Installation Manual, Rev. B
Choices
For either port 1 or port 2, choose NONE or 0183 V2.1
choose GP, LC, or II, to make the 972 look like a GPS
receiver, Loran-C receiver, or an "integrated
instrument"
choose hundredths of minutes, thousandths of
minutes, or ten-thousandths of minutes
choose 1 to 999 seconds for the interval at which
data is sent to the external device
choose NAME or NUMBER for the identifier of
waypoints sent to the external device
choose ON or OFF for compatibility with some older
devices
choose from a list of datums to apply to your lat/lon
coordinates, if necessary (The factory default datum is
WGS-84)
option provides the following choices:
SECTION SIX: Interfacing the 972 system
Page 25