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12
Connect a NMEA Device
At the customer's request, you can connect a
NMEA device to the TV-Hub, allowing the
antenna to use its GNSS position and heading
data to speed up satellite acquisition. The current
position and heading will also be displayed on
the Home page of the web interface.
NOTE: The antenna system can only use and display
true heading. If only magnetic heading is input, the
TV-Hub will use the current location data to convert
magnetic heading to true heading. Without a built-in
GPS or NMEA GNSS input, the user-entered
location will be used.
Follow these steps to connect a NMEA device to
the TV-Hub, if desired.
NMEA 0183
a. Wire and connect the 2-position terminal
strip connector (supplied in kit) as shown in
Figure 41.
b. Configure the NMEA device to transmit one
or more of the supported NMEA 0183
messages at 4800 baud (see Figure 42).
c. Make sure the data message(s) includes the
checksum, identifiable by a *xx field at the
end of the data sentence (e.g., $HEHDT,123.4,
T*1F). Do not exceed a 10 Hz input rate.
NMEA 2000
a. Connect the TV-Hub to the vessel's
NMEA 2000 CAN network backbone via a
"T" connector, as shown in Figure 41. Be sure
to use a standard drop cable: 5-wire
(4 conductors + shield) twisted pair with
micro-C connectors.
b. Configure the NMEA device to transmit one
or more of the supported NMEA 2000
messages (see Figure 43).
Later, you will select the NMEA source at the
TracVision Setup Wizard (see
System" on page
33).
26
"Set Up the
Figure 41: TV-Hub NMEA Connections
TV-Hub
NMEA
2000
WI-FI
DC IN
10-30V
POWER
MAX CURRENT 10A
CAN Network
Backbone
NMEA 2000 Talker
Figure 42: Supported NMEA 0183 Messages
NMEA 0183 $--xxx
HDG
HDM
HDT
OSD
THS
VHW
RMC
Figure 43: Supported NMEA 2000 Messages
PGN
127250
129029
Optional
NMEA
DSWM
ETHERNET
NMEA 2000
0183
LEN=1
RECEIVER
ANTENNA
NMEA
0183
GROUND
B
A
RESET
1
B
A
OR
NMEA 0183 Talker
Description
Heading, Deviation &
Variation
Heading, Magnetic
Heading, True
Own Ship Data
True Heading & Status
Water Speed and Heading
GNSS Position Data
Description
Vessel Heading
GNSS Position Data
2
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