Eagle sport 用户指南

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页码 72
50
shown to the right of the “N” is in grid 15, and it’s north of the equator.
Press the up or down arrow keys to highlight the desired position format.
Press the EXIT key to both select the format and erase the position for-
mat menu.
NMEA / DGPS
The AccuMap Sport transmits data through the data por t in the back of
the unit using NMEA 0183 format, version 1.5 or 2.0. This data is used by
other electronic devices such as marine autopilots for position and steer-
ing information.
DGPS on the other hand, is a data input. DGPS is an acronym for Differ-
ential Global Positioning System. Currently, it relies on a system of ground-
based transmitters that send correction signals to small DGPS receivers.
These receivers connect to the AccuMap Sport through the data port.
DGPS gives you more accurate positions than is otherwise possible.
See the sample wiring diagrams on the next page for general wiring pro-
cedures. You’ll need a NDC-1 adapter cable for your AccuMap Sport’s
data port. Read your other product’s owner’s manual for more wiring infor-
mation.
(Note: Connecting power to the AccuMap Sport through the NDC cable
as shown in the diagrams is optional. However, the shield wire must still
be connected to ground.)
Once the cables are wired, turn the AccuMap Sport on, press the menu
key, and select NMEA / DGPS  from the System Setup menu. A screen
similar to the one below appears.
NMEA 0183 OUTPUT
To turn the NMEA output on, move the black box
to the “NMEA 0183 OUTPUT” menu, then press
the right arrow key. If your other equipment works,
then no setup will need to be performed. If your
other equipment doesn’t recognize the NMEA data
being sent by the AccuMap Sport and the wiring is
correct, then you may need to change the NMEA
or the serial communication settings.
Configure NMEA Output
Press the down arrow key until the black box is on the “Configure NMEA
Output” menu, then press the right arrow key. A screen similar to the one
at the top of the next page appears.