8120
Installation and Operation Manual
67
Use this feature when the Instrument is
connected to other NAVMAN instruments
through NavBus or any compatible NMEA
instrument.
Press
MENU
once or more until the
Setup
menu is displayed, then select
Comms
:
NMEA out
NMEA is generally used with third party
instruments (see section 18-12). Select this to
transmit NMEA sentences, for example to an
autopilot.
NMEA data
Use this to specify which NMEA sentences
will be transmitted (see section 18-12 and
Appendix A).
Note:
that the units for wind speed are the
speed units.
Pressure
Requires SmartCraft: kPa or psi
Baro (Barometric pressure)
Requires a Navman VHF receiver with
barometer connected by NavBus: InHg or mB.
17-10 Setup > Comms
Lat/lon dps
Select the number of decimal points used for
latitude and longitude transmitted in NMEA
sentences.
NavBus
NavBus is the preferred method for
connecting the Instrument to other NAVMAN
instruments. Select this if the instruments are
connected using NavBus.
NavBus Group
Use this when a group of NAVMAN
instruments are connected together using
NavBus, to specify a group of instruments
for backlighting, if required. Then, if the
backlight setting on one instrument in the
group is adjusted, the other instruments
change automatically. Otherwise, select
0
.
See section 18-11.
17-11 Setup > Calibrate
Press
MENU
once or more until the
Setup
menu is displayed, then select
Calibrate
:
Speed
This calibrates the speed from a paddlewheel
sensor connected to the Instrument.
Calibration may be required because different
hull shapes have different flow characteristics.
Obtain an accurate measurement of the
boat’s speed from a GPS receiver; or by
following another boat travelling at a known
speed; or by making a timed run over a
known distance.
