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81Northstar Explorer 657 Installation and Operation Manual
Yellow
GPS antenna (optional)
SmartCraft™ gateway
18-8 Installation: SmartCraft™
If the boat has one or two SmartCraft™ capable
Mercury petrol/gasoline engines, connect the
657 to the SmartCraft™ engines with an optional
SmartCraft™ gateway. The display unit can display
engine data and trim and can control troll speed.
Note:
Fit a single gateway for single engines and a
dual gateway for dual engines.
SmartCraft™ engines have fuel flow sensors,
therefore Northstar fuel sensors are not
required as well.
An optional GPS/fuel splitter cable is required.
If the fuel tank does not have SmartCraft™
level sensors, wire for auto power (see section
18-4).
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GPS/fuel AIS cable
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Enter the SmartCraft™ setup data. For information
on installing, setting up and using SmartCraft™,
see the SmartCraft™ Gateways Installation and
Operation Manual.
18-9 Installation: Other NavBus instruments
NavBus is Northstar’s system for connecting
instruments together to interchange data
and share transducers. When instruments are
connected by NavBus:
If the units, alarms or calibration are changed
in one instrument, then the values will
automatically change in all other instruments
of the same type.
Each instrument can be assigned to a group
of instruments. If the backlight is changed in
an instrument in group 1, 2, 3 or 4 then the
backlight will automatically change in the
other instruments in the same group.
If the backlight is changed in an instrument
in group 0 then no other instruments are
affected.
If an alarm sounds, mute it by clearing the
alarm on any instrument which can display
that alarm.
NavBus and the 657
The 657 can:
Display wind speed and direction from an
optional Northstar Wind instrument.
Receive and display depth from an optional
Northstar depth instrument.
Receive and display boat speed and water
temperature from a paddlewheel sensor on an
optional Speed instrument.
Receive data from an optional Northstar VHF
radio (with NavBus functionality). The 657 can
display:
Baro: barometric pressure
Baro history: barometer history
Weather: a predication, based on changes in
barometric pressure
Fish forecaster: a prediction based on
changes in barometric pressure
DSC/Buddy Track: (see section 16)
Receive data from an optional GPS or
GPS/DGPS source.
Send data to optional Northstar instruments,
for example to a repeater.