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83Northstar Explorer 657 Installation and Operation Manual
Setup and test
1 Put a blanking cap on any unused connector
on the back of the display unit. Ensure all
connectors are plugged in and the display
unit is in place.
2 If the display unit is bracket mounted, adjust
tilt and rotation for best viewing and hand
tighten the knob.
3 Insert any required C-MAP chart card (see
section 1-3).
4 Turn the instrument on (see section 2-2).
When the 657 is turned on for the first time, it
displays an installation menu:
i Select the language to use.
ii Change the data if necessary (see section
2-1)
iii When the setup data is correct, press
.
This data can be changed later
(see section 17).
18-11 Installation: Setup and test
5 Enter setup data to set up the 657 to your
requirements and to set up any optional
sensors or instruments (see section 17).
6 At the satellite display, check that it picks
up GPS satellites. Wait for the GPS receiver
to start up and the fix type to change from
‘Acquiring’ to ‘GPS fix’. This should take less
than two minutes (see section 7).
7 Go on a test run to check that the navigation
equipment works correctly, particularly when
a radio trans mitter or radar is used.