NorthStar Navigation EXPLORER 435 - Manual (Page 6)

Northstar Explorer 435/438 Installation and Operation Manual 6
1 Introduction
Congratulations on choosing a Northstar fishfinder.
For maximum benefit, please read this manual
carefully before installation and use.
This manual describes how to install and set up
the Explorer 435 or Explorer 438. Refer to seperate
Transducer Installation Instructions supplied with
the transducer.
The Explorer 435 and Explorer 438 are high quality
fishfinders that are supplied with a transducer.
Both use TFT (Thin Film Transistor) technology
to provide a color display for easy daylight
viewing. The LED backlight can be dimmed for
night fishing. The bracket mounting option also
allows the fishfinder to be tilted and swivelled for
optimum viewing.
The colors on the sonar displays are cus-
tomizable, with a choice of four 16 color palettes
and one 8 color palette. The colors represent
different signal strengths, making the sonar
displays easy to interpret.
This capability, combined with a variable power
output of up to 200 W RMS, ensures that the
Explorer 435 and Explorer 438 operate effectively
in shallow and deep water.
The Explorer 435 and Explorer 438 can detect
the bottom to a depth of 600 feet (180 metres)
depending on the clarity of the water and the
type of transducer used.
The Northstar fishfinder can be used to find fish,
to locate features on the bottom such as reefs or
wrecks and to help recognize favourite fishing
spots from the bottom profile.
The Northstar fishfinder can also assist with
navigation by providing depth information to
1-1 Benefits of the Explorer 435 and Explorer 438
Important
It is vital to the performance of the fishfinder
that the transducer is installed in the best
location. Please follow the installation
instructions very carefully.
help identify the depth contours marked on
charts.
With the optional fuel kit, the Explorer 438 also
becomes a sophisticated and easy-to-use
fuel computer.
All of the Northstar 400 Series fishfinders use
proprietary SBN Technology for sonar processing
to improve Signal enhancement, Bottom
recognition and Noise rejection.
SBN Technology uses digital adaptive filter
algorithms to enhance all returned signals. At the
same time, SBN Technology uses active noise
control to reject interference, which can often be
mistaken by fishfinders for true returns.
Using SBN Technology, the fishfinder analyses the
reflections from each pulse, filters false returns
and displays what is in the water under the boat.
See section 4-1 Interpreting the display, for more
information.
This manual also explains how to operate the
Explorer 435 and Explorer 438 effectively and
gives troubleshooting and performance tips.
CAUTION
IMPORTANT NOTE ON USE. While any
fishfinder can be used as an aid to navigation,
accuracy can be limited by many factors,
including the location of the transducer. It is
the user’s responsibility to ensure the Northstar
fishfinder is installed and used correctly.