Navman FISH 4500/4600 operation manual Introduction, Benefits of the Fish 4500/4600

1 Introduction

Congratulations on choosing a Navman fish- finder. For maximum benefit, please read this manual carefully before installation and use.

This manual describes how to install and set up the FISH 4500/4600 and the associated dual- frequency transom transducer. (If a through hull transducer is used, refer to the Installation Instructions supplied with that transducer.)

This manual also explains how to operate the FISH 4500/4600 effectively and provides trou- bleshooting information and performance tips.

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.

1-1 Benefits of the FISH 4500/4600

The FISH 4500/4600 is a high quality, dual- frequency sonar fishfinder that is supplied with a dual-frequency transducer. It uses TFT (Thin Film Transistor) technology to provide a color display for easy daylight viewing that 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 customiz- able, with a choice of four 16 color palettes and one 8 color palette. The colors represent differ- ent signal strengths, making the sonar displays easy to interpret.

The dual frequency capability enables the FISH 4500/4600 to operate and display:

•At a high frequency of 200 kHz.

•At a low frequency of 50 kHz.

•Both frequencies side-by-side on a split dis- play.

•Both frequencies combined together into a single display.

This capability, combined with a variable power output of up to 600 W RMS, ensures that the FISH 4500/4600 operates effectively in shallow and deep water.

The FISH 4500/4600 can detect the bottom to a depth of 2000 feet (600 metres) depending on the clarity of the water, the ultrasonic frequency chosen and the type of transducer used.

The Navman 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 Navman fishfinder can also assist with navigation by providing depth information to help identify the depth contours marked on charts. The FISH 4500/4600 is particularly suited to work with the TRACKER 5500/5600 - Navman’s color display GPS chartplotter with worldwide coverage.

The two instruments can be connected together using either NavBus or NMEA, so they can share data.

IMPORTANT NOTE ON USE. While any fishfinder can be used as an aid to navigation, accuracy can be limited by many factors, includ- ing the location of the transducer. It is the user’s responsibility to ensure the Navman fishfinder is installed and used correctly.

With the optional fuel kit, the FISH 4500/4600 also becomes a sophisticated and easy-to-use fuel computer.

All of the Navman 4000 Series fishfinders use new proprietary SBN-IITechnology for sonar processing to improve Signal enhancement, Bottom recognition and Noise rejection.

SBN-IITechnology uses digital adaptive filter algorithms to enhance all returned signals.At the same time, SBN-IITechnology uses active noise control to reject interference, which can often be mistaken by fishfinders for true returns.

Using SBN-IITechnology, the Navman 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.

4 NAVMAN FISH 4500/4600 Installation and Operation Manual