raymarine mfd fishfinder sonar guide

8/13/2019 Raymarine MFD Fishfinder Sonar Guide

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Raymarine MFD Fishfinder Sonar Guide

Raymarine produces a full range of sonars and an array oftransducers. In this guide we explain the differenttechnologies used in Raymarines Sonars helping you select

the right sonar and transducer for your application.

HowSonar works- All Raymarine fishfinders operate using Sonar.Technologies- Digital, CHIRP, DownVision.Frequency and Power- Determines the depth a sonar can reach.Transducers- Selecting the correct transducer.

DownVision- View the world beneath your boat with the photo-like clarity.Built-in DownVision- a68 and a78 come with DownVision in built.Network DownVision- CP100 brings DownVision to a, c, e, and gS Series MFDs

Digital Sonar- Sonar using conventional Dual frequency transducersBuilt in Digital Sonar- Many of Raymarines MFDs have Sonar in built.Network Digital Sonar- CP300 Brings Digital Sonar to a, c, e, and gS Series MFDs

CHIRP Sonar- Built for the offshore angler that demands the best

Network CHIRP Sonar- CP450 Brings CHIRP Sonar to a, c, e, and gS Series MFDs

Warranty- 2-3 year return to base and Onboard warranty available.

How Sonar WorksSonar SOundNavigationAnd Ranging is a technique that uses sound propagation to detect underwater targets.

All Raymarine fishfinders operate using Sonar.A sound wave is produced by a transducer connected to a fishfinder and is sent through the water. Atthe transducer the wave is narrow, however as it penetrates deeper, the sound wave spreads forminga cone shaped beam. When the sound wave encounters something within this beam, it bounces backto the transducer. By measuring the very small amount of time between when the sound wave wassent out and when it bounces back your fishfinder calculates the distance of the object below the boat.If the signal doesnt encounter anything along the way, it reaches the bottom. Soft bottoms like mud

and weeds tend to absorb the signal. Hard bottoms such as rock reflect a stronger signal back.

Technologies
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DownVision, Digital, CHIRP

Digital Sonars use the more conventional Dual frequency transducers producing two cone shapedbeams. The depth of an object is calculated by the time the transmitted pulse takes to return.

CHIRP Sonars use multiple frequency transducers which produce cone shaped beams. It still has apulse, but within that pulse, it uses a range of frequencies. Instead of 50 kHz, it starts at 40 kHz andincreases incrementally to 75 kHz before the pulse ends. To measure depth of an object it looks atwhich frequencies the target excites.

DownVision Uses a Dual Channel CHIRP transducer producing two beams one cone shaped and theother a narrow elliptical beam. The combination and some clever processing produces almost 3D like

Images.

Frequency and PowerDetermines the depth a sonar can reach.

Sound waves are absorbed by water -Salt water absorbs sound waves at a greater rate than fresh water.The lower the frequency of the sound wave the less it will be absorbed by water.The greater the power of the pules the deeper the sound wave will travel.Frequency wins over power when it comes to depth.

As a general rule conventional 83/200 kHz transducers are used for fresh water applications and50/200 kHz are used for salt water applications.

CHIRP transducers by the nature of the way they work deliver greater power but the frequency is stillcritical when it comes to selecting depth range.

TransducersWhy so many different types?
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Selecting the correct transducer for your boat you should consider the following.

Mounting Options-If any air that passes over the transducer it will not work.Transom Mount transducers Suitable for boats with outboards and outdrives.In-hull transducers only suitable for GRP boats do sacrifice some performance.Through-hull flush transducers Tilted element may be required depending on hull shape.Through-hull with fairing blocks offer the best performance, especially at higher speeds

Transducer material-Plastic housings are recommended for GRP or metal hulls.Stainless Steel housings are recommended for steel or aluminium hulls.Bronze housings are recommended for GRP or wood hulls.

Matching Transducer to Sonar -Power of the transducer needs to be matched to the power output of your fishfinder.DownVision transducers only work with DownVision sonar units.

Transducer Frequency-Select the correct frequency for the depth and type of water you intend to use it in.

DownVision

View the world beneath your boat with the photo-like clarity.

Unlike conventional imaging sonars that transmit a single frequency with each pulse, DownVision usesCHIRP technology to transmit across a wide spectrum of sonar frequencies with each pulse theresult is much higher resolution, photo-like sonar images.Depth performance to 180m Optimum fresh water conditions

Built in DownVisionSome Raymarine MFDs have DownVision built in. Plug in the correct transducer and your MFD willbecome a fully functional DownVision Sonar.
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Raymarine MFDs with built in DownVision

a Series 5.7 Chartplotter with DownVision Sonar (a68)a Series 7 Chartplotter with DownVision Sonar (a78)

Transom mount and Through-hull with fairing block transducers are available.

Raymarine direct connect DownVision transducers

CPT-100 Transom Mount TransducerCPT-110 Plastic Through-hull with fairing block transducerCPT-120 Bronze Through-hull with fairing block transducer

Network DownVisionRaymarine DownVision can be displayed on any a Series, c Series, e Series or gS Series MFD using aCP100 Sonar Module connected on Raynet.

The CP100 with Raymarines latest generation multifunction displays. From the compact a Series to theflagship gS Series the CP100 brings underwater vision in resolutions up to 1280 x 800 pixels.

See our Raymarine MFD Guidefor more details and a full product range

Raymarine CP100 CHIRP DownVision Sonar Module

Transom mount and Through-hull with fairing block transducers are available.
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Raymarine CP-100 DownVision transducers

CPT-100 Transom Mount TransducerCPT-110 Plastic Through-hull with fairing block transducerCPT-120 Bronze Through-hull with fairing block transducer

Digital SonarUsing conventional 50/200 kHz Dual frequency transducers

Conventional imaging sonar with large selection of transducers

Depth performance 600w up to 900m Optimum fresh water conditionsDepth performance 1kW up to 1,500m Optimum fresh water conditions

Built in Digital SonarSome Raymarine MFDs have Digital Sonar built in. Plug in the correct transducer and your MFD willbecome a fully functional Digital Sonar.

Raymarine MFDs with built in Digital Sonar 600w

Raymarine a67 5.7 inch MFD with Built-in FishfinderRaymarine a77 7 inch MFD with Built-in FishfinderRaymarine c97 9 inch MFD with Built-in FishfinderRaymarine c127 12 inch MFD with Built-in FishfinderRaymarine e7D 7 inch MFD with Built-in FishfinderRaymarine e97 9 inch MFD with Built-in FishfinderRaymarine e127 12 inch MFD with Built-in Fishfinder

Transom mount, Through-hull and in-hull transducers are available.
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Raymarine direct connect Digital Sonar Transducers

See full range of 600w 50/200 kHz Transducers

Network Digital SonarRaymarine Digital Sonar can be displayed on any a Series, c Series, e Series or gS Series MFD using aCP300 Sonar Module connected on Raynet.

The CP300 Digital sonar module is for anglers looking to step up to more power and offshoreperformance. Using Raymarines exclusive digital ClearPulse sonar processing technology the CP300intelligently adjusts every sonar variable automatically and eliminates unwanted noise from the display.The result is accurate, easy to interpret fish targeting and bottom imaging.


Raymarine CP300 Digital Sonar Module

Raymarine CP300 Digital sonar module is compatible with a broad range of 600W and 1000Wtransducers

See full range of 600w 50/200 kHz TransducersSee full range of 1000w 50/200 kHz Transducers

CHIRP SonarBuilt for the offshore angler that demands the best.
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CHIRP sonar technology goes beyond high definition sonar and delivers increased resolution,enhanced fish targeting and deeper depth performance. Easily identify and separate baitfish frompredators, using Raymarines exclusive CHIRP sonar processing.

Network CHIRP SonarRaymarine CHIRP Sonar can be displayed on any a Series, c Series, e Series or gS Series MFD usinga CP450 Sonar Module connected on Raynet.

TruZoom mode for a precise magnified view of fish targets, bottom structure and baitfish without anyloss of resolution seen with traditional sonar.Fast Pulse Rate with 80 pulses a second and enhanced shallow water and high-speed operation.

Dual CHIRP channels 2 independently adjustable channels (two sonars in one). Each channel can becustomised to specific frequency bands along with independent manual and auto adjustment settings.


Raymarine CP450 CHIRP Sonar Module

A Large range of transducers can be connected to the CP450Low, medium and high frequencies for excellent performance at all depthsFrom 25kHz to 255kHz with additional mid-band frequency support in the 75kHz to 130kHz range.

Low, medium and high frequencies for excellent performance at all depths supports CHIRPtransmissions from 25kHz to 255kHz with additional mid-band frequency support in the 75kHz to130kHz range.

See full range of 600w CHIRP TransducersSee full range of 1000w CHIRP Transducers

Warranty
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2-3 year return to base and Onboard warranty available.

Raymarine Sonar units come with a standard limited warranty that can be extended to three years atno extra charge.

To get Raymarines full onboard warranty your Sonar needs to be Installed / Commissioned by aCertified Raymarine Dealer.
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raymarine mfd fishfinder sonar guide

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