What’s the difference between a chartplotter and a fishfinder?

A chartplotter shows your GPS position on electronic charts for navigation. A fishfinder uses sonar to show what’s below the boat — depth, bottom structure, and fish. Many modern units combine both, and networked systems can share data across displays.

Do I really need a VHF radio?

For safety, yes. A VHF radio is the primary way to reach other vessels and the Coast Guard, and a DSC-equipped VHF connected to GPS can transmit your position in an emergency. It’s more reliable than a cell phone offshore and is the recognized standard for marine distress calls.

What is NMEA 2000 and do I need it?

NMEA 2000 is a standard network that lets marine electronics — chartplotter, sonar, autopilot, sensors, engine data — share information over a single backbone. It’s not required for a simple setup, but it makes multi-device systems far easier to expand and integrate.

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Raymarine

Raymarine CPT-S Transom Mount - Conical - High Chirp

Manufacturer: RaymarinePart #: E70342SKU: 61194

Transom Mount

$127.36● In stock

Item #: 61194

Category: Transducers

● In stock — ships fast from US warehouses

Ships from US warehouses
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Description

CPT-S Transom Mount - Conical - High Chirp Connects to the CP100 and/or MFD Series that ends in axx8 or esxx8. CPT-S transducers are strictly high chirp sonar transducers and do not include the downvision element.

Also connects to Axiom Pro S series Units with optional adapter cable A80490 Features: High Chirp Sonar Transom Mount has a trolling motor bracket accessory Max Depth: 900' MFD must have version 16 software or later

Specifications

Brand	Raymarine
Part Number	E70342
EverTide SKU	61194
UPC	723193813102
Mount	Transom Mount

Specifications are provided by the manufacturer. Confirm fitment for your application before ordering, or contact us and we'll help.

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Frequency	—	—	130 kHz	—
Mount	Transom Mount	Thru Hull	Thru Hull	Thru Hull
Material	—	Bronze	Bronze	Bronze

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Raymarine

Raymarine B60-20, 20 Degree Tilted Element Transducer f/DSM300 / DSM300G / DSM250 / DSM30

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Returns & warranty

Returns are accepted within 30 dayson items that are unused and in their original packaging. Some items may be subject to a manufacturer restocking fee. Special-order items may not be eligible — if you're unsure, ask us before ordering.

Raymarine productscarry the manufacturer's standard warranty. For a warranty claim or a return authorization, see our full returns policy or contact us.

Marine Navigation & Instruments — frequently asked

What’s the difference between a chartplotter and a fishfinder?: A chartplotter shows your GPS position on electronic charts for navigation. A fishfinder uses sonar to show what’s below the boat — depth, bottom structure, and fish. Many modern units combine both, and networked systems can share data across displays.
Do I really need a VHF radio?: For safety, yes. A VHF radio is the primary way to reach other vessels and the Coast Guard, and a DSC-equipped VHF connected to GPS can transmit your position in an emergency. It’s more reliable than a cell phone offshore and is the recognized standard for marine distress calls.
What is NMEA 2000 and do I need it?: NMEA 2000 is a standard network that lets marine electronics — chartplotter, sonar, autopilot, sensors, engine data — share information over a single backbone. It’s not required for a simple setup, but it makes multi-device systems far easier to expand and integrate.

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