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(508) 746-3988

Marine Electronics & Upgrades in Plymouth, MA

Marine electronics installation and upgrades including chartplotters, fish finders, VHF radios, audio systems, navigation lights, and electrical systems.

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What marine electronics upgrades are actually worth the money?

The short answer: anything that makes you safer, helps you find fish, or keeps you from getting lost on the water. The longer answer depends on how you use your boat.

At Atlantic Boat Repair we install and wire marine electronics for South Shore boaters from Plymouth to Falmouth. Chartplotters, fish finders, VHF radios, audio systems, navigation lights, and battery management are the most common upgrades we see. Ron has been doing this for 50 years, and the single biggest mistake he sees is customers buying good equipment and then having it installed poorly. A chartplotter that loses connection at 20 knots, a VHF antenna with bad coax, or a stereo that pops a fuse every time the bilge pump runs are all installation problems, not equipment problems.

We are NMEA-certified, which means we understand how these systems talk to each other. Most modern marine electronics run on an NMEA 2000 network, a backbone that lets your chartplotter, fish finder, engine data, autopilot, and depth sounder share information. Done right, one display shows everything. Done wrong, you have five standalone devices with no communication and wiring that looks like a bowl of spaghetti.

We work on all major brands: Garmin, Lowrance, Humminbird, Simrad, Standard Horizon, Fusion, Kenwood, and more. We will tell you which unit fits your console space and budget before you buy anything. Bring the boat in and we will give you an honest assessment of what your current setup can support and what is worth upgrading.

Our Marine Electronics & Upgrades Services

Choose from our comprehensive range of marine electronics & upgrades services

Chartplotter & GPS Installation

Chartplotter and GPS installation for all makes and models including Garmin, Lowrance, and Humminbird. Network integration, transducer mounting, and full chart card setup so you leave the dock knowing exactly where you are.

Signs you need this

  • GPS signal loss at the helm
  • Blank sonar screen at speed
  • Wrong chart coverage loaded
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Fish Finder Installation

Fish finder installation with proper transducer placement for accurate readings in shallow and deep water. We install standalone units and integrated chartplotter/sonar combos for recreational and serious fishing alike.

Signs you need this

  • Blank screen at planing speed
  • Noisy or grainy sonar picture
  • Inaccurate depth readings
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VHF Radio Installation

Fixed-mount VHF radio installation with antenna wiring, DSC configuration, and MMSI registration support. Properly installed VHF is your most reliable safety link on the water.

Signs you need this

  • Short transmission range
  • DSC distress call not sending position
  • MMSI not registered
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Marine Audio Systems

Marine-rated audio system installation including head units, amplifiers, and weather-resistant speakers built for saltwater environments. Clean wiring, secure mounting, and sound that holds up on the water.

Signs you need this

  • Speakers failing after one season
  • Ground loop hum
  • Fuse blowing repeatedly
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LED Navigation Light Upgrades

LED navigation light upgrades replacing outdated incandescent fixtures with Coast Guard-compliant LED bow, stern, and all-around lights. Brighter output, lower draw on your battery, and longer service life.

Signs you need this

  • Lights flickering underway
  • Dim output below USCG visibility standards
  • Fixtures failing after one season
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Marine Electrical & Battery Systems

Marine electrical and battery system installation including dual-battery setups, lithium upgrades, battery switches, shore power wiring, and charging systems. Clean and reliable power management for everything on board.

Signs you need this

  • Battery dead at the end of the day
  • Parasitic drain killing the battery overnight
  • Corroded wiring causing intermittent failures
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Why Choose Atlantic Boat Repair for Marine Electronics & Upgrades?

We're your trusted partner for all marine electronics & upgrades needs

ASE Certified

All our technicians are ASE-certified and factory-trained.

Same-Day Service

Quick turnaround on most repairs to get you back on the road.

Honest Pricing

Upfront quotes with no hidden fees or surprise charges.

Frequently Asked Questions About Marine Electronics & Upgrades

Get answers to common questions about our marine electronics & upgrades services

Do you sell the equipment or just install it?

Both. We can source equipment for you or install gear you already purchased. If you buy through us, we make sure what you get is compatible with your existing setup before it ships.

What brands do you work with?

Garmin, Lowrance, Humminbird, Simrad, Standard Horizon, Fusion, Kenwood, and most other major marine electronics brands. If you have something less common, call and we will let you know.

What is NMEA 2000 and do I need it?

NMEA 2000 is the standard network protocol that lets modern marine electronics share data. If you have a newer chartplotter, fish finder, or engine with digital gauges, they likely already support it. A proper backbone install means all those devices talk to each other instead of working independently.

How long does a typical electronics install take?

A single device like a VHF radio is usually a half-day job. A full multifunction display with transducer, NMEA 2000 integration, and new audio is typically one to two days depending on the boat layout.

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