Technology is wonderful. Sometimes, however, it can be a bit overwhelming. One of the great things about technology is that it gives us so many options for accomplishing the same goal. This is certainly true when it comes to navigating waterways with your boat. When I first started boating, navigation meant using a paper chart, a compass, and traditional charting tools. Eventually, chartplotters became available, but they were expensive and not something every recreational boater could afford. Today, we can turn practically any laptop, tablet, or cell phone into a navigation tool. With the right app and charts, these devices can provide a wealth of information right at our fingertips.
The convenience can save money, but is it the best idea? Let’s look at using a marine-grade chartplotter vs. a mobile device.
Advantages of a chartplotter
A dedicated marine chartplotter is designed specifically for use on the water. That’s an important distinction. Boats operate in an environment where electronics are exposed to sunlight, moisture, vibration, and sometimes saltwater. Marine-grade equipment is built with these conditions in mind.
One of the biggest advantages is reliability. Most marine chartplotters have bright displays designed to remain visible in direct sunlight, and many are waterproof or highly water-resistant. Their screens are generally designed to be operated in a marine environment, often with wet hands or while wearing gloves.
Chartplotters also offer features that can make navigation easier and safer. Depending on the model and equipment installed, they may integrate with your boat’s GPS, depth sounder, radar, autopilot, and other onboard systems. Having that information displayed on one screen can be extremely useful, especially when navigating unfamiliar waters or operating in challenging conditions.
Another advantage is that chartplotters don’t depend on cellular service to determine your location. GPS positioning works independently of cellular coverage, and chart data stored on the unit can remain available even when you’re far from shore.
Of course, dedicated chartplotters have drawbacks. The initial purchase price can be substantial, particularly if you want a larger screen or advanced features. Charts, software updates, and additional equipment can add to the expense. Depending on the system, installation may also require some planning and additional wiring.
For boaters who spend a lot of time on the water, however, the investment can be worthwhile.
Advantages of a mobile device
Using a tablet or cell phone for navigation has become increasingly popular, and it’s easy to understand why. You may already own the device, and there are several navigation apps available, some of which offer surprisingly sophisticated features.
Cost is a major advantage. Instead of spending hundreds or even thousands of dollars on a dedicated chartplotter, you may be able to get started with a navigation app and a device you already own. Depending on the app, you may need to pay for a subscription or purchase chart packages, but the overall cost can still be considerably lower.
Portability is another benefit. You can use your tablet to plan a route at home, review charts before leaving the dock, and take the device with you when you switch boats. A tablet also gives you a larger screen than most phones, making it easier to examine charts and plan your route.
Mobile devices can also be an excellent option for boats with an interior helm. If you operate a boat where the captain’s station is inside the cabin, your phone or tablet is naturally protected from the elements. That protection eliminates some of the biggest concerns associated with using consumer electronics on a boat. As long as the device has adequate visibility, reliable power, and suitable navigation software, it may be a practical and cost-effective primary navigation tool for this type of vessel.
However, mobile devices have limitations, particularly when used at an exposed helm. Water, excessive heat, vibration, and direct sunlight can create problems.
Battery life is another concern. Running a navigation app with GPS and a bright screen can drain a battery quickly. You should have a reliable way to keep your device charged, certainly on longer trips.
You also need to understand the difference between GPS positioning and internet connectivity. Many phones and tablets can determine their location without cellular service, but you must have the appropriate charts downloaded for offline use. Some app features may still require an internet connection. Never assume your navigation system will work as expected until you’ve tested it.
Ultimately, technology has made navigation more accessible and affordable than ever. Choose the equipment that fits your boating needs, learn how to use it properly, and always have a backup plan. Safe boating!
