Buying Guide for the Best Gps Chartplotters
Choosing the right GPS chartplotter can significantly enhance your navigation experience, whether you're a seasoned sailor or a weekend boater. A GPS chartplotter combines GPS navigation with electronic charts, providing you with real-time positioning and detailed maps. To make an informed decision, it's essential to understand the key specifications and how they align with your specific needs. Here are the main specs to consider when selecting a GPS chartplotter.Screen SizeThe screen size of a GPS chartplotter is crucial as it determines how easily you can view maps and data. Screen sizes typically range from 5 inches to over 12 inches. Smaller screens (5-7 inches) are more compact and suitable for smaller boats or limited dashboard space. Medium screens (8-10 inches) offer a balance between visibility and space, making them ideal for mid-sized boats. Larger screens (11 inches and above) provide the best visibility and are perfect for larger vessels or those who need to see detailed information at a glance. Choose a screen size that fits your boat's space and your need for clear, easily readable information.
ResolutionResolution refers to the clarity and detail of the display, measured in pixels. Higher resolution means sharper and more detailed images. Common resolutions range from 480 x 800 pixels to 1280 x 800 pixels or higher. For basic navigation, a lower resolution may suffice, but for detailed charting and viewing multiple data points simultaneously, a higher resolution is beneficial. Consider your need for detail and clarity when selecting the resolution.
Chart CompatibilityChart compatibility indicates which types of electronic charts the chartplotter can use. Popular chart formats include Navionics, C-MAP, and proprietary charts from the manufacturer. Ensure the chartplotter you choose is compatible with the charts you prefer or already own. Some chartplotters come with preloaded charts, while others require separate purchases. Think about the areas you navigate and the level of detail you need in your charts when making your choice.
GPS ReceiverThe GPS receiver's quality affects the accuracy and speed of your positioning. Most modern chartplotters come with built-in GPS receivers, but the number of channels and the type of GPS system (such as WAAS-enabled) can vary. More channels generally mean better accuracy and faster updates. If precise positioning is critical for your navigation, look for a chartplotter with a high-quality GPS receiver.
ConnectivityConnectivity options, such as Wi-Fi, Bluetooth, and NMEA 2000, allow your chartplotter to connect with other devices and systems on your boat. Wi-Fi and Bluetooth enable wireless updates and integration with smartphones or tablets, while NMEA 2000 allows for seamless communication with other marine electronics like fish finders, radar, and autopilot systems. Consider the other equipment on your boat and how you might want to integrate your chartplotter with these systems.
Touchscreen vs. Button ControlChartplotters come with either touchscreen controls, button controls, or a combination of both. Touchscreens offer intuitive and quick navigation, similar to using a smartphone, but can be challenging to use with wet hands or in rough conditions. Button controls are more reliable in harsh marine environments but may be slower to operate. Some models offer hybrid controls, providing the best of both worlds. Think about the typical conditions you navigate in and your personal preference for control types.
Additional FeaturesAdditional features such as sonar integration, radar compatibility, and AIS (Automatic Identification System) can enhance your chartplotter's functionality. Sonar integration is useful for fishing, radar compatibility helps with navigation in poor visibility, and AIS provides information on nearby vessels for collision avoidance. Consider what additional features might be beneficial for your specific boating activities and choose a chartplotter that supports those features.