Handheld and portable GPS are great for kayaks, paddleboards, sailing dinghies, john boats or as a backup on your larger vessel since they don’t rely on your boat's main power supply to operate. Take a look below to get a sense of some of the differences in GPS receivers so you can pick what works best for you and your vessel. When the fog rolls in and you need a little help finding your way home, we've got you covered. West Marine offers the latest in GPS technology with a variety of brands to suit your needs. Most marine GPS includes features not found on your smartphone apps. You can divide the world of GPS devices into 3 different categories: handheld/portable, fixed mount displays and multifunction displays. Using timing signals sent by the satellites and knowing the exact orbital locations of the satellites, a GPS receiver can determine your location accurately within 6 meters and your altitude within approximately 10 meters. This nominal constellation features 32 satellites in medium Earth orbit (MEO) 12,550 miles above the earth. GPS is a satellite-based navigation system that provides accurate position fixes 24-hours a day on land, sea and air in any weather with no subscription or fee. GPS allows you to find yourself anywhere in the world with great precision. Thankfully, navigating the waters today is much easier due to the Global Positioning System, or as it’s commonly referred to, GPS. They had to use celestial navigation, compasses or the inadequate maps of the past. It used to be very difficult for mariners to figure out where they were in the world and where they were going.
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