GPS Navigation

In simple terms they tune in to signals being sent from NAVSTAR satellites orbiting 12,000 miles above the surface of the earth. The accuracy of your GPS at any given time will vary depending on how many satellites you are tracking. The GPS then relates the signals from the various satellites to a specific position on earth letting you know, often within feet, where you are.

Even low end GPS units contain the basic functions necessary for navigation. They not only tell you where you are at a given time but allow you to save waypoints. For example you will want to mark your camp as a waypoint and you will likely mark the location of your vehicle as a waypoint. You will then periodically mark trail crossings and other points of interest you may pass. And of course, don't forget to mark your blind or tree stand. When you're focused on tracking your deer it's easy to become disoriented, so be sure you can find your way back.

A set of waypoints can be saved to create a route that will allow you to follow a specific path over and over again. Or, you can use the "GO TO" function to select a specific waypoint – perhaps your car – that you want to head for. The arrow on your GPS will keep pointing to the waypoint until you reach it. You will also get information like distance traveled, distance to waypoint, and average speed.

Higher end units give you the ability to download topographical maps, road maps, and charts directly to your GPS unit. You will not only see your location and waypoints but you will see them relative to the map you are using.

I would like to leave you with something to consider before heading into the wilderness with your new GPS. This technology has become so easy to use that the average hunter is now able to get themselves into trouble in half the amount of time. That's right, don't use a GPS for wilderness travel unless you know how to use a topographical map and compass, and have them with you.

Here are a few cautions to keep in mind when using a GPS:

1. A GPS does not work, or may give inaccurate readings, under heavy tree cover!
2. A GPS does not always function well in river bottoms surrounded by high hills or cliffs!
3. A GPS can be affected by dense cloud cover and adverse weather conditions!
4. A GPS requires power to work! Lose you batteries and you’ve lost your ability to navigate with a GPS.