(BQ) Part 2 book "Hacking GPS" has contents: Data hacking GPS data, examining the data, more data tricks, hacking geocaching, GPS games, GPS primer, websites/Internet resources. | GPS Data chapter T his chapter is all about data. As you walk, drive, sail, or otherwise move around with your GPS, you are gathering a great deal of data. In this chapter, you will learn what you can do with this data while in the field and when you get back to base. You’ll see how to create and edit your own waypoints and routes and how to upload these to your GPS. Then, you’ll learn how you can download, modify, and upload data that you captured while using the GPS. You’ll also look at various applications into which you can export your data for managing it and storage. This chapter also describes how you can add GPS information to digital photographs, plot lightning strikes, and go wardriving. For any programmers that might be reading this, we will also be looking at some websites and applications that might be of use to you if you’re interested in writing your own GPS applications. Finally, you’ll learn how you can create your own data for upload to your GPS. GPS Data Collection As you move around with your GPS, it is continuously gathering data and storing it so that you can access it later. The newer and more expensive the GPS, the more information it can hold. For example, the Garmin eTrex basic version can hold the following: Ⅲ 500 waypoints Ⅲ 1 route Ⅲ 50 waypoints per route Ⅲ 1,536 tracklog points At the top to the range, the Garmin Vista has greater capacity in all areas: Ⅲ 1,000 waypoints Ⅲ 20 routes Ⅲ 125 waypoints per route Ⅲ 10,000 tracklog points in this chapter ˛ GPS data collection ˛ Working with data ˛ Using EasyGPS ˛ Using G7toWin ˛ Creative uses of GPS data ˛ Sharing waypoints 166 Part III — Data Hacking Put simply, this means you can move around longer with a Garmin Vista than you can with a basic eTrex without overwriting existing data. Let’s take a look at the different types of information your GPS collects and stores. Position, Velocity, Time Position, Velocity, Time (PVT) data is at the core of GPS. These three data categories
