Hacking GPS

You'll get lost in this book, but nowhere else

Your GPS is a really cool toy, but what if you could make it even cooler? _ What if you could build and hook up data cables, modify your iPAQ cradle to take a GPS connection, tweak the firmware, hook up to your PC without expensive software, use GPS data in a hundred creative ways, even solar-power your GPS? Suppose you could beef up your "first to find" quotient when geocaching, or use your GPS as a super-accurate clock. Well, you can. Read on-your adventure is just beginning!

Here's how to soup up your GPS

Covers both Garmin and Magellan models

• Crack the secret codes
• Build auxiliary battery packs
• Navigate with your GPS
• Make power and data cables
• Sharpen your signal
• Keep firmware updated
• Create and load data
• Grab screenshots on the move
• Set up an atomic clock
• Customize GPS games
• Discover paper-free geocaching