Note that there are significant differences between this online version and the published version.
I will be adding an addendum describing changes in Garmin products that have occured since the book was published which will supplement the main manual.
The GPS software in the Astro handheld is maintained separately from the main unit software.
The GPS software controls how satellites are received and tracked while the unit software controls how the unit functions in terms of the user interface and tracking dogs.
Before you begin, you will need to go to Garmin's website and download their "Web Updater" software.
Once you have installed the software on your computer, updating the Astro 220 Handheld is pretty easy.
The Garmin engineers make improvements in the software all the time.
Most folks don't know it, but you can update the software in both your Garmin Astro Hand held and your collar to the most current version by logging into Garmin's website.
Blue Chart g2 software covers coastal waters and the Great Lakes in North America, and waterways throughout the world; Inland Lakes software covers freshwater lakes within the continental United States.If you've got a different unit from the 2006 or later line, you'll need to use a Blue Chart g2 on proprietary Garmin data card instead.Blue Chart g2 adds an optional 3D perspective and richer detail and content than original Blue Chart products. Available on various types of pre-programmed data cards, there's a high-detail mapping solution for your outdoors Garmin unit. To get all this, and more, you'll need the latest Garmin Blue Chart g2 or Inland Lakes software from Tiger GPS.