Garmin, a leader in GPS devices, manufactures GPS tracking systems for sporting dogs.  They are of the radio transmission type and can be used in remote areas where no cell reception is available.

The Garmin Astro 320 T5 is the cream of the crop when it comes to sporting dog GPS tracking systems.    It is a redesigned and upgraded version of the Astro 220.  It has all the bells and whistles along with a 9 mile line of sight range.  The handheld device is durable and rugged, sports a high quality display, 1.7 GB of memory, and is much more comfortable to the touch and easier to use than the Atr0o 220, providing more user friendly step by step instructions and additional and more flexible functions when it comes to setting up and adding new dogs.   The biggest difference between the Astro 320 and 220 is that the 320 provides custom map capability and bird’s eye satellite imagery.  It also has a slot for a removable microSD card that can be used to add additional maps.  To see all the details and capabilities of the Astro 320, you can reference owner’s manual.

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