January 5, 2007 Using GPS-enabled devices to keep track of your assets has been going on for a while now, but with miniaturisation and engenuity and increased sales enabling such devices to become affordable and very portable, it’s now possible to keep track of your pets, children and other high-investment animals. Accordingly, we’re thrilled to see yet another useful application developed in Garmin’s Astro GPS Dog Tracking System, designed specifically for sporting dogs and their owners. The Astro system consists of the dog's transmitter (DC 20) and the user's handheld receiver (Astro 220). The DC 20 is mounted into a lightweight neoprene harness that straps to the dog's collar, around its chest, and behind its front legs. Users can also thread the unit directly onto a standard one-inch collar so that the unit fits on the back of the dog's neck. It requires very little configuration straight out of the box and there is no subscription or setup fee required to use the device. Astro shows the precise direction and distance to a dog, indicating if it is running, sitting, on point, or treeing quarry. It can track up to ten dogs per receiver at once, and location updates can be as often as every five seconds.