The DC 30 collar’s main housing is weighted to sit below the dog’s neck, while a small, low-profile GPS antenna is integrated into the collar strap and positioned on top of the dog’s neck, providing a clear view of satellites with minimal rotation. The transmitter antenna originates from the lower housing, and has been redesigned for more flexibility and ruggedness. No counterbalance or harness is needed. The weight for the transmitter plus antenna is 4.1 ounces, and the entire DC 30 weighs just 8.7 ounces. The Astro GPS Dog Tracking System requires very little configuration straight out of the box, and is extremely simple to use. Once the transmitter and receiver acquire a GPS signal, the receiver automatically lets users know the location of their dog. Unlike old radio telemetry collars, the Astro features a dog page that shows the precise direction and distance to a dog – even indicating if it is running, on point, or treeing quarry – and does it all without the annoyance of beeper collars…