Average Reviews:
(More customer reviews)The original astro came packaged with a small rechargable orange transmitter and a velcro harness to put it on your dog. Anyone mixing velcro and dog hair knows what happens next. There was also a plastic clip you could use to screw the transmitter onto your dog's existing collar, but my dog broke 2 of those clips giving chase.
When the DC30 came out it was a major improvement. Garmin realized that the heavy transmitter would sag down where the dog tags hang, so they put it there intentionally instead of trying to force it on top.
The passive antenna in the original unit was replaced with an active amplified gps antenna sewn into the collar facing the sky. A small thin cable is hidden in the collar to carry the gps signal down to the transmitter below.
Finally, the transmit antenna was redesigned for vhf frequencies and realizes 1dB more gain over the previous transmitter - not alot but still an improvement.
In short, the DC 30 makes the astro a real dog tracker. I bought the collar separately and was immediately impressed. No longer did I have to scrape dog hair from the velcro on their earlier design!
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Garmin DC 30 Transmitter Collar. This rugged, all weather collar has an integrated GPS transmitter and antenna that work with the Astro 220 to ensure that your dog will never be lost again. Plus, its specially weighted so the antenna will always point to the sky for optimal signal. When teamed up with the Astro 220, this system will have you hunting in no time. The DC 30, in combination with the Astro 220, pinpoints your dogs position every 5 seconds and runs for 17 hours. You can extend the battery life of the DC 30 by changing the position transmit rate from 5 to 10 or 30 seconds, enabling the DC 30 to work up to 36 hours in the field on one charge. You will know if your dog is pointing, sitting, moving or treeing. Where its at. Where its been. How fast its moving and how far its gone.
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