Coil Mag Mount Truck Antenna for Garmin Alpha, Garmin Astro 320, and Garmin Astro 220

Outdoor Dog Supply's 18" Coil Mag Mount for the Garmin Alpha 100, Astro 320 and Astro 220 Don't be fooled by the size of this antenna, it tracks as good, if not better, than most long range antennas available on the market today. It comes already tuned into the Garmin Alpha and Astro tracking frequency. The short 18" whip and larger base helps to keep it from getting knocked off by tree limbs. This antenna is a standard connection. Specifications: Height: 18" Base: 4 3/4" Connection: Standard Direct Connect