Conkey's 14 inch Flexible Antenna for Garmin Alpha 100 Handheld (Flex-14AL) Conkey's Outdoors
Amazon.com: Extended Long Range Flexible Receiver Orange Antenna for Garmin GPS Alpha 100 200 Astro 220 320 430, Eifagur : Electronics
18" Long Range Antenna for Garmin Alpha or Astro
Amazon.com: High Gain Long Range Magnetic Base Replacement Antenna Compatible with Garmin GPS Alpha 100 200 200i Astro 220 320 430, Eifagur : Electronics
Flexible Orange 18 " Long Range Antenna Garmin Astro 220 / 320 /430 - Alpha 100 のeBay公認海外通販|セカイモン
Garmin, Portable Long Range Antenna by Garmin International