Amazon.com: High Gain Antenna, Long Range Telescopic Antenna with 127CM Maximum Length Stable Signal for Garmin Astro 320 430 900 / Alpha 50 100 Handheld GPS : Electronics
Amazon.com: EXSI.CO Antenna Quick Connect kit Compatible for Garmin Astro 320 and Alpha 100 200i : Electronics
Long Range Flexible Base extendable Antenna Compatible for Garmin Astro 320 and Alpha 100,200i
Amazon.com: Garmin Astro 430 GPS/GLONASS Handheld Dog Tracking with Wearable4U Power Pack Bundle : Electronics
Amazon.com: Case Cover Compatible with Garmin Astro 320, 460 & 900 Made in The USA by GizzMoVest LLC Blk. : Electronics
Amazon.com: EXSI.CO Antenna Quick Connect kit Compatible for Garmin Astro 320 and Alpha 100 200i : Electronics
Amazon.com: Expandable Telescopic Antenna for Garmin, Long Range Replacement Strengthen Antenn for Alpha 100 50 Astro 320 220 430 Alpha100
EXSI.CO Flexible antenne für Garmin, extra lang für Handteil Astro 320, Alpha 50 und Alpha 100: Amazon.de: Elektronik & Foto
Flexible Extendable Telescopic Long Range Antenna for Garmin Astro 320, 220 & Alpha 100 Dog Tracking GPS Systems (Black)