Amazon.com: High Gain Long Range Magnetic Base Replacement Antenna Compatible with Garmin GPS Alpha 100 200 200i Astro 220 320 430, Eifagur : Electronics
Used Garmin Astro 220 Handheld | Garmin 220 Tracking System
Garmin Astro 220 – Used | eBay
Amazon.com: HQRP 2600mAh Battery Pack Compatible with Garmin Astro System DC30 DC-30, Astro 220 320 GPS Dog Tracking System Collar Receiver 010-11049-00 : Electronics
Garmin Astro 220 and DC30 Bundle
VHF telescopic 121cm long range strong signal antenna for gps garmin SMA 25000 astro 320 astro 220 alpha 100 astro 430 - AliExpress