Antenne standard compatible DC40-DC50 - Le-Chasseur
Garmin Replacement VHF Antenna Astro DC 40 Dog Tracking Collar | eBay
DC™ 40 VHF Antenna | Garmin
Amazon.com : Outdoor Dog Supply Reflective Glow Tuff Long Range Collar Antennas for The Garmin Dc30 & Dc40 Tracking Collars (Reflective Green) : Pet Supplies