This product is either discontinued or we cannot get that from suppliers.
Brand: Garmin, Model: 010-10856-50, Type: Antenna, Colour: Black, Compatible: Astro 430.
Let your sporting dog go even farther. This 13-inch flexible, long-range VHF antenna includes up to 9 miles increased tracking range when used with the Garmin Astro 430 handheld dog device.