The flexible VHF whip that ships on the T 9 dog device. At 14.2 inches (36 cm) it is the length that gives the collar its rated tracking range of up to 5 miles.
Antennas take the worst of a working dog’s day — brush, fences, water, other dogs — and a kinked or cracked one costs you range long before it fails outright. Keeping a spare in the truck is cheaper than losing a dog’s signal.
