These long range antennas are super heavy duty and increase range! Made to outlast the original Garmin antennas they are easy to install and will increase signal! These are 21″ antennas that work with the Garmin DC40 and DC30 dog tracking gps collars. In our tests they showed significant improvement with range. Made here in the USA by Outdoor Dog Supply!
-remove screws from the backplate of collar
-remove screw holding the original antenna in
-remove original antenna
-put your new Tuff Skin Long Range antenna on and replace antenna screw
-screw backplate back on