How to add a DC50 to the Astro 320:
(Make sure that no other collars are within 10 feet of the Astro)
From your main menu select Dog List.
On your Dog List, select Add Dog.
The next screen will ask you if you can touch your dog collar to the Astro 320, select Yes.
The next screen will prompt you to touch the collar to the handheld. Go ahead and touch the collar to the handheld.
Once the collar is connected you will hear the DC50 beep and a screen will pop up that allows you to give the collar a name.
Once you’ve typed the name for the collar select Done at the bottom of the screen, Your handheld held and DC50 are paired and ready to use!