Garmin Astro DC50 Product Suport Page

Press the DOG button twice on your Astro 320, Next select the DC50 collar you wish to change the update rate on. Next select Show Info. This will bring up you info page of the collar you have selected.    On the 320 Press the menu button and select Comm. Settings. Once Comm. Settings is selected, the device will ask...

Starting at your Map screen on your Astro 320, press the Menu button and select Setup Dogs.    Once you select Setup Dogs, you will be able to turn On or Off the Bark Detection Mode on your 320 handheld. When Bark Detection is on, boxes will appear on your Astro 320 with the Barking rate for the DC50 collars...