If you would like to confirm that rescue mode is turned on, on your DC50, you would do this through “Identify Dog Unit” Step 1:  Go to your Dog list on your Garmin Astro 320 and select the dog you want to check.  (Press Enter) Step 2: Select Show Info and Press enter Step 3:  Press the menu button Step 4: Select Identify Dog Unit and press enter. You will see a short prompt that shows “communicating with dog unit” and after that you should now see a screen which shows the state of the rescue mode, along with the Unit ID, and update rate for that particular Garmin DC50.