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18 Astro 320 and DC40 Owner’s Manual
Tracking Your Dog
You can use the Collar Lock feature to
PIN protect your dog’s ID signal. Other
Astro users must enter the PIN in order
to track your dog. Other Astro users
can still add your dog by physically
touching the Astro to the DC 40.
This requires wireless communication
with the DC 40. You must turn on the
DC 40 and bring it within range of the
Astro.
1. From the main menu, press DOG >
ENTER > MENU.
2. Select Change PIN.
3. Enter a unique PIN.
NOTE: If you forget the PIN, the
Collar Lock feature can be overridden
by physically touching the Astro to the
DC 40.
• Turn on the DC 40 and allow it to
acquire satellites before you put the
DC 40 on your dog. This allows the
DC 40 to acquire satellite signals
much faster.
• Bring extra AA batteries for your
Astro (page 58).
• Use a fully charged DC 40. A
fully charged DC 40 operates for
approximately 17 hours when using
ve-second interval reporting.
• Use line-of-sight radio
communication (page 20).
• The Astro can track up to 10 dogs
with DC 40 collars. Only three dogs
can be viewed at one time on the
Dog Tracker page. To reduce the
text size, press MENU, and select
Small Numbers.