➊
VHF antenna
➋
Collar
➌
GPS antenna
➍
Power key
adjusting the Backlight
NOTE
: The backlight brightness may
be limited when the remaining capacity
in the batteries is low.
Extensive use of screen backlighting
can significantly reduce battery life.
1. Press and quickly release .
2. Use the
Rocker
to adjust the
brightness levels.
TIP
: You can also press and
quickly release to cycle through
the brightness levels.
3. Press
ENTER
to select a brightness
level and close the menu.
astro and DC 40 Tips
• 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.
• Use a fully charged DC 40. A
fully charged DC 40 operates for
approximately 17 hours when using
five-second interval reporting.
