Garmin Astro Owner's Manual page 83

U
unit ID 38
units settings 44
updating software
Astro 220 56
DC 30 56
V
VHF antenna, replacing
w
WAAS 38
warnings and important
information 62–75
warranty 73
WebUpdater 56–57
windshield mounting
wrist strap 50
Z
zooming
altimeter 25
auto 41
highway page
map 16
Astro and DC 40 Owner's Manual
52
69
32
Index