Astro
Dog Tracking System Owner’s Manual
Appendix
Accuracy
GPS:
< 33 ft. (10 m) 95%
DGPS:
10–16 ft. (3–5 m) 95% typical
(WAAS accuracy in North America)
Velocity:
0.164 ft./sec.
(
0.05 m/sec) steady state
Miscellaneous
Compass:
Accuracy (when calibrated); ± 2 degrees,
resolution; 1 degree
Altimeter:
Accuracy (when calibrated): ± 10 ft. (3 m)
Resolution: 1 ft. (0.3 m)
Range: from -2,000 ft. to 30,000 ft. (from
-610 to 9144 m)
Interfaces:
USB for computer interface
Data Storage Life:
Indefinite; no memory battery
required
Map Storage:
microSD card capacity (a small
portion of the card capacity is used
for formatting)
Power
Source:
Astro 220: Two 1.5 volt AA batteries, vehicle
power adapter, USB data cable
DC 30: Internal rechargeable lithium-ion battery,
vehicle power adapter, AC charger
Battery Life:
Astro 220: Up to 24 hours (typical
use). Alkaline batteries lose capacity as temperature
decreases. Use lithium batteries when operating in
below-freezing conditions.
DC 30: from 17 to 36 hours. Recharging takes 4½
hours.
Radio
MURS (Multi-use Radio Service) Frequency:
151.82 MHz
151.88 MHz
151.94 MHz
154.57 MHz
154.60 MHz
Range:
Up to 7 miles (11.2 km) - line of sight
