Appendix; Specifications - Garmin Astro 220 Owner's Manual

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Specifications

Physical
Size: Astro 220 - 6.25" H x 2.25" W x 1.25" D
DC 20 - 1.75"H x 3.25" W x 1.5" D
Weight: Astro 220 -6.5 ounces (185 g) w/o batteries installed.
DC 20 - 6.0 ounces (170g) w/battery pack- w/o collar
attachment plate
Display: Astro 220 - 1.5" W x 2.2" H, 256-color, high resolution,
transreflective (160 x 240 pixels) with backlighting.
Case: Rugged, fully gasketed, water resistant, IEC-529, IPX7
Temp Range: Astro 220 -4 to 158
DC 20 -4 to 140
DC 20 charging temp. 32 to 113
*The temperature rating of the Astro System may exceed the usable range of some
batteries. Some batteries can rupture at high temperatures.
GPS Performance
Receiver: WAAS enabled
Acquisition Times :
*
Approx. 1 second (warm start)
Approx. 38 seconds (cold start)
Approx. 45 seconds (factory reset)
On average for a stationary receiver with an open sky view.
*

o F (-20 to 70 o C)
*
F (-20 to 60 C)
o o
o F (0 to 45 o C)
Update Rate: 1/second, continuous
Antenna: Astro 220 -Built-in quad helix
DC 20 - Built-in Patch
Accuracy
GPS:
<10 meters (33 feet) 95% typical
Subject to accuracy degradation to 100m 2DRMS under the U.S. DoD imposed
*
Selective Availability (SA) Program when activated.
DGPS: 3-5 meters (10-16 feet) 95% typical
*
WAAS accuracy in North America.
Velocity: 0.05 meter/sec steady state
Miscellaneous
Compass:
Accuracy; +/- 2 degrees
Altimeter: Accuracy; +/- 10 feet
Range -2,000 to 30,000 feet
Subject to proper user calibration.
*
Interfaces: USB for computer interface
Data Storage Life: Indefinite; no memory battery required
Map Storage: Depends on microSD card capacity
A small portion of the card capacity has been used in formatting the card for use.
*
Power
Source:
Astro 220 -Two 1.5 volt AA batteries, USB Data
Cable, Vehicle Power Adapter
DC 20 - Internal rechargeable lithiun-ion battery,
Vehicle Power Adapter, AC charger
Astro Dog Tracking System Owner's Manual
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, resolution; 1 degree
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, resolution; 1 ft.
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