Garmin eTrex Vista Owner's Manual - Page 68

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Appendix A Specifications Physical Case: Size: Weight: Temperature Range: Fully-gasketed, high-impact plastic alloy, waterproof to IPX7 standards (waterproof to one meter for 30 minutes) 4.4"H x 2"W x 1.2"D Approx. 5.3 ounces (150 g) w/batteries 5° to 158°F (-15° to 70°C) (operating) Performance Receiver: Differential-ready, 12 parallel channel Acquisition time: Approx. 15 seconds (warm start) Approx. 45 seconds (EZinit/cold start) Approx. 5 minutes (First Time/AutoLocate™) Update Rate: 1/second, continuous GPS Accuracy:

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58
Appendix A
Physical
Case:
Fully-gasketed, high-impact plastic alloy, waterproof to IPX7 stan-
dards (waterproof to one meter for 30 minutes)
Size:
4.4”H x 2”W x 1.2”D
Weight:
Approx. 5.3 ounces (150 g) w/batteries
Temperature Range:
5° to 158°F (-15° to 70°C) (operating)
P
erformance
Receiver:
Differential-ready, 12 parallel channel
Acquisition time:
Approx. 15 seconds (warm start)
Approx. 45 seconds (EZinit/cold start)
Approx. 5 minutes (First Time/AutoLocate™)
Update Rate:
1/second, continuous
GPS Accuracy:
<15 meters (49 ft) RMS, 95% typical
1
DGPS (USGC) Accuracy:
3-5 meters (10-16 ft), 95% typical with DGPS corrections
2
DGPS (WAAS) Accuracy:
<
3 meters (10 ft), 95% typical with DGPS corrections
2
Velocity Accuracy:
0.05 meter/sec steady state
Dynamics:
Performs to specifications to 6 g’s
Interfaces:
NMEA 0183, RTCM 104 (for DGPS corrections) and
RS-232 for PC interface
Antenna:
Built-In patch
Power
Input:
Two 1.5-volt AA batteries
3
Power Consumption:
0.5 watts max.
Battery Life:
Up to 12 hours of typical use in ‘Battery Saver’ mode
4
Specifications are subject to change without notice.
1
Subject to accuracy degradation to 100m 2DRMS under the U.S. DoD-imposed Selective Availability program.
2
With optional GARMIN Differential Beacon Receiver Input (such as GARMIN GBR 21 or 23).
3
The temperature rating for the eTrex Vista may exceed the usable range of some batteries. Alkaline batteries
can rupture at high temperatures. External power can only be applied using the GARMIN Auto Power
Adapter or PC Interface Cable with Auto Power Adapter. These cables contain a 12 Vdc to 3 Vdc voltage
regulator. Modifications or other applications voids the product warranty.
4
Alkaline batteries lose a significant amount of their capacity as temperature decreases. Use lithium batteries
when operating the eTrex Vista in below-freezing conditions. Extensive use of screen backlighting and the
electronic compass significantly reduces battery life. Different brands of batteries vary in performance.
Specifications