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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)
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: <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 specifi cations 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 18 hours of typical use in ‘Battery Saver’ mode
4
Specifi cations 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 Legend may exceed the usable range of some batteries. Alkaline batter-
ies 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. Modifi cations or other applications voids the product warranty.
4
Alkaline batteries lose a signifi cant amount of their capacity as temperature decreases. Use lithium batteries
when operating the eTrex Legend in below-freezing conditions. Extensive use of screen backlighting and the
electronic compass signifi cantly reduces battery life. Different brands of batteries vary in performance.
Specifi cations
190-00234-00_0C.indd 52 10/11/2002, 9:49:38 AM