Garmin GPS III Plus - Manual (Page 97)

The GPS III+ is constructed of high-quality materials and should not require user
maintenance. Should you ever encounter a problem with your unit, please contact your
GARMIN dealer or GARMIN Customer Service. The GPS III+ has no user-serviceable
parts. Never attempt any repairs yourself, as this may cause injury or void your warranty.
To protect your GPS III+, keep it in its carrying case (optional accessory) when not in
use, and never allow gasoline or other solvents to come into contact with the case. To clean the case and lens, use a soft
cloth and a household window cleaner.
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APPENDIX B
Specifications
Specifications subject to change without notice.
* With optional GARMIN Differential Beacon Receiver Input (such as GARMIN GBR 21 or GBR 23).
** Subject to accuracy degradation to 100m 2DRMS under the U.S. DoD-imposed Selective Availability Program.
† The temperature rating for the GPS III+ may exceed the usable range of some batteries. Alkaline batteries can rupture at high temperatures.
‡ Alkaline batteries lose a significant amount of their capacity as temperature decreases. Use lithium batteries when operating the GPS III+ in
below freezing conditions. Extensive use of screen backlighting will significantly reduce battery life.
PHYSICAL
Case: Fully-gasketed, high-impact plastic alloy,
waterproof to IPX7 standards
Size: 6.15”H x 2”W x 1.23”D (15.6 x 5.1 x 1.23 cm)
Weight: Approx. 9 ounces (255g) w/ batteries
Temperature Range: 5 to 158ºF (-15º to 70ºC)†
Memory Back Up: Internal Lithium Battery
POWER
Input: Four 1.5-volt AA batteries† or 10-32 VDC external
Power Consumption: 0.5 watts max.
Battery Life: Up to 36 hours in Power Saver mode ‡
PERFORMANCE
Receiver: Differential-ready PhaseTrac12™
Acquisition Time: Approx. 15 seconds (warm start)
Approx. 45 seconds (EZinit/cold start)
Approx. 5 minutes (AutoLocate™)
Update Rate: 1/second, continuous
Position Accuracy: 3-5 meters (10-16 ft) with DGPS
corrections, 95% typical*
<15 meters (49 ft) RMS, 95% typical**
Velocity Accuracy: 0.1 knot RMS steady state
Dynamics: Performs to specification to 6 g’s
Interfaces: NMEA 183, RTCM (for DGPS corrections) and
RS-232 for PC interface
Antenna: Detachable with standard BNC connector