Garmin GPS III A Owner's Manual

Also see for GPS III: Declaration of conformity Quick guide Owner's manual Owner's manual

Garmin GPS III A Owner's Manual Manual pdf 85 page image

The GPS III is constructed of high-quality materials and should not requireuser maintenance. If your unit ever needs repair, please take it to an authorizedGARMIN service center. The GPS III has no user-serviceable parts. Never attemptany repairs yourself. To protect your GPS III, keep it in its carrying case (optional accessory) when not in use, andnever allow gasoline or other solvents to come into contact with the case. To clean the case and lens, use a soft clothand a household window cleaner.77APPENDIX BSpecificationsPHYSICALCase: Fully-gasketed, high-impact plastic alloy,waterproof to IPX7 standardsSize: 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/ batteriesTemperature Range: 5 to 158ºF (-15º to 70ºC)†Memory Back Up: Internal Lithium BatteryPERFORMANCEReceiver: Differential-ready PhaseTrac12™Acquisition Time: Approx. 15 seconds (warm start)Approx. 45 seconds (EZinit/cold start)Approx. 5 minutes (AutoLocate™)Update Rate: 1/second, continuousPosition Accuracy: 1-5 meters (3-15 ft) with DGPScorrections*15 meters (49 ft) RMS**Velocity Accuracy: 0.1 knot RMS steady stateDynamics: Performs to specification to 6 g’sInterfaces: NMEA 183, RTCM (for DGPS corrections) andRS-232 for PC interfaceAntenna: Detachable with standard BNC connectorPOWERInput: Four 1.5-volt AA batteries† or 10-32 VDC externalPower Consumption: 0.75 watts max.Battery Life: Up to 8 hours ‡Specifications subject to change without notice.* With optional GARMIN GBR 21 Beacon Receiver Input.** 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 inbelow freezing conditions. Extensive use of screen backlighting will significantly reduce battery life.