Garmin GPS 18x Series Technical Specifications

Also see for GPS 18x LVC: Declaration of conformity

Contents

Garmin GPS 18x Series Technical Specifications Manual pdf 10 page image

190-00879-08 GPS 18x Technical Specifications Rev. BPage 61.6.2.5 Environmental Characteristics• Operating Temperature: -30°C to +80°C (-22°F to +176°F)• Storage Temperature: -40°C to +90°C (-40°F to +194°F)1.6.3 GPS Performance1.6.3.1 ReceiverWAAS Enabled® GPS receiver continuously tracks and uses multiple satellites to compute and update your position.1.6.3.2 Acquisition Times• Reacquisition: Less than 2 seconds• Hot: Approx. 1 second (all data known)• Warm: Approx. 38 seconds (initial position, time, and almanac known; ephemeris unknown)• Cold: Approx. 45 seconds1.6.3.3 Update Rate• GPS 18x USB, PC, and LVC: 1 record per second• GPS 18x-5Hz: 5 records per second1.6.3.4 Accuracy• GPS Standard Positioning Service (SPS)Position: < 15 meters, 95% typicalVelocity: 0.1 knot RMS steady state• WAASPosition: < 3 meters, 95% typicalVelocity: 0.1 knot RMS steady state• Measurement Pulse Output Time: ±1 microsecond at rising edge of the pulse• Dynamics: 999 knots velocity (only limited at altitude greater than 60,000 feet), 2g dynamics1.6.4 Interfaces1.6.4.1 GPS 18x Electrical Characteristics• GPS 18x USB: USB 2.0 full-speed protocol compatible, as well as USB 1.1 full-speed protocol.• GPS 18x PC and LVC: TIA-232-F (RS-232) compatible asynchronous receiver. Default setting is 4800baud.• GPS 18x-5Hz: TIA-232-F (RS-232) compatible asynchronous receiver. Default setting is 19200 baud.1.6.4.2 Garmin Interface and Garmin USB ProtocolRefer to the Garmin Device Interface Specification found in the Garmin Device Interface SDK for informationabout the Garmin Interface and the Garmin USB Protocol. At the time of this printing, this document is located onthe Garmin Web site at: www.garmin.com/support/commProtocol.html.See Appendix B: Garmin Binary Output Format for additional information concerning access to binary data fromthe GPS 18x USB.