Garmin GPS 18 Technical Specifications

Also see for GPS 18 5Hz: Reference guide Features Setup guide

Contents

Garmin GPS 18 Technical Specifications Manual pdf 9 page image

GPS 18 Technical Specifications (190-00307-00) Rev. DPage 3OverviewThe GPS 18 series products include an embedded receiver and an antenna. Based on the proven technologyfound in other Garmin 12-channel GPS receivers, the GPS 18 tracks up to 12 satellites at a time whileproviding fast time-to-first-fix, precise navigation updates (five times per second for the GPS 18-5Hz, andonce per second for the GPS 18 USB, 18 PC, and 18 LVC), and low power consumption. This generationof GPS sensors adds the capability of FAA Wide Area Augmentation System (WAAS) differential GPS.The GPS 18’s far-reaching capability meets the sensitivity requirements of land navigation as well as thedynamics requirements of high-performance aircraft.The GPS 18 design uses the latest technology and high-level circuit integration to achieve superiorperformance while minimizing space and power requirements. All critical components of the systemincluding the RF/IF receiver hardware and the digital baseband are designed and manufactured by Garminto ensure the quality and capability of the GPS. The hardware capability combined with softwareintelligence makes the GPS 18 easy to integrate and use.The GPS 18 series products are designed to withstand rugged operating conditions and are waterproof toIEC 60529 IPX7, immersion in 1 meter of water for 30 minutes. These complete GPS receivers requireminimal additional components to be supplied by an OEM or system integrator. A minimum system mustprovide the GPS with a source of power and a clear view of the GPS satellites. Internal FLASH memoryallows the GPS to retain critical data such as satellite orbital parameters, last-known position, date andtime. End user interfaces such as keyboards and displays are the responsibility of the application designer.1.3 FEATURES• 12-channel GPS receiver tracks and uses up to 12 satellites for fast, accurate positioning and lowpower consumption.• Differential DGPS capability using real-time WAAS corrections yielding position errors of less than 3meters.• Compact, rugged design ideal for applications with minimal space. Receiver position information canbe displayed directly on a chartplotter or PC.• User initialization is not required. Once installed, unit automatically produces navigation data afterposition fix is acquired.• User-configurable navigation mode (2-dimensional or 3-dimensional fix).• (GPS 18 LVC and GPS 18-5Hz only) Highly accurate measurement pulse output for precise timingmeasurements: one-pulse-per-second (1 Hz) for the GPS 18 LVC or 5 Hz for GPS 18-5Hz. Pulse widthis configurable in 20 millisecond increments from 20 ms to 980 ms with 1 μs accuracy.• Configurable for binary format carrier phase data output.• FLASH-based program and non-volatile memory. New software revisions available through Web sitedownload. Non-volatile memory does not require battery backup.• Onboard rechargeable backup battery to maintain the real-time clock for up to 3 weeks.• Configurable parameters include expected position, current time and date, preferred position fix type(2D, 3D, or automatic), and velocity filter time constant (none, automatic, or your choice between 2and 255 seconds).• Waterproof design allows continuous exposure to the prevailing weather conditions at most locations.