SECTION 1

INTRODUCTION

1.1 OVERVIEW

The GARMIN GPS 35LP is a complete GPS receiver, including an embedded antenna, designed for a broad spectrum of OEM (Original Equipment Manufacturer) system applications. Based on the proven technology found in other GARMIN 12 channel GPS receivers, the GPS 35LP will track up to 12 satellites at a time while providing fast time-to-first-fix, one second navigation updates and low power consumption. Its far reaching capability meets the sensitivity requirements of land navigation as well as the dynamics requirements of high performance aircraft.

The GPS 35LP design utilizes the latest technology and high level circuit integration to achieve superior performance while minimizing space and power requirements. All critical components of the system including the RF/IF receiver hardware and the digital baseband are designed and manufactured by GARMIN to ensure the quality and capability of the GPS 35LP. This hardware capability combined with software intelligence makes the GPS 35LP easy to integrate and use.

The GPS 35LP is designed to withstand rugged operating conditions and is completely water resistant. The GPS 35LP is a complete GPS receiver that requires minimal additional components be supplied by an OEM or system integrator. A minimum system must provide the GPS 35LP with a source of power and a clear view of the GPS satellites. The system may communicate with the GPS 35LP via a choice of two RS-232 compatible full duplex communication channels (-xVS series), or two full duplex CMOS channels (-xVC series). Internal memory backup allows the GPS 35LP to retain critical data such as satellite orbital parameters, last position, date and time. End user interfaces such as keyboards and displays are added by the application designer.

1.2FEATURES

The GPS 35LP provides a host of features that make it easy to integrate and use.

1)Full navigation accuracy provided by Standard Positioning Service (SPS)

2)Compact design ideal for applications with minimal space

3)High performance receiver tracks up to 12 satellites while providing fast first fix and low power consumption

4)Differential capability utilizes real-time RTCM corrections producing 3-10 meter position accuracy

5)Internal clock and memory are sustained by a rechargeable memory backup battery. The battery recharges during normal operation.

6)User initialization is not required

7)Navigation mode (2D or 3D) may be configured by the user

8)Two communication channels and user selectable baud rates allow maximum interface capability and flexibility

9)Highly accurate one-pulse-per-second output for precise timing measurements. Pulse width is configurable in 20 msec increments from 20 msec to 980 msec.

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