• Goes Wherever You Go - Unlike expensive built-in devices, this GPS can go in any car – your own, rentals on trips, new or old – because it connects to your existing laptop PC
• The GPS Leader - Loaded with innovative GPS features including voice commands, spoken directions, automatic back-on-track re-routing, & mobile map colors
• Produced by DeLorme Mapmakers - Not licensed from 3rd party companies, the updated maps and 4 million places of interest are produced by experienced mapmakers here at DeLorme. Program Includes customer revisions

Now anyone with a laptop PC can enjoy outstanding GPS performance anywhere in the U.S., Canada, and Mexico. Street Atlas USA 2008 contains the DeLorme produced and managed United States and Canadian street-level network, plus highways for Mexico. The included four million U.S. places of interest are updated annually based on phone book information and DeLorme’s own research into exit services. Canadian POIs are also included, many with phone numbers.


Best Software Features Include

• Turn your laptop into a powerful GPS tracking device
• Shows your real-time position on detailed Street Atlas USA maps
• Create address-to-address routes in the U.S.
• Find more than 4 million places of interest
• Program Includes both GPS receiver and software

Compact and Powerful: This new GPS unit is one of the smallest on the market, measuring just 1 7/8" w x 2 5/8" h x 9/16" thick. It comes with an attached 5' cable with a suction cup on the cable designed to hold the GPS against the windshield or on the dash for optimum performance. Just plug the other end of the cable into the USB port of your laptop PC. It is best to avoid rapid and far-ranging temperature extremes, bringing the GPS indoors when not in use, just as you would a cell phone. The yellow reflective casing helps reduce high temperatures while on the dash.

Getting Started Is Easy: Plug the Earthmate GPS LT-20 into the USB port of your laptop PC. The low-power chipset draws power from your laptop, meaning no GPS batteries are needed. Install the Street Atlas USA 2008 software, and load the entire second data disc onto your hard drive if you want. The software also includes over 4 million places of interest. Place the GPS as close to your front windshield as possible, ideally using the enclosed suction cup on the attached cable to hold the GPS against the glass. Click on the software GPS tab and you'll see your position updated in real time on the maps as you drive. There are many custom GPS options included within the GPS tab.


Software Features

• Provides address-to-address routes in the U.S. and Canada with major highways and roads now included for Mexico
• Pre-plan perfect routes, selecting exactly the roads you want, then GPS navigate.
• Program Includes automatic back-on-track map and direction updates when you stray off course
• Select from the four million places of interest within the software (no Web connection needed)
• Find and navigate to gas stations, restaurants, lodgings, emergency services, attractions, churches, colleges, Wal-Marts, Dunkin Donuts, Flying J's, and other chains researched and accurately GPS located by DeLorme mapmakers
• Hear spoken directions calling out precise street names, exits, and ramps (compare to other software products that only say "turn right" or turn left")
• Enjoy new faster satellite acquisition times using the latest STMicroelectronics GPS chipsets and technologies
• View large-screen maps and GPS with easy-to-read directions and arrows
• Select many custom settings including mobile map colors for improved in-vehicle visibility
• Issue spoken commands and receive spoken replies
• Load included Street Atlas USA software on hard drive or run from DVD-ROM

Software Best Highlights

What Is WAAS?
WAAS stands for Wide Area Augmentation System and is a system of satellites and ground stations that provide GPS signal corrections. As is true of the GPS satellites, there is no extra charge or equipment required to take advantage of WAAS. Because the new Earthmate USB GPS is WAAS-enabled, it is possible where WAAS is available to experience accuracy of under three meters for the majority of tracking time.

How WAAS Works?
The system consists of roughly 25 ground reference stations positioned across the United States. These ground stations monitor GPS satellite data. Two master stations are located on each coast and these collect data from the reference stations and create a GPS correction message. This correction takes into account GPS satellite orbits, clock drift, and signal delays, typically caused by atmospheric conditions. The corrected differential message is broadcast through one of two geo-stationery satellites or satellites with a fixed equatorial position. Any WAAS-enabled GPS, such as the Earthmate USB GPS, is able to read this signal and benefit from the enhanced accuracy.

WAAS Performance Considerations!
As is true for all GPS usage, the location and environment of the user will cause variability in WAAS performance. For instance, the position of the satellites over the equator make it difficult to receive the signals when mountains or trees obstruct a clear view of the horizon. Therefore, it is safe to say that WAAS provides the best performance in open-area situations. Unlike DGPS (differential GPS), WAAS does not require additional receiving equipment.

• Earthmate GPS LT-20 Receiver
• 5' Attached USB Cable
• Street Atlas USA 2008 DVD-ROM software

Minimum Computer Requirements

Earthmate GPS LT-20 Computer Requirements:

• NMEA-compliant 12-channel receiver 
• WAAS-enabled
• Low-power baseband and RF chip set (RF chip based on the ultra low power silicon germanium BiCMOS process)
• Warm start: < 38 seconds
• Hot start: < 3 seconds
• Full power: 165mW; Sleep mode: < 55mW
• Maximum Velocity: 1000 knots
• Advanced high-sensitivity algorithms for superior tracking in urban environments 
• Weak signal tracking: < 145dBm
• Proprietary Kalman filter for enhanced position accuracy
• Superior noise rejection for high EMI environments

Street Atlas USA Computer Requirements:

• Microsoft windows 2000 (Service Pack 3 and higher) with 64 MB RAM (256 MB recommended)
• Microsoft windows XP (Service Pack 1 and later) with 128 MB RAM (256 MB recommended)
• Microsoft windows Vista Home Basic/Home Premium/Ultimate/Business with 512 MB RAM
• Pentium 300 MHz or higher processor (600 MHz recommended)
• 1.8 GB of available hard-disk space required (700 MB if the data is not installed on the hard drive)
• Microsoft Internet Explorer 5.01 or later
• Compatible with Intel based Macintosh computes running Boot Camp for Microsoft windows XP
• DVD-ROM Drive