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Garmin eTrex Venture

 
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Or DGPS and WAAS?

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Overview of GPS devices from handhelds to watches:
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GPS Products
Hardware:
Earthmate GPS
Garmin GPS
Magellan GPS
Navman GPS
Software:
Delorme Mapping
Garmin MapSource
Garmin Charting
Magellan MapSend

Using GPS to locate something or someone:
GPS Tracking

Increase the usefulness of your device with:
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Garmin eTrex Venture

In between a bare-bones plotter, which has only the reference points you create, and a GPS receiver with an electronic map, is the Garmin eTrex Venture. Even if you love the wilderness, you'll probably want to return to civilization. And the Venture can direct you to cities, restaurants, hotels, and points of interest stored in it's memory.

Built into the Garmin eTrex Venture is a worldwide database of cities with a population of 200,000 or more. In addition, it has 1 MB of internal memory for storing data from the optional MapSource Points of Interest CD. The CD has points for interest for land or water use and includes such things as ATMs, movie theaters, and hospitals, listing their names and addresses. On the water it can show you buoys, lights, and obstructions, among other marine points of interest. The data is transferred from a PC to the Venture using the interface cable provided.

Contained within its waterproof, translucent green case, is a 12-channel GPS receiver. The eTrex Venture is Wide Area Augmentation System (WAAS) capable to provide accuracy to within three meters. It's also ready to accept correction information from a Differential GPS (DGPS) beacon receiver. With DGPS, position errors are within one to five meters.

Five display screens are used for the main functions of the Garmin eTrex Venture. For keeping an eye on the GPS satellites being tracked, there's the Satellite Page. This screen view has an image of the satellites' location and their relative signal strength. Your location coordinates, elevation, and an estimate of position calculation accuracy is shown numerically.

Navigation information is found on the Map, Navigation, and Trip Computer Pages. The Map Page shows your location, the area points of interest, the route to your destination, and the map scale. As you move towards your destination, the route line is replaced by your actual path and saved by the track log. With its zoom and pan controls, you can change the map scale and area viewed, to get the perspective you want. The eTrex Venture gives you three ways to reach your destination. For a straight line path to the destination, the Goto method is used. The Track method uses a previous path from the track log, going in either direction. And the route method is for trips which combine several intermediate destinations.

For finding the direction to your destination, the Garmin eTrex Venture has the Navigation Page. It shows the name of your destination, the distance and estimated time to arrival, and a compass image with your heading and the destination's bearing. At the bottom of the screen are two data fields which display navigation items of your choice, such as elevation and total distance traveled. The Map Page also has two optional data fields for information you choose. And the Trip Computer Page displays only the data you select, with space for up to eight items.

The fifth main page of the eTrex Venture is the Main Menu Page. From this display you can access the functions for marking and creating new waypoints, finding cities in the database or installed points of interest, create routes, set options, and use the accessories (a calendar, an area calculator, and sun, moon, hunting, and fishing data). Also displayed on the page is the time, date, and approximate remaining battery power.

Including its two AA batteries, the Garmin eTrex Venture weighs only 5.3 ounces and measures 2.0" W x 4.4" H x 1.2" D. The grayscale LCD screen has adjustable contrast to handle changing light conditions. And it's also backlit for use in darkness. The batteries will last up to 20 hours of use and to avoid unnecessary battery drain, there's a backlight shutoff timer. The timer turns off the backlight after a period you select from 15 seconds to 2 minutes.






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