Lewis Perdue





Navstar GPS Internet Connections



Trimble GPS is at work all over the world, solving some of

humankind's most vexing problems - from surveying roads to

improving the efficiency of cellular paging networks, from

instantaneously dispatching emergency vehicles to mapping the

damage from earthquakes, from navigating the featureless China

desert to recording and synchronizing financial transactions around the

world. Trimble is a leading solutions provider in each of the areas in

which we do business.



A tutorial in the basic principles behind GPS

technology

In this section we'll answer the questions:

Why was GPS developed?

What is GPS?

How does GPS work?

How does Differential GPS work?

How is GPS being put to work?



rimble is the leading designer and manufacturer of GPS

equipment in marine navigation, marine survey systems and

communications systems. With over 600 worldwide authorized

dealers Trimble provides superior customer service and support. n 1984, Trimble gave mariners their first commercial GPS receiver.

Since then it's continued to produce the most innovative products in

marine navigation, marine survey systems and communications

systems. Trimble navigation products range from handheld receivers

to fully integrated DGPS/charting systems.

Sperry Marine has selected Trimble as the preferred provider of GPS

receivers. Sperry, which provides precise positioning information for

commercial ship navigation, uses the Trimble NT200 and NT200D as

part of their integrated navigation systems.

Trimble was awarded the U.S. Coast Guard contract to provide 326

custom NT200's, for use in the USCG's Aids to Navigation (ATON)

vessels. The vessels are being used to place and maintain more than

50,000 buoys, day markers and lights throughout the U.S. coastal

waters and inland navigable rivers.

The NavGraphicXL is a complete marine navigation system

that includes the largest graphic display of any GPS-based marine

navigation system on the market. The system, which is comprised of

four easy-to-install modules, includes a ruggedized CD-ROM reader

for reading digitized versions of NOAA charts. Using these charts,

mariners can view real-time vessel position relative to depth contours,

landmarks, hazards and buoys.

Other system components include a slim, sophisticated navigation

computer and a differential-ready, 6-channel GPS sensor. Mariners

can use differential corrections for precision navigation with the help

of the Trimble’s NavBeaconXL or other differential beacon receiver.

Back-lit LCD 9.5 inch display provides wide viewing angles

and exceptional contrast.

Three NMEA-0183 ports provide links to other navigation

devices including radars, autopilots, fish finders and depth

sounders.



Electronic Charts Simplified



A PRACTICAL GUIDE TO GPS

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download