Garmin introduces the Garmin Colorado 400T. The latest handheld GPS that is packed with Topographical maps. A 3-D map view, a high-sensitivity receiver (works deep in the canyon), barometric altimeter, electronic compass, SD card slot, picture viewer and color display. Exchange tracks, waypoints, routes and geocaches wirelessly between similar units. When the going gets tough, Colorado leads the way.
The Global Positioning System (GPS) is the only fully functional Global Navigation Satellite System (GNSS). Utilizing a constellation of at least 24 Medium Earth Orbit satellites that transmit precise microwave signals, the system enables a GPS receiver to determine its location, speed, direction, and time. Other similar systems are the Russian GLONASS, the upcoming European Galileo positioning system, the proposed COMPASS navigation system of China, and IRNSS of India.
Developed by the United States Department of Defense, GPS is officially named NAVSTAR GPS. The satellite constellation is managed by the United States Air Force 50th Space Wing. The cost of maintaining the system is approximately $750 million per year, including the replacement of aging satellites, and research and development.
The device are most popular consumers as handheld GPS mounts for the automobile.
There are too many horror stories about people going out for a fun day in the water and getting lost for hours or days. Avoid the dangers of going astray by purchasing a Garmin handheld GPS unit. In doing so, you’ll have the security of you and your loved ones all in one little electronic apparatus and you won’t have to worry about reading the map upside down.