GPS ONIX 400
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 (incomplete as of 2008 ), the upcoming European Galileo positioning system , the proposed COMPASS navigation system of China, and IRNSS of India. ONIX 400 Today, the autonomous recreational handheld navigator is often overshadowed by what we have in our cars: the sleek PNDs with the big screens, loads of maps, and streaming traffic updates — all of which are useless in the backcountry. God forbid if you drop one on a rock while you're hiking or taking a fast turn on your all-terrain vehicle. For these reasons alone the market for recreational GPS devices remains brisk, with unswerving devotion from millions of outdoor types...