Browse this GPS navigation directory for information about GPS - Global Positioning System - navigation solution providers in the USA. The photo on this page depicts a GPS navigation system.
A hunter, wearing an orange hat and orange coat for safety, consults a handheld GPS. The hand holding the GPS is wearing a camouflage glove. The hunter will use the GPS to determine his location and find his way in and out of the woods.
Global positioning system (GPS) units pick up signals from GPS satellites to calculate the latitude and longitude of the user. Hand-held units are convenient for cyclists, hikers, mountain climbers, and hunters.
Atomic clocks operate by using the vibration of cesium or rubidium atoms to set very precise time, and are the standard in timekeeping as they are the most accurate clocks available.