The Technology Behind Hand held GPS Devices
frequencies and kinematic (On-The-Fly), real-time, signal processing are more accurate than those using a single frequency and static, post-processing.
There are optional features in Wilderness GPS DEVICES that are less necessary for other applications but extraordinarily helpful for wilderness applications are included compasses, barometers, and altimeters. Some portable units can even receive weather forecasts so you will never be caught off guard by a sudden storm.
Furthermore, it is a device’s ability to communicate with other receivers in the area to send emergency voice communications and the ability to communicate with other receivers in the area to send emergency voice communications and the ability to broadcast an emergency beacon should you find yourself cut off and distress.
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