From the bloggers at Techno RV.
I don’t know why I’m hung up on how stuff works this month, but GPS is another one that is worth being knowledgeable about.
A good GPS system has advantages over using your iPad or similar tablet as a GPS, specifically, no cellular signal is needed to load maps, and we will talk more about this in a moment.
An RV GPS, like the Rand McNally, works by using the Global Positioning System (GPS) put into place by the U.S. Department of Defense in 1973. The space-based navigation system works in all weather conditions as long as there is an unobstructed line-of-sight to at least 4 or more GPS satellites.
The U.S. government created the system, maintains it and provides it for free to anyone that has a GPS receiver; it does not require Wi-Fi or cellular service. GPS consists of 3 segments: the space segment, the control segment, and the user segment.
To read the full story by Techno RV, click here.