Use DeLorme AG-009871-201 inReach SE as the real Global GPS Tracker and satellite communicator in the area without cellular coverage. Satellite-based voice communication and data transfer were available already back in last decades of 20-is century. Mainly satellite communication means were on commercial transcontinental shipping routes vessels and remote oil rigs. As a rule, they were wealthy companies which could … Continue reading DeLorme InReach SE GPS Tracker is Independent of the Cellular Network