This article doesn’t make sense because Inmarsat-41 is not a GPS satellite, so the farm equipment must have been relying on it for something other than “their G

This article doesn’t make sense because Inmarsat-41 is not a GPS satellite, so the farm equipment must have been relying on it for something other than “their GPS signal”. It would be nice to know what that something was, so that similar single points of failure can be avoided in the future.