This read-write TruthValue both reports and controls whether the modem's built-in GPS receiver is enabled. An admin managing routers that use cellular-modem GPS for location tracking or time synchronization would use this object to turn GPS on where needed and off where it isn't, for example to save power. For example, an admin deploying a fleet-tracking router might set this to true so the device's location can be queried via the modem's GPS state.