The Globalstar Simplex Modem or Simplex Transmitter Unit (STX-2) are designed to deliver reliable one-way digital data communications for remote sensing, tracking and monitoring applications.
The STX-2 is a low cost, simplex module once integrated into a tracking or monitoring device, provides the ability to send packet-switched data automatically on a time or event driven basis. The module can be used in a wide range of assets including liquid petroleum gas (LPG) tanks, water tanks, pipelines, electricity meters, cars, trucks, boats, human tracking devices and sea or land containers.