Abstract: A multibeam antenna is provided comprising a direct radiating array, DRA, and a reflector arranged to reflect signals radiated from the DRA in a transmission mode and to reflect signals to the DRA in a reception mode. The antenna is a very high throughput satellite (VHTS) antenna providing global coverage with narrow, high gain beams.

Abstract: Disclosed are a calibration system and method for correction of tracking drifts in the output section of a satellite payload and a beamforming network. The disclosed technique exploits characterisation of path gain and phase tracking drifts as deterministic errors that can be measured over spacecraft lifetime without statistical approximations, and thereafter predicted for in-orbit daily temperature variations. Also disclosed is a satellite payload for transmitting test signals to the calibration system.

Abstract: Disclosed are a calibration system and method for correction of tracking drifts in the output section of a satellite payload and a beamforming network. The disclosed technique exploits characterisation of path gain and phase tracking drifts as deterministic errors that can be measured over spacecraft lifetime without statistical approximations, and thereafter predicted for in-orbit daily temperature variations. Also disclosed is a satellite payload for transmitting test signals to the calibration system.

Abstract: A method for locating a machine includes collecting machine data from a first machine over a communications network. The machine data for the first machine includes data reflecting at least one operational parameter associated with the first machine. The method also includes determining that the first machine is missing based on the collected machine data and receiving, from the first machine, over the communications network, a location message including location data reflecting a geographic location of the first machine. The method further includes sending a notification message to a first entity including data reflecting a status of the first machine and the location data, and sending a command to the first machine to control at least one operation of the first machine based on determining that the first machine is missing.

Abstract: A data communication system for a component of a machine includes a control module configured to monitor at least one type of machine data associated with the machine component configured to be mounted on the machine. The data communication system also includes a processor device configured to receive and process the machine data from the control module, and a transceiver device configured to communicate with the processor device and at least one off-board system. The processor device, the transceiver device, and the control module are formed integral with the machine component such that the data communication system communicates the machine data to the at least one off-board system when the machine component is not mounted on the machine.

Abstract: A method for locating a machine includes collecting machine data from a first machine over a communications network. The machine data for the first machine includes data reflecting at least one operational parameter associated with the first machine. The method also includes determining that the first machine is missing based on the collected machine data and receiving, from the first machine, over the communications network, a location message including location data reflecting a geographic location of the first machine. The method further includes sending a notification message to a first entity including data reflecting a status of the first machine and the location data, and sending a command to the first machine to control at least one operation of the first machine based on determining that the first machine is missing.