Abstract: Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.

Abstract: An apparatus and system for placing, or resetting, power line cable to a power support structure, such as a transmission tower includes a remote aerial manipulation platform”) utilizing an unmanned aerial vehicle containing a bracket and a rotatable spool attached to the bracket. The spool includes a length of pre-lead line wound on the body of the spool. A reel system on the unmanned aerial vehicle provides appropriate tension to the rotatable spool. A control system enables the transmission of informational messages from the unmanned aerial vehicle to a ground control system.

Abstract: A repairable short-path still is manufactured by forming the still body containing the cooling jacket and the vacuum adapter with two ring seals.