Antennas, phase controllers, block converters, converters, mixers, separators, filters, level controllers, pre-amplifiers, headends, modulators, channel permuters, amplifiers, signal generators, power units, boosters, tap-offs, splitters, couplers, cables, transmitters, receivers, tuners, connectors, outlets, connections, modems, matching transformers, protectors, field-strength meters, connection caps, attenuators, plugs, computer software for satellite communication applications