equipment to be used with radio, cellular personal communications service and telephone communications systems and components therefor, namely, antennas, electrical and electronic devices for improving or modifying transmission and/or reception characteristics of antennas and of radio telephones, namely, antenna mounts, transmitters, receivers and transceivers and parts thereof, boosters, repeaters, distributed antennas, base stations, controllers, private branch exchanges, mobile telephone switching offices, filters, duplexers, conductors, cables, connectors, and couplers, and parts and sub-assemblies thereof, call processing software and specialized digital signal processing software for use in the radio, cellular and personal communications service frequencies, fiber optic transceivers for transmitting and receiving information for radio, cellular and personal communications service frequencies, for telephone, and for cable television, and units for testing, measuring and characterizing the RF signal properties in the radio, cellular and personal communications service frequencies