Testing and analysis services in the field of wiring systems products for the transmission of voice, video, data and power applications including electrical and electronic cable, structured wiring systems, structured wiring components, tools and test equipment used in the installation of wiring system products, distribution electronics equipment comprising amplifiers, head and electronics equipment comprising signal processors, signal modulators and satellite receivers, hardware and test equipment used in the installation of distribution electronics equipment and head end electronics equipment, industrial video and broadband local area networks comprising satellite receivers, television modulators, signal processors, combining networks, head end stereo encoders, broadband antennas, broadband CATV distribution electronics, broadband coaxial cable, connectors and heat shrink products, drop and installation materials, aerial construction headware, tools and safety equipment, CATV fiber optic system products and in the field of electrical wire and cable comprising power and control cables, construction and building wire and cable, control instrumentation thermocouple wire and cable, armored power and control cable, electronic and computer wire and cable, coaxial cable, telephone wire and cable, military wire and cable, shipboard cable and fiber optical cable