Optical frequency metrology devices; Communication radio wave measuring apparatus, namely, surface acoustic wave sensor; Frequency analyzer for communication, namely, frequency meters; Frequency generator for communication, namely, radio frequency generators for supplying radio-frequency energy; High-frequency apparatus, namely, frequency strength and efficiency meters and testers for measuring the efficiency of wireless communications; Radar machines and apparatus; Devices for wireless radio transmission; Broadband wireless equipment, namely, telecommunications base station equipment for cellular and fixed networking and communications applications; Telecommunication base stations; Remote control apparatus, namely, frequency strength and efficiency meters and testers with remote communication capability for measuring the efficiency of wireless communications featuring optimization tools; Remote control telemetering machines and apparatus; Electronic communications systems comprised of computer hardware and recorded software for the transmission of data between two points; Apparatus for transmitting and reproducing sound or images; Frequency converters; Downloadable computer software for encryption; Downloadable network management software; Downloadable electronic publications in the nature of magazines in the field of communication; Multi-channel radio communication machines and apparatus for fixed stations; Portable telecommunications apparatus, namely, portable telecommunication instant messaging devices; Downloadable telecommunication base station management software; Downloadable computer programs and software for measuring the efficiency of wireless communication devices