Round plug connectors; Receivers of electronic signals; Resistances, electric; Apparatus for transmission of communication; Electric resistors for telecommunication apparatus; Radio receivers and transmitters; Electrical terminal blocks; Transmitters of electronic signals; Radio-frequency transmitters; Radio-frequency receivers; Electrical annunciators; Electrical signal attenuators; Electric connections and connectors; Radio receivers and radio signal tuners; Plug-in connectors; Signal band ...

antenna monitoring and control system comprised of electronic devices for monitoring antenna systems and radio frequency (RF) transmission lines, measuring the degradation of antenna systems and RF transmission lines, and detecting interference with and disruption to antenna systems and RF transmission lines; radio-frequency monitoring and control system comprised of electronic devices for monitoring antenna systems and RF transmission lines, measuring the degradation of antenna systems and R...