Design and construction Radio circuits Equipment and supplies 10 Wireless communication systems 10 Radio frequency 8 Integrated circuits 5 Microwave circuits 4 Radio 4 Transmitter-receivers 4 Very high speed integrated circuits 4 Metal oxide semiconductors, Complementary 2 Bipolar integrated circuits 1 Cellular telephones 1 Circuits 1 Design 1 Electronic analog computers 1 Electronic circuit design 1 Electronic circuits 1 Electronic noise 1 Electronics 1 Frequency synthesizers 1 Linear integrated circuits 1 Microwave integrated circuits 1 Noise 1 Phase locked loops 1 Radio frequency integrated circuits 1 Radio frequency oscillators 1 Telecommunication 1 Telephone 1 Television circuits 1