Keywords: Audiovisual materials, Teaching aids, Educational equipment, Cassettes (magnetic tapes), Magnetic tape recordings, Audio tapes, Audio systems, Recording tracks, Sound tracks, Recording characteristics, Marking, Frequencies, Sound intensity, Acoustic signals, Communication equipment, Audio equipment
Keywords: Telephone equipment, Telephones, Communication equipment, Telecommunication systems, Circuits, Electrical insulation, Electrical resistance, Electrical properties and phenomena, Electrical impedance, Electric power (wattage), Signals, Frequencies, Marking, Instructions for use, Tolerances (measurement), Performance testing, Electrical testing, Testing conditions, Test equipment, Acoustic signals
Keywords: Telephone equipment, Telephones, Communication equipment, Telecommunication systems, Circuits, Electrical insulation, Electrical resistance, Electrical properties and phenomena, Electrical impedance, Electric power (wattage), Signals, Frequencies, Marking, Instructions for use, Tolerances (measurement), Performance testing, Electrical testing, Testing conditions, Test equipment, Acoustic signals, Telephone networks, Communication networks
Keywords: Telephones, Telephone equipment, Simple, Communication equipment, Marking, Circuits, Voltage, Signals, Frequencies, Acoustic signals, Sensitivity, Volume (sound), Signal distortion, Noise (spurious signals), Instructions for use, Testing conditions, Performance testing, Electrical testing, Specimen preparation, Test equipment, Impact testing
Keywords: Telephones, Telephone equipment, Simple, Communication equipment, Marking, Circuits, Voltage, Electric current, Signals, Frequencies, Acoustic signals, Sensitivity, Volume (sound), Signal distortion, Noise (spurious signals), Instructions for use, Testing conditions, Performance, Type testing, Electrical testing, Performance testing, Impact testing, Test equipment
Keywords: Telephone equipment, Communication equipment, Telecommunication systems, Audiofrequencies, Circuits, Telephone networks, Marking, Electrical impedance, Power losses, Electrical testing, Test equipment, Signal level, Acoustic signals, Speech transmission systems, Definitions, Noise (spurious signals), Signal strength, Attenuation, Signal transmission, Direct current
Keywords: Telephone equipment, Telephones, Communication equipment, Telecommunication systems, Telephone networks, Audiofrequencies, Circuits, Signal level, Acoustic signals, Marking, Electrical testing, Noise (spurious signals), Signal strength, Attenuation, Definitions, Signal transmission, Direct current
Keywords: Communication equipment, Telecommunication systems, Signal level, Acoustic signals, Audiofrequencies, Circuits, Marking, Electrical testing, Power losses, Electrical impedance, Telegraph circuits, Telegraph networks, Speech transmission systems, Attenuation, Signal strength, Modems
Keywords: Recording equipment, Recording engineering, Acoustic equipment, Acoustic engineering, Audio equipment, Amplifiers, Electronic equipment and components, Reverberation, Acoustic properties and phenomena, Acoustic variables control, Acoustic signals, Signal processing, Delay circuits, Time, Sound generators, Frequency control, Reverberation time, Acoustic measurement, Frequency response, Acoustic testing, Audio amplifiers, Public-address systems, Communication equipment
Keywords: Recording equipment, Recording engineering, Acoustic equipment, Acoustic engineering, Audio equipment, Amplifiers, Electronic equipment and components, Reverberation, Acoustic properties and phenomena, Acoustic variables control, Acoustic signals, Signal processing, Delay circuits, Time, Sound generators, Frequency control, Reverberation time, Acoustic measurement, Frequency response, Acoustic testing, Audio amplifiers, Public-address systems, Communication equipment
Keywords: Sound recording, Recording systems, Digital signals, Binary digits, Video tape recorders, Recording equipment, Digital recording methods, Pulse-code modulation, Audio equipment, Audio systems, Acoustic signals, Coding (data conversion), Signal processing, Error correction, Data blocks, Pulse modulation
Keywords: Sound recording, Recording systems, Digital signals, Binary digits, Video tape recorders, Recording equipment, Digital recording methods, Pulse-code modulation, Audio equipment, Audio systems, Acoustic signals, Coding (data conversion), Signal processing, Error correction, Data blocks, Pulse modulation
Keywords: Alarm systems, Warning devices, Telephone networks, Information transfer, Digital signals, Control functions, Data transmission, Messages, Codes, Acoustic signals, Telephone signalling equipment, Special-purpose alarms
Keywords: Video tape recordings, Magnetic tape recordings, Magnetic tapes, Cassettes (magnetic tapes), Sound recording, Sound tracks, Recording tracks, Frequency modulation, Recording characteristics, Dimensions, Angles (geometry), Acoustic signals, Recording systems
Keywords: Railway equipment, Railway vehicles, Warning devices, Signal devices, Acoustic signals, Audible warning devices, Horns, Railway vehicle components, Approval testing, Performance testing, Railway applications
Keywords: Electric connectors, Electrical household appliances, Domestic, Electronic equipment and components, Electrical components, Television receivers, Television equipment, Video tape recorders, Electric plugs, Electric sockets, Electric pins, Multicontact connectors, Numerical designations, Layout, Digital signals, Acoustic signals, Video signals, Monochrome television, Colour television, Electrical impedance, Electrical resistance, Voltage, Frequencies, Electrical properties of materials, Flexible conductors, Colour, Signals, Electrical measurement, Testing conditions
Keywords: Electric connectors, Electrical household appliances, Domestic, Electronic equipment and components, Electrical components, Television receivers, Television equipment, Video tape recorders, Electric plugs, Electric sockets, Electric pins, Multicontact connectors, Numerical designations, Layout, Digital signals, Acoustic signals, Video signals, Monochrome television, Colour television, Electrical impedance, Electrical resistance, Voltage, Frequencies, Electrical properties of materials, Flexible conductors, Colour, Signals, Electrical measurement, Testing conditions
Keywords: Wire transmission (telecommunication), Telecommunication systems, Telecommunication, Communication networks, Cable television, Television networks, Broadcasting networks, Visual signals, Acoustic signals, Electromagnetic compatibility, Video signals, Television broadcasting, Central-antenna television, Television systems
Keywords: Wire transmission (telecommunication), Telecommunication systems, Telecommunication, Communication networks, Cable television, Television networks, Broadcasting networks, Visual signals, Acoustic signals, Electromagnetic compatibility, Video signals, Television broadcasting, Central-antenna television, Television systems
Keywords: Wire transmission (telecommunication), Telecommunication systems, Telecommunication, Communication networks, Cable television, Television networks, Broadcasting networks, Visual signals, Acoustic signals, Television systems, Television channels, Radio networks, Radio disturbances, Radio channels, Coaxial cables, Frequency modulation, Environment (working), Performance testing, Testing conditions, Electrical measurement, Test equipment, Circuits, Calibration, Performance, Electrical impedance, Signal level, Signal distortion, Noise (spurious signals), Signal-to-noise ratio, Frequency response, Reception
Keywords: Wire transmission (telecommunication), Telecommunication systems, Telecommunication, Communication networks, Cable television, Television networks, Broadcasting networks, Visual signals, Acoustic signals, Electromagnetic compatibility, Electromagnetic radiation, Radio disturbances
Keywords: Wire transmission (telecommunication), Telecommunication systems, Telecommunication, Communication networks, Cable television, Television networks, Broadcasting networks, Visual signals, Acoustic signals, Transport layer (OSI), Open systems interconnection, Data transmission, Coaxial cables, Fibre optics, Packets (data transmission)
Keywords: Electronic equipment and components, Electric connectors, Electrical connections, Audiovisual materials, Television equipment, Communication equipment, Domestic, Domestic electrical installations, Electrical components, Video tape recorders, Television receivers, Electric plugs, Electric sockets, Force, Compatibility, Electric conductors, Electric cables, Marking, Marks, Shape, Colour, Size, Position, Control signals, Signals, Signal transmission, Series connection, Conformity, Video signals, Acoustic signals, Measurement
Keywords: Electronic equipment and components, Electric connectors, Electrical connections, Audiovisual materials, Television equipment, Communication equipment, Domestic, Domestic electrical installations, Electrical components, Video tape recorders, Television receivers, Signals, Quality, Control signals, Video signals, Acoustic signals, Series connection, Signal processing, Signal transmission, Signal devices, Electric plugs, Electric sockets, Electric contacts, Conformity, Frames (data transmission), Binary digits, Compatibility, Error detection
Keywords: Interfaces, Digital video broadcasting, Broadcasting, Video signals, Digital signals, Receivers, Television receivers, Television equipment, Decoding, Videofrequencies, Modems, Electric connectors, Electric pins, Analogue signals, Acoustic signals, Signals
Keywords: Fire alarms, Alarm systems, Fire detectors, Fire safety in buildings, Warning devices, Speech, Acoustic signals, Audible warning devices, Public-address systems, Control equipment, Signal devices, Performance testing
Keywords: Fire alarms, Alarm systems, Fire detectors, Fire safety in buildings, Fire safety, Warning devices, Control equipment, Signal devices, Performance, Defects, Acoustic signals, Computerized control, Computer software, Indicator lights, Colour, Visual signals, Marking, Electric power systems, Control systems, Testing conditions, Type testing, Specimen preparation, Electrical testing, Performance testing, Environmental testing, Damp-heat tests, Cold tests, Impact testing, Vibration testing, Vibration, Design
Keywords: Fire alarms, Alarm systems, Fire detectors, Fire safety in buildings, Warning devices, Speech, Acoustic signals, Audible warning devices, Public-address systems, Loudspeakers, Performance, Environment (working), Acoustics, Acoustic measurement, Performance testing, Environmental testing, Conformity
Keywords: Fire alarms, Alarm systems, Fire detectors, Fire safety in buildings, Fire safety, Warning devices, Acoustic signals, Sound generators, Electrically-operated devices, Performance, Acoustic testing, Environment (working), Environmental testing
Keywords: Fire alarms, Alarm systems, Fire detectors, Fire safety in buildings, Fire safety, Warning devices, Control equipment, Signal devices, Performance, Design, Defects, Acoustic signals, Visual signals, Marking, Electric power systems, Control systems, Technical documents, Type testing, Specimen preparation, Electrical testing, Performance testing, Environmental testing, Voltage, Electrical equipment, Electrostatics, Electric discharges, Transient voltages, Cold tests, Damp-heat tests, Impact testing, Vibration, Vibration testing, Burst tests, Endurance testing, Testing conditions, Immunity tests
Keywords: Television, Television receivers, Television equipment, Television broadcasting, Telecommunication transmission methods, Display devices, Radiofrequencies, Video signals, Acoustic signals, Radio disturbances, Luminance, Colour, Chromaticity, Liquid crystal devices, Errors, Phase modulation, Automatic frequency control, Cathode-ray tubes
Keywords: Television, Television receivers, Television equipment, Television broadcasting, Telecommunication transmission methods, Display devices, Radiofrequencies, Video signals, Acoustic signals, Radio disturbances, Luminance, Colour, Chromaticity, Liquid crystal devices, Errors, Phase modulation, Automatic frequency control, Cathode-ray tubes
Keywords: Television, Television receivers, Television equipment, Television broadcasting, Telecommunication transmission methods, Performance testing, Acoustic signals, Audiofrequencies, Frequencies, Frequency measurement, Acoustic measurement, Frequency response, Signal distortion, Noise (spurious signals), Sensitivity, Signal-to-noise ratio, Frequency modulation, Modulation, Voltage, Volume (sound), Monophonic recording
Keywords: Television, Television receivers, Television equipment, Television broadcasting, Telecommunication transmission methods, Performance testing, Acoustic signals, Audiofrequencies, Frequencies, Frequency measurement, Acoustic measurement, Frequency response, Signal distortion, Noise (spurious signals), Sensitivity, Signal-to-noise ratio, Frequency modulation, Modulation, Voltage, Volume (sound), Monophonic recording
Keywords: Television, Television receivers, Television equipment, Television broadcasting, Telecommunication transmission methods, Telecommunication, Television channels, Broadcasting, Sound broadcasting, Communication equipment, Performance testing, Electrical measurement, Frequency measurement, Audiofrequencies, Acoustic signals, Testing conditions, Digital recording methods, Digital signals, Signal processing
Keywords: Television, Television receivers, Television equipment, Television broadcasting, Telecommunication transmission methods, Telecommunication, Television channels, Broadcasting, Sound broadcasting, Communication equipment, Performance testing, Electrical measurement, Frequency measurement, Audiofrequencies, Acoustic signals, Testing conditions, Digital recording methods, Digital signals, Signal processing
Keywords: Television, Television receivers, Television equipment, Television broadcasting, Telecommunication transmission methods, Display devices, Signals, Video signals, Acoustic signals, Signal transmission, Reception, Electrical measurement, Mechanical testing, Performance, Performance testing, Luminance, Errors, Liquid crystal devices, Optoelectronic devices, Optical measurement, Synchronization, Signal distortion, Patterns, Quality, Chrominance
Keywords: Television, Television receivers, Television equipment, Television broadcasting, Telecommunication transmission methods, Display devices, Signals, Video signals, Acoustic signals, Signal transmission, Reception, Electrical measurement, Mechanical testing, Performance, Performance testing, Luminance, Errors, Liquid crystal devices, Optoelectronic devices, Optical measurement, Synchronization, Signal distortion, Patterns, Quality, Chrominance
Keywords: Television, Television receivers, Television equipment, Television broadcasting, Telecommunication transmission methods, Signals, Performance, Radio disturbances, Assessed quality, Receivers, Radiofrequencies, Video signals, Acoustic signals, Frequency measurement, Acoustic measurement, Frequency response, Signal distortion, Noise (spurious signals), Digital signals, Frequency modulation, Modulation
Keywords: Television, Television receivers, Television equipment, Television broadcasting, Telecommunication transmission methods, Signals, Performance, Radio disturbances, Assessed quality, Receivers, Radiofrequencies, Video signals, Acoustic signals, Frequency measurement, Acoustic measurement, Frequency response, Signal distortion, Noise (spurious signals), Digital signals, Frequency modulation, Modulation
Keywords: Hearing aids, Aids for the disabled, Acoustoelectric devices, Medical equipment, Circuits, Electrical safety, Compatibility, Acoustic signals, Input impedance, Sensitivity, Electric connectors
Keywords: Hearing aids, Aids for the disabled, Acoustoelectric devices, Medical equipment, Circuits, Electrical safety, Compatibility, Acoustic signals, Input impedance, Sensitivity, Electric connectors
Keywords: Telecommunication, Radio receivers, Radio equipment, Radiocommunication, Sound broadcasting, Satellite links, Digital signals, Acoustic signals, Tuning, Electrical wave measurement, Performance testing, Testing conditions, Test equipment, Circuits, Signal distortion, Signal level, Noise (spurious signals), Intermodulation, Amplification, Phase measurement (electric), Attenuation, Frequency response, Errors, Electromagnetic compatibility
Keywords: Telecommunication, Radio receivers, Radio equipment, Radiocommunication, Sound broadcasting, Satellite links, Digital signals, Acoustic signals, Tuning, Electrical wave measurement, Performance testing, Testing conditions, Test equipment, Circuits, Signal distortion, Signal level, Noise (spurious signals), Intermodulation, Amplification, Phase measurement (electric), Attenuation, Frequency response, Errors, Electromagnetic compatibility
Keywords: Telecommunication, Radio receivers, Radio equipment, Radiocommunication, Sound broadcasting, Satellite links, Digital signals, Acoustic signals, Tuning, Electrical wave measurement, Performance testing, Testing conditions, Test equipment, Circuits, Signal distortion, Signal level, Noise (spurious signals), Intermodulation, Amplification, Phase measurement (electric), Attenuation, Frequency response, Errors, Electromagnetic compatibility
Keywords: Telecommunication, Radio receivers, Radio equipment, Radiocommunication, Sound broadcasting, Receivers, Emission, Radiofrequencies, Electrical wave measurement, Sensitivity, Phase, Errors, Frequency measurement, Acoustic signals
Keywords: Telecommunication, Radio receivers, Radio equipment, Radiocommunication, Sound broadcasting, Receivers, Emission, Radiofrequencies, Electrical wave measurement, Sensitivity, Phase, Errors, Frequency measurement, Acoustic signals
Keywords: Telecommunication, Radio receivers, Radio equipment, Radiocommunication, Sound broadcasting, Receivers, Emission, Radiofrequencies, Electrical wave measurement, Sensitivity, Phase, Errors, Frequency measurement, Acoustic signals
Keywords: Medical equipment, Electrical medical equipment, Electrical equipment, Electronic equipment and components, Hospital equipment, Warning devices, Signals, Acoustic signals, Visual signals, Indicator lights, Flashing lights, Alarm systems, Legibility, Grades (quality), Colour, Harmonics, Sound intensity, Frequencies
Keywords: Medical equipment, Electrical medical equipment, Electrical equipment, Electronic equipment and components, Hospital equipment, Warning devices, Signals, Acoustic signals, Visual signals, Indicator lights, Flashing lights, Alarm systems, Legibility, Grades (quality), Colour, Harmonics, Sound intensity, Frequencies
Keywords: Audiometers, Acoustic equipment, Calibration, Acoustic measurement, Acoustic engineering, Audiometry, Audiology, Acoustic signals, Neurology, Signals, Instructions for use
Keywords: Wire transmission (telecommunication), Telecommunication systems, Telecommunication, Communication networks, Cable television, Television networks, Broadcasting networks, Visual signals, Acoustic signals, Television systems, Television channels, Radio networks, Radio disturbances, Radio channels, Coaxial cables, Frequency modulation, Environment (working), Performance testing, Testing conditions, Electrical measurement, Test equipment, Circuits, Calibration, Performance, Electrical impedance, Signal level, Signal distortion, Noise (spurious signals), Signal-to-noise ratio, Frequency response, Reception
Keywords: Wire transmission (telecommunication), Telecommunication systems, Telecommunication, Communication networks, Cable television, Television networks, Broadcasting networks, Visual signals, Acoustic signals, Performance, Central-antenna television, Signal level, Signal transmission, Frequencies
Keywords: Wire transmission (telecommunication), Telecommunication systems, Telecommunication, Communication networks, Cable television, Television networks, Broadcasting networks, Visual signals, Acoustic signals, Television systems, Central-antenna television, Safety measures, Occupational safety, Electrical safety, Equipment safety, Television equipment, Earthing, Protected electrical equipment, Television antennas, Lightning protection, Wind loading, Antenna masts, Video signals, Communication equipment, Transmitters, Receivers, Amplifiers, Optical fibres
Keywords: Wire transmission (telecommunication), Telecommunication systems, Telecommunication, Communication networks, Cable television, Television networks, Broadcasting networks, Visual signals, Acoustic signals, Coaxial cables, Amplifiers, Wideband amplifiers
Keywords: Wire transmission (telecommunication), Telecommunication systems, Telecommunication, Communication networks, Cable television, Television networks, Broadcasting networks, Acoustic signals, Television systems, Video signals, Electronic equipment and components, Communication equipment, Coaxial cables, Electrical connections, Passive filters, Performance, Rated frequencies, Grades (quality), Performance testing, Test equipment, Calibration, Acoustic measurement, Joints, Attenuation, Power losses, Error correction
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