| Replaces |
BS 3939 Section 22:1971, BS 3939 Section 9:1967, BS 3939 Section 26:1970, BS 3939 Section 25:1970, BS 3939 Section 27:1972, BS 3939 Section 24:1970, BS 3939:Introduction:1966, BS 3939 Section 28:1972, BS 3939 Section 30:1978, BS 3939 Section 23:1978, BS 3939 Section 29:1978, BS 3939 Section 20:1968, BS 3939 Section 21:1977, BS 3939:Guiding principles:1970
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| Descriptors |
Symbols, Radio stations, Lasers, Waveguides, Radio equipment, Antennas, Microwave devices, Pulse modulation, Communication transmission lines, Graphic representation, Radio transmitters, Amplifiers, Multiplexing, Electric filters, Couplers, Attenuators, Signal generators, Masers, Graphic symbols, Radio antennas, Fibre optics, Data representation, Amplification, Circuit diagrams, Boxes (electric), Demodulators, Discriminators, Switching circuits, Modulators, Communication networks, Block diagrams, Frequencies, Radiofrequencies
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