BS 4727-3 Group 07-1971
电工、电力、电信、电子学、照明和颜色术语.第3部分:电信和电子学专用术语.第07集:无线电通信术语

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适用范围: GLOSSARY OF ELECTROTECHNICAL, POWER, TELECOMMUNICATION, ELECTRONICS, LIGHTING AND COLOUR TERMS Co-operating organizations Guide to the glossary Foreword 307 1 GENERAL 307 11 Radiocommunication terms 307 12 Electromagnetic waves. Classification of radio waves 307 13 Carrier modulation 307 14 Noise and interference 307 2 AERIALS 307 21 Aerials, elements and components 307 22 Aerials, electrical characteristics and directivity 307 23 Types of aerial 307 24 Microwave aerials 307 3 TRANSMITTING AND RECEIVING EQUIPMENT 307 31 Designation of emissions 307 32 Radio transmitters 307 33 Reception and radio receivers 307 4 RADIO TELEGRAPHY ALPHABETICAL INDEX