IS 12193 Pt.3-1994 Methods of measurement of various emission categories of radio receivers Part 3 Radio frequency measurements of FM sound broadcasting transmitters and receivers
This part describes methods of measurements to be applied to radio receivers (with or without audio amplifiers) designed for monophonic and stereophonic frequency modulated sound broad-cast transmissions in ITU band 8 (VHF). Most of the methods are applicable to receivers designed for such broadcast transmission in other bands. It is intended to be used with IEC Publications 315-1: Methods of Measurement on Radio Receivers for Various Classes of Emission, Part 1: General Conditions for Measurements and Measuring Methods Applying to Several Types of Receivers, and 315-2: Part 2: Measurements Particularly Related to the Audio-frequency Part of a Receiver, in which general conditions and methods of measurement are given for various charac-teristics which are deemed to be applicable to all types of receivers.
notes 1. — Methods of measurement of the immunity to impulsive interference entering through the antenna circuit are contained in IEC Publication 315-5. Part 5: Specialized Radio-frequency Measurements — Measurement on Frequency-modulated Receivers of the Response to Impulsive Interference.
2. — For the measurement of radiation from receivers, reference is made to IEC Publication 106: Recommended
Methods of Measurement of Radiated and Conducted Interference from Receivers for Amplitude-modulation, Frequency-modulation and Television Broadcast Transmissions.
3. — F.M. broadcasting system characteristics are described in C.C.I.R. Recommendation 412-4. Stereophonic sys-
tems are described in C.C.I.R. Recommendation 450.
4. — See Table IV of I EC Publication 315-1. ITU Band 8 is defined in ITU Publication Radio Regulations
(Geneva)
IS 12193 Pt.3-1994 history
1994IS 12193 Pt.3-1994 Methods of measurement of various emission categories of radio receivers Part 3 Radio frequency measurements of FM sound broadcasting transmitters and receivers