scope:

This standard applies to transposers, as defined in Clause 3, operating in accordance with current CCIR Recommendation 450 for FM sound broadcasting at HF, including stereophony. It also covers requirements for other multiplexed subcarrier services. This standard lays down detailed methods of measurements, selected and recommended for assessing the essential performance and general characteristics of FM sound boradcasting transposers. It is not mandatory to measure all the defined characteristics. Fewer or additional measurements may be appropriate. Any additional measurements should preferably be in accordance with relevant standards published by the IEC or by other international bodies.