RECOMMENDATION ITU-R BS.640-3 - Single sideband (SSB) system for HF broadcasting
1 SSB emission specifications
    1.1 Audio-frequency bandwidth
    1.2 Necessary bandwidth
    1.3 Characteristics of modulation processing
    1.4 Channel spacing
    1.5 Nominal carrier frequencies
    1.6 Sideband to be emitted
    1.7 Suppression of the unwanted sideband
    1.8 Degree of carrier reduction
    1.9 Frequency tolerance
2 SSB reception specifications
    2.1 Overall selectivity of the receiver
    2.2 Detection system of SSB receivers
    2.3 Noise limited sensitivity of SSB receivers