RECOMMENDATION ITU-R BS.641 - Determination of radio-frequency protection ratios for frequency-modulated sound broadcasting
ANNEX 1 - Objective two-signal method of measurement for transmission standards using a maximum frequency deviation ...
1 Measuring method
2 Psophometer
3 Noise signal for modulating the interfering signal generator
4 Measuring arrangement
5 Frequency deviation of the signal generators
6 Radio-frequency wanted-to-interfering signal ratio