This Recommendation provides a method for the prediction of available frequencies, of signal levels and of the predicted reliability for both analogue and digital modulated systems at HF, taking into account not only the signal-to-noise ratio but also the expected time and frequency spreads of the channel.
ITU-R P.533-12-2013 history
2015ITU-R P.533-2015 Method for the prediction of the performance of HF circuits
2013ITU-R P.533-12-2013 Method for the prediction of the performance of HF circuits
ITU-R P.533-12-2013 Method for the prediction of the performance of HF circuits was changed to ITU-R P.533-2015 Method for the prediction of the performance of HF circuits.