Once the optical pointing parameters have been determined and entered in the Antenna-Station file, only one radio pointing on a strong source is needed to get the radio COV and the radio IAZ. The radio COH should be set to its (antenna-only dependent) value.
If the optical COV was already well known, you should find the radio COV = 0. Radio IAZ is determined as follows: measure the azimuth pointing error, divide it by cos(Elevation), and subtract the result from IAZ (Oui, soustraire). You should then be ready for a radio observing !