APPLY AMPLI

        [CALIBRATE\]APPLY AMPLI [Gain] [/FLAG [Threshold]]

      Apply an Amplitude gain calibration result. In doing so, the  weights  are
    never  up-scaled,  even when the Amplitude correction factor is smaller than
    1. They are down-scaled for visibilities with correction factor larger  than
    1.  The  rationale  behind this behaviour is to avoid giving more weights to
    data which has been modified in a self-calibration process.