The bandpass is calibrated using the task BPASS. The following inputs will solve for both the amplitude and the phase variations across the band. Setting SOLINT=-1 will use all the data for the source specified (a bright one) to construct a single bandpass solution for each antenna. BPASSPRM(10)=1 will normalise the data in such a way as to make the solution less sensitive to the amplitude calibration.
The bandpass solutions can be viewed using POSSM or BPLOT (Fig. 7) and their effect on the data determined using POSSM.