Examples

To solve for G on, say, fields 1 & 2, on a 90s timescale, and do so relative to gaincurve and bandpass corrections:

gaincal('data.ms',
        caltable='cal.G90s',          # Write solutions to disk file 'cal.G'
        field='0,1',                # Restrict field selection
        solint='90s',                 # Solve for phase and amp on a 90s timescale
        gaintable=['cal.B','cal.gc'], # prior bandpass and gaincurve tables
        refant='3')               # reference antenna

To solve for more rapid tropopheric gains (3s timescale) using the above G solution, use gaintype='T':

gaincal(vis='data.ms',
        caltable='cal.T',           # Output table name
        gaintype='T',               # Solve for T (polarization-independent)
        field='0,1',            # Restrict data selection to calibrators
        solint='3s',                # Obtain solutions on a 3s timescale
        gaintable=['cal.B','cal.gc','cal.G90s'], # all prior cal
        refant='3')           # reference antenna

To solve for GSPLINE phase and amplitudes, with splines of duration 600 seconds:

gaincal('data.ms',
        caltable='cal.spline.ap',
        gaintype='GSPLINE'       #   Solve for GSPLINE
        calmode='ap'             #   Solve for amp & phase
        field='0,1',             #   Restrict data selection to calibrators
        splinetime=600.)         #   Set spline timescale to 10min