ALL%DROP

###
ALL%DROP

                    INTEGER ALL%DROP[2]          This is an integer array giving
        the number of edge channels ignored when reading a UV table. Edge  chan-
        nels may have different weights than the other ones, especially for ALMA
        data because of the off-line Doppler correction.

        Such low weights edge channels  are  automatically  dropped  for  Single
        fields,  so  you  can  use  ALL%DROP = 0, but not yet for Mosaics, where
        ALL%DROP = 5 is more appropriate.