SELF_CHANNEL

            SELF_CHANNEL[2]

    First and last channel to define the range to compute the UV table  for  the
    self-calibration  solution. For example, if you have used UV\PLUGC to plug a
    continuum data into the last channel, this could be set  to  the  number  of
    channels. 0 0 means all channels are averaged to compute the "continuum" im-
    age.