SET FREQUENCY

        CLIC\SET FREQUENCY subband sideband name freq
        CLIC\SET FREQUENCY ALL name freq

    Select the line name and frequency to be used  to  define  the  velocity
    scale,  for the given sub-band and sideband, by the commands MODIFY FRE-
    QUENCY and MODIFY DOPPLER.

    subbands; 'sideband' must be either USB or LSB; 'name' is  a  (max.   12
    character)  mnemonic  for the line name; 'freq' is the rest frequency in
    MHz.  If the line name is '*', then the default frequency entered  prior
    to  the  observation  will be used to compute the velocity scale for the
    corresponding subband.

    "SET FREQUENCY  ALL"  will  fill  in  the  given   frequency   for   all
    subbands.