UV_PREVIEW Limitations

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UV_PREVIEW Limitations

            UV_PREVIEW  cannot  identify lines if there are two few channels. It
        will only display the spectra in this case. A minimum of 32 channels  is
        required,  but  confused spectra may also prevent a proper line recogni-
        tion.

        The line detection is based on the current specified velocity.  If  this
        is  incorrect,  lines may appear shifted and considered as not detected.
        PREVIEW%TOLERANCE indicates the matching precision in frequency (default
        is 2 MHz).

        If  variable  \sicvar{REDSHIFT} exists, the frequency scale is corrected
        for that source Redshift, so that line identification remains possible.