VARIABLES LINE

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    Spectral correlator related information (Scan based).

      N_LINE_BANDS             Number of line subbands
      FOURIER                  (Logical) FFT done, data in frequency space
      TOTAL_CHANNELS           Total number of line channels
      N_CHANNELS     [NSUBB]   Number of channels in subband
      FIRST_CHANNEL  [NSUBB]   First channel in subband
      LFCEN          [NSUBB]   LO3 frequency (channel 1)
      LFRES          [NSUBB]   Frequency resolution (signed)
      REF_CHANNEL  [2,NSUBB]   Reference channel for spectrum
      F_RESOLUTION [2,NSUBB]   Frequency resolution
      F_OFFSET     [2,NSUBB]   Rest frequency in reference channel
      V_RESOLUTION [2,NSUBB]   Velocity resolution
      V_OFFSET     [2,NSUBB]   Velocity in reference channel
      R_LILEVU  [NSUBB,NANT]   Sampling levels (USB)
      R_LILEVL  [NSUBB,NANT]   Sampling levels (LSB)
      REF_NUM        [NSUBB]   Spectral window reference channel
      UNIT_NUMBER    [NSUBB]   Unit "physical" number
      R_FLO2         [NSUBB]   LO2 frequency (MHz)
      R_BAND2        [NSUBB]   LO2 conversion sign
      R_FLO2BIS      [NSUBB]   LO2bis frequency (MHz)
      R_BAND2BIS     [NSUBB]   LO2bis conversion sign
      R_FLO3         [NSUBB]   LO3 frequency (MHz)
      R_FLO4         [NSUBB]   LO4 frequency (MHz)
      BAND4          [NSUBB]   Sign of band 4 conversion
      R_LPOLMODE     [NSUBB]   Polarisation mode
      R_LPOLENTRY[NANT,NSUBB]  Polarisation connected to spw
      R_BB           [NSUBB]   Spectral window baseband
      R_IF           [NSUBB]   Spectral window IF
      R_SB           [NSUBB]   Spectral window sideband
      R_STARTING_CHUNK [NSUBB] Spectral widow starting chunk
      R_NB_CHUNK       [NSUBB] Spectral window number of chunk
      PHSELECT  [NANT,NSUBB]   Real-time atm. correction (1: TP, 2:WVR)