CLIC\VARIABLES SPW ON|OFF Spectral window parameters. SPW%NSPW SPW%NAME [NSPW] Spectral window name SPW%TOPO [NSPW] Spectral window topocentric ref frequency (MHz) SPW%FREQ [NSPW] Spectral window rest frequency (MHz) SPW%BW [NSPW] Spectral window bandwidth (MHz) SPW%POL [NSPW] Spectral window polarisation (1:H, 2:V) SPW%SB [NSPW] Spectral window sideband