[CLEAN\]UV_FILTER [/RESET] [/ZERO] /RANGE Min Max [TYPE] Indicate that channels between the First and Last defined by Min Max and Type contain line emission and should be filtered out. Type can be CHANNEL, VELOCITY or FREQUENCY. For type CHANNEL, Min and Max indicate offsets from Channel 1 and Chan- nel Nchan (the number of channels in the data set). Thus Max can be neg- ative: it then indicates Last = Nchan-Max. Also Min=0 and Max=0 implies loading all the channels.