The Spectral Visual Editor can be invoked by selecting a Target withan attached Instrument Setup or by selecting a specific InstrumentSetup - click on the Spectral tab in the Editor pane in each case. Onthe left the Visual Editor displays two graphs: the upper one showsthe Receiver and LO visualisation and the lower one the basebandvisualisation. On the right is the corresponding form that would beshown if the Forms tab had been chosen instead of the Spectralone. Parameters entered via the Visual Spectral Editor (eithergraphically or using the form fields) become visible in the Formseditor and vice versa.
The Visual Spectral Editor shows if the SpectralSpec is used for oneor more Targets. Be warned that when an Instrument Setup is notattached to a Target, there is no redshift/velocity that can be usedto calculate the shift between the observed frequency and thefrequency in the source frame.