Left: spectra of V789 Mon (2RE J0725) in the Hα line region in McDonald run. Right: spectra of GZ Leo (2RE J1101) in the Hα line region in McDonald run. The observed spectrum (solid-line) and the synthesized spectrum (dashed-line) are plotted in the left panel and the subtracted spectrum (dotted line) in the right panel. The position of the Hα line for the primary (P) and secondary (S) components are marked too and here we again have the two-Gaussian fit superposed.