Thank you very much Eric, for your quick and efficient response. It looks better than I thought. I believed that the channels would appear widened when received above and below the LO frequency with the available IF being less than 1MHz. It also supposed that there would be a "hump" in the central part when adding the powers of both recepcioners (above and below LO).
- EA1AWY Javier Muriedas (Gijón, Asturias, Espa?a)