Does not the socket out to dish have to have voltage on it for the LNB?on my Humix kit a five volt out to the antenna is selectable in the menu.
I have seen satellite boxes with phono out to the dish and I have seen others with F plug,once blew a box up because of this confused state of affairs
Most modern kit does not have RF in and out,just RF in assuming most people scart everything up nowadays,probably do away with scart shortly assuming we are all using HDMI
