If you are planning on using a
VBox for control of the
actuator I am assuming you have no intentions of using anything other than a DVB MPEG2 receiver. If that is the case a BSC type lnbf would be the best choice. As to a corotor and free. the corotor has nothing to do with receiving free or encrypted content that is in the receiver. Lnb or lnbf they both only "read" what is coming in. The job of making either music or picture out of what they "read" is the receiver.