Is it safe to connect my dish feedline to LNB IN port on S9, then connect LNB OUT port on S9 to the microHD LNB IN? I would then plan to disable motor and LNB voltage on S9, only using motor and LNB voltage from microHD. The purpose of this is so I can compare signal reception between S9 and microHD. If this won't work, how can I have both receivers connected to my same dish for comparing?