I have read through a bunch of threads and still can't figure out how to get a SWM. I have my whole house wired and will be adding another receiver and prefer not to run 2 wires. My questions are as follows: 1. Considering I have already had the installer out for one HR-20, if I order another one will they just send it? 2. How do I get a SWM? 3. Can the SWM go outside on the dish? 4. Why isn't there a sticky in any of the forums on SWM what is it and how do I get it?