Trying to understand everything. Looking at the links provided by TechWriter it appears all my local channels use both the western 129 satellite and the eastern 61.5 for HD, and the 110 and 61.5 for SD. So then can I assume I "might" be able to receive those channels using only the western arc, but my chances are better if I can receive both? Even I could only receive SD that would be okay with me, after all that's all I got with Direct tv.
Also why is it different if I'm away from home using a portable dish? My fixed dish at home doesn't move? I don't get that part.
And if there are different satellites for different channels does that mean I have to re aim my MP1 at a different satellite if I change stations? With direct tv i just find the signal and all my channels are there.