It's more likely to work with it's own power inserter, than just trying to power it from the receiver alone. Don't forget your receiver also needs to power the lnbs at the same time, and any other diseqc or other switches you may have in line.Well that brings up another question.
I looked at the link for the WNC model above. It says:
"The AC/DC Module is designed for connection to the 4x8 Multi-Switch directly, or remotely via a commonly
available RG-6 cable, up to I 00 feet."
Would that powered switch work over 170 ft away at the dish?
No rush on an answer. I need to upgrade coax and connectors before I do anything else.