I have a question about using the OTA adapter and my Wally with a Tailgater mounted on the roof of my rig. Since I decided to permanently mount the tailgater to the roof I knew I would have times where the line of sight would be obstructed. I think that in that case adding the Dish OTA adapter to the Wally I could have the guide but only OTA channels. Will this work or does the Wally need to see satellites in order to provide main functions first in order to provide ancillary functions such as using th OTA Adapter?