A:Answer The diplexer included in the self-install kit is an Aspen 500249, which may or may not be what their installers use, but I'm guessing that for economy-of-scale, the professional installers are supplied with the very same kit of parts. For more information on installation, see here:
https://orbytv.com/wp-content/uploads/2019/06/Orby-TV-Self-Installation-Guide-20190605.pdf