A:Answer You'll need one install kit , but you'll need a splitter. Not just any splitter. In the Self install guide, it shows the splitters
https://orbytv.com/wp-content/uploads/2019/06/Orby-TV-Self-Installation-Guide-20190605.pdf
Approved Splitters:
Eagle Aspen - All ports power passing 5-2600MHz
Perfect Vision - All ports power passing 5-2300MHz
WDC - Worldtec Distributing Corp – All ports power passing 5-2300MHz
If you are installing two receivers , only use a two line splitter. If you get a three, I have read there is significant signal loss.
If you need to add another receiver , then purchase the three way splitter.
Hope this helps