adding outside

200ft would be to far. 

Users have posted that they have had there RBSs setup at about 60-80 feet at most and thats in line of sight mostly with out any build materials in the way. 

Can you get a buried LAN cable put down to the remote location? If you can, then you could install a RBS there if there is a building there.

NG has a RBSY model outdoor satellite however it won't reach 200 feet. It's meant for mostly near by the main home building at around 30 feet or a bit more from the RBR. 

The WiFi signal will not travel 200 feet between the router and satellite. To span 200 feet to another building, I suggest adding a Wifi Outdoor Bridge (check Amazon or other retailers).  You will need a clear line-of-sight for the two units of a wireless bridge to work. Else, run a buried CAT6 cable the span between your buildings.

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spatengal wrote:

I have a house with a cabin down the hill about 200 ft where would I install the unit? It is not cheap so

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This situation is not compatible with any of the typical "mesh WiFi" systems, including Netgear's Orbi.  The RBS50Y "outdoor" Orbi is intended to be placed outside the main building to provide coverage for outdoor areas and tolerate outdoor environment.  It does require a power outlet.

When it is too difficult or costly to install an ethernet cable, most people find that a point to point wireless bridge is the appropriate solution.  It acts as a sort of "invisible ethernet cable", where devices on each end cannot tell the difference.  To them, an ethernet cable plugs in, so it must be ethernet.  One such product that has been mentioned several times is the Ubiquity Nano Station. (Search Amazon for "wireless bridge" and it will return more brands than you have ever heard of at all possible price points.  Just personally, I would stick with a "major brand".  I do not believe that Netgear has a product for this specific need.)

As an introduction, I suggest looking at the comments (reviews) on this Ubiquity product:

https://www.amazon.com/NanoStation-NS-5ACL-US-802-11ac-Wireless-POE-24-7W-G/dp/B07K351LGD/ref=sr_1_6?dchild=1&keywords=ubiquity+nanostation&qid=1586195507&s=electronics&sr=1-6 This may not be the "product for you", but the comments may give you an idea what people are doing.

The concept is to install a link from one location to another.  Connect one end to the Orbi and connect any brand of WiFi access point to the other end. (Even an Orbi satellite.)  What I found fascinating is that several of the reviewers talked about installing the Nanostation inside and simply "beaming through" the walls on both ends.  If something can connect over 15km, a few walls are not going to make a difference when the link is less than 500ft.