No AirmaxAC equipment is not compatible with normal 811.3n systems, if so you need a litebeam without AC or a nanostation M, alternatively SXT from Mikrotik is also possible, although it does not come close to the data of a lightbeam.

The transmission protocol is AirMax TDMA. The transmitters and subscribers are AirMax TDMA in this product. Works very well.

You can use another AP (e.g. an AC Lite) on the subscriber, it will pull the IP from the base network and connect all devices in the same network, or there is its own subnet (can be set on the AP).

You can plan the network very well at https://link.ui.com, then you will also see the settings (elevation and azimuth) for your connection. The functionality is well described here: https://www.ui.com/uisp

Caution:
-Note that AirMax Gen2 and RocketM5 will not work depending on the initial situation (AP and station, the AP must be new), a generation change has been made here.
-With these products you can use UNMS for management, the Cloudkey does not support this. This means that the switches and routers and APs must then be Edgerouters and Nanos.

Antennas 5Ghz and 2.4Ghz (directional antennas for home routers) can be found, for example, with the keyword Ultradish 5GHz....