my customers need more data from remote location as you know lhg xl ac is not available any more may o use LHG Xl AX ?
It is possible to connect any of AX devices (LHG AG AX included) as station to N or AC AP (QRT5 included) ... including if both station and AP are not made by same vendor. The only constraint is that "station bridge" mode doesn't work in this case. See list of lost features in WiFi documentation (in this context AX station is same as AC station running wifi-qcom-ac or wifi-qcom package).
Meaning that "transparent L2 connection" between two "ethernet islands" is not possible, routed connection (station being router on customer's side) works just fine.
There have been reports that newer devices (running wifi-qcom or wifi-qcom-ac drivers) experience lower signal levels which may lead to drop in actual throughput (as compared to using older devices on same link) and there is a pretty stringent limit on link distance. So I suggest you to make a through research to see if using AX stations will actually allow links to work (and decently so).
tanx for replay i have tested in lab but connection dropped i should ask about new updates also
MikroTik no longer produces any useful devices for WISPs, such as outdoor radios for AP/CPEs schema.
In terms of stability and efficiency in crowded environments, the AX is not even comparable to the AC products and the NV2.