0
Let's say we have a wifi router which supports IEEE 802.11n, 802.11ac with 2x2 or 3x3 MIMO, and is also backward compatible with 802.11a, 802.11b, 802.11g.
Given that 802.11a/b/g are non-MIMO standards, does that mean that it will only transmit on 1 antenna if operating in those modes?
What is the best that it can do for those older IEEE wireless standards?