In my PC network connection, 2.4 Ghz shows 300Mbps and 5Ghz shows anout 800 Mbps link speed, I have disable radio scanning:
uci set wireless.radio0.noscan=1
But in the phone(Samsung A51) as well other, it shows 72Mbps, even at very close range. is it that phone antinna is not 2X2? or if there's any other thing?
PC card: intel wifi 6 AX200
Router: Mi 4A Gigabit
Turning this on will violate regulatory requirements!
~from Wiki
I would advise against such configuration.
Your post isn't clear. You seem to imply that you desire higher channel bandwidth or link speed, by configuring obscure settings to accomplish this.
It's not clear why you're asking these questions.
FYI, just because you configure this on the AP, doesn't mean clients won't perform their own scan before attempting to transmit [according to regulations].