is 21db maximum db what can i get with openwrt? can that number be larger and how?
That is what the driver informs, and probably is the actual hw capability
you say cant as i understund? ok and 21 is better than 20 also am hope still that they will make like in version4 wa901 what can go up to 28db thats great shoot thanks openwrt
That depends, sometimes you need to reduce the power in small rooms with no signals noise in order to not saturate of signal bouncing on walls... basically it's physics if you have too much signal because you are not too far from the AP then it is better to adjust a little bit the signal strength.