Well you only using 2 chains and the third is burnt unless you turned off the radio in that chain. It has nothing with 3x3 to do that it's quicker, more that's is a better chipset.Pleas look at uptime, and think again...Most likely you will burn chain2
Using a chain without an antenna on it would damage the card. There is a guide to check this too.i tried in both chain,but the signal is very low and a ccq too
+1what about premoderation of the first few posts of each user?..