Haha. Not much, except clobbering each other. This is not too probable with two routers, but with a dozen, all trying to work at 2412 MHz ("channel 1"), the SNR

Haha. Not much, except clobbering each other. This is not too probable with two routers, but with a dozen, all trying to work at 2412 MHz ("channel 1"), the SNR tends towards 0.