hi everyone, i m starting my wireless studies but there are few concepts that i m not getting on, first is BANDS and CHANNELS, i m not at all getting as to what they are but like many of u know how much they are of use in wireless, so can someone tell me a site or another resource that explains it to me in the most easiest way like explaining to a dummy coz i really am a dummy in wireless. :)

thanks waiting for +ve feedback