Nice video, thanks. Note: at 1:29 you say that 2.4GHz penetrates further due to reduced size of the wave length. It's actually the opposite: 2.4 GHz penetrates further due to the *increased* size of the wave length (lower frequency <=> longer wave length). You can compare this to sound: when neighbors are having a party, you can't hear the higher pitch sounds (higher frequency <=> shorter wave length), but you can hear the low frequency sounds (low frequency <=> longer wave length). Perhaps that's what you meant to say? Hope this helps.
