@abobla@lemm.ee to PrivacyEnglish • 8 months ago"Wiffract" Wi-Fi method can read letters through wallswww.techspot.comexternal-linkmessage-square33fedilinkarrow-up1239arrow-down16
arrow-up1233arrow-down1external-link"Wiffract" Wi-Fi method can read letters through wallswww.techspot.com@abobla@lemm.ee to PrivacyEnglish • 8 months agomessage-square33fedilink
minus-square@crapwittyname@lemm.eelinkfedilink6•edit-28 months agoI think your removed packet calculation has got a power of ten wrong somewhere. Wi-fi is GHz so that would be on the order of centimetres I think.
minus-squareTurunlinkfedilink4•8 months agoYes. Wifi is 2.4 GHz, speed of light is 0.3 Gm/s. Therefore one wavelength is 0.3/2.4 m/s/Hz = 12.5 cm
minus-square@Hamartiogonic@sopuli.xyzlinkfedilink1•8 months agoYeah, you’re right. Writing it smaller than 12.5 cm should do it, which is entirely reasonable.
I think your removed packet calculation has got a power of ten wrong somewhere. Wi-fi is GHz so that would be on the order of centimetres I think.
Yes. Wifi is 2.4 GHz, speed of light is 0.3 Gm/s. Therefore one wavelength is 0.3/2.4 m/s/Hz = 12.5 cm
Or 0.001 football pitches
Yeah, you’re right. Writing it smaller than 12.5 cm should do it, which is entirely reasonable.