Eli5:Why is it that cell phones , with their tiny antenaes are able to download files at LTE speeds inside concrete buildings from cell towers kilometers away yet getting wifi to work behind a corner is an exercise in frustration?
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Imagine a wireless signal is a string. Your cell signal and WiFi are the same length. Data is beads being sent along the string.
A cell signal is a lower frequency, so the string is put on the ground fairly straight with less “waves”, which means the beads can pass by your device one at a time, but they car go further along the string.
A WiFi signal is high frequency, so the string has a lot of “waves”, which means a lot of beads are able to pass by your device at the same time, but they can’t go as far because of all the corners they have to go around.
You also have to remember, LTE speeds are fast, but WiFi is *much* faster, with the slow speeds because of the internet connection, not the wifi
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