Amplitude and phase-shift keying
Okay kiddo, imagine you have a really bright flashlight that can blink on and off really quickly. That's kind of like what's going on with amplitude and phase-shift keying!
Amplitude keying is when the flashlight gets brighter or dimmer depending on whether we want to send a "1" or a "0" signal. So if we want to send "101" we might blink the flashlight really bright, then dim, then bright again.
Phase-shift keying is a little trickier. Imagine we have two flashlights, one red and one green. We can point them both at a wall and switch between shining one light on the wall or the other. BUT, we can also switch between shining both lights at the same time, or shining them at slightly different times. That's phase-shift keying!
Both of these methods are used in things like radios and Wi-Fi to send information wirelessly. It's like a secret code using light or radio waves!
Amplitude keying is when the flashlight gets brighter or dimmer depending on whether we want to send a "1" or a "0" signal. So if we want to send "101" we might blink the flashlight really bright, then dim, then bright again.
Phase-shift keying is a little trickier. Imagine we have two flashlights, one red and one green. We can point them both at a wall and switch between shining one light on the wall or the other. BUT, we can also switch between shining both lights at the same time, or shining them at slightly different times. That's phase-shift keying!
Both of these methods are used in things like radios and Wi-Fi to send information wirelessly. It's like a secret code using light or radio waves!