ELI5: Explain Like I'm 5

Counterpoise

Okay kiddo, do you know what balance means? It's when two things have the same weight or power so they don't tip over or fall down.
Now, let's talk about radio waves. When we want to send these waves through the air, we need a special piece of metal called an antenna. But sometimes, the antenna is not perfect and it can make some of the waves bounce back instead of going forward. This can cause the radio signal to sound scratchy or drop out completely, which is not good.
That's where the counterpoise comes in. It's like having a helper for the antenna that keeps it balanced and prevents those bouncing waves from happening. The counterpoise is also made of metal and is placed underneath the antenna. It helps the antenna send out strong, clear radio waves so you can hear your favorite music or talk to your friends on the radio!