DX communication stands for "distance communication." It is a way of talking to people who are very far away from you, like in another city or country.
To speak to someone far away, we need to use special machines called radios. These radios send signals into the air that travel long distances. When people on the other end have a radio, they can hear our signals and we can talk to them.
Now, most people use phones or computers to talk to people far away, but radios are still used by some people, like ham radio operators. These operators have licenses that let them use special frequencies for communication, and they can talk to people all over the world.
So, DX communication is all about using radios to talk to people far away. It's like having a really long phone line that connects us to people all over the globe!