A t-antenna is like a tall stick with a wire sticking out, and it helps to catch radio signals in the air. The wire sticking out is connected to something called a transmitter, which sends out the signals, or a receiver, which catches the signals.
The t-antenna works like this: the wire sticking out of the stick is called the "top" of the antenna. The big stick part of the antenna is like the "base." The wires inside the stick part and under the ground are called the "counterpoises."
When radio signals are traveling through the air, they create electrical signals in the t-antenna's "top" wire. This creates a flow of electricity that travels down the wire, through the stick part of the antenna, and into the "counterpoises" under the ground. This flow of electricity goes back and forth between the "top" wire and the "counterpoises," and this creates a strong signal that can be picked up by the receiver.
So, basically, the t-antenna works like a big stick with a wire sticking out of it and wires under the ground that work together to catch radio signals and send them to a receiver.