What is the role of 'Antenna' in game of volleyball?

Question

During volleyball matches you can often see a huge rotation of players. The player who enters take a paddle and gives it to the player who comes out. What is the significance of the paddle?

Answer 1

The antennas are used to indicated where the court lines end. Just like in basketball, you can't step out with the ball. In volleyball, the ball cant travel outside those lines or your lose a point. The only way it can go out is if they hit it between the antennas and it goes out.