You may have noticed that television antennas on housetops have metal rods mounted horizontally (Figure 24.122), at least in the United States (we're not talking about satellite dishes). What does...

You may have noticed that television antennas on housetops have metal rods mounted horizontally (Figure 24.122), at least

in the United States (we're not talking about satellite dishes). What does this imply about the construction of the

transmitting antennas used by television stations? Why?