The name of the electromagnetic wave transmitted at frequencies from 1GHz to 40GHz is microwave. The microwave transmits the signal to the one-way, six-sided center. For this, the sender and receiver antennas have to be arranged facing each other. The advantage is that a pair of subscriber and transmitter antennas can exchange information without colliding with the antenna in the other corner. It is called a microwave because the wavelength is very short at this frequency. Its frequency is much higher than radio frequency, so it has more performance and speed. The main disadvantage of microwave transmission is that there is no barrier between the transmitter and the receiver. Because such a signal cannot penetrate the building or the corner. For microwave sending, the sender and the recipient have to be in line of sight. The greater the distance between the sender and the receiver, the higher the antenna. Another disadvantage of microwave movement is that at this frequency the waves become weaker in the rain. This problem is not seen in radio frequencies.