Radio is a very important device in our daily life. Although most people don't know what it takes to keep radios working. In a radio, many elements are necessary to maintain a radio operating frequency, resonance and radio waves are all elements necessary to power a radio. Frequency refers to the number of occurrences of a repetitive event per unit of time. The frequency sends sound signals over a radio wave. FM also stands for frequency modulation. FM and AM are the main responsible for sending music and lyrics. The frequency is called time frequency. FM is better than AM. For example, FM is free of static electricity from the interference that affects AM broadcasts, and f-modulated music sounds better. One of the main uses of frequency modulation is in broadcasting. In broadcasting, sound signals come from two microphones in a stereo recording and are then sent over the radio wave. FM stations send programs such as music and broadcasts. The website states “In frequency modulation, the frequencies of the radio wave are increased or decreased to match the vibration of the sounds to be sent. » (Wikipedia Contributors, p. 1) Hertz, originally named after the German physicist Heinrich Hertz, is known as an important part of a radio refers to SI units of frequency. For example, one hertz means that an event occurs once per second. Resonance means the way in which a system moves at greater amplitudes at some frequencies than at others. Resonance was originally discovered by Galileo Galilei. The resonant response, especially for frequencies far from the resonant frequency, depends on the detail of the physical system and is generally not the same as the resonant frequency. Television is an example of resonance which occurs when the middle of paper......incoming signal. We thought the park was very good because it was outside. Results: In Krystal's house the signal was good because we could hear a man talking, in Rosa's house there was no signal, just static noise. At Kiest Park the radio worked very well and the channels were very good. Conclusion, the results regarding Krystal's house were correct because on the radio, a voice was heard as expected. The results for Rosa's house were wrong because all that was heard was static and no signal. Our results for Kiest Park were OK as the radio receives a very good signal and Spanish channels are heard. Frequency, resonance, and radio waves are all necessary elements to power a radio. In a radio, many elements are necessary for a radio to function properly. Although it is known what it takes to keep the radio working. Radio is a very important device in our daily life..