Hardware and Software Essay

475 WordsJul 24, 20122 Pages
Hardware and Software Chauntil Hill NTC/362 June 28, 2012 Asher Williams Analog and Digital Comparison Radio Frequency (RF) Transmission Characteristics . RF or Radio Frequency normally referred to through electrical current but is evident in mechanical RF systems. RF is the range of oscillation that particularly ranges between 3 KHz to 300 GHz and works together with the frequency of the radio waves and the fluctuating currents that carry the radio signals. Radio Frequency (RF) has many properties but ones that matter most are; the radiation of electromagnetic waves caused by the energy in an RF current. The electromagnetic waves is the base of what we know as Radio technology. RF can be found emitting around the conductors of electrical currents, not within the conductors themselves but around the shell of the conductor, known as the skin effect. If the human body were to come in contact with high-level RF currents the RF frequency could cause burning to the human skin. RF can cause the air around it to become conducive in nature. In order to receive RF signals not only does an antenna need to be used, a transmitter, most know it as a radio must be used to decipher the radio signal being transmitted to the unit. In order for the transmission of RF to be successful, the radio transmitter must have the ability to tune the signal to a readable format. A resonator will take the band of signal needing amplification and reduce the oscillation of other frequency bands to allow the transmitter to decipher between frequency bands. Just to be concise with an example, the MRI units or Magnetic Resonance Imaging uses radio waves to generate images of a body. Wireless communications such as, wireless routers, access points, cellular technology, and iR or infrared technology all use RF frequencies to assist in reaching the signals destination or primary use. Common

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