The Nissan Xterra Antenna's main purpose is to pick up radio waves and convert them into sound to play in the cabin, making it possible for drivers to enjoy music or news while driving. Mounted as a robust Antenna conductor array, signals are interfaced to the receiver wherein incoming electromagnetic wave signals are converted to an electric current for amplification. To meet the needs of everyday driving, the use of an omnidirectional Antenna enables reception from a full 360 degrees and not a narrow beam pattern which would mean the car would have to point north on a trail or south on the highway to keep a signal. The origins of the technology lie in dipole tests conducted by heinrich Hertz and long-range experiments, all of which lead to a compact mast Antenna seen on each Nissan model year. In lab setups, you sometimes see the addition of parabolic reflectors for more focused transmission, but the choice of a practical roof-mounted style for Xterra strikes a balance between rugged simplicity and fairly good efficiency while avoiding the complexities of high-gain arrays. For over two generations, Xterra has a simple, trusty, robust, and easy-to-service Antenna, which is well aligned with the adventurous spirit Nissan built into this SUV.
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