dimanche 27 avril 2014

Commercial Antennas Have Improved Their Appearance

By Essie Osborn





The aluminum antenna forest that once sprouted from nearly every suburban rooftop has nearly disappeared, a casualty of the digital revolution. While this is a welcome development, modern communications and media still often require over-the-air transmission and reception. Strong signals and reliable coverage are always important, but so is the impact these units can have on everyday living.



Any basic antenna is a system of wires, poles, dishes or other metallic devices that can send or receive electromagnetic signals. Those loosely defined as commercial antennas are being used for the purpose of making money, and may include radio, television, and cell phone towers. Devices that are used mainly in residences, such as amateur radio transmitters or home satellite dishes, are not.



Before a business can place a new installation, however, a number of local issues must be seriously considered. Although consumers purchasing new electronic communications expect that they will have strong, reliable connections, most simply do not want to actually see the necessary installations and towers that make the entire experience possible. Because of this understandable attitude, cities have created new regulations regarding antenna visibility, size, and location.



A high-tech antenna array sporting gleaming metal spikes might appeal to some, but generally not to those people living in its shadow. This understandable attitude has driven technicians to new levels of creativity when designing and placing new installations, with the goal of making them less obtrusive. Many of these solutions are based on the concept that new equipment should be almost invisible to casual observers.



One of the most successful methods of reaching that goal is termed co-location. This process places the necessary new hardware on the face of an already existing base, doing away with the need for new construction. Because other companies are already using that tower, the design must fit into their operations, must not impact them negatively, and cannot be aesthetically inappropriate.



If co-location is not possible, then a multitude of local regulations must be considered before building another tower. While cities vary, most have enacted fairly stringent rules regarding new sites. If the area is residential, for example, many locales prohibit this sort of construction in front or side yards. Devices must never interfere with traffic, or even alter existing parking spaces.



In addition, the color scheme has to blend properly with existing designs. A new antenna must not block the view from adjacent homes. Some regions stipulate that all connective wiring be run beneath ground, and covered by vegetation or landscaping when above ground. Ordinances regarding height must be followed. Although these requirements may seem restrictive, the positive outcome is a new generation of towers that most people happily never notice.



Where ugly metal once sprouted, people now see greenery. In New York state, towers are disguised as deciduous trees, while in Los Angeles they may resemble palms. Some newer antennas are specially created to match and blend into other unique natural environments, and many are doing that job very well. The result, although initially somewhat costlier, is proving very popular with service providers and consumers alike.









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