mardi 29 avril 2014

Commercial Antennas Have Become Less Intrusive

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.

At its most basic level, an antenna consists of poles, wires, dishes and other metal devices designed to both receive or send electromagnetic signals. Commercial antennas are integral to generating money, and are used by television, radio, cell phone and other communications enterprises. Amateur home radio transmitters, satellite dishes, and other related devices are not considered commercial.

Business operators are increasingly faced with a variety of issues that must be addressed before any new equipment can be placed. Consumers buying electronic communications devices naturally want them to work dependably and with reliable reception, but do not want to actually see the necessary towers or broadcast installations that make good electronic service possible. Most cities have been forced to create new regulations on location, size and visibility.

An installation bristling with metallic spikes might appeal to a technocrat, but not to most people living beside it. Operators of most systems have been forced by this understandable public attitude to be creative with new antenna placement and design, and try to make them as unobtrusive as possible. Creative design solutions begin with the idea that new facilities should be nearly invisible.

The most basic way of accomplishing that is called co-location, a common solution to placement issues. Co-location puts new equipment on an existing tower, eliminating the need for additional construction. This process often involves working together with other companies using that tower, must not interfere with current operations, and must conform to existing standards of aesthetic appearance.

For many new services, however, co-location is not feasible. In those cases, there are often stringent regulations for new construction. Although cities vary, most have rules that attempt to accommodate the needs of both service provider and customer. In many areas, new towers may not be constructed in a side or front yard, and cannot disrupt current traffic flow or eliminate current parking capacity.

Color schemes must be compatible with the existing site, and cannot alter the view from nearby properties. Many locales today require that all the connective wiring must be placed underground, and the visible portions covered by landscaping or vegetation. Height ordinances must also be taken into consideration. While these general rules may seem restrictive, the positive result has been a proliferation of antennas that most people never even notice.

Today, some are disguised as trees. In Los Angeles, they may look like palms. In New York state, some have realistic artificial deciduous branches that fool the eye. Others are specifically created to match a particular natural background, and many blend in perfectly. Although it can be more expensive, designing antennas that disappear into the background has proven very popular both with consumers and the companies serving them.




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