Off Air TV Broadcast Signal Distortion

Off-air stations are television broadcasters that transmit signals that can be received from terrestrially located broadcast facilities on a tele' receiver. Off-air television signals are subject to distortion by the reflections from the turbine blades and by the attenuation of the signal passing through the wind turbines. The reflections may cause multipath distortion and ghosting. Blade motion may cause the contrast and brightness of the signal to vary. These effects apply to Analog modulated television signals and do not affect digital signals in the same way.

A TV Broadcast Off-Air Reception Analysis can be done prior to development of a project to characterize the baseline signal strength and reception conditions within the project area. The study is used to identify the potential impacts from project development. The extent of the impacts would vary based on factors identified by the study, such as the pre-existing signal strength and the use of cable and satellite television in the area. If this baseline study is performed, problems or changes in signal quality can be compared with the baseline measurements to evaluate whether the wind project may be causing or contributing to reception problems.

Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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