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Fixed-link wind-turbine exclusion zone method Fixed-link wind-turbine exclusion zone method HOT

D F Bacon

Wind Engineering, Vol. 16, No 6 1992. 8.

A proposed method for establishing an exclusion zone around a terrestrial fixed radio link outside of which a wind turbine will cause negligible degradation of the radio link performance.

Obstruction or reflection of radio waves by a wind turbine can degrade the performance of a fixed radio link due to the effect of large blades rotating at approximately 32 rpm. Typically there are 2 or 3 blades. Thus any significant interfering signal, such as a delayed multipath component, will fluctuate in signal level around 1.0 to 1.5 Hz. This is particularly problematic to a digital link where the performance is assessed on a second-by-second basis.

Thus a special criterion for the proximity of wind turbines to radio links is considered necessary. This document proposed a practical method for establishing an exclusion zone around the path of a fixed radio link within which it would be inadvisable to install a wind turbine.

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