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David Hayward — Mapping | Web Directions

Huffduffed by jaywest on May 4th, 2010

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David Hayward — Mapping | Web Directions

—Huffduffed by adrianl on May 11th, 2010

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Huff-Duff: – noun; The common pronounciation of the acronym HF/DF meaning high frequency direction finder.; A triangulation method that uses two or more radio receivers to find the bearings of a radio transmitter.

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