TVFool (and others) use the Longley Rice Irregular Terrain Model for calculating signal propagation.
See http://www.its.bldrdoc.gov/resources...e/itm/itm.aspx
This software vendor provides a substantial number of references in the description of their implementation: http://www.softwright.com/faq/engine...gley_rice.html
Last edited by ADTech; 23-Jun-2014 at 10:52 AM.
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