However, this will occur in only a very few cases where the FM and TV transmitter sites are close together. Population data is not computed. However, the Census Bureau's block centroid data can be used to find population information. Map generation may sometimes be quite slow. This is because the map query is directed first to another FCC program to set up the structure, and then the map query is redirected to the Census Bureau's Tiger Map servers for generation.
Additional information is provided to explain the plotting program in more detail.
Despite these limitations, we believe that you will find this program useful as a starting point in computing the predicted potential interference to Channel 6 reception. Adapted and improved forInternet use by Dale Bickel in February 2000.