Goto Section: 80.755 | 80.759 | Table of Contents
FCC 80.757
Revised as of October 1, 2008
Goto Year:2007 |
2009
Sec. 80.757 Topographical data.
(a) In the preparation of profile graphs and in determining the location and
height above sea level of the antenna site, the elevations or contour
intervals must be taken from U.S. Geological Survey topographic quadrangle
maps, U.S. Army Corps of Engineers maps or Tennessee Valley Authority maps,
whichever is the latest, for all areas for which maps are available. If such
maps are not published for the area in question, the next best topographic
information must be used. The maps used must include the principal area to
be served. U.S. Geological Survey topographic quadrangle maps may be
obtained from the Eastern Distribution Branch, U.S. Geological Survey, 1200
South Eads Street, Arlington, VA 22202, for maps of areas east of the
Mississippi River, including Minnesota, Puerto Rico, and the Virgin Islands,
and from the Western Distribution Branch, U.S. Geological Survey, Federal
Center, Denver CO 80225, for maps of areas west of the Mississippi River,
including Alaska, Hawaii, Louisiana, Guam and American Samoa. Sectional
aeronautical charts are available from the Distribution Division, National
Ocean Service, Riverdale, MD 20840.
(b) In lieu of maps, the average terrain elevation may be computer
generated, using elevations from a 30 second point or better topographic
data file such as those available for the U.S. Geological Survey's National
Geographic Information Center or the National Oceanic and Atmospheric
Administration's National Geophysical Data Center. In case of dispute maps
will be used to determine the correct value.
Goto Section: 80.755 | 80.759
Goto Year: 2007 |
2009
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