Goto Section: 1.958 | 1.981 | Table of Contents
FCC 1.959
Revised as of October 1, 2011
Goto Year:2010 |
2012
§ 1.959 Computation of average terrain elevation.
Except as otherwise specified in § 90.309(a)(4) of this chapter,
average terrain elevation must be calculated by computer using
elevations from a 30 second point or better topographic data file. The
file must be identified. If a 30 second point data file is used, the
elevation data must be processed for intermediate points using
interpolation techniques; otherwise, the nearest point may be used. In
cases of dispute, average terrain elevation determinations can also be
done manually, if the results differ significantly from the computer
derived averages.
(a) Radial average terrain elevation is calculated as the average of
the elevation along a straight line path from 3 to 16 kilometers (2 and
10 miles) extending radially from the antenna site. If a portion of the
radial path extends over foreign territory or water, such portion must
not be included in the computation of average elevation unless the
radial path again passes over United States land between 16 and 134
kilometers (10 and 83 miles) away from the station. At least 50 evenly
spaced data points for each radial should be used in the computation.
(b) Average terrain elevation is the average of the eight radial
average terrain elevations (for the eight cardinal radials).
(c) For locations in Dade and Broward Counties, Florida, the method
prescribed above may be used or average terrain elevation may be
assumed to be 3 meters (10 feet).
[ 70 FR 19306 , Apr. 13, 2005]
Reports To Be Filed With the Commission
Goto Section: 1.958 | 1.981
Goto Year: 2010 |
2012
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