Calculations Made to Determine RF Levels if the Lake Cedar Group SuperTower Were Built

Determining the RF power levels that would result if the Lake Cedar Group tower were to be built is not a “guessing game.” RF levels (power densities) that would result from any RF transmitter can be calculated using formulas given by the FCC. These RF levels are a function of transmitted power, antenna pattern, distance and direction from the antenna to the point for which the calculation is being made.


A detailed calculation must be made to determine the contribution from each transmitter, taking into account each station’s power, antenna height, antenna position and antenna pattern. The technical parameters of each transmitter were provided by Lake Cedar Group to Jefferson County and to CARE engineers.

To the right is a sample of an
EXCEL spreadsheet showing
calculated RF power densities for
three points South of the
proposed Lake Cedar Group tower.

Calculations were also made for
many other points, and these
calculations are typical of
radiation levels that would be
experienced at many exposed
residences south of the proposed
tower.

For the technically inclined, click here for the equation used to make the RF power density calculations.
LCG propsal for Calculating RF Power Densities during Transition Period
 
Similar calculations were made for the existing Lake Cedar Group stations so that a comparison of current and proposed Lake Cedar Group RF power densities could be made.
Comparison of Current and Proposed Calculated Contributions of LCG Members
Below is a typical proposed antenna elevation pattern.