Environmental Accessment

0215-EX-ML-2012 Text Documents

Boeing Company, The

2012-12-21ELS_132109

Environmental Assessment The Boeing Company Submitted by: Allen S. Lindsay, SR The Boeing Company Frequency Management Service Seattle, WA (206) 544-6053 Per CFR 47, section 1.1307.b(1), Table 1, all applications for experimental operations with an ERP greater than 100 watts require evaluation for compliance with human exposure limits defined in section 1.1310, and if exceeded require submission of an Environmental Assessment as defined in section 1.1311. The below calculations define the minimum safe working distance for both Occupational and General Public, which are based on the maximum permissible exposure limits of 5 mW/cm2 and 1 mW/cm2 respectively. These calculations were conducted using the highest gain antenna used in this operation. TX Peak Power (mW) 325000 TX Peak Power (dBm) 55.11883361 Maximum Antenna Gain dBi 3 EIRP (dBm) 58.11883361 Maximum Duty Cycle (Dc) 1 EIRP Watts 648.4602524 Avg EIRP Watts 648.4602524 TX Avg Power mW (Pavg) Pp*Dc 325000 Non Dimensional Antenna Gain dBi/10 Gt = 10 1.995262315 Occupational General Public Minimum Safe Distance - Meters 1.02 2.28 Distance in Centimeters (R) 102 228 AVG Power Density mW/CmCm Pd At distance=R 2 (Pavg*Gt)/(4*Pi)*R 4.959902661 0.992667499 Max Value 5 Max Value 1

Environmental Assessment The antenna will be operated in a controlled area and only authorized occupational workers will be allowed access to the area of operation. In addition the transmitter will be secured prior to conducting maintenance, and the area will be monitored during the operation to ensure that personnel are clear of any radiation hazard area.


Document Created: 2012-12-21 09:42:40
Document Modified: 2012-12-21 09:42:40
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