Environmental Assessment

0160-EX-ML-2013 Text Documents

Boeing Company, The

2013-08-26ELS_140675

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. The antenna is patch antenna array with a maximum 8 degree beam width. TX Peak Power (mW) 950000.00 TX Peak Power (dBm) 59.78 Maximum Antenna Gain dBi 22.00 EIRP (dBm) 81.78 Maximum Duty Cycle (Dc) 1.00 EIRP Watts 150564.85 Avg EIRP Watts 150564.85 TX Avg Power mW (Pavg) Pp*Dc 950000.00 Non Dimensional Antenna Gain dBi/10 Gt = 10 158.4893192 Occupational General Public Minimum Safe Distance - Meters 15.49 35 Distance in Centimeters (R) 1549 3500 AVG Power Density mW/CmCm Pd At distance=R 2 (Pavg*Gt)/(4*Pi)*R 4.993567281 0.978087374 Max Value 5 Max Value 1

Environmental Assessment The antenna will be operated in a controlled area, and will be directed towards the aircraft in flight. 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: 2013-08-26 06:53:22
Document Modified: 2013-08-26 06:53:22
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