Environmental Assessment

0311-EX-CN-2018 Text Documents

Insitu

2018-04-06ELS_207640

Environmental Assessment 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) 500000.00 TX Peak Power (dBm) 56.99 Maximum Antenna Gain dBi 0.00 EIRP (dBm) 56.99 Maximum Duty Cycle (Dc) 1.00 EIRP Watts 500.00 Avg EIRP Watts 500.00 TX Avg Power mW (Pavg) Pp*Dc 500000.00 Non Dimensional Antenna Gain Gt = 10dBi/10 1 Occupational General Public Minimum Safe Distance - Meters 0.9 2 Distance in Centimeters (R) 90 200 AVG Power Density mW/CmCm Pd At distance=R (Pavg*Gt)/(4*Pi)*R2 4.912189602 0.994718394 The antenna will be onboard 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: 2018-04-06 10:11:15
Document Modified: 2018-04-06 10:11:15
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