Attachment EXHIBIT B

This document pretains to SES-MOD-20170419-00443 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2017041900443_1205589

RADIATION CALCULATIONS FOR 1.20 meter EARTH STATION Nomenclature Formula Value Unit INPUT PARAMETERS M = Antenna Aperture Major Axis 1.20 meters m = Antenna Aperture Minor Axis 1.20 meters d = Diameter of Feed Mouth 0.133 meters f= frequency 14.25 |GHz P = Max Powerinto Antenna 2.0 Watts n = Aperture Effeciency 63% k = Wavelength @ 14.25 GHz 0.0210 meters CALCULATED VALUES A = Area of Reflector PixMxm/4 1.131 meters*2 1 = Length of Near Field M*2/4k 17 meters L = Beginning of Far Field 0.6M*A2/k 41 meters G = Antenna Gain @ 14.25 GHz n{4xPlxA)/k*2 20,230 (43.1) dBi a = Area of Feed Mouth PI*d*2/4 0.0140 meters*2 POWER DENSITY CALCULATIONS Maximum Power Density in Region Region Hazard Assessment Formula Value (mW/cm*3 (FCC MPE Limit= 1 mW/cm*2) 1 Near Field 4nP/A 0.45 <FCC MPE Limit 2 Far Field GP/(4(PDLA2) 0.19 <FCC MPE Limit 3 Transition <= Nr Fid Region 0.45 <FCC MPE Limit 4 Near Reflector Surface 4P/A 0.71 <FCC MPE Limit 5 Between Reflector & Ground P/A 0.18 <FCC MPE Limit 6 Between Reflector and Feed 4P/a 57.3 > FCC MPE Limit (See Exhibit A)


Document Created: 2017-04-14 10:41:53
Document Modified: 2017-04-14 10:41:53
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