Attachment Exhibits D1 and D2

This document pretains to SES-LIC-20111021-01243 for License on a Satellite Earth Station filing.

IBFS_SESLIC2011102101243_921990

Exhibit D1 HNS License Sub LLC Call Sign (New) Request for Modification RADIATION CALCULATIONS FOR Vertex RSI 6.3 meter EARTH STATION Nomenclature Formula Value Unit INPUT PARAMETERS M = Antenna Aperture Major Axis 6.30 meters m = Antenna Aperture Minor Axis 6.30 meters d = Diameter of Feed Mouth 0.152 meters f = frequency 29.175 GHz P = Max Power into Antenna 125.0 Watts n = Aperture Effeciency 60% k = Wavelength @ 29.18 GHz 0.0103 meters CALCULATED VALUES A = Area of Reflector PIxMxm/4 31.172 meters^2 l = Length of Near Field M^2/4k 966 meters L = Beginning of Far Field 0.6M^2/k 2318 meters G = Antenna Gain @ 29.18 GHz n(4xPIxA)/k^2 2,225,935 (63.5) dBi a = Area of Feed Mouth PI*d^2/4 0.0181 meters^2 POWER DENSITY CALCULATIONS Maximum Power Density in Region Region Hazard Assessment Formula Value (mW/cm^2 (FCC MPE Limit = 1 mW/cm^2) 1 Near Field 4nP/A 0.96 < FCC MPE Limit 2 Far Field GP/(4(PI)L^2) 0.41 < FCC MPE Limit 3 Transition <= Nr Fld Region 0.96 < FCC MPE Limit 4 Near Reflector Surface 4P/A 1.60 > FCC MPE Limit (See Exhibit A) 5 Between Reflector & Ground P/A 0.40 < FCC MPE Limit 6 Between Subreflector and 4P/a 2755.5 > FCC MPE Limit (See Exhibit A) Feed

Exhibit D2 HNS License Sub LLC Call Sign (New) Request for Modification RADIATION CALCULATIONS FOR GDSATCOM 8.1 meter EARTH STATION Nomenclature Formula Value Unit INPUT PARAMETERS M = Antenna Aperture Major Axis 8.10 meters m = Antenna Aperture Minor Axis 8.10 meters d = Diameter of Feed Mouth 0.152 meters f = frequency 29.175 GHz P = Max Power into Antenna 200.0 Watts n = Aperture Effeciency 60% k = Wavelength @ 29.18 GHz 0.0103 meters CALCULATED VALUES A = Area of Reflector PIxMxm/4 51.530 meters^2 l = Length of Near Field M^2/4k 1596 meters L = Beginning of Far Field 0.6M^2/k 3831 meters G = Antenna Gain @ 29.18 GHz n(4xPIxA)/k^2 3,679,606 (65.7) dBi a = Area of Feed Mouth PI*d^2/4 0.0181 meters^2 POWER DENSITY CALCULATIONS Maximum Power Density in Region Region Hazard Assessment Formula Value (mW/cm^2 (FCC MPE Limit = 1 mW/cm^2) 1 Near Field 4nP/A 0.93 < FCC MPE Limit 2 Far Field GP/(4(PI)L^2) 0.40 < FCC MPE Limit 3 Transition <= Nr Fld Region 0.93 < FCC MPE Limit 4 Near Reflector Surface 4P/A 1.55 > FCC MPE Limit (See Exhibit A) 5 Between Reflector & Ground P/A 0.39 < FCC MPE Limit 6 Between Subreflector and 4P/a 4408.7 > FCC MPE Limit (See Exhibit A) Feed


Document Created: 2011-10-21 13:29:21
Document Modified: 2011-10-21 13:29:21
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