Attachment Radiation Hazard

This document pretains to SES-MFS-20110701-00767 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2011070100767_901685

EXHIBIT B HNS License Sub, LLC Call Sign E060445 Form 312 Amendment July 2011 Radiation Hazard Exhibits

Exhibit B (1) HNS License Sub LLC Call Sign E060445 Request for Modification RADIATION CALCULATIONS FOR AvL 1.0 meter EARTH STATION Nomenclature Formula Value Unit INPUT PARAMETERS M = Antenna Aperture Major Axis 1.00 meters m = Antenna Aperture Minor Axis 1.00 meters d = Diameter of Feed Mouth 0.133 meters f = frequency 29.75 GHz P = Max Power into Antenna 3.3 Watts n = Aperture Effeciency 60% k = Wavelength @ 29.75 GHz 0.0101 meters CALCULATED VALUES A = Area of Reflector PIxMxm/4 0.785 meters^2 l = Length of Near Field M^2/4k 25 meters L = Beginning of Far Field 0.6M^2/k 60 meters G = Antenna Gain @ 29.75 GHz n(4xPIxA)/k^2 58,315 (47.7) dBi a = Area of Feed Mouth PI*d^2/4 0.0139 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 0.99 < FCC MPE Limit 2 Far Field GP/(4(PI)L^2) 0.43 < FCC MPE Limit 3 Transition <= Nr Fld Region 0.99 < FCC MPE Limit 4 Near Reflector Surface 4P/A 1.66 > FCC MPE Limit (See Exhibit A) 5 Between Reflector & Ground P/A 0.41 < FCC MPE Limit 6 Between Reflector and Feed 4P/a 93.6 > FCC MPE Limit (See Exhibit A)

Exhibit B (2) HNS License Sub LLC Call Sign E060445 Request for Modification RADIATION CALCULATIONS FOR AvL 1.2 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 29.75 GHz P = Max Power into Antenna 4.6 Watts n = Aperture Effeciency 61% k = Wavelength @ 29.75 GHz 0.0101 meters CALCULATED VALUES A = Area of Reflector PIxMxm/4 1.131 meters^2 l = Length of Near Field M^2/4k 36 meters L = Beginning of Far Field 0.6M^2/k 86 meters G = Antenna Gain @ 29.75 GHz n(4xPIxA)/k^2 85,374 (49.3) dBi a = Area of Feed Mouth PI*d^2/4 0.0139 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 0.99 < FCC MPE Limit 2 Far Field GP/(4(PI)L^2) 0.43 < FCC MPE Limit 3 Transition <= Nr Fld Region 0.99 < FCC MPE Limit 4 Near Reflector Surface 4P/A 1.63 > FCC MPE Limit (See Exhibit A) 5 Between Reflector & Ground P/A 0.41 < FCC MPE Limit 6 Between Reflector and Feed 4P/a 132.4 > FCC MPE Limit (See Exhibit A)


Document Created: 2011-07-01 12:20:12
Document Modified: 2011-07-01 12:20:12
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