Exhibit 3B RADHAZ

0026-EX-ML-2005 Text Documents

HNS License Sub, LLC

2005-02-14ELS_69251

RADIATION HAZARD CALCULATIONS FOR 0.98 meter EARTH STATION Nomenclature Formula Value Unit INPUT PARAMETERS D = Antenna Diameter 0.98 meters d = Diameter of Feed Mouth 0.049 meters P = Max Power into Antenna 0.5 Watts n = Apperture Effeciency 67% k = Wavelength @ 30 GHz 0.0100 meters CALCULATED VALUES A = Area of Reflector PI*D^2/4 0.754 meters^2 l = Length of Near Field D^2/4k 24 meters L = Beginning of Far Field 0.6D^2/k 58 meters G = Antenna Gain @ 30 GHz n(PI*D/k)^2 63,516 48.0 dBi a = Area of Feed Mouth PI*d^2/4 0.0019 meters^2 POWER DENSITY CALCULATIONS Maximum Power Density in Region Region Hazard Assessment Formula Value (mW/cm^2) (FCC MPE Limit = 5 mW/cm^2) 1 Near Field 4nP/A 0.18 < FCC MPE Limit 2 Far Field GP/(4(PI)L^2) 0.08 < FCC MPE Limit 3 Transition <= Nr Fld Region 0.18 < FCC MPE Limit 4 Near Reflector Surface 4P/A 0.27 < FCC MPE Limit 5 Between Reflector & Ground P/A 0.07 < FCC MPE Limit 6 Between Reflector and Feed 4P/a 106.1 > FCC MPE Limit (See Attachment 1)


Document Created: 2005-02-14 11:04:40
Document Modified: 2005-02-14 11:04:40
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