Exhibit 3D RADHAZ

0078-EX-ST-2005 Text Documents

HNS License Sub, LLC

2005-02-14ELS_69260

                               RADIATION HAZARD CALCULATIONS FOR                   1.80 meter EARTH STATION


               Nomenclature                Formula                       Value Unit


        INPUT PARAMETERS

D = Antenna Diameter                                                       1.80 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                      2.545     meters^2

l = Length of Near Field                    D^2/4k                          81     meters

L = Beginning of Far Field                 0.6D^2/k                       194      meters

G = Antenna Gain @ 30 GHz                 n(PI*D/k)^2                  214,278 53.3 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 = 1 mW/cm^2)


1 Near Field                                4nP/A                          0.05             < FCC MPE Limit

2 Far Field                              GP/(4(PI)L^2)                     0.02             < FCC MPE Limit

3 Transition                           <= Nr Fld Region                    0.05             < FCC MPE Limit

4 Near Reflector Surface                     4P/A                          0.08             < FCC MPE Limit

5 Between Reflector & Ground                  P/A                          0.02             < FCC MPE Limit

6 Between Reflector and Feed                  4P/a                       106.1         > FCC MPE Limit (See Attachment 1)



Document Created: 2005-02-14 11:14:33
Document Modified: 2005-02-14 11:14:33

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