Attachment SSB C2 Rad Haz

This document pretains to SES-MOD-20140930-00779 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2014093000779_1063187

Radiation Hazard Analysis Operator: SES Location Designation: Sunset Beach ES FCC Callsign: E090060 County: Honolulu SES ID: C2 Town: Haleiwa STA: State/Zip: Hawaii 96712 Input Values Value Unit Band Frequency D = Aperture Diameter 9.00 Meters L 1000-2000 d = Subreflector Diameter 0.94 Meters S 2000-4000 G = Antenna Gain 53.4 dBi C 4000-8000 FCC Designation C Band X 8000-12500 F = Frequency 6.005 GHz Ku 12500-18000 P = Transmitter Power Watts: 1445 Watts K 18000-25500 R ua = closest point to uncontrolled area 50 meters Ka 26500-40000 Elevation angle at closest point R ua 10 Degrees O 40000-50000 Height (AGL) 8.68 meters V 50000-75000 OET 65 Calculated Values Formula Value Unit c λ= Wavelength 0.0499 meters F (G/10) G = Antenna Gain 10 218776.1624 (W) linear Gλ2/4π η = Apperture Efficiency 68% percentage πD2/4 A = Area of reflector πR2 63.617 meters 2 a = area of subreflector πr2 6939.778 cm 2 D2 405.608 meters R nf = Near-Field Region 4λ 70 Meters AGL >Rnf 405.608 >meters R t = Transition Region <Rff 973.459 <meters R ff = Far Field Region 0.6D2 973.459 meters λ 169 Meters AGL Exposure Limits Radiation Analysis Zone Formula Level Value General Public Occupational <1mW/cm2 <5mW/cm2 4P >FCC MPE See >FCC MPE See 1 Power Subreflector 832.880 mW/cm2 a Note 1 Note 2 4P >FCC MPE See >FCC MPE See 2 Antenna Surface 9.086 mW/cm2 A Note 1 Note 2 P >FCC MPE See 3 Main Reflector Ground 2.271 mW/cm2 <FCC MPE A Note 1 4η P >FCC MPE See >FCC MPE See 4 S nf =Near-Field Power Density 6.197 mW/cm2 A Note 1 Note 2 >FCC MPE See >FCC MPE See 5 S t = Max Transition Power Density < Snf 6.197 mW/cm2 Note 1 Note 2 PG >FCC MPE See 6 S ff = Max Far field Power Density 2.655 mW/cm2 <FCC MPE 4πRff2 Note 3 7 Off Access Level Near Field Snf - 20 dB 0.06197 mW/cm2 <FCC MPE <FCC MPE Notes 1. The antenna is installed in a controlled location access is restricted to authorized personnel only. The antenna is marked with RF Radiation Hazard signage. 2. Inside the controlled area, MPE levels exceed the MPE exposure for occupational levels. The levels will be reduced to safe MPE by removing power to the transmitters when work is performed on or around the antenna. This area can only be accessed by qualified personnel. 3. The field develops 8.68 meters above ground level at the minimum elevation angle which is not accessable to the general public. Generated 9/26/2014 1 of 1 rad haz SSB C2.xls


Document Created: 2014-09-26 17:37:10
Document Modified: 2014-09-26 17:37:10
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