Attachment RadHaz Cheyenne

This document pretains to SES-LIC-20160209-00122 for License on a Satellite Earth Station filing.

IBFS_SESLIC2016020900122_1125283

Radiation Hazard Analysis Operator: SES Location Designation: Echostar Cheyenne FCC Callsign: County: Laramie SES ID: Town: Cheyenne STA: State/Zip: WY 82007 Input Values Value Unit Band Frequency D = Aperture Diameter 7.30 Meters L 1000-2000 d = Subreflector Diameter 0.56 Meters S 2000-4000 G = Antenna Gain 64.6 dBi C 4000-8000 FCC Designation Ka Band X 8000-12500 F = Frequency 28.000 GHz Ku 12500-18000 P = Transmitter Power Watts: 150 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) 10.00 meters V 50000-75000 OET 65 Calculated Values Formula Value Unit c λ= Wavelength 0.0107 meters F G = Antenna Gain 10 (G/10) 2884031.503 (W) linear Gl2/4p h = Apperture Efficiency 63% percentage pD2/4 A = Area of reflector pR2 41.854 meters 2 a = area of subreflector pr2 2463.009 cm 2 D2 1244.263 meters R nf = Near-Field Region 4l 216 Meters AGL >Rnf 1244.263 >meters R t = Transition Region <Rff 2986.231 <meters 0.6D2 2986.231 meters R ff = Far Field Region l 519 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 243.605 mW/cm2 a Note 1 Note 2 4P >FCC MPE See 2 Antenna Surface 1.434 mW/cm2 <FCC MPE A Note 1 P 3 Main Reflector Ground 0.358 mW/cm2 <FCC MPE <FCC MPE A 4h P 4 S nf =Near-Field Power Density 0.901 mW/cm2 <FCC MPE <FCC MPE A 5 S t = Max Transition Power Density < Snf 0.901 mW/cm2 <FCC MPE <FCC MPE PG 6 S ff = Max Far field Power Density 0.386 mW/cm2 <FCC MPE <FCC MPE 4pRff2 7 Off Access Level Near Field Snf - 20 dB 0.00901 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 10 meters above ground level at the minimum elevation angle which is not accessable to the general public. Generated 2/9/2016 1 of 1 rad haz auto report-tk-mod


Document Created: 2016-02-09 15:10:18
Document Modified: 2016-02-09 15:10:18
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