Attachment Rad Haz Analysis

This document pretains to SES-LIC-20170726-00810 for License on a Satellite Earth Station filing.

IBFS_SESLIC2017072600810_1233845

Radiation Hazard Analysis Operator: SES Location Designation: Laredo FCC Callsign: County: SES ID: Town: Laredo STA: State/Zip: Texas Input Values Value Unit Band Frequency D = Aperture Diameter 6.30 Meters L 1000-2000 d = Subreflector Diameter 0.7 Meters S 2000-4000 G = Antenna Gain 62.8 dBi C 4000-8000 FCC Designation Ka Band X 8000-12500 F = Frequency 28.000 GHz Ku 12500-18000 P = Transmitter Power Watts: 447 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) 2.50 meters V 50000-75000 OET 65 Calculated Values Formula Value Unit c λ= Wavelength 0.0107 meters F (G/10) G = Antenna Gain 10 1905460.718 (W) linear 2 Gλ /4π η = Apperture Efficiency 56% percentage πD2/4 A = Area of reflector πR2 31.172 meters 2 πr 2 2 a = area of subreflector 3848.451 cm 2 D 926.718 meters R nf = Near-Field Region 4λ 161 Meters AGL >Rnf 926.718 >meters R t = Transition Region <Rff 2224.123 <meters 0.6D2 2224.123 meters R ff = Far Field Region λ 386 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 464.603 mW/cm2 a Note 1 Note 2 4P >FCC MPE See >FCC MPE See 2 Antenna Surface 5.736 mW/cm2 A Note 1 Note 2 P >FCC MPE See 3 Main Reflector Ground 1.434 mW/cm2 <FCC MPE A Note 1 4η P >FCC MPE See 4 S nf =Near-Field Power Density 3.199 mW/cm2 <FCC MPE A Note 1 >FCC MPE See 5 S t = Max Transition Power Density < Snf 3.199 mW/cm2 <FCC MPE Note 1 PG >FCC MPE See 6 S ff = Max Far field Power Density 1.370 mW/cm2 <FCC MPE 4πRff2 Note 3 7 Off Access Level Near Field Snf - 20 dB 0.03199 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 2.5 meters above ground level at the minimum elevation angle which is not accessable to the general public. Generated 6/2/2017 1 of 1 rad haz auto report-tk-mod-Laredo


Document Created: 2017-06-02 16:36:42
Document Modified: 2017-06-02 16:36:42
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC