Attachment WRAL_4.5m_OET65_RF_E

This document pretains to SES-LIC-20160218-00141 for License on a Satellite Earth Station filing.

IBFS_SESLIC2016021800141_1126342

FCC OET-65 RF Exposure Study - Satellite Uplink Facility WRAL 4.5 meter Digital Ku-band uplink FCC Maximum Permissible Exposure Levels Source Units Public/uncontrolled area exposure limit 47CFR §1.1310 1 mW/cm2 Occupational/controlled area exposure limit 47CFR §1.1310 5 mW/cm2 Input Data Antenna Diameter datasheet 450.0 cm Antenna surface area calculated 159043 cm2 Sub-reflector diameter measured n/a cm Prime focus antenna Sub-reflector area calculated n/a cm2 Feed flange diameter datasheet 19.500 cm2 Feed flange area calculated 299 Frequency (entry) 14500 MHz Wavelength (speed of light = 299,792,458 m/s) calculated 2.068 cm Transmit power at flange Application 18900 milliwatts Antenna gain datasheet 53.9 dBi Antenna gain factor calculated 245471 Height of base of antenna above ground/roof datasheet 1.56 m Height of center of antenna above ground/roof datasheet 3.69 m Minimum Elevation Angle (entry) 12 degrees Minimum Elevation Angle calculated 0.20944 radians FCC Maximum Permissible Exposure (MPE) Results calculated using FCC Bulletin OET-65 (Edition 97-01 August 1997) Uncontrolled Controlled Maximum power density at antenna surface Eq. 11 Pg 27 0.48 mW/cm2 Below FCC MPE Below FCC MPE Power density at subreflector Eq. 11 Pg 27 N/A mW/cm2 N/A N/A Power density at feed flange Eq. 11 Pg 27 253.14 mW/cm2 Potential Hazard Potential Hazard Extent of near-field Eq. 12 Pg 27 24486 cm Maximum near-field power density Eq. 13 Pg 28 0.25 mW/cm2 Below FCC MPE Below FCC MPE Aperture efficiency Eq. 14 Pg 28 0.53 Distance to beginning of far-field Eq. 16 Pg 29 58765.65 cm Power density at end of the transition regiion Eq. 17 Pg 29 0.1 mW/cm2 Below FCC MPE Below FCC MPE Maximum far-field power density Eq. 18 Pg 29 0.107 mW/cm2 Below FCC MPE Below FCC MPE Main Beam Far-field region safe exposure distances Minimum distance for public/uncontrolled exposure Eq. 18 Pg 29 192.14 meters Height at minimum antenna elevation angle calculated 43.64 meters Horizontal distance calculated 187.94 meters Minimum distance for occupational/controlled exposure Eq. 18 Pg 29 85.93 meters Height at minimum antenna elevation angle calculated 21.56 meters Horizontal distance calculated 84.05 meters Off-Axis Near Field/Transition Region safe exposure distances from antenna (20 dB reduction in power density at distances greater than one antenna diameter from the main beam center.) OET-65 Pg 30 Maximum off-axis near field power density Eq. 13 Pg 28 0.0025 mW/cm2 Below FCC MPE Below FCC MPE Public/uncontrolled exposure off-axis distance Diam/or Eq 17 4.5 meters Occupatonal/controlled exposure off-axis distance Diam/or Eq 17 4.5 meters Off-Axis Far Field safe exposure distances from the antenna (Based on side lobe attenuation required by FCC 25.209(a)(2)) Angle off main beam axis (1 to 48 degrees) (entry) 5 degree(s) Off-axis antenna gain factor OET-65 Pg 30* 28 Minimum distance for public/uncontrolled exposure Eq. 18 Pg 29 ** 587.66 meters * Gain converted from dBi to linear multiple ** If calculated distance is less than the start of the far field region, the distance to the start of the far field region is used. Uplink Remote Control Point Data WRAL 4.5 meter Digital Ku-band uplink Location: 30 Rockefeller Plaza New York, NY 10112 Telephone Number: (212) 664-1900 Prepared by Doug Lung, NBC Universal, February 12, 2016


Document Created: 2019-04-17 09:27:59
Document Modified: 2019-04-17 09:27:59
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