Attachment Radiation Hazard Ex

This document pretains to SES-STA-20161123-00909 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2016112300909_1159538

Form 312 STA Interactivation Health Networks LLC November 2016 RADIATION HAZARD EXHIBITS

FCC OET-65 RF Exposure Study - Satellite Uplink Facility 4.57m Ku Band Antenna - The Wellness Network, Melbourne, FL FCC Maximum Permissible Exposure Levels Source Units 2 Public/uncontrolled area exposure limit 47CFR §1.1310 1 mW/cm 2 Occupational/controlled area exposure limit 47CFR §1.1310 5 mW/cm Input Data Antenna Diameter datasheet 457.0 cm Antenna surface area calculated 164030 cm2 Sub-reflector diameter measured 74.000 cm Sub-reflector area calculated 4301 cm2 Feed flange diameter measured 17.800 cm2 Feed flange area calculated 249 Frequency (entry) 14250 MHz Wavelength (speed of light = 299,792,458 m/s) calculated 2.104 cm Transmit power at flange Application 40000 milliwatts Antenna gain datasheet 54.9 dBi Antenna gain factor calculated 309030 Height of base of antenna above ground measured 0.68 m Height of center of antenna above ground measured 2.3 m Minimum Elevation Angle (entry) 20 degrees Minimum Elevation Angle calculated 0.34907 radians FCC Maximum Permissible Exposure (MPE) Results calculated using FCC Bulletin OET-65 (Edition 97-01 August 1997) Uncontrolled Controlled 2 Maximum power density at antenna surface Eq. 11 Pg 27 0.97543358 mW/cm Below FCC MPE Below FCC MPE Power density at subreflector Eq. 11 Pg 27 37.202032 mW/cm 2 Potential Hazard Potential Hazard Power density at feed flange Eq. 11 Pg 27 642.969092 mW/cm 2 Potential Hazard Potential Hazard Extent of near-field Eq. 12 Pg 27 24818 cm Maximum near-field power density Eq. 13 Pg 28 0.64725771 mW/cm 2 Below FCC MPE Below FCC MPE Aperture efficiency Eq. 14 Pg 28 0.66355898 Distance to beginning of far-field Eq. 16 Pg 29 59563.1712 cm Power density at end of the transition region Eq. 17 Pg 29 0.26969071 mW/cm 2 Below FCC MPE Below FCC MPE Maximum far-field power density Eq. 18 Pg 29 0.277 mW/cm 2 Below FCC MPE Below FCC MPE Main Beam Far-field region safe exposure distances Minimum distance for public/uncontrolled exposure Eq. 18 Pg 29 313.635391 meters Height at minimum antenna elevation angle calculated 109.569622 meters Horizontal distance calculated 294.720863 meters Minimum distance for occupational/controlled exposure Eq. 18 Pg 29 140.262011 meters Height at minimum antenna elevation angle calculated 50.2724331 meters Horizontal distance calculated 131.803177 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 2 Maximum off-axis near field power density Eq. 13 Pg 28 0.0065 mW/cm Below FCC MPE Below FCC MPE Public/uncontrolled exposure off-axis distance Diam/or Eq 17 4.57 meters Occupatonal/controlled exposure off-axis distance Diam/or Eq 17 4.57 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) 20 degree(s) Off-axis antenna gain factor OET-65 Pg 30* 1 Minimum distance for uncontrolled MPE limit calculated 0.53105264 meters Not valid if distance less the start of the far field Minimum distance for public/uncontrolled exposure Eq. 18 Pg 29 ** 595.631712 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. Prepared by Jim Lyons - TWN, 11/22/2016

FCC OET-65 RF Exposure Study - Satellite Uplink Facility 2.4m Ku Band Antenna - The Wellness Network, Melbourne, FL FCC Maximum Permissible Exposure Levels Source Units 2 Public/uncontrolled area exposure limit 47CFR §1.1310 1 mW/cm 2 Occupational/controlled area exposure limit 47CFR §1.1310 5 mW/cm Input Data Antenna Diameter datasheet 240.0 cm Antenna surface area calculated 45239 cm2 Sub-reflector diameter measured 24.000 cm Sub-reflector area calculated 11 cm2 Feed flange diameter measured 8.000 cm2 Feed flange area calculated 50 Frequency (entry) 14250 MHz Wavelength (speed of light = 299,792,458 m/s) calculated 2.104 cm Transmit power at flange Application 9170 milliwatts Antenna gain datasheet 48.9 dBi Antenna gain factor calculated 77625 Height of base of antenna above ground measured 0.68 m Height of center of antenna above ground measured 2.3 m Minimum Elevation Angle (entry) 20 degrees Minimum Elevation Angle calculated 0.34907 radians FCC Maximum Permissible Exposure (MPE) Results calculated using FCC Bulletin OET-65 (Edition 97-01 August 1997) Uncontrolled Controlled 2 Maximum power density at antenna surface Eq. 11 Pg 27 0.81080602 mW/cm Below FCC MPE Below FCC MPE Power density at subreflector Eq. 11 Pg 27 3334.54545 mW/cm 2 Potential Hazard Potential Hazard Power density at feed flange Eq. 11 Pg 27 729.725414 mW/cm 2 Potential Hazard Potential Hazard Extent of near-field Eq. 12 Pg 27 6845 cm Maximum near-field power density Eq. 13 Pg 28 0.49001166 mW/cm 2 Below FCC MPE Below FCC MPE Aperture efficiency Eq. 14 Pg 28 0.60435128 Distance to beginning of far-field Eq. 16 Pg 29 16427.3646 cm Power density at end of the transition region Eq. 17 Pg 29 0.20417152 mW/cm 2 Below FCC MPE Below FCC MPE Maximum far-field power density Eq. 18 Pg 29 0.210 mW/cm 2 Below FCC MPE Below FCC MPE Main Beam Far-field region safe exposure distances Minimum distance for public/uncontrolled exposure Eq. 18 Pg 29 75.2626899 meters Height at minimum antenna elevation angle calculated 28.041356 meters Horizontal distance calculated 70.7237943 meters Minimum distance for occupational/controlled exposure Eq. 18 Pg 29 33.6584981 meters Height at minimum antenna elevation angle calculated 13.8118844 meters Horizontal distance calculated 31.6286423 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 2 Maximum off-axis near field power density Eq. 13 Pg 28 0.0049 mW/cm Below FCC MPE Below FCC MPE Public/uncontrolled exposure off-axis distance Diam/or Eq 17 2.4 meters Occupatonal/controlled exposure off-axis distance Diam/or Eq 17 2.4 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) 20 degree(s) Off-axis antenna gain factor OET-65 Pg 30* 1 Minimum distance for uncontrolled MPE limit calculated 0.25426831 meters Not valid if distance less the start of the far field Minimum distance for public/uncontrolled exposure Eq. 18 Pg 29 ** 164.273646 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. Prepared by Jim Lyons - TWN, 11/23/2016


Document Created: 2016-11-23 21:19:21
Document Modified: 2016-11-23 21:19:21
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