Attachment Radiation Hazard

This document pretains to SES-LIC-INTR2019-02449 for License on a Satellite Earth Station filing.

IBFS_SESLICINTR201902449_1715590

Kepler Communications Inc. 196 Spadina Avenue, Suite 400 Toronto, ON Canada M5T 2C2 RADIATION HAZARD ASSESSMENT Presented here are the analyses pertaining to the emission of non-ionizing radiation by the antenna system(s) requested by this application. These analyses demonstrate how the requested antenna(s) will perform in accordance with the human exposure limits specified by the FCC Office of Engineering and Technology Bulletin No. 65. The following parameters are used across all calculations. Human Exposure Limits1 Parameter Value Units Condition Symbol Limit Controlled Environment 50 W/m^2 <= Plim Limit Uncontrolled Environment 10 W/m^2 <= Plim Constants Parameter Value Units Symbol Pi 3.1415927 real π Speed of Light 299,792,458 m/s c Contents C-Com Fly 981 ............................................................................................................................................. 2 Intellian v65 .................................................................................................................................................. 3 Intellian v85NX ............................................................................................................................................ 4 Intellian v240MT – 40 Watts (Minimum) .................................................................................................... 5 Intellian v240MT – 125 Watts (Maximum) .................................................................................................. 6 Sailor 900 ...................................................................................................................................................... 7 1 See OET Bulletin 65: Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields, Edition 97-01 at 67 (1997). June 3, 2019 Kepler Communications Inc. 1 of 7

Kepler Communications Inc. 196 Spadina Avenue, Suite 400 Toronto, ON Canada M5T 2C2 C-Com Fly 981 Basic Inputs Input Parameter Value Units Symbol Antenna Diameter 0.98 m D Antenna Transmit Gain 41.2 dBi G Transmit Frequency 1.430E+10 Hz f Power Input to the Antenna 8 Watts Pbuc Fixed Loss from Transmitter to Feed 1 dB Ploss Calculated Parameter Value Units Symbol Formula Total Feed Input Power 6.74 Watts P Pbuc - Ploss Antenna Surface Area 0.75 m^2 A πD²/4 Wavelength 0.021 m λ c/f Gain Factor 13182.57 real g 10^(G/10) Antenna Efficiency 0.61 real η gλ²/(π²D²) Max EIRP 49.49 dBW E G+P Antenna Field Distances Calculated Parameter Value Units Symbol Formula Near-Field Distance 11.45 m Rnf D²/(4λ) Distance to Far-Field 27.49 m Rff 0.6D²/λ Distance of Transition Range 11.45 m Rt Rt=Rnf Power Flux Density Pass Limit? Calculated Parameter Value Units Symbol Formula Controlled Uncontrolled Near Field Region 21.85 W/m^2 Snf 16ηP/(πD²) Yes No Far Field Region 9.36 W/m^2 Sff gP/(4πRff²) Yes Yes Transition Region 21.85 W/m^2 St Snf*Rnf/Rt Yes No At Main Reflector 35.75 W/m^2 Ssurface 4P/A Yes No b/w Reflector and Ground 8.94 W/m^2 Sg P/A Yes Yes Notes: • Antennas are to be installed in/operated toward areas that are inaccessible to the general public and other untrained personnel. June 3, 2019 Kepler Communications Inc. 2 of 7

Kepler Communications Inc. 196 Spadina Avenue, Suite 400 Toronto, ON Canada M5T 2C2 Intellian v65 Basic Inputs Input Parameter Value Units Symbol Antenna Diameter 0.65 m D Antenna Transmit Gain 37.7 dBi G Transmit Frequency 1.425E+10 Hz f Power Input to the Antenna 8 Watts Pbuc Fixed Loss from Transmitter to Feed 1 dB Ploss Calculated Parameter Value Units Symbol Formula Total Feed Input Power 6.74 Watts P Pbuc - Ploss Antenna Surface Area 0.33 m^2 A πD²/4 Wavelength 0.021 m λ c/f Gain Factor 5888.44 real g 10^(G/10) Antenna Efficiency 0.63 real η gλ²/(π²D²) Max EIRP 45.99 dBW E G+P Antenna Field Distances Calculated Parameter Value Units Symbol Formula Near-Field Distance 5.02 m Rnf D²/(4λ) Distance to Far-Field 12.05 m Rff 0.6D²/λ Distance of Transition Range 5.02 m Rt Rt=Rnf Power Flux Density Pass Limit? Calculated Parameter Value Units Symbol Formula Controlled Uncontrolled Near Field Region 50.79 W/m^2 Snf 16ηP/(πD²) No No Far Field Region 21.76 W/m^2 Sff gP/(4πRff²) Yes No Transition Region 50.79 W/m^2 St Snf*Rnf/Rt No No At Main Reflector 81.26 W/m^2 Ssurface 4P/A No No b/w Reflector and Ground 20.31 W/m^2 Sg P/A Yes No Notes: • Radomes will be used to prevent access to the feed flange and main reflector areas. • Antennas are to be installed in/operated toward areas that are inaccessible to the general public and other untrained personnel. • Radiation in the near field/transition regions will meet the exposure limits for controlled environments if antenna is operated below 7.89 watts. June 3, 2019 Kepler Communications Inc. 3 of 7

Kepler Communications Inc. 196 Spadina Avenue, Suite 400 Toronto, ON Canada M5T 2C2 Intellian v85NX Basic Inputs Input Parameter Value Units Symbol Antenna Diameter 0.85 m D Antenna Transmit Gain 40.7 dBi G Transmit Frequency 1.425E+10 Hz f Power Input to the Antenna 8 Watts Pbuc Fixed Loss from Transmitter to Feed 1 dB Ploss Calculated Parameter Value Units Symbol Formula Total Feed Input Power 6.74 Watts P Pbuc - Ploss Antenna Surface Area 0.57 m^2 A πD²/4 Wavelength 0.021 m λ c/f Gain Factor 11748.98 real g 10^(G/10) Antenna Efficiency 0.73 real η gλ²/(π²D²) Max EIRP 48.99 dBW E G+P Antenna Field Distances Calculated Parameter Value Units Symbol Formula Near-Field Distance 8.59 m Rnf D²/(4λ) Distance to Far-Field 20.61 m Rff 0.6D²/λ Distance of Transition Range 8.59 m Rt Rt=Rnf Power Flux Density Pass Limit? Calculated Parameter Value Units Symbol Formula Controlled Uncontrolled Near Field Region 34.65 W/m^2 Snf 16ηP/(πD²) Yes No Far Field Region 14.84 W/m^2 Sff gP/(4πRff²) Yes No Transition Region 34.65 W/m^2 St Snf*Rnf/Rt Yes No At Main Reflector 47.52 W/m^2 Ssurface 4P/A Yes No b/w Reflector and Ground 11.88 W/m^2 Sg P/A Yes No Notes: • Antennas are to be installed in/operated toward areas that are inaccessible to the general public and other untrained personnel. June 3, 2019 Kepler Communications Inc. 4 of 7

Kepler Communications Inc. 196 Spadina Avenue, Suite 400 Toronto, ON Canada M5T 2C2 Intellian v240MT – 40 Watts (Minimum) Basic Inputs Input Parameter Value Units Symbol Antenna Diameter 2.4 m D Antenna Transmit Gain 47.4 dBi G Transmit Frequency 1.425E+10 Hz f Power Input to the Antenna 40 Watts Pbuc Fixed Loss from Transmitter to Feed 1 dB Ploss Calculated Parameter Value Units Symbol Formula Total Feed Input Power 38.74 Watts P Pbuc - Ploss Antenna Surface Area 4.52 m^2 A πD²/4 Wavelength 0.021 m λ c/f Gain Factor 54954.09 real g 10^(G/10) Antenna Efficiency 0.43 real η gλ²/(π²D²) Max EIRP 63.28 dBW E G+P Antenna Field Distances Calculated Parameter Value Units Symbol Formula Near-Field Distance 68.45 m Rnf D²/(4λ) Distance to Far-Field 164.27 m Rff 0.6D²/λ Distance of Transition Range 68.45 m Rt Rt=Rnf Power Flux Density Pass Limit? Calculated Parameter Value Units Symbol Formula Controlled Uncontrolled Near Field Region 14.66 W/m^2 Snf 16ηP/(πD²) Yes No Far Field Region 6.28 W/m^2 Sff gP/(4πRff²) Yes Yes Transition Region 14.66 W/m^2 St Snf*Rnf/Rt Yes No At Main Reflector 34.25 W/m^2 Ssurface 4P/A Yes No b/w Reflector and Ground 8.56 W/m^2 Sg P/A Yes Yes Notes: • Antennas are to be installed in/operated toward areas that are inaccessible to the general public and other untrained personnel. June 3, 2019 Kepler Communications Inc. 5 of 7

Kepler Communications Inc. 196 Spadina Avenue, Suite 400 Toronto, ON Canada M5T 2C2 Intellian v240MT – 125 Watts (Maximum) Basic Inputs Input Parameter Value Units Symbol Antenna Diameter 2.4 m D Antenna Transmit Gain 47.4 dBi G Transmit Frequency 1.425E+10 Hz f Power Input to the Antenna 125 Watts Pbuc Fixed Loss from Transmitter to Feed 1 dB Ploss Calculated Parameter Value Units Symbol Formula Total Feed Input Power 123.74 Watts P Pbuc - Ploss Antenna Surface Area 4.52 m^2 A πD²/4 Wavelength 0.021 m λ c/f Gain Factor 54954.09 real g 10^(G/10) Antenna Efficiency 0.43 real η gλ²/(π²D²) Max EIRP 68.32 dBW E G+P Antenna Field Distances Calculated Parameter Value Units Symbol Formula Near-Field Distance 68.45 m Rnf D²/(4λ) Distance to Far-Field 164.27 m Rff 0.6D²/λ Distance of Transition Range 68.45 m Rt Rt=Rnf Power Flux Density Pass Limit? Calculated Parameter Value Units Symbol Formula Controlled Uncontrolled Near Field Region 46.81 W/m^2 Snf 16ηP/(πD²) Yes No Far Field Region 20.05 W/m^2 Sff gP/(4πRff²) Yes No Transition Region 46.81 W/m^2 St Snf*Rnf/Rt Yes No At Main Reflector 109.41 W/m^2 Ssurface 4P/A No No b/w Reflector and Ground 27.35 W/m^2 Sg P/A Yes No Notes: • Radomes will be used to prevent access to the feed flange and main reflector areas. • Antennas are to be installed in/operated toward areas that are inaccessible to the general public and other untrained personnel. June 3, 2019 Kepler Communications Inc. 6 of 7

Kepler Communications Inc. 196 Spadina Avenue, Suite 400 Toronto, ON Canada M5T 2C2 Sailor 900 Basic Inputs Input Parameter Value Units Symbol Antenna Diameter 1.03 m D Antenna Transmit Gain 41.6 dBi G Transmit Frequency 1.425E+10 Hz f Power Input to the Antenna 8 Watts Pbuc Fixed Loss from Transmitter to Feed 1 dB Ploss Calculated Parameter Value Units Symbol Formula Total Feed Input Power 6.74 Watts P Pbuc - Ploss Antenna Surface Area 0.83 m^2 A πD²/4 Wavelength 0.021 m λ c/f Gain Factor 14454.40 real g 10^(G/10) Antenna Efficiency 0.61 real η gλ²/(π²D²) Max EIRP 49.89 dBW E G+P Antenna Field Distances Calculated Parameter Value Units Symbol Formula Near-Field Distance 12.61 m Rnf D²/(4λ) Distance to Far-Field 30.26 m Rff 0.6D²/λ Distance of Transition Range 12.61 m Rt Rt=Rnf Power Flux Density Pass Limit? Calculated Parameter Value Units Symbol Formula Controlled Uncontrolled Near Field Region 19.77 W/m^2 Snf 16ηP/(πD²) Yes No Far Field Region 8.47 W/m^2 Sff gP/(4πRff²) Yes Yes Transition Region 19.77 W/m^2 St Snf*Rnf/Rt Yes No At Main Reflector 32.36 W/m^2 Ssurface 4P/A Yes No b/w Reflector and Ground 8.09 W/m^2 Sg P/A Yes Yes Notes: • Antennas are to be installed in/operated toward areas that are inaccessible to the general public and other untrained personnel. June 3, 2019 Kepler Communications Inc. 7 of 7


Document Created: 2019-06-03 13:13:43
Document Modified: 2019-06-03 13:13:43
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