Attachment Rad_Safety Analysis

This document pretains to SES-LIC-20110209-00132 for License on a Satellite Earth Station filing.

IBFS_SESLIC2011020900132_868042

RF Radiation Safety Calculations Spreadsheet Copyright by Tim Shroyer, General Dynamics C4 Systems 2011 RF Safety Calculations based on OET Bulletin 65 for Parabolic Reflectors. Calculations are based on Bulletin 65 Equations 11 through 18. Input Values Frequency of Operation 14200 MHz Reflector Diameter 0.43 Meters Gain of Antenna 32.9 dBi Input Power to Antenna 13 dBW Input Power to Antenna 19.95 Watts Resultant EIRP 45.90 dBW 38904.51 Watts Power Density At Antenna Surface (From Bulletin 65 Equation 11) 2 Maximum Power Density At Antenna Surface = 549.58 W/m 2 Maximum Power Density At Antenna Surface = 54.96 mW/cm 2 Maximum Power Density At Antenna Surface = 17.40 dBW/cm Is this Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO Power Density in the Near-Field Region Extent of the Near-Field = 2.19 Meters (From Bulletin 65 Equation 12) Aperture Efficiency = 0.477 Units (From Bulletin 65 Equation 14) 2 On-Axis Near-Field Power Density = 262.10 W/m 2 (From Bulletin 65 Equation 13) 26.21 mW/cm Is this Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO Power Density in the Transition Region

Beginning of Far-Field Region = 5.25 Meters (From Bulletin 65 Equation 16) Transition Region Power Density (From Bulletin 65 Equation 17) In the Transition Region, Power Density varies from 2 Power Density = 26.21 mW/cm at 2.19 Meters 2 Power Density = 10.92 mW/cm at 5.25 Meters Is the Full Transition Region Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO At What Range Is Power Density Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= Too Many Meters For General Population/Uncontrolled Exposure (1 mW/cm 2)= Too Many Meters Power Density in the Far-Field Region Far-Field Starts at = 5.25 Meters 2 Power Density at the start of Far-Field Region = 11.23 mW/cm (From Bulletin 65 Equation 18) At What Range Is Power Density Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= 7.87 Meters For General Population/Uncontrolled Exposure (1 mW/cm 2)= 17.60 Meters

RF Radiation Safety Calculations Spreadsheet Copyright by Tim Shroyer, General Dynamics C4 Systems 2011 RF Safety Calculations based on OET Bulletin 65 for Parabolic Reflectors. Calculations are based on Bulletin 65 Equations 11 through 18. Input Values Frequency of Operation 14200 MHz Reflector Diameter 0.50 Meters Gain of Antenna 33.8 dBi Input Power to Antenna 13 dBW Input Power to Antenna 19.95 Watts Resultant EIRP 46.80 dBW 47863.01 Watts Power Density At Antenna Surface (From Bulletin 65 Equation 11) 2 Maximum Power Density At Antenna Surface = 406.47 W/m 2 Maximum Power Density At Antenna Surface = 40.65 mW/cm 2 Maximum Power Density At Antenna Surface = 16.09 dBW/cm Is this Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO Power Density in the Near-Field Region Extent of the Near-Field = 2.96 Meters (From Bulletin 65 Equation 12) Aperture Efficiency = 0.434 Units (From Bulletin 65 Equation 14) 2 On-Axis Near-Field Power Density = 176.38 W/m 2 (From Bulletin 65 Equation 13) 17.64 mW/cm Is this Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO Power Density in the Transition Region

Beginning of Far-Field Region = 7.10 Meters (From Bulletin 65 Equation 16) Transition Region Power Density (From Bulletin 65 Equation 17) In the Transition Region, Power Density varies from 2 Power Density = 17.64 mW/cm at 2.96 Meters 2 Power Density = 7.35 mW/cm at 7.10 Meters Is the Full Transition Region Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO At What Range Is Power Density Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= Too Many Meters For General Population/Uncontrolled Exposure (1 mW/cm 2)= Too Many Meters Power Density in the Far-Field Region Far-Field Starts at = 7.10 Meters 2 Power Density at the start of Far-Field Region = 7.56 mW/cm (From Bulletin 65 Equation 18) At What Range Is Power Density Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= 8.73 Meters For General Population/Uncontrolled Exposure (1 mW/cm 2)= 19.52 Meters

RF Radiation Safety Calculations Spreadsheet Copyright by Tim Shroyer, General Dynamics C4 Systems 2011 RF Safety Calculations based on OET Bulletin 65 for Parabolic Reflectors. Calculations are based on Bulletin 65 Equations 11 through 18. Input Values Frequency of Operation 14200 MHz Reflector Diameter 0.60 Meters Gain of Antenna 35.5 dBi Input Power to Antenna 13 dBW Input Power to Antenna 19.95 Watts Resultant EIRP 48.50 dBW 70794.58 Watts Power Density At Antenna Surface (From Bulletin 65 Equation 11) 2 Maximum Power Density At Antenna Surface = 282.27 W/m 2 Maximum Power Density At Antenna Surface = 28.23 mW/cm 2 Maximum Power Density At Antenna Surface = 14.51 dBW/cm Is this Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO Power Density in the Near-Field Region Extent of the Near-Field = 4.26 Meters (From Bulletin 65 Equation 12) Aperture Efficiency = 0.446 Units (From Bulletin 65 Equation 14) 2 On-Axis Near-Field Power Density = 125.81 W/m 2 (From Bulletin 65 Equation 13) 12.58 mW/cm Is this Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO Power Density in the Transition Region

Beginning of Far-Field Region = 10.22 Meters (From Bulletin 65 Equation 16) Transition Region Power Density (From Bulletin 65 Equation 17) In the Transition Region, Power Density varies from 2 Power Density = 12.58 mW/cm at 4.26 Meters 2 Power Density = 5.24 mW/cm at 10.22 Meters Is the Full Transition Region Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO At What Range Is Power Density Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= Too Many Meters For General Population/Uncontrolled Exposure (1 mW/cm 2)= Too Many Meters Power Density in the Far-Field Region Far-Field Starts at = 10.22 Meters 2 Power Density at the start of Far-Field Region = 5.39 mW/cm (From Bulletin 65 Equation 18) At What Range Is Power Density Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= 10.61 Meters For General Population/Uncontrolled Exposure (1 mW/cm 2)= 23.74 Meters

RF Radiation Safety Calculations Spreadsheet Copyright by Tim Shroyer, General Dynamics C4 Systems 2011 RF Safety Calculations based on OET Bulletin 65 for Parabolic Reflectors. Calculations are based on Bulletin 65 Equations 11 through 18. Input Values Frequency of Operation 14200 MHz Reflector Diameter 0.76 Meters Gain of Antenna 37.1 dBi Input Power to Antenna 13 dBW Input Power to Antenna 19.95 Watts Resultant EIRP 50.10 dBW 102329.30 Watts Power Density At Antenna Surface (From Bulletin 65 Equation 11) 2 Maximum Power Density At Antenna Surface = 175.93 W/m 2 Maximum Power Density At Antenna Surface = 17.59 mW/cm 2 Maximum Power Density At Antenna Surface = 12.45 dBW/cm Is this Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO Power Density in the Near-Field Region Extent of the Near-Field = 6.83 Meters (From Bulletin 65 Equation 12) Aperture Efficiency = 0.402 Units (From Bulletin 65 Equation 14) 2 On-Axis Near-Field Power Density = 70.65 W/m 2 (From Bulletin 65 Equation 13) 7.06 mW/cm Is this Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO Power Density in the Transition Region

Beginning of Far-Field Region = 16.40 Meters (From Bulletin 65 Equation 16) Transition Region Power Density (From Bulletin 65 Equation 17) In the Transition Region, Power Density varies from 2 Power Density = 7.06 mW/cm at 6.83 Meters 2 Power Density = 2.94 mW/cm at 16.40 Meters Is the Full Transition Region Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= NO For General Population/Uncontrolled Exposure (1 mW/cm 2)= NO At What Range Is Power Density Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= 9.66 Meters For General Population/Uncontrolled Exposure (1 mW/cm 2)= Too Many Meters Power Density in the Far-Field Region Far-Field Starts at = 16.40 Meters 2 Power Density at the start of Far-Field Region = 3.03 mW/cm (From Bulletin 65 Equation 18) At What Range Is Power Density Compliant With Limits? For Occupational/Controlled Exposure (5 mW/cm 2)= 12.76 Meters For General Population/Uncontrolled Exposure (1 mW/cm 2)= 28.54 Meters


Document Created: 2019-05-01 00:02:24
Document Modified: 2019-05-01 00:02:24
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