Attachment Technical Appendix

This document pretains to SES-LIC-20171116-01257 for License on a Satellite Earth Station filing.

IBFS_SESLIC2017111601257_1304018

ACS Internet LLC VSAT Network License Application Technical Appendix I. Frequency Coordination Reports II. Radiation Hazard Analyses

I. Frequency Coordination Reports Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 SUPPLEMENTAL SHOWING PART 101.103(D) File Number: K1726405 5.93 GHz Licensee: Alaska Communications Internet, LLC Page 1 _____________________________________________________________________________________ Pursuant to Parts 25.203 and 101.103(d) of the FCC Rules and Regulations, a frequency coordination study was conducted by Micronet Communications, Inc. for the following proposed earth station: Hub, AK The results of the study indicate that no unacceptable interference will result with existing, proposed or prior coordinated radio facilities. Coordination was performed with existing, proposed and prior coordinated carriers within coordination range on the following dates: 10/20/2017 Original PCN (Expedited response requested by 11/03/2017) There were no unresolved interference objections. The attached coordination data was forwarded on the latest date to the following parties within coordination range or their authorized coordination agents: ACS LONG DISTANCE LICENSE SUB, LLC ACS OF ANCHORAGE LICENSE SUB, INC. ACS OF ANCHORAGE LICENSE SUB, LLC ACS WIRELESS LICENSE SUB, LLC ALASCOM, INC. ALASKA PIPELINE COMPANY ALASKA PUBLIC TELECOMMUNICATIONS, INC ALASKA RAILROAD CORPORATION AT&T MOBILITY SPECTRUM LLC CHUGACH ELECTRIC ASSOCIATION, INC. COMSEARCH INC ENSTAR NATURAL GAS CO., A DIVISION OF SEMCO ENERGY, INC. GCI COMMUNICATION CORP. HOMER ELECTRIC ASSOCIATION MATANUSKA TELEPHONE ASSOCIATION MATANUSKA-SUSITNA, BOROUGH OF MICRONET COMMUNICATIONS INC MTA COMMUNICATIONS NORSTAR PIPELINE COMPANY, INC. AN ALASKA CORPORATION WHOLLY OWNE RADIO DYNAMICS STATE OF ALASKA VERIZON WIRELESS (VAW) LLC WIRELESS APPLICATIONS CORP

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 SUPPLEMENTAL SHOWING PART 101.103(D) File Number: K1726405 5.93 GHz Licensee: Alaska Communications Internet, LLC Page 2 _____________________________________________________________________________________ Respectfully Submitted, Jeremy Lewis Systems Engineer Attached: 1 data sheet

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 File: K1726405 ========================================================================== TECHNICAL CHARACTERISTICS OF TRANSMIT RECEIVE EARTH STATION ========================================================================== Company: Alaska Communications Internet, LLC Site Name, State: Hub, AK Call Sign: Latitude (NAD83) 61 8 28.4 N Longitude (NAD83) 149 52 30.7 W Elevation AMSL (ft/m) 134.51 41.00 Receive Frequency Range (MHz) 3704-3776 Transmit Frequency Range (MHz) 5929-6001 Range of Satellite Orbital Long. (deg W) 114.00 115.00 Range of Azimuths from North (deg) 140.45 141.49 Antenna Centerline (ft/m) 34.12 10.40 Antenna Elevation Angles (deg) 14.62 14.94 -------------------------------------------------------------------------- Equipment Parameters Receive Transmit -------------------------------------------------------------------------- Antenna Gain, Main Beam (dbI) 41.60 45.60 15 DB Half Beamwidth (deg) 1.50 1.00 Antennas Receive: PRODELIN 1383 (3.8 M) Transmit: PRODELIN 1383 (3.8M) Max Transmitter Power (dbW/4KHz) -19.20 Max EIRP Main Beam (dbW/4KHz) 26.40 Modulation / Emission Designator DIGITAL 7M00G7W -------------------------------------------------------------------------- Coordination Parameters Receive Transmit -------------------------------------------------------------------------- Max Greater Circle Distances (km) 351.92 162.77 Max Rain Scatter Distances (km) 281.38 100.00 Max Interference Power Long Term (dbW) -140.60 -154.00 Max Interference Power Short Term (dbW) -118.40 -130.80 Rain Zone / Radio Zone 3 A

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 SUPPLEMENTAL SHOWING PART 101.103(D) File Number: L1726405 5.93 GHz Licensee: Alaska Communications Internet, LLC Page 1 _____________________________________________________________________________________ Pursuant to Parts 25.203 and 101.103(d) of the FCC Rules and Regulations, a frequency coordination study was conducted by Micronet Communications, Inc. for the following proposed earth station: Hub, AK The results of the study indicate that no unacceptable interference will result with existing, proposed or prior coordinated radio facilities. Coordination was performed with existing, proposed and prior coordinated carriers within coordination range on the following dates: 10/20/2017 Original PCN (Expedited response requested by 11/03/2017) There were no unresolved interference objections. The attached coordination data was forwarded on the latest date to the following parties within coordination range or their authorized coordination agents: ACS LONG DISTANCE LICENSE SUB, LLC ACS OF ANCHORAGE LICENSE SUB, INC. ACS OF ANCHORAGE LICENSE SUB, LLC ACS WIRELESS LICENSE SUB, LLC ALASCOM, INC. ALASKA PIPELINE COMPANY ALASKA PUBLIC TELECOMMUNICATIONS, INC ALASKA RAILROAD CORPORATION AT&T MOBILITY SPECTRUM LLC CHUGACH ELECTRIC ASSOCIATION, INC. COMSEARCH INC ENSTAR NATURAL GAS CO., A DIVISION OF SEMCO ENERGY, INC. GCI COMMUNICATION CORP. HOMER ELECTRIC ASSOCIATION MATANUSKA TELEPHONE ASSOCIATION MATANUSKA-SUSITNA, BOROUGH OF MICRONET COMMUNICATIONS INC MTA COMMUNICATIONS NORSTAR PIPELINE COMPANY, INC. AN ALASKA CORPORATION WHOLLY OWNE RADIO DYNAMICS STATE OF ALASKA VERIZON WIRELESS (VAW) LLC WIRELESS APPLICATIONS CORP

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 SUPPLEMENTAL SHOWING PART 101.103(D) File Number: L1726405 5.93 GHz Licensee: Alaska Communications Internet, LLC Page 2 _____________________________________________________________________________________ Respectfully Submitted, Jeremy Lewis Systems Engineer Attached: 1 data sheet

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 File: L1726405 ========================================================================== TECHNICAL CHARACTERISTICS OF TRANSMIT RECEIVE EARTH STATION ========================================================================== Company: Alaska Communications Internet, LLC Site Name, State: Hub, AK Call Sign: Latitude (NAD83) 61 8 28.4 N Longitude (NAD83) 149 52 30.7 W Elevation AMSL (ft/m) 134.51 41.00 Receive Frequency Range (MHz) 3704-3776 Transmit Frequency Range (MHz) 5929-5944.85 Range of Satellite Orbital Long. (deg W) 114.00 115.00 Range of Azimuths from North (deg) 140.45 141.49 Antenna Centerline (ft/m) 34.12 10.40 Antenna Elevation Angles (deg) 14.62 14.94 -------------------------------------------------------------------------- Equipment Parameters Receive Transmit -------------------------------------------------------------------------- Antenna Gain, Main Beam (dbI) 41.60 45.60 15 DB Half Beamwidth (deg) 1.50 1.00 Antennas Receive: PRODELIN 1383 (3.8 M) Transmit: PRODELIN 1383 (3.8M) Max Transmitter Power (dbW/4KHz) -15.50 Max EIRP Main Beam (dbW/4KHz) 30.10 Modulation / Emission Designator DIGITAL 3M00G7W -------------------------------------------------------------------------- Coordination Parameters Receive Transmit -------------------------------------------------------------------------- Max Greater Circle Distances (km) 351.92 175.28 Max Rain Scatter Distances (km) 281.38 100.00 Max Interference Power Long Term (dbW) -140.60 -154.00 Max Interference Power Short Term (dbW) -118.40 -130.80 Rain Zone / Radio Zone 3 A

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 SUPPLEMENTAL SHOWING PART 101.103(D) File Number: M1726405 5.93 GHz Licensee: Alaska Communications Internet, LLC Page 1 _____________________________________________________________________________________ Pursuant to Parts 25.203 and 101.103(d) of the FCC Rules and Regulations, a frequency coordination study was conducted by Micronet Communications, Inc. for the following proposed earth station: Hub, AK The results of the study indicate that no unacceptable interference will result with existing, proposed or prior coordinated radio facilities. Coordination was performed with existing, proposed and prior coordinated carriers within coordination range on the following dates: 10/20/2017 Original PCN (Expedited response requested by 11/03/2017) There were no unresolved interference objections. The attached coordination data was forwarded on the latest date to the following parties within coordination range or their authorized coordination agents: ACS LONG DISTANCE LICENSE SUB, LLC ACS OF ANCHORAGE LICENSE SUB, INC. ACS OF ANCHORAGE LICENSE SUB, LLC ACS WIRELESS LICENSE SUB, LLC ALASCOM, INC. ALASKA PIPELINE COMPANY ALASKA PUBLIC TELECOMMUNICATIONS, INC ALASKA RAILROAD CORPORATION AT&T MOBILITY SPECTRUM LLC CHUGACH ELECTRIC ASSOCIATION, INC. COMSEARCH INC ENSTAR NATURAL GAS CO., A DIVISION OF SEMCO ENERGY, INC. GCI COMMUNICATION CORP. HOMER ELECTRIC ASSOCIATION MATANUSKA TELEPHONE ASSOCIATION MATANUSKA-SUSITNA, BOROUGH OF MICRONET COMMUNICATIONS INC MTA COMMUNICATIONS NORSTAR PIPELINE COMPANY, INC. AN ALASKA CORPORATION WHOLLY OWNE RADIO DYNAMICS STATE OF ALASKA VERIZON WIRELESS (VAW) LLC WIRELESS APPLICATIONS CORP

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 SUPPLEMENTAL SHOWING PART 101.103(D) File Number: M1726405 5.93 GHz Licensee: Alaska Communications Internet, LLC Page 2 _____________________________________________________________________________________ Respectfully Submitted, Jeremy Lewis Systems Engineer Attached: 1 data sheet

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 File: M1726405 ========================================================================== TECHNICAL CHARACTERISTICS OF TRANSMIT RECEIVE EARTH STATION ========================================================================== Company: Alaska Communications Internet, LLC Site Name, State: Hub, AK Call Sign: Latitude (NAD83) 61 8 28.4 N Longitude (NAD83) 149 52 30.7 W Elevation AMSL (ft/m) 134.51 41.00 Receive Frequency Range (MHz) 3704-3776 Transmit Frequency Range (MHz) 5929-6001 Range of Satellite Orbital Long. (deg W) 114.00 115.00 Range of Azimuths from North (deg) 140.45 141.49 Antenna Centerline (ft/m) 34.12 10.40 Antenna Elevation Angles (deg) 14.62 14.94 -------------------------------------------------------------------------- Equipment Parameters Receive Transmit -------------------------------------------------------------------------- Antenna Gain, Main Beam (dbI) 41.60 45.60 15 DB Half Beamwidth (deg) 1.50 1.00 Antennas Receive: PRODELIN 1383 (3.8 M) Transmit: PRODELIN 1383 (3.8M) Max Transmitter Power (dbW/4KHz) -21.00 Max EIRP Main Beam (dbW/4KHz) 24.60 Modulation / Emission Designator DIGITAL 9M50G7W -------------------------------------------------------------------------- Coordination Parameters Receive Transmit -------------------------------------------------------------------------- Max Greater Circle Distances (km) 351.92 156.69 Max Rain Scatter Distances (km) 281.38 100.00 Max Interference Power Long Term (dbW) -140.60 -154.00 Max Interference Power Short Term (dbW) -118.40 -130.80 Rain Zone / Radio Zone 3 A

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 SUPPLEMENTAL SHOWING PART 101.103(D) File Number: N1726405 5.93 GHz Licensee: Alaska Communications Internet, LLC Page 1 _____________________________________________________________________________________ Pursuant to Parts 25.203 and 101.103(d) of the FCC Rules and Regulations, a frequency coordination study was conducted by Micronet Communications, Inc. for the following proposed earth station: Anchorage, AK The results of the study indicate that no unacceptable interference will result with existing, proposed or prior coordinated radio facilities. Coordination was performed with existing, proposed and prior coordinated carriers within coordination range on the following dates: 10/20/2017 Original PCN (Expedited response requested by 11/03/2017) There were no unresolved interference objections. The attached coordination data was forwarded on the latest date to the following parties within coordination range or their authorized coordination agents: ACS LONG DISTANCE LICENSE SUB, LLC ACS OF ANCHORAGE LICENSE SUB, INC. ACS OF ANCHORAGE LICENSE SUB, LLC ACS WIRELESS LICENSE SUB, LLC ALASCOM, INC. ALASKA PIPELINE COMPANY ALASKA PUBLIC TELECOMMUNICATIONS, INC ALASKA RAILROAD CORPORATION AT&T MOBILITY SPECTRUM LLC CHUGACH ELECTRIC ASSOCIATION, INC. COMSEARCH INC ENSTAR NATURAL GAS CO., A DIVISION OF SEMCO ENERGY, INC. GCI COMMUNICATION CORP. HOMER ELECTRIC ASSOCIATION MATANUSKA TELEPHONE ASSOCIATION MATANUSKA-SUSITNA, BOROUGH OF MICRONET COMMUNICATIONS INC MTA COMMUNICATIONS NORSTAR PIPELINE COMPANY, INC. AN ALASKA CORPORATION WHOLLY OWNE RADIO DYNAMICS STATE OF ALASKA VERIZON WIRELESS (VAW) LLC WIRELESS APPLICATIONS CORP

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 SUPPLEMENTAL SHOWING PART 101.103(D) File Number: N1726405 5.93 GHz Licensee: Alaska Communications Internet, LLC Page 2 _____________________________________________________________________________________ Respectfully Submitted, Jeremy Lewis Systems Engineer Attached: 1 data sheet

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 File: N1726405 ========================================================================== TECHNICAL CHARACTERISTICS OF TRANSMIT RECEIVE EARTH STATION ========================================================================== Company: Alaska Communications Internet, LLC Site Name, State: Anchorage, AK Call Sign: Latitude (NAD83) 61 11 10.5 N Longitude (NAD83) 149 52 15.6 W Elevation AMSL (ft/m) 114.83 35.00 Receive Frequency Range (MHz) 3704-3776 Transmit Frequency Range (MHz) 5929-5944.85 Range of Satellite Orbital Long. (deg W) 114.00 115.00 Range of Azimuths from North (deg) 140.47 141.50 Antenna Centerline (ft/m) 34.12 10.40 Antenna Elevation Angles (deg) 14.59 14.90 -------------------------------------------------------------------------- Equipment Parameters Receive Transmit -------------------------------------------------------------------------- Antenna Gain, Main Beam (dbI) 37.60 41.60 15 DB Half Beamwidth (deg) 1.50 1.00 Antennas Receive: PRODELIN 1244 (2.4M) Transmit: PRODELIN 1244 (2.4M) Max Transmitter Power (dbW/4KHz) -21.00 Max EIRP Main Beam (dbW/4KHz) 20.60 Modulation / Emission Designator DIGITAL 4M70G7W -------------------------------------------------------------------------- Coordination Parameters Receive Transmit -------------------------------------------------------------------------- Max Greater Circle Distances (km) 347.44 154.87 Max Rain Scatter Distances (km) 281.43 100.00 Max Interference Power Long Term (dbW) -140.60 -154.00 Max Interference Power Short Term (dbW) -118.40 -130.80 Rain Zone / Radio Zone 3 A

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 SUPPLEMENTAL SHOWING PART 101.103(D) File Number: P1726405 5.93 GHz Licensee: Alaska Communications Internet, LLC Page 1 _____________________________________________________________________________________ Pursuant to Parts 25.203 and 101.103(d) of the FCC Rules and Regulations, a frequency coordination study was conducted by Micronet Communications, Inc. for the following proposed earth station: St Paul, AK The results of the study indicate that no unacceptable interference will result with existing, proposed or prior coordinated radio facilities. Coordination was performed with existing, proposed and prior coordinated carriers within coordination range on the following dates: 10/20/2017 Original PCN (Expedited response requested by 11/03/2017) There were no unresolved interference objections. The attached coordination data was forwarded on the latest date to the following parties within coordination range or their authorized coordination agents: COMSEARCH INC Respectfully Submitted, Jeremy Lewis Systems Engineer Attached: 1 data sheet

Micronet Communications, Inc. 720 F Avenue, Suite 100 Plano, Texas 75074 972-422-7200 File: P1726405 ========================================================================== TECHNICAL CHARACTERISTICS OF TRANSMIT RECEIVE EARTH STATION ========================================================================== Company: Alaska Communications Internet, LLC Site Name, State: St Paul, AK Call Sign: Latitude (NAD83) 57 7 23.0 N Longitude (NAD83) 170 16 45.0 W Elevation AMSL (ft/m) 26.25 8.00 Receive Frequency Range (MHz) 3704-3776 Transmit Frequency Range (MHz) 5929-6001 Range of Satellite Orbital Long. (deg W) 114.00 115.00 Range of Azimuths from North (deg) 119.27 120.20 Antenna Centerline (ft/m) 6.56 2.00 Antenna Elevation Angles (deg) 8.96 9.45 -------------------------------------------------------------------------- Equipment Parameters Receive Transmit -------------------------------------------------------------------------- Antenna Gain, Main Beam (dbI) 41.60 45.60 15 DB Half Beamwidth (deg) 1.00 1.00 Antennas Receive: PRODELIN 1383 (3.8 M) Transmit: PRODELIN 1383 (3.8M) Max Transmitter Power (dbW/4KHz) -26.20 Max EIRP Main Beam (dbW/4KHz) 19.40 Modulation / Emission Designator DIGITAL 3M20G7W -------------------------------------------------------------------------- Coordination Parameters Receive Transmit -------------------------------------------------------------------------- Max Greater Circle Distances (km) 369.72 146.43 Max Rain Scatter Distances (km) 291.78 100.00 Max Interference Power Long Term (dbW) -140.60 -154.00 Max Interference Power Short Term (dbW) -118.40 -130.80 Rain Zone / Radio Zone 3 A

II. Radiation Hazard Analyses ANALYSIS OF NON-IONIZING RADIATION for Alaska Communications Internet LLC Site: Hub State: AK Latitude: 61 8 28.4 Longitude: 149 52 30.7 (NAD83) 11-08-2017 The Office of Science and Technology Bulletin, No. 65, October 1985 and revised August 1997, specifies that the maximum level of non-ionizing radiation that a person may be exposed to over a six minute period is an average power density equal to 5 mW/cm**2 (five milliwatts per centimeter squared) for a controlled environment. For an uncontrolled environment, the maximum level of non-ionizing radiation that a person may be exposed to over a thirty minute period is an average power density equal to 1 mW/cm**2 (one milliwatt per centimeter squared). It is the purpose of this report to determine the maximum power flux densities of the earth station in the far zone, near zone, transition zone, at the main reflector surface, and between the antenna edge and the ground. Parameters which were used in the calculations: =============================================== Antenna Diameter, (D) = 3.8000 m Antenna Surface Area (Sa) = pi(D**2)/4 = 11.3411 m**2 Wavelength at 6.1750 GHz (lambda) = 0.0485 m Transmit Power at Flange (P) = 21.2000 Watts Antenna Gain at Earth Site (GES) = 45.6000 dBi = 36307.8055 Power Ratio: AntiLog(GES/10) pi = 3.1415927 Antenna Aperture Efficiency (n) = 0.6000

1. FAR ZONE CALCULATIONS ======================== Distance to the Far Zone (Df) = (n)(D**2) = 178.6392 m --------- lambda Far Zone Power Density (Rf) = (GES)(P) = 1.9194 W/m**2 ------------ 4*pi*(Df**2) = 0.1919 mW/cm**2 2. NEAR ZONE CALCULATIONS ========================= Power Flux Density is considered to be at a maximum value throughout the entire length of this Zone. The Zone is contained within a cylindrical volume which has the same diameter as the antenna. Beyond the Near Zone, the Power Flux Density will decrease with distance from the Antenna. Distance to the Near Zone (Dn) = D**2 = 74.4330 m -------- 4*lambda Near Zone Power Density (Rn) = 16.0(n)P = 4.4863 W/m**2 -------- pi(D**2) = 0.4486 mW/cm**2 3. TRANSITION ZONE CALCULATIONS =============================== The Power Density begins to decrease with distance in the Transition Zone. While the Power Density decreases inversely with distance in the Transition Zone, the Power Density decreases inversely with the square of the distance in the Far Zone. Since the maximum Power Density in the Transition Zone will not exceed the Near Zone values, it is not calculated.

4. MAIN REFLECTOR ZONE ====================== Main Reflector Power Density = 2(P) = 3.7386 W/m**2 ---- Sa = 0.3739 mW/cm**2 5. ZONE BETWEEN THE MAIN REFLECTOR AND THE GROUND ================================================= Applying uniform illumination of the Main Reflector Surface: Main to Ground Power Density = P = 1.8693 W/m**2 ---- Sa = 0.1869 mW/cm**2

CALCULATED SAFETY MARGINS SUMMARY AND EVALUATION -------------------------------------------------------------------------- Controlled Safety Margin = 5.0 - Calculated Zone Value (mW/cm**2) -------------------------------------------------------------------------- Safety Zones Margins Conclusions (mW/cm**2) ---------------------------- ------------ ---------------------------- 1. Far Zone 4.8081 Complies with ANSI 2. Near Zone 4.5514 Complies with ANSI 3. Transition Zone Rf < Rt < Rn Complies with ANSI 4. Main Reflector Surface 4.6261 Complies with ANSI 5. Main Reflector to Ground 4.8131 Complies with ANSI -------------------------------------------------------------------------- Uncontrolled Safety Margin = 1.0 - Calculated Zone Value (mW/cm**2) -------------------------------------------------------------------------- Safety Zones Margins Conclusions (mW/cm**2) ---------------------------- ------------ ---------------------------- 1. Far Zone 0.8081 Complies with ANSI 2. Near Zone 0.5514 Complies with ANSI 3. Transition Zone Rf < Rt < Rn Complies with ANSI 4. Main Reflector Surface 0.6261 Complies with ANSI 5. Main Reflector to Ground 0.8131 Complies with ANSI 6. EVALUATION ============== A. Controlled Environment B. Uncontrolled Environment All Zones comply with ANSI Standards.

ANALYSIS OF NON-IONIZING RADIATION for Alaska Communications Internet LLC Site: Anchorage State: AK Latitude: 61 11 10.5 Longitude: 149 52 15.6 (NAD83) 11-08-2017 The Office of Science and Technology Bulletin, No. 65, October 1985 and revised August 1997, specifies that the maximum level of non-ionizing radiation that a person may be exposed to over a six minute period is an average power density equal to 5 mW/cm**2 (five milliwatts per centimeter squared) for a controlled environment. For an uncontrolled environment, the maximum level of non-ionizing radiation that a person may be exposed to over a thirty minute period is an average power density equal to 1 mW/cm**2 (one milliwatt per centimeter squared). It is the purpose of this report to determine the maximum power flux densities of the earth station in the far zone, near zone, transition zone, at the main reflector surface, and between the antenna edge and the ground. Parameters which were used in the calculations: =============================================== Antenna Diameter, (D) = 2.4000 m Antenna Surface Area (Sa) = pi(D**2)/4 = 4.5239 m**2 Wavelength at 6.1750 GHz (lambda) = 0.0485 m Transmit Power at Flange (P) = 9.3300 Watts Antenna Gain at Earth Site (GES) = 41.6000 dBi = 14454.3977 Power Ratio: AntiLog(GES/10) pi = 3.1415927 Antenna Aperture Efficiency (n) = 0.6000

1. FAR ZONE CALCULATIONS ======================== Distance to the Far Zone (Df) = (n)(D**2) = 71.2577 m --------- lambda Far Zone Power Density (Rf) = (GES)(P) = 2.1135 W/m**2 ------------ 4*pi*(Df**2) = 0.2114 mW/cm**2 2. NEAR ZONE CALCULATIONS ========================= Power Flux Density is considered to be at a maximum value throughout the entire length of this Zone. The Zone is contained within a cylindrical volume which has the same diameter as the antenna. Beyond the Near Zone, the Power Flux Density will decrease with distance from the Antenna. Distance to the Near Zone (Dn) = D**2 = 29.6907 m -------- 4*lambda Near Zone Power Density (Rn) = 16.0(n)P = 4.9497 W/m**2 -------- pi(D**2) = 0.4950 mW/cm**2 3. TRANSITION ZONE CALCULATIONS =============================== The Power Density begins to decrease with distance in the Transition Zone. While the Power Density decreases inversely with distance in the Transition Zone, the Power Density decreases inversely with the square of the distance in the Far Zone. Since the maximum Power Density in the Transition Zone will not exceed the Near Zone values, it is not calculated.

4. MAIN REFLECTOR ZONE ====================== Main Reflector Power Density = 2(P) = 4.1248 W/m**2 ---- Sa = 0.4125 mW/cm**2 5. ZONE BETWEEN THE MAIN REFLECTOR AND THE GROUND ================================================= Applying uniform illumination of the Main Reflector Surface: Main to Ground Power Density = P = 2.0624 W/m**2 ---- Sa = 0.2062 mW/cm**2

CALCULATED SAFETY MARGINS SUMMARY AND EVALUATION -------------------------------------------------------------------------- Controlled Safety Margin = 5.0 - Calculated Zone Value (mW/cm**2) -------------------------------------------------------------------------- Safety Zones Margins Conclusions (mW/cm**2) ---------------------------- ------------ ---------------------------- 1. Far Zone 4.7886 Complies with ANSI 2. Near Zone 4.5050 Complies with ANSI 3. Transition Zone Rf < Rt < Rn Complies with ANSI 4. Main Reflector Surface 4.5875 Complies with ANSI 5. Main Reflector to Ground 4.7938 Complies with ANSI -------------------------------------------------------------------------- Uncontrolled Safety Margin = 1.0 - Calculated Zone Value (mW/cm**2) -------------------------------------------------------------------------- Safety Zones Margins Conclusions (mW/cm**2) ---------------------------- ------------ ---------------------------- 1. Far Zone 0.7886 Complies with ANSI 2. Near Zone 0.5050 Complies with ANSI 3. Transition Zone Rf < Rt < Rn Complies with ANSI 4. Main Reflector Surface 0.5875 Complies with ANSI 5. Main Reflector to Ground 0.7938 Complies with ANSI 6. EVALUATION ============== A. Controlled Environment B. Uncontrolled Environment All Zones comply with ANSI Standards.

ANALYSIS OF NON-IONIZING RADIATION for Alaska Communications Internet LLC Site: St Paul State: AK Latitude: 57 7 23.0 Longitude: 170 16 45.0 (NAD83) 11-08-2017 The Office of Science and Technology Bulletin, No. 65, October 1985 and revised August 1997, specifies that the maximum level of non-ionizing radiation that a person may be exposed to over a six minute period is an average power density equal to 5 mW/cm**2 (five milliwatts per centimeter squared) for a controlled environment. For an uncontrolled environment, the maximum level of non-ionizing radiation that a person may be exposed to over a thirty minute period is an average power density equal to 1 mW/cm**2 (one milliwatt per centimeter squared). It is the purpose of this report to determine the maximum power flux densities of the earth station in the far zone, near zone, transition zone, at the main reflector surface, and between the antenna edge and the ground. Parameters which were used in the calculations: =============================================== Antenna Diameter, (D) = 3.8000 m Antenna Surface Area (Sa) = pi(D**2)/4 = 11.3411 m**2 Wavelength at 6.1750 GHz (lambda) = 0.0485 m Transmit Power at Flange (P) = 1.9000 Watts Antenna Gain at Earth Site (GES) = 45.6000 dBi = 36307.8055 Power Ratio: AntiLog(GES/10) pi = 3.1415927 Antenna Aperture Efficiency (n) = 0.6000

1. FAR ZONE CALCULATIONS ======================== Distance to the Far Zone (Df) = (n)(D**2) = 178.6392 m --------- lambda Far Zone Power Density (Rf) = (GES)(P) = 0.1720 W/m**2 ------------ 4*pi*(Df**2) = 0.0172 mW/cm**2 2. NEAR ZONE CALCULATIONS ========================= Power Flux Density is considered to be at a maximum value throughout the entire length of this Zone. The Zone is contained within a cylindrical volume which has the same diameter as the antenna. Beyond the Near Zone, the Power Flux Density will decrease with distance from the Antenna. Distance to the Near Zone (Dn) = D**2 = 74.4330 m -------- 4*lambda Near Zone Power Density (Rn) = 16.0(n)P = 0.4021 W/m**2 -------- pi(D**2) = 0.0402 mW/cm**2 3. TRANSITION ZONE CALCULATIONS =============================== The Power Density begins to decrease with distance in the Transition Zone. While the Power Density decreases inversely with distance in the Transition Zone, the Power Density decreases inversely with the square of the distance in the Far Zone. Since the maximum Power Density in the Transition Zone will not exceed the Near Zone values, it is not calculated.

4. MAIN REFLECTOR ZONE ====================== Main Reflector Power Density = 2(P) = 0.3351 W/m**2 ---- Sa = 0.0335 mW/cm**2 5. ZONE BETWEEN THE MAIN REFLECTOR AND THE GROUND ================================================= Applying uniform illumination of the Main Reflector Surface: Main to Ground Power Density = P = 0.1675 W/m**2 ---- Sa = 0.0168 mW/cm**2

CALCULATED SAFETY MARGINS SUMMARY AND EVALUATION -------------------------------------------------------------------------- Controlled Safety Margin = 5.0 - Calculated Zone Value (mW/cm**2) -------------------------------------------------------------------------- Safety Zones Margins Conclusions (mW/cm**2) ---------------------------- ------------ ---------------------------- 1. Far Zone 4.9828 Complies with ANSI 2. Near Zone 4.9598 Complies with ANSI 3. Transition Zone Rf < Rt < Rn Complies with ANSI 4. Main Reflector Surface 4.9665 Complies with ANSI 5. Main Reflector to Ground 4.9832 Complies with ANSI -------------------------------------------------------------------------- Uncontrolled Safety Margin = 1.0 - Calculated Zone Value (mW/cm**2) -------------------------------------------------------------------------- Safety Zones Margins Conclusions (mW/cm**2) ---------------------------- ------------ ---------------------------- 1. Far Zone 0.9828 Complies with ANSI 2. Near Zone 0.9598 Complies with ANSI 3. Transition Zone Rf < Rt < Rn Complies with ANSI 4. Main Reflector Surface 0.9665 Complies with ANSI 5. Main Reflector to Ground 0.9832 Complies with ANSI 6. EVALUATION ============== A. Controlled Environment B. Uncontrolled Environment All Zones comply with ANSI Standards.


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