Attachment Exhibit B

This document pretains to SES-MFS-20190710-00898 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2019071000898_1785723

SES LINK BUDGET ANALYSIS TR>>XPDRS 14295 11995 2 VLP HLP PREPARED BY sbolook DATE 20-Jun-19 BUSINESS PARTNER PROJECT GEE SES-14 NA REVISION GEE SES-14 NA Analysis The information provided herein is for informational purposes only and does not represent a performance obligation or liability on SES or any of its affiliates. © 2019 SES, All rights reserved. Satellite SES-14 Orbital location °E -47.50 Transponder information Transponder ID NAV-D21/NAH-D21 (Multi-Carrier) FCA37 Center frequency and polarisation (U/D) MHz 14295 VLP / 11995 HLP Bandwidth MHz 72.00 Transponder Dlk Saturation EIRP Towards Beam-Peak dBW 54.24 Transponder Beam-Peak G/T dB/K 8.01 Beam-Peak SFD dBW/m² -92.17 Operational mode Multiple Carrier, [IBO: -4.5 dB | OBO: -3.5 dB] Inclined (Yes,No) 0 No AGGREGATE RESOURCE REQUIREMENTS Capacity Balanced / BW / PWR Limited Number of carriers in transponder 3 Required bandwidth MHz 70.3 Allocated bandwidth MHz 59.32 PEB of carriers MHz 70.29 ANALYSIS HIGHLIGHTS ACROSS ALL SITES IN ANALYSIS Link margin review [over sites] Site with highest clear sky link margin Ku_Tecom_KuStream1000 >Holmdel Teleport Woodbine K-13 SES-14 Ku-Band TT&C/GW : 1.8 dB Site with lowest clear sky link margin Holmdel Teleport Woodbine K-13 SES-14 Ku-Band TT&C/GW>Ku_Tecom_KuStream1000 : 0.2 dB Link availability review [over sites] Site with highest link availability Holmdel Teleport Woodbine K-13 SES-14 Ku-Band TT&C/GW>Ku_Tecom_KuStream1000 : 99.6226 % Site with lowest link availability Ku_Tecom_KuStream1000 >Holmdel Teleport Woodbine K-13 SES-14 Ku-Band TT&C/GW : 99.0000 % GEE D21 RTN 512kbps CXR v6 GEE D21 RTN 1024kb CXR v6 GEE D21 FWD 54MHz CXR v6 Calculation type Uncorrelated rain events Uncorrelated rain events Uncorrelated rain events Carrier Name GEE D21 RTN 512kbps CX GEE D21 RTN 1024kb C GEE D21 FWD 54MHz CXR v6 Carrier PEB MHz 0.09 0.19 70.00 Carrier Predicted Total C/(N+I) dB 1.05 4.06 6.50 Link total Eb/No dB 7.07 7.07 4.31 Required Eb/No (including implementation and additional margin) dB 5.30 5.30 4.16 Link closes? [3 out of 3] Yes Yes Yes Link margin in clear sky (For ACM carriers, residual margin in CS) dB 1.77 1.77 0.15 Target Link Availability % yr 99.000 99.000 99.000 Achieved Link Availability % yr 99.000 99.000 99.623 Availability Requirement Satisfied? [3 out of 3] Yes Yes Yes Balanced/Power/Bandwidth limited BW Lim BW Lim PWR Lim Summary of carrier emission levels in dBW/Hz Carrier power density at transmit antenna flange dBW/Hz -53.28 -50.23 -66.07 Carrier Uplink EIRP density dBW/Hz -24.99 -21.95 -8.86 Carrier power flux spectral density dBW/m2/Hz -187.98 -184.94 -173.32 Carrier Downlink EIRP density at beam peak dBW/Hz -41.17 -38.13 -25.91 EARTH STATIONS Tx earth station ID Ku_Tecom_KuStream1000 Ku_Tecom_KuStream10 Holmdel Teleport Woodbine K-13 SES-14 Ku-Band TT&C/GW Latitude °N 38.84 38.84 40.39 DISCLAIMER: The information provided herein is for informational purposes only and does not represent a performance obligation or liability on SES or any of its affiliates. NAV-D21_NAH-D21 (Multi-Carri+01 Page 1 of 3

SES LINK BUDGET ANALYSIS Longitude °E -76.22 -76.22 285.83 Antenna diameter m 0.38 0.38 6.10 Skew angle at transmit location deg. 30.65 30.65 27.65 Effective (Refracted) Elevation deg. 36.24 36.24 36.03 Uplink aspect correction dB 0.73 0.73 1.71 Receive earth station ID Holmdel Teleport Woodbine Holmdel Teleport Woodb Ku_Tecom_KuStream1000 Latitude °N 40.39 40.39 38.84 Longitude °E 285.83 285.83 -76.22 Antenna diameter m 6.10 6.10 0.38 Skew angle at receive location deg. 27.65 27.65 30.65 Effective (Refracted) Elevation deg. 36.03 36.03 36.24 Effective G/T at the carrier frequency (Clear-Sky) dB/K 34.29 34.29 12.06 Downlink aspect correction dB 1.29 1.29 1.01 CARRIER INFORMATION Carrier uplink centre frequency MHz 14295.00 14295.00 14295.00 Carrier downlink centre frequency MHz 11995.00 11995.00 11995.00 Number of carriers 1.00 1.00 1.00 Modulation setting name (clear sky) OQPSK_1/2_TURBO_1.3_ OQPSK_1/2_TURBO_1. QPSK 5/6_S2|OFF|N_1.20 Information rate (clear sky) Mbps 0.51 1.02 74.46 Symbol rate Msps 0.51 1.02 45.00 Aggregate code rate (clear sky) 0.50 0.50 0.83 Noise Bandwidth MHz 2.05 2.05 45.00 Spreading Factor 4.00 2.00 1.00 Allocated bandwidth MHz 2.66 2.66 54.00 Power Equivalent Bandwidth MHz 0.09 0.19 70.00 ACM analysis (constant SR) Spectral efficiency in clear sky b/sym 1.00 1.00 1.65 Clear sky throughput Mbps 0.51 1.02 74.46 Clear sky achievable modulation setting OQPSK_1/2_TURBO_1.3_ OQPSK_1/2_TURBO_1. QPSK 5/6_S2|OFF|N_1.20 Under fade: Spectral efficiency at required availability b/sym 1.00 1.00 0.99 Under fade: Throughput when meeting the required availability Mbps 0.51 1.02 44.50 Under fade : Mod Cod meeting the required availability OQPSK_1/2_TURBO_1.3_ OQPSK_1/2_TURBO_1. QPSK 1/2_S2|OFF|N_1.20 LINK BUDGET Uplink Calculations Carrier Input Backoff in clear sky dB -33.30 -30.26 -4.62 C/NUP,Thermal: Uplink Thermal Noise ratio (clear sky) dB 3.47 6.51 18.72 C/IUP, NO ASI : Uplink Thermal Noise and interference ratio prior to ASI (clear sky) dB 3.46 6.49 18.41 C/(N+I)UP Uplink Thermal Noise and interference ratio (clear sky) dB 2.16 5.19 17.19 Total propagation loss considering uplink rain fade dB 1.92 1.92 4.50 Resulting uplink path availability % yr 99.0166 99.0166 99.8924 Downlink Calculations Carrier Downlink EIRP towards Receive E/S dBW 20.66 23.70 49.61 Carrier Downlink EIRP at beam peak dBW 21.94 24.98 50.62 Carrier Output Backoff (clear sky) dB -32.30 -29.26 -3.62 C/IDN, NO ASI : Downlink Thermal Noise and interference ratio prior to ASI (clear sky) dB 7.90 10.82 7.76 C/NDN,Thermal: Downlink Thermal Noise ratio (clear sky) dB 14.67 17.71 7.98 C/(N+I)DN Downlink Thermal Noise and interference ratio (clear sky) dB 7.51 10.44 6.88 Total propagation loss considering downlink rain fade dB 7.01 7.03 2.24 Resulting downlink path availability % yr 99.98 99.98 99.73 NOISE CONTRIBUTION ANALYSIS Limiting factor Uplink Thermal Noise Uplink Thermal Noise Downlink Thermal Noise E/S HPA Intermodulation dB 33.00 33.00 33.00 Uplink Thermal Noise dB 3.47 6.51 18.72 Uplink Co-channel Interference dB 33.00 33.00 33.00 Uplink Adjacent Satellite Interference dB 8.04 11.08 23.29 Transponder Intermodulation dB 9.08 12.12 24.34 Adjacent Channel Interference dB 27.00 27.00 27.00 Downlink Thermal Noise dB 14.67 17.71 7.98 Downlink Co-channel Interference dB 26.00 26.00 26.00 Downlink Adjacent Satellite Interference dB 18.16 21.20 14.26 Thermal noise delta (Up - Dn) dB 11.20 11.20 10.74 Upper bound to C/(N+I) dB 3.15 6.19 7.63 DISCLAIMER: The information provided herein is for informational purposes only and does not represent a performance obligation or liability on SES or any of its affiliates. NAV-D21_NAH-D21 (Multi-Carri+01 Page 2 of 3

SES LINK BUDGET ANALYSIS Total C/(N+I) clear sky dB 1.05 4.06 6.50 Total Eb/No dB 7.07 7.07 4.31 Total C/(N+I), excluding ASI, clear sky dB 2.12 5.12 7.40 Link margin in clear sky (For ACM carriers, residual margin in CS) dB 1.77 1.77 0.15 POWER DENSITY REVIEW Carrier power density at antenna flange (clear sky) dBW/Hz -53.28 -50.23 -66.07 Uplink EIRP density dBW/Hz -24.99 -21.95 -8.86 Skew angle at transmit location deg. 30.65 30.65 27.65 Uplink off-axis EIRP density at 2 deg. dBW/Hz -36.78 -33.74 -44.60 Downlink EIRP density at beam peak dBW/Hz -41.17 -38.13 -25.91 HPA Sizing Total number of carriers through HPA 1.00 1.00 1.00 Total EIRP required from E/S dBW 38.01 41.05 67.67 UPC Range dB 0.00 0.00 0.00 HPA type/mode SSPA | Multi Carrier SSPA | Multi Carrier Not Defined | Multi Carrier Required backoff dB -1.00 -1.00 -4.00 Required HPA capability W 12.13 24.43 31.34 Recommended HPA size W 16.00 25.00 35.00 The information provided herein is for informational purposes only and does not represent a performance obligation or liability on SES or any of its affiliates. © 2019 SES, All rights reserved. DISCLAIMER: The information provided herein is for informational purposes only and does not represent a performance obligation or liability on SES or any of its affiliates. NAV-D21_NAH-D21 (Multi-Carri+01 Page 3 of 3

\ 3@ Satellite Coverage Beams Ku—band i SES Proprietary and Confidential \

sEs* Ku—band: USA, East coast (NA) G/T Contours Shown o Min. SFD Max. SFD [dB/K] [dBW/m?] [dBWim?] 6.4 Beam peak 6 ~102 47 5 ~101 —76 4 —100 48 3 +99 T4 2 —98 43 1 #7 42 0 —96 «71 1 —95 ~70 Notes The adjacent plot shows the predicted performance of a satellite transponder. The coverage is preliminary and performance changes should be expected.. The value in bold represents the nominal edge of coverage. For operation beyond . this contour, co—channel interference —2 > o+ — levels should be assessed on a case by case basis. Elevation Angles are shown at 0 and 5 degrees. SES Proprietary and Confidential | SES—14 Preliminary Technical User Guide (0.2P) November 2017 40

sEs* Ku—band: USA, East coast (NA) EIRP Contours Shown EIRP [dBW] 53.4 Beam peak Notes. The adjacent plot shows the predicted performance of a satellite transponder. The coverage is preliminary and performance changes should be expected. The value in bold represents the nominal edge of coverage. For operation beyond this contour, co—channel interference levels should be assessed on a case by case basis. Elevation Angles are shown at 0 and 5 degrees. SES Proprietary and Confidential | SES—14 Preliminary Technical User Guide (0.2P) November 2017 41


Document Created: 2019-07-10 19:54:40
Document Modified: 2019-07-10 19:54:40
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