Attachment EngineeringStatement

This document pretains to SAT-MOD-20160805-00079 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2016080500079_1145777

Engineering Statement
1   Introduction
Intelsat License LLC (“Intelsat”) seeks authority in this application to operate the satellite
designated as Intelsat 904 from 45.1° E.L.

The characteristics of the Intelsat 904 spacecraft, as well as its compliance with the various
provisions of Part 25 of the Federal Communication Commission’s (“FCC or “Commission”)
rules, are provided in the remainder of this Engineering Statement, which updates the beam gain
contours. In all other respects, the characteristics of Intelsat 904 are the same as those described
in SAT-MOD-20011221-00140.

2   Spacecraft Overview
Intelsat 904 is a Space Systems Loral FS1300 spacecraft that is capable of operating in the C-
band and Ku-band frequencies listed below.

                                 Direction              Frequency
                                                     5850 – 6425 MHz
                                   Uplink
                                                    14000 – 14500 MHz
                                                     3625 – 4200 MHz
                                 Downlink           10950 – 11200 MHz
                                                    11450 – 11700 MHz




                                             Page 1 of 14


The spacecraft provides the following coverage:

                        Beam          Coverage
                        Sri Lanka     Sri Lanka
                        Europe        Central Europe
                        West Hemi     Africa and Europe
                        East Hemi     India, Thailand, China
                        Northwest     Western Europe
                        Southwest     Southern Africa
                        Middle East Middle East
                        Southeast     Malaysia
                        Northeast     India, Thailand, Sumatra
                        East          Malaysia, India, Thailand, Sumatra
                        Global        Global


2.1 Spacecraft Characteristics
Intelsat 904 is a Space Systems Loral FS-1300 three-axis stabilized type spacecraft that has a
rectangular outer body structure. Intelsat 904 utilizes two deployable solar array wings and a
number of deployable and non-deployable antennas.

The Intelsat 904 spacecraft is composed of the following subsystems:

         Thermal
         Power
         Attitude Control
         Propulsion
         Telemetry, Command and Ranging
         Uplink Power Control
         Communications

These subsystems maintain the correct position and attitude of the spacecraft; ensure that all
internal units are maintained within the required temperature range; and ensure that the
spacecraft can be commanded and controlled with a high level of reliability from launch to the



                                          Page 2 of 14


end of its useful life. The spacecraft design incorporates redundancy in all of the various
subsystems in order to avoid single-point failures.

The structural design of Intelsat 904 provides mechanical support for all subsystems. The
structure supports the communication antennas, solar arrays, and thrusters. It also provides a
stable platform for preserving the alignment of critical elements of the spacecraft.

2.2 Communication Subsystem
Intelsat 904 provides active communication channels at C-band frequencies, each having a
bandwidth of 36 MHz or 72 MHz, and Ku-band frequencies each having a bandwidth of 36
MHz, 72 MHz, or 77 MHz. The Intelsat 904 frequencies, polarization, and channel plan are
provided in the Schedule S.

The coverage contours and performance characteristics of all Intelsat 904 beams except for the
global beams are provided in the Schedule S. The global beams have gain contours that vary by
less than 8 dB across the surface of the Earth, and accordingly the gain at 8 dB below the peak
falls beyond the edge of the Earth. Therefore, pursuant to Section 25.114(c)(4)(vi)(A) of the
FCC’s rules, contours for these beams are not required to be provided and the associated GXT
files have not been included in Schedule S. Exhibits 1 and 2 provide the beam parameters for the
Intelsat 904 uplink and downlink beams, respectively.

2.3 Telemetry, Command and Ranging Subsystem
The telemetry, command and ranging (“TC&R”) subsystem provides the following functions:

   1) Acquisition, processing and transmission of spacecraft telemetry data;

   2) Reception and retransmission of ground station generated ranging signals; and

   3) Reception, processing and distribution of telecommands.

The Intelsat 904 command and telemetry channel frequencies are shown in Exhibit 3. The
coverage patterns of the command and telemetry beams have gain contours that vary by less than
8 dB across the surface of the Earth, and accordingly the gain at 8 dB below the peak falls
beyond the edge of the Earth. Therefore, pursuant to Section 25.114(c)(4)(vi)(A) of the FCC’s
rules, contours for these beams are not required to be provided and the associated GXT files have
not been included in Schedule S. The Intelsat 904 command and telemetry subsystem
performance is summarized in Exhibit 3.

2.4 Uplink Power Control Subsystem
Intelsat 904 utilizes two Ku-band channels for uplink power control (“ULPC”), antenna tracking,
and ranging. The coverage patterns of the ULPC beams have gain contours that vary by less
than 8 dB across the surface of the Earth, and accordingly the gain at 8 dB below the peak falls


                                           Page 3 of 14


beyond the edge of the Earth. Therefore, pursuant to Section 25.114(c)(4)(vi)(A) of the FCC’s
rules, contours for these beams are not required to be provided and the associated GXT files have
not been included in Schedule S. The Intelsat 904 ULPC frequencies and subsystem performance
are summarized in Exhibit 3.

2.5 Satellite Station-Keeping
The spacecraft will be maintained within 0.05° of its nominal longitudinal position in the east-
west direction. Accordingly, it will be in compliance with Section 25.210(j) of the
Commission’s rules.

The attitude of the spacecraft will be maintained with accuracy consistent with the achievement
of the specified communications performance, after taking into account all error sources (i.e.,
attitude perturbations, thermal distortions, misalignments, orbital tolerances and thruster
perturbations, etc.).

3   Services
Intelsat 904 is a general purpose communications satellite and has been designed to support
various services offered within the Intelsat satellite system. Depending upon the needs of the
users, the transponders on Intelsat 904 can accommodate television, radio, voice, and data
communications. Typical communication services include:

    a) Compressed digital video

    b) High speed digital data

    c) Digital single channel per carrier (“SCPC”) data channels

Emission designators and allocated bandwidths for representative communication carriers are
provided in Schedule S.

4   Power Flux Density
The power flux density (“PFD”) limits for space stations operating in the 3650 – 4200 MHz,
10950 – 11200 MHz, and 11450 -11700 MHz bands are specified in Section 25.208 of the
Commission’s rules. The power flux density (“PFD”) limits for space stations operating in the
3625 – 3650 MHz are specified in No. 21.16 of the ITU Radio Regulations.

The maximum PFD levels for the Intelsat 904 transmissions were calculated for the 3625 – 4200
MHz, 10950 – 11200 MHz, and 11450 -11700 MHz bands. The results are provided in Schedule
S and show that the downlink power flux density levels of the Intelsat 904 carriers do not exceed
the limits specified in Section 25.208 of the Commission’s rules or the limits specified in No.
21.16 of the ITU Radio Regulations.


                                           Page 4 of 14


5    Emission Compliance
Section 25.202(e) of the Commission’s rules requires that the carrier frequency of each space
station transmitter be maintained within 0.002% of the reference frequency. Intelsat 904 is
designed to be compliant with the provisions of this rule.

Intelsat will comply with the provisions of Section 25.202(f) of the Commission’s rules with
regard to Intelsat 904 emissions.

6    Orbital Location
Intelsat requests that it be assigned the 45.1° E.L. orbital location for Intelsat 904. The 45.1°
E.L. location satisfies Intelsat 904 requirements for optimizing coverage, elevation angles, and
service availability. Additionally, the location also ensures that the maximum operational,
economic, and public interest benefits will be derived.

7    Coordination with Co-frequency Space Stations
In 2015, the Commission modified the interference analysis requirements and adopted routine
limits on the power density of downlink transmissions.1 The Intelsat 904 transmissions in C-
band will comply with the levels contained in Sections 25.212(c) and (d) and Section
25.140(a)(3)(i) and (ii) of the Commission’s rules, as modified pursuant to the 2015 Part 25
Streamlining Order, unless higher levels are coordinated with affected adjacent satellite operators
within ±6. As of the time of filing this application, these rules are not yet effective. To the
extent necessary, Intelsat seeks waiver of existing Section 25.140(a). The same public interest
rationales for modification of Section 25.140(a) justify a waiver of the rule in this case.2

The impact of the Intelsat 904 Ku-band emissions on hypothetical adjacent satellites located at
43.1° E.L. and 47.1º E.L. was analyzed.3 The interference analysis was conducted for a number
of representative carriers at Ku-band frequencies. It was assumed that there were hypothetical


1
 Comprehensive Review of Licensing and Operating Rules for Satellite Services, Second Report and
Order, 30 FCC Rcd 14713, 14755 (2015) (“2015 Part 25 Streamlining Order”).
2
 Id. at 14754-55. See also Application to Launch and Operate Intelsat 33e, a Replacement Satellite With
New Frequencies, File No. SAT-LOA-20150327-00016, Stamp Grant, ¶ 6 (Feb. 25, 2016) (waiving
Section 25.210(i)(1)’s cross-polarization requirement based on modified Part 25 rules adopted in 2015
Part 25 Streamlining Order).
3
 At the time of submission of this application, there are no satellites located at 43.1E.L. or 47.1E.L.
The use of satellites at other locations in the interference analysis would be inconsistent with a two-degree
orbital separation environment and policy.




                                               Page 5 of 14


satellites having the same operating characteristics as Intelsat 904 at the 43.1° E.L. and
47.1E.L. orbital locations.

For the satellite located at 43.1º E.L., it was assumed that the adjacent satellites were Intelsat
904, located at 45.1º E.L., and a hypothetical satellite having the same operating characteristics
as Intelsat 904 located at 41.1º E.L. For the satellite located at 47.1º E.L., it was assumed that the
adjacent satellites were Intelsat 904, located at 45.1º E.L., and a hypothetical satellite having the
same operating characteristics as Intelsat 904 located at 49.1º E.L. The resulting interference
analyses are included as Exhibits 4 and 5.

Other assumptions made for the interference analysis were as follows:

    a) In the plane of the geostationary satellite orbit, all transmitting and receiving earth station
       antennas have off-axis co-polar gains that are compliant with the limits specified in
       section 25.209(a) of the FCC rules.
    b) All transmitting and receiving earth stations have a cross-polarization isolation value of at
       least 30 dB within their main beam lobe.
    c) At Ku-band frequencies rain attenuation predictions are derived using Recommendation
       ITU-R P.618.
    d) At Ku-band frequencies, increase in noise temperature of the receiving earth station due
       to rain is taken into account.
    e) For the cases where the transponder operates in a multi-carrier mode, the effects due to
       intermodulation interference are taken into account.

All assumptions and the results of the analysis are documented in Exhibits 5 & 6. The Intelsat
904 transmissions will comply with the levels contained in Sections 25.212(c) and (d) and
Section 25.138 of the Commission’s rules, as applicable, unless higher levels are coordinated
with affected adjacent satellite operators within ±6.


8   Orbital Debris Mitigation Plan
Intelsat is proactive in ensuring safe operation and disposal of this and all spacecraft under its
control. The four elements of debris mitigation are addressed below.

8.1 Spacecraft Hardware Design
The spacecraft is designed such that no debris will be released during normal operations. Intelsat
has assessed the probability of collision with meteoroids and other small debris (<1 cm diameter)
and has taken the following steps to limit the effects of such collisions: (1) critical spacecraft
components are located inside the protective body of the spacecraft and properly shielded; and
(2) all spacecraft subsystems have redundant components to ensure no single-point failures. The
spacecraft does not use any subsystems for end-of-life disposal that are not used for normal
operations.

                                            Page 6 of 14


8.2 Minimizing Accidental Explosions
Intelsat has assessed the probability of accidental explosions during and after completion of
mission operations. The spacecraft is designed in a manner to minimize the potential for such
explosions. Propellant tanks and thrusters are isolated using redundant valves and electrical
power systems are shielded in accordance with standard industry practices. At the completion of
the mission and upon disposal of the spacecraft, Intelsat will ensure the removal of all stored
energy on the spacecraft by depleting all propellant tanks, venting all pressurized systems and by
leaving the batteries in a permanent discharge state.

8.3 Safe Flight Profiles
Intelsat has assessed and limited the probability of the space station becoming a source of debris
as a result of collisions with large debris or other operational space stations. Subject to receipt of
FCC approval, Intelsat 904 will first be drifted to 45.0 E.L. and will temporarily be operated co-
located with Intelsat 12 until completion of traffic transition.4 After traffic transition and subject
to receipt of FCC approval, Intelsat 904 will be relocated to 45.1E.L. Once relocated to 45.1°
E.L., Intelsat 904 will not be located at an orbital location that has an overlapping station-
keeping volume with another satellite.

During the relocation of Intelsat 904, Intelsat will take all the necessary steps to coordinate the
move internally to minimize the risk of collision or interference between Intelsat 904 and Intelsat
12. Intelsat is not aware of any other FCC licensed system, or any other system applied for and
under consideration by the FCC, that will have an overlapping station-keeping volume with
Intelsat 904. Intelsat is also not aware of any system with an overlapping station-keeping
volume with Intelsat 904 that is the subject of an ITU filing and that is either in orbit or
progressing towards launch.

8.4 Post Mission Disposal
At the end of the mission, Intelsat intends to dispose of the spacecraft by moving it to an altitude
of at least 150 kilometers above the geostationary arc. Intelsat has reserved 52.8 kilograms of
fuel for this purpose. In its Second Report and Order in IB Docket 02-54, Mitigation of Orbital
Debris,5 the FCC declared that satellites launched prior to March 18, 2002, such as the Intelsat
904 satellite, would be designated as grandfathered satellites not subject to a specific disposal
altitude. Therefore, the planned disposal orbit for Intelsat 904, as revised, complies with the
FCC’s rules.



4
 Request for Special Temporary Authority to Drift Intelsat 904 to, and Operate at, 45.0° E.L. and 45.1°
E.L.; Call Sign: S2408; File No. SAT-STA-20160722-00065 (filed July 22, 2016).
5
    Mitigation of Orbital Debris, Second Report and Order, 19 FCC Rcd 11567 (2004).


                                              Page 7 of 14


The reserved fuel figure was determined by the spacecraft manufacturer and provided for in the
propellant budget. This figure was calculated taking into account the expected mass of the
satellite at the end of life and the required delta-velocity to achieve the desired orbit. The fuel
gauging uncertainty has been taken into account in these calculations.

9   TC&R Control Earth Stations
Intelsat will conduct TC&R operations through one or more of the following earth stations:
Fuchsstadt, Germany; Hartebeeshoek, South Africa; Mingenew, Australia; Kumsan, South
Korea; or Fucino, Italy. Additionally, Intelsat is capable of remotely controlling Intelsat 904
from its facilities in McLean, VA or in Long Beach, CA.


Certification Statement

I hereby certify that I am a technically qualified person and am familiar with Part 25 of the
Commission’s rules. The contents of this engineering statement were prepared by me or under
my direct supervision and to the best of my knowledge are complete and accurate.



              /s/ Alan Yates                                   August 5, 2016

             Alan Yates                                              Date
               Intelsat
      Senior Manager, Spectrum
             Engineering




                                            Page 8 of 14


                                              EXHIBIT 1

     COMMUNICATION SUBSYSTEM UPLINK BEAM PARAMETERS
Beam Name              C-Band Global    C-Band Global             C-Band Hemi              C-Band Hemi    C-Band Spot
Schedule S Beam ID        CGRU              CGLU                     WHLU                     EHLU          NWRU

Frequency Band (MHz)    6300 - 6425       6300 - 6425             5850 - 6300               5850 - 6300   5850 - 6300

Polarization              RHCP              LHCP                      LHCP                    LHCP          RHCP
G/T (dB/K)                 -6.3               -5.6                     -2.6                     1.6           5.4
Minimum SFD--
                           -91.5              -92.0                   -92.4                    -93.4         -92.0
(dBW/m2)
Maximum SFD--
                           -69.5              -70.0                   -70.4                    -71.4         -70.0
(dBW/m2)



Beam Name                C-Band Spot       C-Band Spot               C-Band Spot            C-Band Spot   C-Band Spot
Schedule S Beam ID          SWRU               MERU                    SERU                    NERU         CERU

Frequency Band (MHz)      5850 - 6300       5850 - 6300              5850 - 6300            5850 - 6300   5850 - 6300

Polarization                RHCP               RHCP                    RHCP                    RHCP          RHCP
G/T (dB/K)                    0.9                1.9                     3.3                     3.7          0.2
Minimum SFD--
                             -92.7              -92.8                   -92.8                   -93.2        -92.7
(dBW/m2)
Maximum SFD--
                             -70.7              -70.8                   -70.8                   -71.2        -70.7
(dBW/m2)




                         Beam Name                    Ku-Band Spot             Ku-Band Spot
                         Schedule S Beam ID               S1HU                    S2VU
                         Frequency Band
                                                      14000 - 14500           14000 - 14500
                         (MHz)
                         Polarization                   Horizontal               Vertical
                         G/T (dB/K)                        8.7                      8.7
                         Minimum SFD--
                                                          -92.0                    -92.6
                         (dBW/m2)
                         Maximum SFD--
                                                          -74.0                    -74.6
                         (dBW/m2)




                                                Page 9 of 14


                                               EXHIBIT 2

 COMMUNICATION SUBSYSTEM DOWNLINK BEAM PARAMETERS
Beam Name              C-Band Global     C-Band Global              C-Band Hemi             C-Band Hemi       C-Band Spot
Schedule S Beam ID        CGLD                CGRD                       WHRD                    EHRD           NWLD
Frequency Band
                        4075 - 4200        4075 - 4200                 3625 - 4075          3625 - 4075       3625 - 4075
(MHz)
Polarization              LHCP                RHCP                       RHCP                    RHCP           LHCP
Maximum Beam                                                                                                     41.6
                           35.7                35.3                       41.0                    45.3
Peak EIRP (dBW)
Maximum Beam
Peak EIRP Density          -3.9                -4.3                       -1.6                    2.7            -1.0
(dBW/4kHz)



Beam Name                  C-Band Spot         C-Band Spot               C-Band Spot            C-Band Spot   C-Band Spot
Schedule S Beam ID            SWLD               MELD                       SELD                  NELD           CELD

Frequency Band (MHz)       3625 - 4075         3625 - 4075               3625 - 4075            3625 - 4075   3625 - 4075

Polarization                  LHCP                LHCP                      LHCP                  LHCP           LHCP
Maximum Beam Peak
                                  42.2                43.8                   43.6                  47.7           44.8
EIRP (dBW)
Maximum Beam Peak
EIRP Density                      -0.4                1.2                    1.0                    5.1           2.2
(dBW/4kHz)




                          Beam Name                    Ku-Band Spot              Ku-Band Spot
                          Schedule S Beam ID                 SIVD                    S2HD
                          Frequency Band
                                                      10900 - 11700              10900 - 11700
                          (MHz)
                          Polarization                      Vertical               Horizontal
                          Maximum Beam
                                                             53.1                    53.8
                          Peak EIRP (dBW)
                          Maximum Beam
                          Peak EIRP Density                  13.5                    14.2
                          (dBW/4kHz)




                                               Page 10 of 14


                                     EXHIBIT 3

               TC&R SUBSYSTEM CHARACTERISTICS
                                                   Command         Command
             Beam Name
                                                    Global          Bicone
             Schedule S Beam ID                     CMDG            CMDB
             Frequencies (MHz)                      6173.7          6176.3
             Polarization                           LHCP            LHCP
             Peak Flux Density at Command
                                                     -90                 -90
             Threshold (dBW/m2-Hz)



                                      Telemetry     Telemetry
     Beam Name                                                   ULPC          ULPC
                                       Global        Bicone
     Schedule S Beam ID                TLMG          TLMB         UPKC         UPCV
                                      3947.5 &      3948.0 &    11198.0 &
     Frequencies (MHz)                                                         3950.0
                                       3952.0        3952.5      11452.0
     Polarization                      RHCP          RHCP         RHCP         Vertical
     Maximum Channel EIRP (dBW)             8.0        8.0        11.0           8.0
     Maximum Beam Peak EIRP
                                            -6.0      -6.0        -3.0           0.0
     Density (dBW/4kHz)



Note: RHCP: Right Hand Circular Polarization, LHCP: Left Hand Circular Polarization




                                      Page 11 of 14


                                         EXHIBIT 4
                            Beam Polarizations and GXT File Names


                                                 Schedule S Beam Names
                              Linear Polarization                   Circular Polarization
    Beam
  Designation       Uplink     Uplink Downlink Downlink Uplink             Uplink Downlink Downlink
                   (H-Pol.)   (V-Pol.) (H-Pol.) (V-Pol.) (LHCP)           (RHCP) (LHCP) (RHCP)
                                           C-Band Beams
  Global Beam        ----       ----     ----      ----  CGLU*            CGRU*      CGLD*      CGRD*
   West Hemi         ----       ----     ----      ----  WHLU               ----     WHRD        ----
   East Hemi         ----       ----     ----      ----   EHLU              ----     EHRD        ----
   Northwest         ----       ----     ----      ----    ----           NWRU       NWLD        ----
   Southwest         ----       ----     ----      ----    ----           SWRU       SWLD        ----
  Middle East        ----       ----     ----      ----    ----           MERU       MELD        ----
   Southeast         ----       ----     ----      ----    ----            SERU       SELD       ----
   Northeast         ----       ----     ----      ----    ----           NERU       NELD        ----
      East           ----       ----     ----      ----    ----           CERU       CELD        ----
   Telemetry
                     ----       ----       ----       ----       ----       ----        ----    TLMG*
     Global
Telemetry Bicone     ----       ----       ----       ----       ----       ----        ----    TLMB*
  Command
                     ----       ----       ----       ----    CMDG*         ----        ----     ----
    Global
Command Bicone       ----       ----       ----      ----      CMDB*        ----        ----     ----
 C-band ULPC         ----       ----       ----     UPCV*       ----        ----        ----     ----

                                             Ku-Band Beams
  Sri Lanka         S1HU        ----      S1VD        ----        ----       ----        ----    ----
Central Europe       ----     S2VU          ----     S2HD         ----       ----       ----     ----
Ku-band ULPC         ----       ----        ----      ----        ----       ----       ----    UPKC*
* GXT files are not provided for the indicated beams because their -8 dB gain contours extend
beyond the edge of the Earth.




                                             Page 12 of 14


                          EXHIBIT 5
  HYPOTHETICAL 43.1°E.L. SATELLITE INTERFERENCE ANALYSIS
UPLINK BEAM INFORMATION
Uplink Beam Name                              S1HU / S2VU     S1HU / S2VU             S1HU / S2VU     S1HU / S2VU
Uplink Frequency (MHz)                          14475           14475                      14475        14475
Uplink Beam Polarization                         H/V             H/V                        H/V          H/V
Uplink Beam Peak G/T (dB/K)                       8.7               8.7                     8.7           8.7
Uplink Beam Peak SFD (dBW/m2)                    -92.6           -92.6                     -92.6         -92.6
Uplink Relative Contour Level (dB)               -8.0            -8.0                       -8.0         -8.0
DOWNLINK BEAM INFORMATION
Downlink Beam Name                            S1VD / S2HD     S1VD / S2HD             S1VD / S2HD     S1VD / S2HD
Downlink Frequency (MHz)                        11675           11675                      11675        11675
Downlink Beam Polarization                       V/H             V/H                        V/H          V/H
Downlink Beam Peak EIRP (dBW)                    53.1            53.1                       53.1         53.1
Downlink Relative Contour Level (dB)             -6.0            -6.0                       -6.0         -6.0
ADJACENT SATELLITE 1
Satellite Name                                                             Intelsat 904
Orbital Location                               45.1 E.L.       45.1 E.L.                  45.1 E.L.    45.1 E.L.
Uplink Power Density (dBW/Hz)                    -45.0           -45.0                     -45.0         -45.0
Beam Peak Downlink EIRP Density (dBW/Hz)         -21.5           -21.5                     -21.5         -21.5
ADJACENT SATELLITE 2
Satellite Name                                                        Hypothetical 41.1 E.L.
Orbital Location                               41.1 E.L.       41.1 E.L.                  41.1 E.L.    41.1 E.L.
Uplink Power Density (dBW/Hz)                    -45.0            -45                      -45.0         -45.0
Beam Peak Downlink EIRP Density (dBW/Hz)         -21.5           -21.5                     -21.5         -21.5
CARRIER INFORMATION
Carrier ID                                     36M0G7W         8M25G7W                    1M73G7W      338KG7W
Carrier Modulation                              QPSK            QPSK                       QPSK         QPSK
Information Rate(kbps)                          36860            8448                       1284         273
Code Rate                                     3/4x188/204           3/4                     1/2           1/2
Occupied Bandwidth(kHz)                         26664.7         6111.3                     1283.5        281.4
Allocated Bandwidth(kHz)                        36000           8250.5                      1733         338
Minimum C/N, Rain (dB)                            7.3               7.3                     1.8           1.2
UPLINK EARTH STATION
Earth Station Diameter (meters)                   6.5               4.0                     4.0           2.4
Earth Station Gain (dBi)                         57.4            57.4                       48.7         48.7
DOWNLINK EARTH STATION
Earth Station Diameter (meters)                   4.0               4.0                     4.0           2.4
Earth Station Gain (dBi)                         51.4            51.4                       51.4         47.0
Earth Station G/T (dB/K)                         29.0            29.0                       29.0         25.0
COMPOSITE LINK PERFORMANCE
C/N Thermal Uplink (dB)                          21.3            22.2                       18.0         19.6
Uplink Interference C/I (dB)                      ---               ---                      ---          ---
Uplink Adjacent Satellite C/I (dB)               13.2            14.0                       9.8          11.4
Intermodulation C/IM (dB)                         ----           36.1                       22.3         35.0
Downlink Thermal C/N (dB)                        19.2            19.5                       14.8         12.8
Downlink Interference C/I (dB)                   999.0           28.2                       20.6         25.3
Downlink Adjacent Satellite C/I (dB)             16.7            17.4                       12.7         10.3


Subtotal C/N (dB)                                10.5            11.1                       6.5           6.3
Antenna Mispointing and Other Losses (dB)         0.3               0.3                     0.3           0.3
Total C/N (dB)                                   10.2            10.8                       6.2           6.0
Minimum Required C/N (dB)                         7.3               7.3                     1.8           1.2
CARRIER DENSITY LEVELS
Uplink Power Density (dBW/Hz)                    -57.5           -52.5                     -52.3         -50.7
Downlink EIRP Density At Beam Peak (dBW/Hz)      -26.6           -26.1                     -30.6         -28.6




                                                    Page 13 of 14


                          EXHIBIT 6
  HYPOTHETICAL 47.1°E.L. SATELLITE INTERFERENCE ANALYSIS
UPLINK BEAM INFORMATION
Uplink Beam Name                              S1HU / S2VU     S1HU / S2VU             S1HU / S2VU     S1HU / S2VU
Uplink Frequency (MHz)                          14475           14475                      14475        14475
Uplink Beam Polarization                         H/V             H/V                        H/V          H/V
Uplink Beam Peak G/T (dB/K)                       8.7               8.7                     8.7           8.7
Uplink Beam Peak SFD (dBW/m2)                    -92.6           -92.6                     -92.6         -92.6
Uplink Relative Contour Level (dB)               -8.0            -8.0                       -8.0         -8.0
DOWNLINK BEAM INFORMATION
Downlink Beam Name                            S1VD / S2HD     S1VD / S2HD             S1VD / S2HD     S1VD / S2HD
Downlink Frequency (MHz)                        11675           11675                      11675        11675
Downlink Beam Polarization                       V/H             V/H                        V/H          V/H
Downlink Beam Peak EIRP (dBW)                    53.1            53.1                       53.1         53.1
Downlink Relative Contour Level (dB)             -6.0            -6.0                       -6.0         -6.0
ADJACENT SATELLITE 1
Satellite Name                                                             Intelsat 904
Orbital Location                               45.1 E.L.       45.1 E.L.                  45.1 E.L.    45.1 E.L.
Uplink Power Density (dBW/Hz)                    -45.0           -45.0                     -45.0         -45.0
Beam Peak Downlink EIRP Density (dBW/Hz)         -21.5           -21.5                     -21.5         -21.5
ADJACENT SATELLITE 2
Satellite Name                                                        Hypothetical 49.1 E.L.
Orbital Location                               49.1 E.L.       49.1 E.L.                  49.1 E.L.    49.1 E.L.
Uplink Power Density (dBW/Hz)                    -45.0            -45                      -45.0         -45.0
Beam Peak Downlink EIRP Density (dBW/Hz)         -21.5           -21.5                     -21.5         -21.5
CARRIER INFORMATION
Carrier ID                                     36M0G7W         8M25G7W                    1M73G7W      338KG7W
Carrier Modulation                              QPSK            QPSK                       QPSK         QPSK
Information Rate(kbps)                          36860            8448                       1284         273
Code Rate                                     3/4x188/204           3/4                     1/2           1/2
Occupied Bandwidth(kHz)                         26664.7         6111.3                     1283.5        281.4
Allocated Bandwidth(kHz)                        36000           8250.5                      1733         338
Minimum C/N, Rain (dB)                            7.3               7.3                     1.8           1.2
UPLINK EARTH STATION
Earth Station Diameter (meters)                   6.5               4.0                     4.0           2.4
Earth Station Gain (dBi)                         57.4            57.4                       48.7         48.7
DOWNLINK EARTH STATION
Earth Station Diameter (meters)                   4.0               4.0                     4.0           2.4
Earth Station Gain (dBi)                         51.4            51.4                       51.4         47.0
Earth Station G/T (dB/K)                         29.0            29.0                       29.0         25.0
COMPOSITE LINK PERFORMANCE
C/N Thermal Uplink (dB)                          21.3            22.2                       18.0         19.6
Uplink Interference C/I (dB)                      ---               ---                      ---          ---
Uplink Adjacent Satellite C/I (dB)               13.2            14.0                       9.8          11.4
Intermodulation C/IM (dB)                         ----           36.1                       22.3         35.0
Downlink Thermal C/N (dB)                        19.2            19.5                       14.8         12.8
Downlink Interference C/I (dB)                   999.0           28.2                       20.6         25.3
Downlink Adjacent Satellite C/I (dB)             16.7            17.4                       12.7         10.3


Subtotal C/N (dB)                                10.5            11.1                       6.5           6.3
Antenna Mispointing and Other Losses (dB)         0.3               0.3                     0.3           0.3
Total C/N (dB)                                   10.2            10.8                       6.2           6.0
Minimum Required C/N (dB)                         7.3               7.3                     1.8           1.2
CARRIER DENSITY LEVELS
Uplink Power Density (dBW/Hz)                    -57.5           -52.5                     -52.3         -50.7
Downlink EIRP Density At Beam Peak (dBW/Hz)      -26.6           -26.1                     -30.6         -28.6




                                                    Page 14 of 14



Document Created: 2016-08-05 15:34:45
Document Modified: 2016-08-05 15:34:45

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