Attachment SESSTA2017011000024.

SESSTA2017011000024.

DECISION submitted by FCC

GRANT

0000-00-00

This document pretains to SES-STA-20170110-00024 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2017011000024_1206402

                                     E110104    SES—STA—20170110—00024      1B2017000063
                                     SES Americom, Inc.




                                                                                                                      Approved by OMB
                                                                                                                             3060—0678

                            APPLICATION FOR EARTH STATION SPECIAL TEMPORARY AUTHORITY



APPLICANT INFORMATIONEnter a description of this application to identify it on the main menu:
Request for STA to Provide TT&C for SES—10 during In—Orbit Testing at 68.5 W.L. and drift to 66.9 W.L. Using E110104
 1. Applicant

           Name:        SES Americom, Inc.                 Phone Number:                       202—478—7143

           DBA Name:                                       Fax Number:                         202—478—7111

           Street:      1129 20th Street NW                E—Mail:                             petra.vorwig@ses.com
                        Suite 1000
           City:        Washington                         State:                                 DC
           Country:     USA                                Zipcode:                            20036       +
           Attention:   Ms Petra A Vorwig




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Applicant: SES Americom, Inc.
Call Sign: E110104
File No.:  SES—STA—20170110—00024


SES Americom, Inc. ("SES Americom" or "SES") is granted special temporary authority, for 30
days, beginning April 13, 2017 to operate its Bristow, VA fixed earth station to provide TT&C
for SES—10 at its in—orbit testing location at 68.5° W.L. and during drift to the 66.9 ° W.L. orbital
location in the 13750 — 14500 MHz (Earth—to—space) and 10950 — 11200 MHz and 11450 —
12200 MHz (space—to—Earth) frequency bands under the following conditions:

1. The maximum EIRP shall not exceed 85 dBW per NTIA manual US 356.

2. All operators of satellites will be provided with an emergency phone number where the
licensee can be reached in the event that harmful interference occurs, Currently the 24x7 contact
information for the SES—10 mission is as follows: 24/7 point of contact for the proposed SES—10
operations is the SES Payload Management Operations Center (PMOC) in Woodbine, MD, 1
800 772 2363 or 1 410 970 7570; e—mail: PMOC@ses.com.

3. Operations, shall not cause harmful interference to or claim protection from other lawfully
operating stations and it shall cease transmission(s) immediately upon notice of such
interference.

4. In the event of any harmful interference under this grant of STA, SES Americom must cease
operations immediately upon notification of such interference, and must inform the Commission,
in writing, immediately of such an event.

5. Grant of this authorization is without prejudice to any determination that the Commission may
make regarding pending or future SES Americom applications.

6. Any action taken or expense incurred as a result of operations pursuant to this STA is solely ‘at
SES Americom‘s risk.

7. Operations in the 13.75—14.00 GHz band may only exceed 85 dBW/carrier if an emergency
situation exists and the applicant must notify FCC OperationCenter@fee.gov of the situation
with a copy to paul.blais@fee.gov.

This action is issued pursuant to Section 0.261 of the Commission‘s rules on delegated authority,
47 C.F.R. §0.261, and is effective immediately.




                                  GRANTED                          Te      tes
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                                                                            To: gfi S\j
                                International Bureau
                                                       Approved:_//>    /f        M
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2. Contact


             Name:         Karis Hastings                      Phone Number:                          202—599—0975
             Company:      SatCom Law LLC                      Fax Number:
             Street:       1317 F St, NW                       E—Mail:                                karis@satcomlaw.com
                           Suite 400
             City:         Washington                          State:                                 DC
             Country:      USA                                 Zipcode:                               20004       —
             Attention:                                        Relationship:                          Legal Counsel


(If your application is related to an application filed with the Commission, enter either the file number or the IB Submission ID of the related
application. Please enter only one.)
 3. Reference File Number or Submission ID
 4a. Is a fee submitted with this application?
@ IfYes, complete and attach FCC Form 159.         If No, indicate reason for fee exemption (see 47 C.F.R.Section 1.1114).
C Governmental Entity        C Noncommercial educational licensee
Cp Other(please explain):

4b. Fee Classification    CGX — Fixed Satellite Transmit/Receive Earth Station

5. Type Request


3   Use Prior to Grant                            C   Change
                                                          8 Station Location                          @   Other


6. Requested Use Prior Date


7. CityBristow                                                            8. Latitude
                                                                          (dd mm ss.s h)    38   47    0.6    N


9. State   VA                                                              10. Longitude
                                                                           (dd mm ss.s h)    77   34   254     W
11. Please supply any need attachments.
Attachment 1: STA Narrative                      Attachment 2:                                      Attachment 3:


12. Description.   (If the complete description does not appearin this box, please go to the end of the form to view it in its entirety.)
     SES Americom,       Inc.    requests Special Temporary Authority for 30 days to provide TT&C for
     SES—10 at its in—orbit testing location at 68.5 W.L.                              and during drift to its final
     location at 66.9 W.L. using its E110104 antenna.




13. By checking Yes, the undersigned certifies that neither applicant nor any other party to the application is          @ Yes          «3 No
subject to a denial of Federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti—Drug Act
of 1988, 21 U.S.C. Section 862, because of a conviction for possession or distribution of a controlled substance.
See 47 CFR 1.2002(b) for the meaning of "party to the application" for these purposes.


14. Name of Person Signing                                                 15. Title of Person Signing
  Petra A. Vorwig                                                             Senior Legal & Regulatory Counsel
           WILLFUL FALSE STATEMENTS MADE ON THIS FORM ARE PUNISHABLE BY FINE AND / OR IMPRISONMENT
                  (U.S. Code, Title 18, Section 1001), AND/OR REVOCATION OF ANY STATION AUTHORIZATION
                   (U.S. Code, Title 47, Section 312(a)(1)), AND/OR FORFEITURE (U.S. Code, Title 47, Section 503).


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1, 1995, 44 U.S.C. SECTION 3507.


                                   Before the
                      FEDERAL COMMUNICATIONS COMMISSION
                                    Washington, D.C. 20554


In the Matter of Application by                      )
                                                     )
SES AMERICOM, INC.                                   )       SES—STA—           —
                                                     )       Call Signs E110104 &
For Special Temporary Authority to Provide           )
TT&C for SES—10 during IOT at 68.5° W.L.             )
and During Drift to 66.9° W.L.                       )

                 REQUEST FOR SPECIAL TEMPORARY AUTHORITY

               By this application, SES Americom, Inc. ("SES Americom" or "SES")

respectfully requests _earth station special temporary authority ("STA") for a period of 30 days,

beginning 11 days following launch of SES—10, to permit SES to provide Tracking, Telemetry

and Command ("TT&C") services to support in—orbit testing ("IOT") of the SES—10 satellite

using two antennas — one in Manassas, Virginia (E110104) and a new antenna in Somis,

California. The satellite is currently scheduled to launch in mid—February 2017 and will

ultimately operate at 66.9° W.L.l Following the completion of in—orbit testing at 68.5° W.L.,

SES—10 will drift to its final orbital location at 66.9° W.L. SES Americom will separately seek

authority to allow ongoing operation of the earth stations with SES—10 at 66.9° W.L.




‘ See New Skies Satellites B.V. Market Access Application, File No. SAT—PPL—20160117—00005
("SES—10 Petition"), granted on June 23, 2016 ("SES—10 Grant"). The grant was based on SES—
10 operating at 67.0° W.L., but NSS has filed a modification of its authority to operate the
satellite at 66.9° W.L. pursuant to the Commission‘s expedited process set out in Section
25.117(h)(1). New Skies Satellites B.V. Modification, File No. SAT—MPL—20170108—00002,
(Call Sign $2950), filed Jan. 8, 2017.


                SES Americom‘s affiliate, New Skies Satellites B.V. ("NSS"), received authority

to provide service into the United States using SES—10at 67° W.L. on June 23, 2016.2 NSS has

requested that SES Americom assist with testing the satellite and provide TT&C during the tests

at 68.5°W.L. and during the drift to the nominal 67° W .L. orbital location. The earth stations

will operate as described in Attachments 1 and 2.

               The proposed operations will be coordinated with all satellite operators that use

the same frequency bands within six degrees of 68.5° W.L. and those within the drift path. All

operators of potentially affected satellites will be provided with an emergency phone number

where the licensee can be reached in the event harmful interference occurs.

                Grant ofSTA Will Serve the Public Interest. Grant of this STA request is in the

public interest. The requested authority to provide TT&C services while SES—10 is tested at

68.5° W.L. and drifts to its final érbital location will facilitate the safe operation of SES—10.

               No Harmful Interference to Other Spacecraft. All operations with SES—10 while

it is located at 68.5° W.L. will be on a non—harmful interference basis. Furthermore, TT&C

transmissions during drift of SES—10 will be on a non—harmful interference basis. The drift of the

                                                 .                  .       s                 20    3
spacecraft will be coordinated with other satellite operators consistent with industry practice.




*‘ Id. SES Americom incorporates by reference the technical information submitted in the SES—
 10 Petition.

‘ The 24/7 point of contact for the proposed SES—10 operations is the SES Payload Management
Operations Centre (PMOC) in Woodbine, MD, 1 800 772 2363 or 1 410 970 7570; e—mail:
PMOC@ses.com.


                Furthermore, as demonstrated in the analysis provided in Attachments 34 and 4,

operations in 13.75—14.0 GHz from either location will not cause harmful interference to U.S.

Navy radar stations or NASA TDRSS stations.

                For the foregoing reasons, SES Americom respectfully requests special temporary

authority for its earth stations to communicate with SES—10 to provide TT&C for a period of up

to 30 days to test and drift of the satellite, as described herein. Grant of the requested authority

will promote safe operation of the satellite during and after it is tested.

                                                Respectfully submitted,

                                                SES AMERICOM, INC.

                                                By: /s/ Petra Vorwig

Of Counsel                                          Petra Vorwig
Karis A. Hastings                                   Senior Legal & Regulatory Counsel
SatCom Law LLC                                      SES Americom, Inc.
1317 F Street, NW., Suite 400                      1129 20th Street NW, Suite 1000
Washington, D.C. 20004                             Washington, DC 20036
Tel: (202) 599—0975                                Tel: (202) 478—7143

Dated: January 10, 2017




* For its antenna in Manassas, Virginia (call sign E110104), SES is submitting the analysis
previously conducted in support of operations with the NSS 7 spacecraft operating at 20° W.L.
See File No. SES—LIC—20110715—00830 (filed July 15, 2011). This STA application requests
authority to operate with SES—10 at 68.5° W.L., which will result in operations at a higher
elevation angle reducing the potential for interference into terrestrial systems; therefore, the
attached analysis remains valid.


                                           Attachment 1

Call Sign: E110104
Site Details
Contact Information:                               Address:
Gary Cruickshank                                   8000 Gainsford Ct.
703—367—7311                                       Bristow, VA
                                                   20136
Geographic Coordinates:
Latitude: 38° 47‘ 0.6" N                           Longitude: 77° 34° 25.4" W

Site Elevation:
86.0 meters

Antenna Details
Antenna ID:                          NMW—13
Manufacture/Model:                   Viasat 8016A
Antenna Size:                        11.3 meters
Antenna Gain Transmit:               62.8 dBi at 14 GHz
Antenna Gain Receive:                61.7 dBi at 12 GHz
Height Above Ground Level:           13.27 meters
Height Above Sea Level:              99.27 meters
Total Input Power at the Flange:     1859.0 watts
Total EIRP for all Carriers:         95.49 dBW

Operational Details
Frequency         Transmit/   Polarization    Emissions           Max EIRP      Max EIRP
(MHz)             Receive                     Designator          per Carrier   Density per
                                                                  (dBW)         Carrier
                                                                                (dBW/4kHz)
13750—14000       T           Horizontal      500KG7ZW            69.8          48.8
                              and Vertical
13750—14000       T           Horizontal      1MOG7TW             71.0          47
                              and Vertical
13750—14000       T           Horizontal      54MOGTW             80.6          39.3
                              and Vertical
14000—14500       T           Horizontal      100KG7ZW            62.78         48.8
                              and Vertical
13750—14000       T           Horizontal      665KGTW             71.0          48.8
                              and Vertical
13750—14000       T           Horizontal      S4AMOGZW            §4.99         43.69
                              and Vertical
14000—14500       T           Horizontal      100KG7ZW            62.78         48.8
                              and Vertical
14000—14500       T           Horizontal      SAMOG7ZW            89.79         48.49
                              and Vertical


14000—14500   Horizontal     NON         48.8   48.8
              and Vertical
10950—11200   Horizontal     100KG7ZW
              and Vertical
10950—11200   Horizontal     SA4KGTW
              and Vertical
11450—11700   Horizontal     100KG7ZW
              and Vertical
11450—11700   Horizontal     S4AKGTW
              and Vertical
11700—12200   Horizontal     100KG7W
              and Vertical
11700—12200   Horizontal     SA4MOG7TW
              and Vertical


                                          Attachment 2

Call Sign: New earth station

Site Details

Contact Information:                               Address:
David Coyle                                        5990 Solano Verde Dr.
805—386—2712                                       Somis, California
                                                   93066
Geographic Coordinates:
Latitude: 34° 19‘ 31.2" N                          Longitude: 118° 59° 43.6"W

Site Elevation:
308.0 meters

Antenna Details
Antenna ID:                           SMK—5
Manufacture/Model:                    GD Satcom/Vertex
Antenna Size:                         Om
Antenna Gain Transmit:                60.1 dBi at 14.125 GHz
Antenna Gain Receive:                 58.5 dBi at 11.725 GHz
Height Above Ground Level:            9.7 meters
Height Above Sea Level:               317.7 meters
Total Input Power at the Flange:      750 watts
Total EIRP for all Carriers:          88.85 dBW

Operational Details

Frequency         Transmit/    Polarization   Emissions           Max EIRP      Max EIRP
(MHz)             Receive                     Designator          per Carrier   Density per
                                                                  (dBW)         Carrier
                                                                                (dBW/4kHz)
13750—14000       T            Horizontal     2M83G7W             68            39.5
                               and Vertical
13750—14000       T            Horizontal     54MOGTW             80.8          39.5
                               and Vertical
14000—14500       T            Horizontal     100KG7W             60.08         46.1
                               and Vertical
14000—14500       T            Horizontal     54MOG7TW            87.1          45.8
                               and Vertical
14000—14500       T            Horizontal     NON                 46.1          46.1
                               and Vertical
10950—11200       R            Horizontal     100KG7W
                               and Vertical
10950—11200       R            Horizontal     S4KGTW


                  and Vertical
11450—11700   R   Horizontal     100KG7W
                  and Vertical
11450—11700   R   Horizontal     5AKGTW
                  and Vertical
11700—12200   R   Horizontal     100KGTW
                  and Vertical
11700—12200   R   Horizontal     S4MOG7W
                  and Vertical


                               Attachment 3
Compliance with FCC Report & Order (FCC 96—377) for the 13.75—14.0 GHz Band
                   Analysis and Calculations for E110104


                                            Exhibit For
                                        SES Americom, LLC
                                          Bristow, Virginia
                                  ViaSat 11.3 Meter Earth Station

     Compliance with FCC Report & Order (FCCI6—377) for the 13.75 — 14.0 GHz Band
                              Analysis and Calculations

1.       Background

This Exhibit is presented to demonstrate the extent to which the SES Americom, LLC satellite
earth station in Bristow, Virginia is in compliance with FCC REPORT & ORDER 96—377. The
potential interference from the earth station to US Navy shipboard radiolocation operations
(RADAR) and the NASA space research activities in the 13.75 — 14.0 GHz Band is addressed in
this exhibit. The parameters for the earth station are:

                          Table 1. Earth Station Characteristics


     e   Coordinates (NAD83):                     38° 47° 0.6" N. 77° 34° 25.4" W
     e   Satellite Location for Earth Station:     NSS 7 (20.0° w)
     e   Frequency Band:                           13.75—14.0 GHz for uplink
     e   Polarizations:                            Linear


     e   Emissions:                                500KG7ZW, 1MO0G7W, 36M0G7W, and
                                                   77M0GZW

     e   Modulation:                               Digital

     e   Maximum Aggregate Uplink EIRP:            69.8 dBW for the 500 kHz Carriers
                                                   70.99 dBW for the 1 MHz Carriers
                                                   78.77 dBW for the 36 MHz Carriers
                                                   8$2.07 dBW for the 77 MHz Carriers

     e   Transmit Antenna Characteristics
            Antenna Size:                          11.3 meters in Diameter
            Antenna Type/Model:                    ViaSat
            Gain:                                  62.8 dBi

     e   RF power into Antenna Flange:             500 kHz
                                                   7.0 dBW
                                                   or —14.0 dBW/4 kHz (Maximum)


     e   RF power into Antenna Flange           1.0 MHz
              (Continued)                       8.2 dBW or 0.0 dBW/ MHz
                                                or —1 5.8 dBW/4 kHz (Maximum)

                                                36 MHz
                                                 16.0 dBW or 15.5 dBW/ MHz
                                                or —23.5 dBW/4 kHz (Maximum

                                                77 MHz
                                                19.3 dBW or 18.8 dBW/ MHz
                                                or —23.5 dBW/4 kHz (Maximum

     *   Minimum Elevation Angle:
         Bristow.              _                16.4° @ 111.7° Az. (NSS 7) at 20.0° W

     *   Side Lobe Antenna Gain:                32 — 25*log(0)


Because the above uplink spectrum is shared with the Federal Government, coordination in this
band requires resolution data pertaining to potential interference between the earth station and
both Navy Department and NASA systems. Potential interference from the earth station could
impact with the Navy and/or NASA systems in two areas. These areas are noted in FCC Report
and Order 96—377 dated September 1996, and consist of (1) Radiolocation and radio navigation,
(2) Data Relay Satellites.


Summary of Coordination Issues:

1) Potential Impact to Government Radiolocation (Shipboard Radar)
2) Potential Impact to NASA Data Relay Satellite Systems (TDRSS)



2.       Potential Impact to Government Radiolocation (Shipboard Radar)

Radiolocation operations (RADAR) may occur anywhere in the 13.4 — 14 GHz frequency band
aboard ocean going United States Navy ships. The Federal Communication Commission (FCC)
order 96—377 allocates the top 250 MHz of this 600 MHz band to the Fixed Satellite Service
(FSS) on a co—primary basis with the radiolocation operations and provides for an interference
protection level of —167 dBW/m*/4 kHz.


The closest distance to the shoreline from the Bristow earth station is approximately 97.5 km
East toward the Chesapeake Bay. The calculation of the power spectral density at this distance is
given by:
                                       500 kHz       1.0 MHz       36 MHz        77.0 MHz

       1. Clear Sky EIRP:                69.8 dB W       71.0 dBW       78.8 dBW      82.1 dBW
       2. Carrier Bandwidth:             500 kHz          1.0 MHz       36.0 MHz      77.0 MHz
       3. PD at antenna Input:            —14.0             —15.8         —23.5         —23.5
          (dBW/4 kHz)
       4. Transmit Antenna Gain:                                  62.8 dBi
       5. Antenna Gain Horizon:                               FCC Reference Pattern
       6. Antenna Elevation Angles:                                 43.3°

The proposed earth station will radiate interference toward the Bay according to its off—axis side—
lobe performance. A conservative analysis, using FCC standard reference pattern, results in off—
axis antenna gains of 1.3 dBi toward the Chesapeake Bay.

The signal density at the shoreline, through free space is:

500 kHz Carriers
PFD = Azntenna Feed Power density (dBW/4 kHz) + Antenna Off—Axis Gain (dBi) — Spread Loss
(dBw—m*).

          —14.0 dBw/4 kHz + 1.3 dBi— 10*10g[4H*(97500m)2]
         —123.5 dBW/m*/4 kHz + Additional Path Losses (~64.3 dB)
         —187.8 dBW/m*/4 kHz

1 MHz Carriers
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off—Axis Gain (dBi) — Spread Loss
(dBw—m*).

       = 15.8 dBw/4 kHz + 1.3 dBi—10*log[411*(97500m]‘]
         —125.3 dBW/m*/4 kHz + Additional Path Losses (~64.3 dB)
       = —189.6 dBW/m*/4 kHz


36 MHz Carriers
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off—Axis Gain (dBi) — Spread Loss
(dBw—m*).

          —23.5 dBw/4 kHz + 1.3 dBi— 10*10g[4H*(97500m)2]
         —133.0 dBW/m*/4 kHz + Additional Path Losses (~64.3 dB)
       =—197.3 dBW/m*/4 kHz


77 MHz Carriers
PFD = /Entenna Feed Power density (dBW/4 kHz) + Antenna Off—Axis Gain (dBi) — Spread Loss
(dBw—m*).

       = —23.5 dBw/4 kHz + 1.3 dBi— 10*log[4I*(97500m]‘]
            —133.0 dBW/m*/4 kHz + Additional Path Losses (~64.3 dB)
       It




            —197.3 dBW/m*/4 kHz

Our calculations show additional path loss of approximately 64.3 dB including absorption loss
and earth diffraction loss for the actual path profiles from the proposed earth station to the
nearest shoreline.


The worst case calculated PFD including additional path losses to the closest shoreline location
is —187.8 dBW/m*/4 kHz. This is 20.8 dB below the —167 dBW/ m*/4 kHz interference criteria
of R&O 96—377. Therefore, there should be no interference to the US Navy RADAR from the
Bristow earth station due to the distance and the terrain blockage between the site and the shore.




3.     Potential Impact to NASA‘s Data Relay Satellite System (TDRSS)

The geographic location of the SES Americom earth station in Bristow, Virginia is outside the
390 km radius coordination contour surrounding NASA‘s White Sands, New Mexico ground
station complex. Therefore, the TDRSS space—to—earth link will not be impacted by the SES
Americom earth station in Bristow, Virginia.


The TDRSS space—to—space link in the 13.770 to 13.780 GHz band is assumed to be protected if
an earth station produces an EIRP less than 71 dBW/6 MHz in this band. The 11.3 meter earth
station antenna will have an EIRP less than 71 dBW/6 MHz for the 500 kHz carriers in this band.
In addition, the total EIRP for the 1 MHz, 36 MHz, and 77 MHz carriers is 70.99 dBW, 78.99
dBW and 82.07 dBW, respectively. The equivalent EIRP per 6 MHz segment will remain at 69.8
dBW/6 MHz and 70.99 dBW/6 MHz for the 500 kHz and 1 MHz carriers. For the 36 MHz and
77 MHz carriers the calculated dBW/6 MHz are 70.99 dBW/6 MHz for both sets of carriers.
Therefore, there should not be interference to the TDRSS space—to—space link for the 500 kHz or
1 MHz, 36 MHz, or 77 MHz carriers.

At the above power levels, transmit operations from 13750 to 14000 MHz will be permitted.


Further, SES Americom also plans to operate the 1.0 MHz, 36 MHz, and 77 MHz carriers, with
total EIRPs of 72.8 dBW (1 MHz), 88.3 dBW (36 MHz) and 89.8 dBW (77 MHz). These total
EIRPs will equate to an EIRP per 6 MHz level of 72.8 dBW/6 MHz, 80.5 dBW/6 MHz, and 78.7
dBW/6 MHz, respectively. Since these levels are above the 71.0 dBW/6 MHz threshold, and
there will be interference to the TDRSS space—to—space link, SES Americom will avoid
operations between 13770 — 13780 MHz and limit their operations in this spectrum from 13780
to 14000 MHz.

For these higher power levels, transmit operations will not be permitted between 13770 and
13780 MHz. Operations at these levels for the 1 MHz, 36 MHz, and 77 MHz carriers will be
limited to that portion of the spectrum from 13780 to 14000 MHz.



4.   Coordination Issue Result Summary and Conclusions

The results of the analysis and calculations performed in this exhibit indicate that compatible
operation between the earth station at the Bristow facility and the US Navy and NASA systems
space—to—earth link are possible for the 500 kHz, 1 MHz, 36 MHz, and 77 MHz carriers.
Operations in NASA systems space—to—space link (13772.0 to 13778.0 MHz) will also be
permitted, at the lower EIRP levels noted on Page 1 of this report (Table 1).

When SES Americom utilizes higher EIRP levels noted above for the 1 MHz, 36 MHz, and 77
MHz carriers, the results of the analysis and calculations performed in this exhibit indicate that
compatible operation between the earth station at the Bristow facility and the US Navy and
NASA systems space—to—earth link are possible. However, operations in NASA systems space—
to—space link (13770.0 to 13780.0 MHz) will not be permitted. In this instance, operations in the
spectrum will be restricted to frequencies 13780 to 14000 MHz for the 1 MHz, 36 MHz, and 77
MHz carriers.                                            |


                               Attachment 4
Compliance with FCC Report & Order (FCC 96—377) for the 13.75—14.0 GHz Band
         Analysis and Calculations for 9 Meter Antenna at Somis, CA


                                            Exhibit For
                                        SES Americom, LLC
                                South Mountain (Somis), California
                             Vertex Corporation 9 Meter Earth Station

     Compliance with FCC Report & Order (FCCI6—377) for the 13.75 — 14.0 GHz Band
                                     Analysis and Calculations

1.       Background

This Exhibit is presented to demonstrate the extent to which the SES Americom, LLC satellite
earth station in South Mountain (Somis), California is in compliance with FCC REPORT &
ORDER 96—377. The potential interference from the earth station to US Navy shipboard
radiolocation operations (RADAR) and the NASA space research activities in the 13.75 — 14.0
GHz Band is addressed in this exhibit. The parameters for the earth station are:

                          Table 1. Earth Station Characteristics


     e   Coordinates (NAD®83):                    34° 19‘ 31.77" N, 118° 59‘ 43.8" W

     e   Satellite Location for Earth Station:   SES 10 (68.5° W)

     e   Frequency Band:                           13.75—14.0 GHz for uplink

     e   Polarizations:                            Linear


     e   Emissions:                                NON, 100KG7W, 1 MO0G7W, 36M0G7W and 54M0G7W


     e   Modulation:                               No Modulation and Digital

     e Maximum Aggregate Uplink EIRP:             39.5   dBW for the   NON Carrier
                                                  53.5   dBW for the   100 kHz Carriers
                                                  63.5   dBW for the   1 MHz Carriers
                                                  79.0   dBW for the   36 MHz Carriers
                                                  80.8   dBW for the   54 MHz Carriers
     e   Transmit Antenna Characteristics
            Antenna Size:                          9.0 meters in Diameter
            Antenna Type/Model: _                  Vertex Corporation
            Gain:                                  60.1 dBi

     e   RF power into Antenna Flange:            No Modulation (NON)
                                                  —20.6 dBW
                                                   or —20.6 dBW/4 kHz (Maximum)


The closest distance to the shoreline from the South Mountain earth station is approximately
28.77 km Southwest toward the Pacific Ocean. The calculation of the power spectral density at
this distance is given by:
                                          NON         100 kHz         1.0 MHz     36.0 MHz    54 MHz

       1.    Clear Sky EIRP (dBW):         39.5         53.5           63.5          79.0      80.8
       2.    Carrier Bandwidth:           CW Signal     100 kHz         1 MHz        36 MHz    54 MHz
       3.    PD at antenna Input:         —20.6        —20.6           —20.6         —20.6     —20.6
             (dBW/A4 kHz)
       4.    Transmit Antenna Gain:                           60.1 dBi
       5.    Antenna Gain Horizon:                        FCC Reference Pattern
       6.     Antenna Elevation Angle:                        23.7°

The proposed earth station will radiate interference toward the Pacific Ocean according to its off—
axis side—lobe performance. A conservative analysis, using FCC standard reference pattern,
results in off—axis antenna gains of —4.8 dBi toward the Pacific Ocean.

The signal density at the shoreline, through free space is:

NON Carriers (CW Carrier)
PFD = Azntenna Feed Power density (dBW/4 kHz) + Antenna Off—Axis Gain (dBi) — Spread Loss
(dBw—m*).

       = —20.6 dBw/4 kHz + (—4.8) dBi — 10*log[4I*(28770m)‘]
         —125.6 dBW/m*/4 kHz + Additional Path Losses (~41.8 dB)
            —167.4 dBW/m*/4 kHz
100 kHz Carriers
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off—Axis Gain (dBi) — Spread Loss
(dBw—m*).

       = —20.6 dBw/4 kHz + (—4.8) dBi— 10*log{41*(28770m}‘]
         —125.6 dBW/m*/4 kHz + Additional Path Losses (~41.8 dB)
            —167.4 dBW/m*/4 kHz
       II




1 MHz Carriers                                 .
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off—Axis Gain (dBi) — Spread Loss
(dBw—m).

         —20.6 dBw/4 kHz + (—4.8) dBi — 10*log[4I1*(28770m)"]
       It




       =—125.6 dBW/m*/4 kHz + Additional Path Losses (~41.8 dB)
       =—167.4 dBW/m*/4 kHz

                                            (Continued)


36 MHz Carriers
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off—Axis Gain (dBi) — Spread Loss
(dBw—m").

       = —20.6 dBw/4 kHz + (—4.8) dBi—10*log[4I*(28770m]‘]
         —125.6 dBW/m*/4 kHz + Additional Path Losses (~41.8 dB)
       II




            —167.4 dBW/m*/4 kHz
54 MHz Carriers
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off—Axis Gain (dB1i) — Spread Loss
(dBw—m").

            —20.6 dBw/4 kHz + (—4.8) dBi — 10*log[41*(28770m}"]
            —125.6 dBW/m*/4 kHz + Additional Path Losses (~41.8 dB)
       II




       = —167.4 dBW/m*/4 kHz

Our calculations identified additional path losses of approximately 41.8 dB including absorption
loss and earth diffraction loss for the actual path profiles from the earth station to the nearest
shoreline.

The worst case calculated PFD including additional path losses to the closest shoreline location
is —167.4 dBW/m"/4 kHz for the CW Carriers, 100 kHz, 1 MHz, 36 MHz and 54 MHz cartiers.
This is 0.4 dB below the —167 dBW/ m*/4 kHz interference criteria of R&OQO 96—377. Therefore,
there should be no interference to the US Navy RADAR from the South Mountain earth station
due to the distance and the terrain blockage between the site and the shore.



3.     Potential Impact to NASA‘s Data Relay Satellite System (TDRSS)

The geographic location of the SES Americom earth station in South Mountain (Somis),
California is outside the 390 km radius coordination contour surrounding NASA‘s White Sands,
New Mexico ground station complex. Therefore, the TDRSS space—to—earth link will not be
impacted by the SES Americom earth station in South Mountain, California.

The TDRSS space—to—space link in the 13.772 to 13.778 GHz band is assumed to be protected if
an earth station produces an EIRP less than 71 dBW/6 MHz in this band. The 9 meter earth
station antenna will have an EIRP less than 71 dBW/6 MHz for both the CW carrier, 100 kHz
and 1 MHz carriers in this band. The total EIRP for the CW Carrier is 39.5 dBW and the
equivalent EIRP per 6 MHz segment will remain at 39.5 dBW/6 MHz. The total EIRP for the
100 kHz, carriers is 53.5 dBW. The equivalent EIRP per 6 MHz segment will remain at 53.5
dBW/6 MHz. The total EIRP for the 1 MHz, carriers is 63.5 dBW. The equivalent EIRP per 6
MHz segment will remain at 63.5 dBW/6 MHz. Therefore, there should not be interference to the
TDRSS space—to—space link for the CW carriers or the 100 kHz and 1 MHz carriers. For the 36
MHz and 54 MHz carriers, the total EIRP of 79.0 dBW (36 MHz), and 80.8 dBW (54 MHz)


equate to an EIRP per 6 MHz of 73.0 dBW/6 MHz and 74.8 dBW/6 MHz, respectively To avoid
interference to the TDRSS space—to—space link the 36 MHz and 54 MHz carriers will not be used
for the transmit spectrum of 13.772 to 13.778 GHz by this earth station.



4.   Coordination Issue Result Summary and Conclusions


The results of the analysis and calculations performed in this exhibit indicate that compatible
operation between the earth station at the South Mountain (Somis) facility and the US Navy and
NASA systems space—to—earth link are possible for all of the proposed carriers. Operations in
NASA systems space—to—space link (13772.0 to 13778.0 MHZ) will also be permitted for all of
the carriers with the exceptlon of the 36 MHz and 54 MHz emissions.



Document Created: 2017-04-14 17:27:17
Document Modified: 2017-04-14 17:27:17

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