Attachment STA Narrative

This document pretains to SES-STA-20170109-00019 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2017010900019_1163316

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


In the Matter of Application by                   )
                                                  )
SES AMERICOM, INC.                                )            SES-STA-________-_____
                                                  )            Call Sign _____
For Special Temporary Authority to                )
Perform In-Orbit Testing for SES-10 at 68.5° W.L. )


                  REQUEST FOR SPECIAL TEMPORARY AUTHORITY

               By this application, SES Americom, Inc. (“SES Americom” or “SES”)

respectfully requests special temporary authority (“STA”) for a period of 30 days, beginning 11

days following launch of SES-10, to permit SES to perform in-orbit testing of the SES-10

satellite at 68.5° W.L. using its new antenna in Woodbine, MD. The satellite is currently
                                                                                      1
scheduled to launch mid-February 2017 and will ultimately operate at 66.9° W.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 station with SES-10 at 66.9° W.L.

               SES Americom’s affiliate, New Skies Satellites B.V. (“NSS”), received authority
                                                                                          2
to provide service into the United States using SES-10 at 67° W.L. on June 23, 2016. NSS has


1
  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 S2950), filed Jan. 8, 2017.
2
  Id. SES Americom incorporates by reference the technical information submitted in the SES-
10 Petition.


requested that SES Americom assist with testing the satellite at 68.5°W.L. SES Americom,

therefore, requests STA to use its earth station to test the SES-10 communications payloads

using the following frequencies:

                             Uplink                13.75-14.0 GHz
                             Uplink                14.0-14.5 GHz
                             Uplink                17.3-17.55 GHz
                             Downlink              10.95-11.2 GHz
                             Downlink              11.45-11.7 GHz
                             Downlink              11.7-12.2 GHz


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

public interest. The requested authority to test SES-10 will ensure it is capable of providing

valuable services once it begins full operation.

                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. SES has commenced

coordinating the proposed IOT operations in the C- and Ku-band satellites positioned near 68.5°

W.L., including Nimiq 5 (72.7° W.L.), Arsat 1 (71.8° W.L.), Star One C2 (70° W.L.), Star One

C4 (70° W.L.), Star One C1 (65° W.L.), Eutelsat 65 West A (65.2° W.L.), and Telstar 14R (63°

W.L.). The maximum EIRP density identified in Attachment 1 will also not be exceeded, except
                                                                                       3
in the case of certain tests involving high-powered continuous wave (“CW”) carriers. The drift



3
    47 C.F.R. § 25.275(e).

                                                                                                    2


of the spacecraft will be coordinated with other satellite operators consistent with industry
            4
practice.

                As demonstrated in the assessment provided in Attachment 2, operations in 13.75-

14.0 GHz will not cause harmful interference to U.S. Navy radar stations of NASA TDRSS

stations.

                Waiver Requests. SES requests limited waivers of the Commission’s

requirements in connection with the instant STA request. Grant of these waivers is consistent

with Commission policy:

                        The Commission may waive a rule for good cause shown.
                        Waiver is appropriate if special circumstances warrant a
                        deviation from the general rule and such deviation would
                        better serve the public interest than would strict adherence
                        to the general rule. Generally, the Commission may grant a
                        waiver of its rules in a particular case if the relief requested
                        would not undermine the policy objective of the rule in
                        question and would otherwise serve the public interest.5

                Section 2.106 and Footnote US271. The SES-10 Grant included a waiver of

Section 2.106 and footnote US271 permitting NSS to provide service into the United States at

67° W.L. using the 17.3-17.55 GHz band, which is allocated for the fixed-satellite service but
                                                                         6
limited to use by broadcasting-satellite service (“BSS”) feeder links. The only other BSS

satellite within the coordination arc is Nimiq 5, which is more than four degrees away at 72.7°

W.L. A similar waiver is justified to support in-orbit testing. As described in the SES-10


4
 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.
5
    PanAmSat Licensee Corp., 17 FCC Rcd 10483, 10492 (Sat. Div. 2002) (footnotes omitted).
6
    See SES Petition.

                                                                                                  3


Petition, BSS feeder links are similar to other FSS operations using large earth station antennas

that can share on a roughly two degree spacing basis. Furthermore, operations in the 17.3-17.55

GHz band will be on an unprotected, non-interference basis. Thus, granting a waiver will not

undermine Commission policy because BSS operations will be fully protected.

                Section 2.106 Footnote NG52. SES Americom also seeks a waiver of footnote

NG52 to permit the reception of U.S. domestic services in the 10.95-11.2 GHz and 11.45-

11.7 GHz bands on an unprotected, non-interference basis for purposes of testing the SES-10

payload. The Commission has granted a waiver for SES-10 to provide domestic service in these

bands, and SES Americom needs to ensure the payload is operating properly. Footnote NG52

was intended to preserve access to the 10.7-11.7 GHZ spectrum for terrestrial fixed service
                                                                                 7
(“FS”) stations by limiting FSS use of the band to international operations only. SES-10 will
                                                                          8
meet the power flux density limits on the ground to protect FS operations and the requested tests

will be for a limited duration of time. Therefore, grant of the requested waiver will not

undermine the purpose of the rule.




7
 See 47 C.F.R § 2.106, Footnote NG52. This policy was previously codified in footnote
NG104.
8
    See SES Petition.

                                                                                                    4


               For the foregoing reasons, SES Americom respectfully requests special temporary

authority for its earth station to communicate with SES-10 for a period of up to 30 days to test

the communications payload at 68.5° W.L. 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, N.W., 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 9, 2017




                                                                                                   5


                                      ATTACHMENT 1



Call Sign: New earth station (WBK11)

Site Details

Contact Information:                            Address:
Mark Rathert                                    2323 Grimville Rd
410-970-7501                                    Mt. Airy, MD
                                                21771
Geographic Coordinates:
Latitude: 39° 22’ 38.8" N                       Longitude: 77° 04’ 52.97" W

Site Elevation:
194.0 meters

Antenna Details
Antenna ID:                          WBK11
Manufacture/Model:                   GD Satcom/Vertex
Antenna Size:                        9m
Antenna Gain Transmit:               60.1 dBi at 14.125 GHz
                                     61.96 dBi at 17.5 GHz
Antenna Gain Receive:                58.5 dBi at 11.725 GHz
Height Above Ground Level:           9.7 meters
Height Above Sea Level:              203.7 meters
Total Input Power at the Flange:     3000 watts
Total EIRP for all Carriers:         94.87 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     1M24G7W           71.0           46.1
                              and Vertical
13750-14000       T           Horizontal     54M0G7W           84.99          43.69
                              and Vertical
14000-14500       T           Horizontal     100KG7W           60.08          46.1
                              and Vertical
14000-14500       T           Horizontal     54M0G7W           87.09          45.79
                              and Vertical
14000-14500       T           Horizontal     N0N               46.1           46.1
                              and Vertical


17300-17550   T   Horizontal     100KG7W   63.93   49.96
                  and Vertical
17300-17550   T   Horizontal     36M0G7W   89.5    49.96
                  and Vertical
17300-17550   T   Horizontal     N0N       71      71
                  and Vertical
10950-11200   R   Horizontal     100KG7W
                  and Vertical
10950-11200   R   Horizontal     54M0G7W
                  and Vertical
11450-11700   R   Horizontal     100KG7W
                  and Vertical
11450-11700   R   Horizontal     54M0G7W
                  and Vertical
11700-12200   R   Horizontal     100KG7W
                  and Vertical
11700-12200   R   Horizontal     54M0G7W
                  and Vertical




                                                           2


                               Attachment 2
Compliance with FCC Report & Order (FCC 96-377) for the 13.75-14.0 GHz Band
       Analysis and Calculations for 9 Meter Antenna at Woodbine, MD


                                           Exhibit For
                                      SES Americom, LLC
                                      Woodbine, Maryland
                             Vertex Corporation 9 Meter Earth Station

     Compliance with FCC Report & Order (FCC96-377) 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 Woodbine, Maryland 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

     •   Coordinates (NAD83):                     39° 22’ 38.8” N, 77° 04’ 52.9” W

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


     •   Frequency Band:                           13.75-14.0 GHz for uplink

     •   Polarizations:                            Linear

     •   Emissions:                                N0N, 100KG7W, 1M00G7W, 36M0G7W and 54M0G7W


     •   Modulation:                               Digital

     •   Maximum Aggregate Uplink EIRP:           46.1 dBW for the N0N Carrier
                                                  60.0 dBW for the 100 kHz Carriers
                                                  70.0 dBW for the 1 MHz Carriers
                                                  85.0 dBW for the 36 MHz Carriers
                                                  85.0 dBW for the 54 MHz Carriers
     •   Transmit Antenna Characteristics
            Antenna Size:                          9.0 meters in Diameter
            Antenna Type/Model:                    Vertex Corporation
            Gain:                                  60.1 dBi

     •   RF power into Antenna Flange:             No Modulation (N0N)
                                                   -14.0 dBW or -14.0 dBW/4 kHz (Maximum)


     •   RF power into Antenna Flange         100 kHz
          (Continued)                         -0.1 dBW
                                               or -14.0 dBW/4 kHz

                                               1 MHz
                                               9.9 dBW
                                               or -14.0 dBW/4 kHz (Maximum)

                                               36 MHz
                                               24.9 dBW
                                               or –14.6 dBW/4 kHz (Maximum)

                                               54 MHz
                                               24.9 dBW
                                               or –16.4 dBW/4 kHz (Maximum)

     •   Minimum Elevation Angle:
          Woodbine, Md                          43.6° @ 166.6° Az. (SES 10) at 68.5° W


     •   Side Lobe Antenna Gain:                32 - 25*log(θ)


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/m2/4 kHz.


The closest distance to the shoreline from the Woodbine earth station is approximately 65.9 km
Southeast toward the Chesapeake Bay. The calculation of the power spectral density at this
distance is given by:
                                          N0N         100 kHz     1.0 MHz       36.0 MHz   54 MHz

       1.   Clear Sky EIRP (dBW):          46.1        60.0         70.0          85.0     85.0
       2.   Carrier Bandwidth:            CW Signal     100 kHz      1 MHz        36 MHz   54 MHz
       3.   PD at antenna Input:          -14.0        -14.0         -14.0        -14.6    -16.4
            (dBW/4 kHz)
       4.   Transmit Antenna Gain:                          60.1 dBi
       5.   Antenna Gain Horizon:                       FCC Reference Pattern
       6.   Antenna Elevation Angle:                        43.6°

The proposed earth station will radiate interference toward the Chesapeake Bay according to its
off-axis side-lobe performance. A conservative analysis, using FCC standard reference pattern,
results in off-axis antenna gains of -10.0 dBi toward the Chesapeake Bay.

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

N0N Carriers (CW Carrier)
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off-Axis Gain (dBi) – Spread Loss
(dBw-m2).

       = -14.0 dBw/4 kHz + (-10.0) dBi – 10*log[4Π*(65900m)2]
       = -131.4 dBW/m2/4 kHz + Additional Path Losses (~63.0 dB)
       = -194.4 dBW/m2/4 kHz


100 kHz Carriers
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off-Axis Gain (dBi) – Spread Loss
(dBw-m2).

       = -14.0 dBw/4 kHz + (-10.0) dBi – 10*log[4Π*(65900m)2]
       = -131.4 dBW/m2/4 kHz + Additional Path Losses (~63.0 dB)
       = -194.4 dBW/m2/4 kHz


1 MHz Carriers
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off-Axis Gain (dBi) – Spread Loss
(dBw-m2).

       = -14.0 dBw/4 kHz + (-10.0) dBi – 10*log[4Π*(65900m)2]
       = -131.4 dBW/m2/4 kHz + Additional Path Losses (~63.0 dB)
       = -194.4 dBW/m2/4 kHz


36 MHz Carriers
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off-Axis Gain (dBi) – Spread Loss
(dBw-m2).
      = -14.6 dBw/4 kHz + (-10.0) dBi – 10*log[4Π*(65900m)2]
      = -131.9 dBW/m2/4 kHz + Additional Path Losses (~63.0 dB)
      = -194.9 dBW/m2/4 kHz

54 MHz Carriers
PFD = Antenna Feed Power density (dBW/4 kHz) + Antenna Off-Axis Gain (dBi) – Spread Loss
(dBw-m2).
      = -16.4 dBw/4 kHz + (-10.0) dBi – 10*log[4Π*(65900m)2]
      = -133.8 dBW/m2/4 kHz + Additional Path Losses (~63.0 dB)
      = -196.8 dBW/m2/4 kHz

Our calculations identified additional path losses of approximately 63.0 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
–194.4 dBW/m2/4 kHz for the CW, 100 kHz and 1 MHz carriers and -194.9 dBW/m2/4 kHz for
the 36 MHz carriers and -196.8 dBW/m2/4 kHz for the 54 MHz. All carriers are a minimum of
27.4 dB below the –167 dBW/ m2/4 kHz interference criteria of R&O 96-377. Therefore, there
should be no interference to the US Navy RADAR from the Woodbine 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 Woodbine, Maryland 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 Woodbine, Maryland.

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 46.1 dBW and the equivalent
EIRP per 6 MHz segment will remain at 46.1 dBW/6 MHz. The total EIRP for the 100 kHz,
carriers is 60.0 dBW. The equivalent EIRP per 6 MHz segment will remain at 60.0 dBW/6 MHz.
The total EIRP for the 1 MHz, carriers is 70.0 dBW. The equivalent EIRP per 6 MHz segment
will remain at 70.0 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 85.0 dBW (36 MHz), and 85.0 dBW (54 MHz) equate to an EIRP
per 6 MHz of 79.0 dBW/6 MHz and 76.0 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 Woodbine 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 exception of the 36 MHz and 54 MHz emissions.



Document Created: 2017-01-09 14:09:50
Document Modified: 2017-01-09 14:09:50

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