Attachment STA Narrative

This document pretains to SES-STA-20170302-00231 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2017030200231_1191881

                                    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 IOT       )
And Provide TT&C for SES-10 at 68.5° W.L.            )
and During Drift to 66.9º 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 use a new antenna in Somis, California to

communicate with the SES-10 satellite. Specifically, SES seeks STA to perform in-orbit testing

(“IOT”) activities at 68.5° W.L. and to provide associated Tracking, Telemetry and Command

(“TT&C”) services while SES-10 is at 68.5° W.L. and during the drift to the satellite’s regular

orbital position once IOT is complete. The satellite is currently scheduled to launch mid-March

2017, and SES seeks action on the STA consistent with that schedule. Grant of the requested

authority will serve the public interest by facilitating the testing of SES-10 before it commences

regular operations.

               SES Americom’s affiliate, New Skies Satellites B.V. (“NSS”), has been
                                                                                1
authorized to use the SES-10 satellite to provide service into the United States. SES-10 will be

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 seeking 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.


located at 68.5° W.L. +/- 0.1 degrees during IOT. The relaxed stationkeeping tolerance will

minimize interruptions to the payload testing operations due to stationkeeping maneuvers, which

would delay the satellite’s on-station start of operations. The proposed stationkeeping volume

will not overlap with any other satellite at 68.5° 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 new antenna with SES-10 at

66.9° W.L.

                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 station will operate in the below bands and as further described in

Attachment 1.

                          IOT and TT&C            13.75-14.0 GHz
                          Uplink (low-power
                          tests only)
                          IOT and TT&C            14.0-14.5 GHz
                          Uplink
                          IOT Uplink              17.3-17.55 GHz
                          IOT and TT&C            10.95-11.2 GHz
                          Downlink
                          IOT and TT&C            11.45-11.7 GHz
                          Downlink
                          IOT and TT&C            11.7-12.2 GHz
                          Downlink


                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.




                                                                                                    2


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

public interest. Permitting testing of SES-10 will ensure the satellite is capable of providing

valuable services once it begins full operation, and the requested authority to provide TT&C

services while SES-10 is tested at 68.5° W.L. and drifts to its final orbital 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. SES has commenced

coordinating the proposed IOT operations with the 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 drift of the spacecraft to 66.9° W.L. also will be coordinated with other satellite
                                               2
operators consistent with industry practice.

                SES will perform low-power tests in the 13.75-14.0 GHz band, and operations

will comply with the power limits described in the assessment provided in Attachment 2. As

demonstrated in the attachment, operations in the 13.75-14.0 GHz band will not cause harmful

interference to U.S. Navy radar stations or NASA TDRSS stations.

                The maximum EIRP density identified for all bands in Attachment 1 will also not

be exceeded, except in the case of certain tests involving high-powered continuous wave (“CW”)
                                                                         3
carriers transmitted in the 14.0-14.5 GHz and 17.3-17.55 GHz bands. Furthermore, TT&C

transmissions during drift of SES-10 will be on a non-harmful interference basis.

2
 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.
3
    47 C.F.R. § 25.275(e).

                                                                                                         3


                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.4

                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
                                                                        5
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

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


4
    PanAmSat Licensee Corp., 17 FCC Rcd 10483, 10492 (Sat. Div. 2002) (footnotes omitted).
5
    See SES-10 Grant, Attachment to Grant at 2, ¶ 5.

                                                                                                    4


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
                                                                                  6
(“FS”) stations by limiting FSS use of the band to international operations only. SES-10 will
                                                                            7
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.

                For the foregoing reasons, SES Americom respectfully requests special temporary

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

to conduct IOT at 68.5° W.L. and provide TT&C to maintain the satellite at 68.5° W.L. and drift

the spacecraft to 66.9° W.L., as described herein. Grant of the requested authority will promote

safe operation of the satellite during and after testing.

                                                Respectfully submitted,

                                                SES AMERICOM, INC.

                                                By: /s/ Petra Vorwig

Of Counsel                                          Petra A. 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: March 2, 2017



6
 See 47 C.F.R § 2.106, Footnote NG52. This policy was previously codified in footnote
NG104.
7
    See SES-10 Grant, Attachment to Grant at 1-2, ¶ 3.

                                                                                                    5


                                          Attachment 1

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:                         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:               317.7 meters
Total Input Power at the Flange:      3000 watts
Total EIRP for all Carriers:          94.87 dBW

TT&C 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     2M83F9W           68            39.5
                               and Vertical
13750-14000       T            Horizontal     54M0F9W           80.8          39.5
                               and Vertical
14000-14500       T            Horizontal     800KF9W           75.1          52.1
                               and Vertical
14000-14500       T            Horizontal     1M0F9W            76            52.1
                               and Vertical
14000-14500       T            Horizontal     N0N               52.1          52.1
                               and Vertical
10950-11200       R            Horizontal     800KF9W
                               and Vertical


10950-11200   R           Horizontal     1M0F9W
                          and Vertical
11450-11700   R           Horizontal     800KF9W
                          and Vertical
11450-11700   R           Horizontal     1M0F9W
                          and Vertical
11700-12200   R           Horizontal     800KF9W
                          and Vertical
11700-12200   R           Horizontal     1M0F9W
                          and Vertical

IOT 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     54M0G7W      80.8          39.5
                          and Vertical
14000-14500   T           Horizontal     100KG7W      60.0          46.1
                          and Vertical
14000-14500   T           Horizontal     54M0G7W      87.4          46.1
                          and Vertical
14000-14500   T           Horizontal     N0N          46.1          46.1
                          and Vertical
17300-17550   T           Horizontal     100KG7W      63.96         49.98
                          and Vertical
17300-17550   T           Horizontal     36M0G7W      89.52         49.98
                          and Vertical
17300-17550   T           Horizontal     N0N          49.98         49.98
                          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


                               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 Somis, CA


                                           Exhibit For
                                      SES Americom, LLC
                                South Mountain (Somis), California
                             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 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

     •   Coordinates (NAD83):                     34° 19’ 31.77” N, 118° 59’ 43.8” 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:                               No Modulation and Digital

     •   Maximum Aggregate Uplink EIRP:           39.5 dBW for the N0N 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
     •   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)
                                                   -20.6 dBW
                                                    or -20.6 dBW/4 kHz (Maximum)


     •   RF power into Antenna Flange         100 kHz
          (Continued)                         -6.6 dBW
                                               or -20.6 dBW/4 kHz

                                               1 MHz
                                               3.4 dBW
                                               or -20.6 dBW/4 kHz (Maximum)

                                               36 MHz
                                               18.9 dBW
                                               or –20.6 dBW/4 kHz (Maximum)

                                               54 MHz
                                               20.7 dBW
                                               or –20.6 dBW/4 kHz (Maximum)

     •   Minimum Elevation Angle:
          Somis, CA                             23.7° @ 114.9° 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 – 14.0 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 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:
                                          N0N         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/4 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:

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

       = -20.6 dBw/4 kHz + (-4.8) dBi – 10*log[4Π*(28770m)2]
       = -125.6 dBW/m2/4 kHz + Additional Path Losses (~41.8 dB)
       = -167.4 dBW/m2/4 kHz

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

       = -20.6 dBw/4 kHz + (-4.8) dBi – 10*log[4Π*(28770m)2]
       = -125.6 dBW/m2/4 kHz + Additional Path Losses (~41.8 dB)
       = -167.4 dBW/m2/4 kHz

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

       = -20.6 dBw/4 kHz + (-4.8) dBi – 10*log[4Π*(28770m)2]
       = -125.6 dBW/m2/4 kHz + Additional Path Losses (~41.8 dB)
       = -167.4 dBW/m2/4 kHz


                                            (Continued)


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

       = -20.6 dBw/4 kHz + (-4.8) dBi – 10*log[4Π*(28770m)2]
       = -125.6 dBW/m2/4 kHz + Additional Path Losses (~41.8 dB)
       = -167.4 dBW/m2/4 kHz

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

       = -20.6 dBw/4 kHz + (-4.8) dBi – 10*log[4Π*(28770m)2]
       = -125.6 dBW/m2/4 kHz + Additional Path Losses (~41.8 dB)
       = -167.4 dBW/m2/4 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/m2/4 kHz for the CW Carriers, 100 kHz, 1 MHz, 36 MHz and 54 MHz carriers.
This is 0.4 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 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 exception of the 36 MHz and 54 MHz emissions.



Document Created: 2017-03-02 16:35:34
Document Modified: 2017-03-02 16:35:34

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