Narrative Statement

0196-EX-ST-2012 Text Documents

Intelsat License LLC

2012-03-06ELS_123741

                                   Request for Experimental Special Temporary Authority
                                                                      Intelsat License LLC


        NARRATIVE DESCRIPTION AND PUBLIC INTEREST STATEMENT
                   In-flight Testing of KuStream Terminal


       Intelsat License LLC (“Intelsat”) seeks experimental special temporary authority

(“STA”) for in-flight testing of a Ku-band satellite earth station terminal to demonstrate the

functionality of the terminal with the Intelsat network to a U.S. Government customer. Intelsat

seeks to commence operations no later than April 2, 2012 for a period of 90 days.

I.     INTRODUCTION

       Intelsat, a leading satellite service provider, is demonstrating Ku-band mobile VSAT

connectivity using its Fixed-Satellite Service (“FSS”) network. The demonstration involves

temporary operation of an aircraft-mounted terminal in the 14.0-14.5 GHz band (transmit) and

11.7-12.2 GHz band (receive). The terminal – the TECOM KuStream 1500 – is designed for

aeronautical applications and has been previously licensed by the Commission.

       Adjacent FSS satellites will be protected from harmful interference by limiting the off-

axis EIRP spectral density along the GSO arc to no more than the levels permitted for routinely

licensed Ku-band VSAT terminals. Intelsat’s experimental operations will not impact other

users of the Ku-band (including U.S. Government radio astronomy and space services).

       There is ample precedent for granting Intelsat an experimental STA to perform this

testing based on prior authority for experimental operations granted to Boeing (Call Sign

WC2XVE), ARINC (Call Sign WC2XPE), Hughes Network Systems (Call Sign WE2XEW),

Panasonic Avionics (Call Sign WD9XQT) and others, including for Intelsat experimental

operations in the land mobile context (File No. 0158-EX-ST-2012, currently pending). For more

information on the KuStream terminal, see www.kustream.com.

                                               -1-


                                      Request for Experimental Special Temporary Authority
                                                                         Intelsat License LLC

II.        DESCRIPTION OF PROPOSED EXPERIMENTAL OPERATIONS

           Intelsat seeks to demonstrate the TECOM KuStream 1500 terminal for in-flight

operations onboard a U.S. Government transport aircraft. Intelsat seeks to conduct flight testing

for a 90-day period commencing no later than April 2, 2012. Authority is sought for operations

in continental United States (“CONUS”) and adjacent international waters.

           Intelsat’s experimental flight-test operations are being conducted in connection with U.S.

Government evaluation and procurement activities. Thus, Intelsat seeks authority to provide

services under contractual agreement with the U.S. Government pursuant to Section 5.3 of the

Commission’s rules (47 C.F.R. § 5.3).

           Intelsat recognizes and accepts that any experimental STA will be conditioned upon non-

interference and protection of co-frequency operations, including Ku-band FSS operations and

U.S. Government radio astronomy and space services. In the absence of coordination

agreements, Intelsat will conduct flight testing only in areas that are outside exclusion zones for

radio astronomy sites (during observations) and NASA TDRSS sites in accordance with

applicable FCC rules. In addition, Intelsat may conduct flight tests in international airspace (e.g.,

off the U.S. coastline).

           Intelsat will examine the following performance objectives in connection with flight

testing:

              o   forward carrier (hub to terminal) throughput rate;
              o   return carrier (terminal to hub) throughput rate;
              o   re-acquisition time when switching between satellite beams;
              o   two-way videoconferencing between aircraft and ground;
              o   geographic mapping; and
              o   network management and operation.




                                                  -2-


                                   Request for Experimental Special Temporary Authority
                                                                      Intelsat License LLC

       The operations will be intermittent and limited in duration and, in all cases, the aircraft

will operate in selected conditions in a dedicated manner under control of Intelsat’s network

control personnel.

       A. The KuStream 1500 Terminal

       The KuStream 1500 terminal, manufactured by TECOM/Qest, is a government version of

the KuStream terminal that has been previously authorized by the Commission for both

experimental and commercial operations. For example, the TECOM terminal was authorized for

aeronautical experimental operations by Row 44, Inc. in 2009 (File No. 0236-EX-PL-2009, Call

Sign WF2XBY), and for commercial operations in 2010 (File No. SES-MOD-20091021-01342,

Call Sign E080100).

       The material operating parameters of the KuStream antenna are well-known to the

Commission, including:

           o 0.2º pointing accuracy; automatic muting within 100ms if pointing offset exceeds
             0.5º and delaying resumption of transmissions until pointing accuracy is within
             0.2º;
           o compliance with Section 25.209 antenna gain pattern through 35º skew angle (the
             terminal automatically mutes transmissions at skew angles greater than 35º); and
           o compliance with Section 25.222 and 25.226 off-axis EIRP levels (i.e., VSAT
             routine licensing levels applicable to Ku-band ESV and VMES operations), which
             have been applied in the aeronautical context.




                                                -3-


                                    Request for Experimental Special Temporary Authority
                                                                       Intelsat License LLC

       Thus, the KuStream antenna complies fully with the Commission’s two-degree spacing

policies and rules designed to protect co-frequency operations from harmful interference. Charts

are provided below showing the gain of the KuStream 1500. Section 25.209 gain patterns and

off-axis EIRP levels are provided below and confirm applicable limits are met for co-

polarization and cross-polarization for all operating scenarios.




                                                -4-


                        KuStream 1500 Gain
                     Co—polarization, GEO Plane
                     Close in: +/— 15 Degrees Azimuth
                                                        —Stew=0 ber.

                              fN                        |Eerelomeeose
                                                        —Stew=25 beg.


             22) \                        \
Gain (aBi)




                              C




                                                   S SA Y

                          4         0          3         6        9     12   15
                          Asimuth Angle {degree)


                                    Request for Experimental Special Temporary Authority
                                                                       Intelsat License LLC




       The terminal will be configured to not transmit more than 44 dBW EIRP. (This translates

into an ERP of 15,310 W and a transmit power of 17.35 W). This power limitation is

implemented as part of the commissioning procedure of the terminal.

       The terminal includes an iDirect modem which will be set with an appropriate maximum

Tx IF level to ensure that 44 dBW EIRP is not exceeded. In addition, the terminal and space

segment will operate in single carrier mode (i.e., there will be a single hub-to-terminal carrier

and a single terminal-to-hub carrier). Below are charts showing the off-axis power spectral

density of the carrier transmitted from the KuStream 1500 terminal.




                                                -6-


                                                              KuStream 1500 Power Spectral Density
                                                                     Co—polarization, GEO Plane
                                                                    44 dBW Tx EIRP over 4.992 MHz
                                                                     Full Azimuth:+/— 180 Degrees
                                     ®                                                                         |___L          _
                                     10                                                                      —Stew=0 Deg.          a
                                                                                                             —Stew=35 Deg.
                                     0                                                                       —rcc25225 Geo Plane
Power Spectral Density {dBW/Aktt2)
                         &s




                                                                   wl  w
                                     &




                                                                    [— wfi

                                                                                                         _
                                                   (JW\{ HT
                                             z.1
                                             2 }




                                          saso   aso   420    90          30       0       30       so               120     150   180
                                                                         Asimuth Angle {degree}


                                                  KuStream1500 Power Spectral Density
                                                        Co—polarization, GEO Plane
                                                        44 dBW Tx EIRP over 4.992 MHz
                                                       Close in: +/— 15 DegreesAzimuth
                                     20

                                     10



                                                                              m   t
                                          ——i—{a/ lW
Power Spectral Density {dBW/Aktt2)




                                                                              Wik     L
                                          /\/A”( ~
                                              I




                                                                                  3      s   12   is
                                                             Asimuth Angle {degree)


                                   Request for Experimental Special Temporary Authority
                                                                      Intelsat License LLC




Intelsat has included a Radiation Hazard study as Attachment A.

       B.      Satellite Point of Communications

       Intelsat will use commercial FSS satellite capacity to conduct its experimental operations.

Specifically, the antenna will communicate with Intelsat’s Galaxy 25 satellite at 93.1º W.L. and

Intelsat’s Galaxy 19 satellite at 97.0º W.L.. The operations proposed herein will be in

compliance with the off-axis EIRP limits set forth in analogous Commission’s rules.

       These are the same satellites over which Intelsat recently conducted land mobile testing

without any reported interference incidents. Given that the KuStream 1500 is specifically

designed for aeronautical operations, similar non-interfering operations can be expected.

Example link budget analyses for the KuStream 1500 operations are included below.



                                               -9-


                                                                                                                                            Request for Experimental Special Temporary Authority
                                                                                                                                                                               Intelsat License LLC

Galaxy 25 – Forward and Return Carriers

Customer Support Engineering & Capacity Management
                                                                            Satellite and Role:          G-25 @ 93.10°W                               Total lease resource [MHz]:                       27.0
Link Budget Report for: TECOM Demo                                          Transponder:             KH07/KV07 (NAKH/NAKV)                            Total D/L EIRP Avail. at be/bp [dBW]:          36.1 / 47.1
                                                                            Platform bias:                -0.52°E; 0.00°N                             Total D/L EIRP Used at be/bp [dBW]:            34.4 / 45.4
Opportunity-ID / SSR-ID                                                     Sat. TWT Power [Watts]:            100.0                                  Total BW Used [MHz]:                              23.5
Done by: bauerf           Date: 21 Jan 2012                                 Sat. D/L EIRP at be/bp [dBW]:       39.9 / 50.9                           Xp Operational Mode: Multi-Carrier                              OBO= -3.8         dB
                                                                            SFD at be/bp [dBW/m2]:             -80.5 / -87.4
Application:                STRIP7 v3.9                 Operational         Band Up/Dw [MHz]:         (14154 - 14181) / (11854 - 11881)
                                                                            Polarization Up/Dw:                   H/V

               Diameter        Gtx              G/T          Latitude      Longitude        Xpol                                                                                                                                                           TOTAL HPA
 Antennas                                                                                                            Location (Nearest City and Country)                                                  Notes
                  [m]         [dBi]           [dB/K]           [°N]          [°E]           [dB]                                                                                                                                                            Power [W]
MTN-K11          11.0         62.0            38.7            39.70         282.27          30.0                        MTN-K11 - United States                                                                                                               1.8
TECOM            0.44         33.0            11.8            35.16         280.75          26.0                     Fayetteville - UNITED STATES                                                                                                            16.3

                                                                                                                                                                Per Carrier Link Parameters and Results
                                                                                               Noise     Space          Alloc.             b.e. D/L     C/N     Clear Sky     Eb/No      Clear Sky          Link         U/L    HPA          HPA                    Gx
   Tx E/S       Rx E/S                                 Carrier Type                                                                PEB                                                                                                              WGL UPC
                                                                                                BW       Factor          BW                 EIRP      thresh.      C/N       thresh.      Eb/No            Availab.     EIRP    size         OBO                  apprvl
                                        #, Type, [I.R, OH, FEC, RS, modulation]               [MHz]     (Roll-off)      [MHz]     [MHz]     [dBW]      [dB]       [dB]        [dB]         [dB]             [%/yr]     [dBW]   (Watt)        [dB]   [dB]   [dB]
 MTN-K11       TECOM             DIG (6.221 Mbps, OH=0.0%, 0.3059 FEC, QPSK)                   10.168     1.20          12.203    18.075       34.4      0.2        6.3        2.3          8.4             99.93       64.6    1.8          0.0    0.0 0.0         n/a
 TECOM         MTN-K11           Spread (1.040 Mbps, OH=0.0%, 1/2 FEC, BPSK)                    4.160     1.20           4.992     0.136       13.1     -3.2       -0.6        2.8          5.4             99.95       44.0   12.6          0.0    0.0 0.0         No
                                                   TOTAL:             2 Carriers                                        17.195    18.211       34.4

ISCO comments:

Antenna pattern comments:

                            Clear Sky C/N includes 1.5 dB additional margin for terrestrial interference, antenna mis-pointing
Notes:                      Eb/No includes 0.4 dB IF-RF degradation.
                            * Analysis results based on today's operational levels of interference. Results are not guaranteed due to possible fluctuations in operational interferences over time.




                                                                                                                             - 10 -


         Request for Experimental Special Temporary Authority
                                            Intelsat License LLC




- 11 -


         Request for Experimental Special Temporary Authority
                                            Intelsat License LLC




- 12 -


                                   Request for Experimental Special Temporary Authority
                                                                      Intelsat License LLC



III.   PROTECTION OF OTHER USERS IN THE 14.0–14.5 GHZ BAND

       Protection of Fixed-Satellite Service. Intelsat will comply with the Commission’s off-

axis EIRP limits set forth in analogous ESV and VMES rules. See 47 C.F.R. §§ 25.222 and

25.226. Thus, the terminal will operate in such a manner that the off-axis EIRP levels are no

greater than the levels produced by a routinely licensed VSAT earth station. To the extent that

any adjacent satellite operator experiences unacceptable interference from Intelsat’s

experimental operations, Intelsat will cease terminal transmissions immediately.

       Protection of Potential NGSO FSS Systems. Intelsat acknowledges that non-

geostationary orbit (“NGSO”) systems are also permitted to operate in the Ku-band. However,

no such systems are currently authorized or plan to operate within the period contemplated for

the proposed experimental operations.

       Protection of Terrestrial Radio Services. Intelsat has examined current spectrum use in

the 14.0-14.5 GHz band and has determined that there are no active FCC-licensed terrestrial

services in this band in North America with which its proposed operations could conflict.

       Protection of the Radio Astronomy Service. Intelsat agrees to comply with exclusion

zones designed to protect such radio astronomy sites set forth in Section 25.226(d).

       Protection of Space Research Service. Intelsat recognizes the utilization of the frequency

band from 14.0-14.05 GHz and the possible use of the band from 14.05-14.2 GHz allocated to

the National Aeronautics and Space Administration (“NASA”) Tracking and Data Relay Satellite

System (“TDRSS”) for space research conducted at White Sands, New Mexico and Blossom

Point, Maryland. For purposes of this experimental STA application and consistent with Section


                                              - 13 -


                                    Request for Experimental Special Temporary Authority
                                                                       Intelsat License LLC

25.226(c), Intelsat will avoid AES operation within line-of-sight vicinity of these earth stations.

IV.    SUPERVISION AND CONTROL

       For purposes of these experiments, the Intelsat terminals will be operated under Intelsat’s

full supervision and control. The point of contact for the planned experimental operations is:

       Christopher M. Hudson                             (cell) +1-202-352-1272
                                                         chris.hudson@intelsatgeneral.com

       ISOC – Intelsat Secure Operating Center           +1 (404) 381-2727
                                                         ISOC@intelsatgeneral.com

This contact will have access to all network functions, and will have the ability and authority to

cease all transmissions from the terminals wherever they are located.

VIII. CONCLUSION

       Grant of this experimental STA will allow Intelsat to further develop and demonstrate the

mobile VSAT technologies to support U.S. Government customers. The subject terminal has

been designed to protect other uses in the Ku-band from interference and will comply with FCC

rules and policies governing Ku-band aeronautical operations and analogous services. Because

grant of this request would serve the public interest, Intelsat respectfully requests approval at the

earliest practicable time.




                                                - 14 -



Document Created: 2012-03-06 20:29:19
Document Modified: 2012-03-06 20:29:19

© 2025 FCC.report
This site is not affiliated with or endorsed by the FCC