Attachment FCC_Bristow71rpt.pdf

This document pretains to SES-MFS-20110715-00822 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2011071500822_892864

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                     Prepared for

                 SES Americom, Inc.
                   Bristow, Virginia
                 (Call Sign: E020071)

                Satellite Earth Station




                     Prepared By:
                    COMSEARCH
             19700 Janelia Farm Boulevard
                Ashburn, Virginia 20147
                     April 1, 2011


                                                     TABLE OF CONTENTS
1. CONCLUSIONS.............................................................................................................................................3
2. SUMMARY OF RESULTS.............................................................................................................................4
3. SUPPLEMENTAL SHOWING .......................................................................................................................5
4. EARTH STATION COORDINATION DATA ..................................................................................................9
5. CERTIFICATION .........................................................................................................................................15




Frequency Coordination and Interference Analysis Report                                             04/01/2011                       Page 2 of 15


1. CONCLUSIONS



An interference study considering all existing, proposed and prior coordinated microwave
facilities within the coordination contours of the proposed earth station demonstrates that
this site will operate satisfactorily with the common carrier microwave environment.
Further, there will be no restrictions of its operation due to interference considerations.




Frequency Coordination and Interference Analysis Report   04/01/2011         Page 3 of 15


2. SUMMARY OF RESULTS


A number of great circle interference cases were identified during the interference study of
the proposed earth station. Each of the cases, which exceeded the interference objective
on a line-of-sight basis, was profiled and the propagation losses estimated using NBS
TN101 (Revised) techniques. The losses were found to be sufficient to reduce the signal
levels to acceptable magnitudes in every case.

The following companies reported potential great circle interference conflicts that did not
meet the objectives on a line-of-sight basis. When over-the-horizon losses are considered
on the interfering paths, sufficient blockage exists to negate harmful interference from
occurring with the proposed transmit-receive earth station.


       Company

       Clearwire Spectrum Holdings III, LLC
       FiberTower Network Services Corp.
       New Cingular Wireless PCS – VA/DC/MD
       Public Broadcasting Service
       Roadstar Internet, Inc.



No other carriers reported potential interference cases.




Frequency Coordination and Interference Analysis Report    04/01/2011         Page 4 of 15


3. SUPPLEMENTAL SHOWING
Pursuant to Part 25.203(c) of the FCC Rules and Regulations, the satellite earth station proposed in this
application was coordinated by Comsearch using computer techniques and in accordance with Part 25 of
the FCC Rules and Regulations.

Coordination data for this earth station was sent to the below listed carriers with a letter dated March 2,
2011.


        Company

        ACCELACOM-BALTIMORE LLC
        ALLEGANY COLLEGE OF MARYLAND
        ART Licensing Corp.
        AT&T COMMUNICATIONS OF MARYLAND INC
        AT&T COMMUNICATIONS OF VIRGINIA INC
        AT&T CORP
        Airband Communications Inc
        Albermarle, County of, Virginia
        Allegheny Power Service Corporation
        Alltel Communications LLC - Verizon SOVA
        Alltel Communications of Petersburg Inc
        Alltel Communications of Virginia #1 LLC
        Atlantic Broadband (Delmar), LLC
        Atlantic Broadband (Penn), LLC
        BALTIMORE CITY DEPARTMENT OF PUBLIC WORK
        BAY BROADBAND COMMUNICATIONS LLC
        Baltimore County of Maryland
        Baltimore Gas and Electric Company
        Bedford, County of
        Believe Wireless, LLC
        Blaze Broadband
        CHESTER, COUNTY OF
        COMMONWEALTH OF PENNSYLVANIA,RADIO PROJ.
        COUNTY OF DINWIDDIE
        Cambria, County of
        Cape May County Municipal Utilities Auth
        Cape May County, MIS Department
        Cellco Partnership - Bridgeville, PA
        Cellco Partnership - Southern Virginia
        Cellco Partnership- PA Region
        Cellco Prtnrshp - Phil. Tri-State Rgn
        Chesterfield, County of
        City of Laurel
        City of Ocean City, MD




Frequency Coordination and Interference Analysis Report             04/01/2011             Page 5 of 15


       Company (Continued)

       Clearwire Spectrum Holdings II, LLC
       Clearwire Spectrum Holdings III, LLC
       Clearwire Spectrum Holdings LLC
       Conterra Ultra Broadband, LLC
       County of Nelson
       County of Stafford
       Cricket Communications, Inc
       Cumberland, County of
       D&E Communications, Inc.
       DELAWARE STATE - DTI
       Eduro Networks LLC
       Enoch Pratt Free Library
       Exelon Generation Company, L.L.C
       FiberTower Network Services Corp.
       Franklin County Dept. of Emergency Servi
       Frederick County
       GEORGE MASON UNIVERSITY INSTR FNDTION
       Gannett Company, Inc.
       Globecomm Systems, Inc.
       HANOVER COUNTY
       HENRICO COUNTY
       Hampton Roads Planning District Commissi
       Hardy Cellular Telephone Company
       Harrisonburg-Rockingham ECC
       Huntingdon County of
       International Communications Group, Inc.
       John Hopkins University
       Kent County Levy Court
       King George County
       LANCASTER COUNTY OF
       LOWER SHORE BROADBAND COOPERATIVE
       Last Mile Inc.
       Loudoun County Public Schools
       Loudoun Wireless LLC
       Loudoun, County of
       M&T Bank
       METROPOLITAN AREA NETWORKS, INC.
       MIT LINCOLN LABORATORY
       Maryland Port Administration
       Maryland Public Broadcasting Commission
       Maryland State Highway Administration
       Maryland, State of - Budget & Management
       Middle East Broadcasting Networks, Inc.
       Mifflin County
       Montgomery, County of
       NEW JERSEY STATE POLICE
       NOROC Broadband LLC
       National Radio Astronomy Observatory
       Netrepid, Inc.
       New Cingular Wireless PCS - VA/DC/MD
       New Cingular Wireless PCS LLC - DC
       New Cingular Wireless PCS, LLC - PA
       New Cingular Wireless PCS, LLC - WV/VA


Frequency Coordination and Interference Analysis Report   04/01/2011   Page 6 of 15


       Company (Continued)

       New Jersey Turnpike Authority
       New Jersey Turnpike Authority-Pkwy Div
       New Kent County
       Nextlink Wireless, Inc
       Northern Virginia Electric Cooperative
       Open Range Communications
       PENNSYLVANIA COMMONWEALTH MEDIA SERVICES
       PENNSYLVANIA MICROWAVE NETWORK INC.
       PENNSYLVANIA TURNPIKE COMMISSION
       Petersburg Cellular Partnership
       Petersburg Police Department
       Pontis Communications, Inc.
       Port Networks, LLC
       Public Broadcasting Service
       RAYTHEON COMPANY
       RCTC Wholesale Corporation - Verizon
       RapidDSL & Wireless, Inc.
       Roadstar Internet, Inc.
       Rural Broadband Network Services LLC
       SCTF NET
       SECOM NET
       SOMERSET COUNTY
       Salem County Information Technology
       Shenandoah Personal Communications Co
       Somerset County, Maryland
       State of Maryland, MIEMSS
       State of WV DHHR/BPH STECS
       Synergy Telecommunications Corp
       THE HERSHEY COMPANY
       Telecom Transport Management, Inc
       UNIVERSITY OF MARYLAND
       USCOC of Cumberland, Inc.
       USCOC of Virginia RSA #2, Inc.
       USCOC of Virginia RSA #3, Inc.
       Verizon New Jersey, Inc.
       Verizon Virginia, Inc.
       Virginia Broadband, LLC
       Virginia Department of State Police
       Virginia Electric & Power Company
       Virginia RSA #7, Inc.
       WASHINGTON SUBURBAN SANITARY COMMISSION
       WEST VIRGINIA RADIO CORPORATION
       WICOMICO BOARD OF EDUCATION
       Warrenton Fauquier Joint Communications
       Washington Gas Light Company
       Western PA Internet Access, Inc.
       York County
       York County Dept of Emergency Services




Frequency Coordination and Interference Analysis Report   04/01/2011   Page 7 of 15


       Company (Continued)

       ACC License, LLC
       American Broadcasting Companies, Inc.
       Antietam Cable TV
       C-SPAN
       CBS Broadcasting Inc
       CBS Corporation
       COMMONWEALTH PUBLIC BROADCASTING
       CTVN HARRISBURG, LLC
       Comcast Cable Communications (Virginia)
       Cox Communications - Northern VA
       Delmarva Broadcast Service
       Detroit Free Press, Inc.
       ENTRAVISION HOLDINGS, LLC
       F CORPORATION
       Gans Communications, L.P.
       Gray Television Licensee, Inc (WCAV)
       HOWARD UNIVERSITY TELEVISION - (WHUT-TV)
       Hampton Roads Educational Telecommunicat
       INTER MOUNTAIN CABLE, INC.
       JLA MEDIA AND PUBLICATIONS, LLC
       LIBERTY UNIVERSITY
       MEDIA GENERAL COMMUNICATIONS HOLDINGS, L
       Multimedia Holdings Corporation
       NATIONAL CABLE SATELLITE CORPORATION
       NBC TELEMUNDO LICENSE CO.
       Newport Television LLC
       Pacific and Southern Company, Inc.
       Pennsylvania Educational Comm Systems
       SHENANDOAH VALLEY EDUCATIONAL TV CORP
       WBAL HEARST-ARGYLE TV, INC. (CA CORP.)
       WDBJ Television, Inc
       WDCW BROADCASTING, INC.
       WEST VIRGINIA EDUCATIONAL BROADCASTING
       WEST VIRGINIA MEDIA HOLDINGS, LLC
       WGAL Hearst- Argyle Television, Inc
       WHYY, INC
       WITF Inc.
       WRLH
       WWBT, Inc.
       Young Broadcasting-WRIC-TV (PTP) DIP




Frequency Coordination and Interference Analysis Report   04/01/2011   Page 8 of 15


4. EARTH STATION COORDINATION DATA
This section presents the data pertinent to frequency coordination of the proposed earth station that was
circulated to all carriers within its coordination contours.




Frequency Coordination and Interference Analysis Report            04/01/2011            Page 9 of 15


                                                             COMSEARCH
                                                       Earth Station Data Sheet
                                             19700 Janelia Farm Boulevard, Ashburn, VA 20147
                                                (703)726-5500 http://www.comsearch.com

Date:                                    04/01/2011
Job Number:                              110302COMSJC10
Administrative Information
Status                                   ENGINEER PROPOSAL
Call Sign                                E020071
Licensee Code                            P3210
Licensee Name                            SES Americom, Inc.
Site Information                         BRISTOW, VIRGINIA
Venue Name
Latitude (NAD 83)                        38° 47' 1.8" N
Longitude (NAD 83)                       77° 34' 23.0" W
Climate Zone                             A
Rain Zone                                2
Ground Elevation (AMSL)                  85.4 m / 280.2 ft
Link Information
Satellite Type                           Geostationary
Mode                                     TR - Transmit-Receive
Modulation                               Digital
Satellite Arc                            6° W to 149° West Longitude
Azimuth Range                            101.8° to 258.1°
Corresponding Elevation Angles           5.6° / 5.7°
Antenna Centerline (AGL)                 8.0 m / 26.3 ft
Antenna Information                             Receive - V81301                       Transmit - V91301
Manufacturer                                    VERTEX/RSI                             VERTEX/RSI
Model                                           13KPK                                  13 KPK
Gain / Diameter                                 62.6 dBi / 13.0 m                      63.9 dBi / 13.0 m
3-dB / 15-dB Beamwidth                          0.10° / 0.26°                          0.11° / 0.22°

Max Available RF Power        (dBW/4 kHz)                                              SEE ATTACHMENT 1
                              (dBW/MHz)                                                SEE ATTACHMENT 1

Maximum EIRP                  (dBW/4 kHz)                                              SEE ATTACHMENT 1
                              (dBW/MHz)                                                SEE ATTACHMENT 1


Interference Objectives:    Long Term           -156.0 dBW/MHz        20%              -151.0 dBW/4 kHz      20%
                            Short Term          -146.0 dBW/MHz        0.01%            -128.0 dBW/4 kHz      0.0025%
Frequency Information                           Receive 11.0 GHz                       Transmit 14.0 GHz
Emission / Frequency Range (MHz)                SEE ATTACHMENT 1                       SEE ATTACHMENT 1


Max Great Circle Coordination Distance          682.5 km / 424.0 mi                    302.1 km / 187.7 mi
Precipitation Scatter Contour Radius            595.8 km / 370.2 mi                    100.0 km / 62.1 mi




Frequency Coordination and Interference Analysis Report                       04/01/2011          Page 10 of 15


                                                             COMSEARCH
                                                        Earth Station Data Sheet
                                             19700 Janelia Farm Boulevard, Ashburn, VA 20147
                                                (703)726-5500 http://www.comsearch.com


                                                                                                ATTACHMENT 1
                                                                                                   Page 1 of 2


                                       SES Americom
                                  Antenna: Vertex/RSI Meter
                                        Model: 13 KPK


                                       11 GHz Gain: 62.6 dBi
                                       14 GHz Gain: 63.9 dBi


Modulation:      Digital

Satellite Arc: 6.0° to 149.0° West Longitude

Frequencies:

     Receive Band: 10950.0 – 11200.0 MHz
                   11450.0 – 12200.0 MHz
                   12250.0 – 12750.0 MHz

             Emissions: 500KG7W – 77M0G7W
                        500KD7W – 77M0D7W



     Transmit Band:         13750.0 – 14000.0 MHz

                                               RF Power Density                         EIRP Density
              Emission                          (dBW/4 kHz)                            (dBW/ 4 kHz)

     500KG7W to 77M0G7W                        -14.0 to -24.6                          49.9 to 39.3
     500KD7W to 77M0D7W                        -14.0 to -24.6                          49.9 to 39.3

   ---------------------------------------------------------------------------------------------------

     Transmit Band:         13780.0 – 14000.0 MHz

                                               RF Power Density                         EIRP Density
              Emission                          (dBW/4 kHz)                            (dBW/ 4 kHz)

     1M00G7W to 77M0G7W                         -14.0 to -15.8                         49.9 to 48.1
     1M00D7W to 77M0D7W                         -14.0 to -15.8                         49.9 to 48.1


    ---------------------------------------------------------------------------------------------------




Frequency Coordination and Interference Analysis Report                           04/01/2011              Page 11 of 15


                                                             COMSEARCH
                                                        Earth Station Data Sheet
                                              19700 Janelia Farm Boulevard, Ashburn, VA 20147
                                                (703)726-5500 http://www.comsearch.com




                                                                                                ATTACHMENT 1
                                                                                                   Page 2 of 2



   Transmit Band:          14000.0 – 14005.0 MHz

                                               RF Power Density                         EIRP Density
              Emission                          (dBW/4 kHz)                            (dBW/ 4 kHz)

             1M00G7D                                 -14.0                                    49.9


 ------------------------------------------------------------------------------------------------------


     Transmit Band:         14000.0 – 14500.0 MHz

                                               RF Power Density                         EIRP Density
              Emission                          (dBW/4 kHz)                            (dBW/ 4 kHz)

     500KG7W to 77M0G7W                         -14.0 to -15.8                         49.9 to 48.1
     500KD7W to 77M0D7W                         -14.0 to -15.8                         49.9 to 48.1


   ---------------------------------------------------------------------------------------------------


     Transmit Band:         14495.0 – 14500.0 MHz

                                               RF Power Density                         EIRP Density
              Emission                          (dBW/4 kHz)                            (dBW/ 4 kHz)

             1M00G7D                                 -14.0                                    49.9




Frequency Coordination and Interference Analysis Report                           04/01/2011              Page 12 of 15


                                                  COMSEARCH
                                              Earth Station Data Sheet
                                     19700 Janelia Farm Boulevard, Ashburn, VA 20147
                                       (703)726-5500 http://www.comsearch.com
Coordination Values              BRISTOW, VA
Licensee Name                     SES Americom, Inc.
Latitude (NAD 83)                 38° 47' 1.8" N
Longitude (NAD 83)                77° 34' 23.0" W
Ground Elevation (AMSL)           85.4 m / 280.2 ft
Antenna Centerline (AGL)          8.0 m / 26.3 ft
Antenna Model                     VERTEX/RSI 13 KPK
Antenna Mode                             Receive 11.0 GHz                          Transmit 14.0 GHz
Interference Objectives: Long Term       -156.0 dBW/MHz 20%                        -151.0 dBW/4 kHz         20%
                         Short Term      -146.0 dBW/MHz 0.01%                      -128.0 dBW/4 kHz         0.0025%
 Max Available RF Power                                                            -14.0 (dBW/4 kHz)

                                                              Receive 11.0 GHz                         Transmit 14.0 GHz
               Horizon            Antenna                 Horizon        Coordination          Horizon         Coordination
Azimuth (°)    Elevation (°)      Discrimination (°)      Gain (dBi)     Distance (km)         Gain (dBi)      Distance (km)
 0              0.68              101.75                  -10.40          196.45                -10.10         100.00
  5             0.88              96.77                   -10.40          186.36                -10.10         100.00
 10             0.77              91.78                   -10.40          192.04                -10.10         100.00
 15             0.71              86.80                   -10.40          195.13                -10.10         100.00
 20             0.60              81.82                   -10.40          200.53                -10.10         100.00
 25             0.47              76.84                   -10.40          204.94                -10.10         100.00
 30             0.43              71.87                   -10.40          208.29                -10.10         100.00
 35             0.00              66.91                   -10.40          229.63                -10.10         115.56
 40             0.31              61.92                   -10.40          219.21                -10.10         107.05
 45             0.45              56.94                   -10.40          206.96                -10.10         100.00
 50             0.29              51.98                   -10.40          220.60                -10.10         108.20
 55             0.00              47.05                    -9.81          232.20                 -9.51         117.02
 60             0.00              42.10                    -8.82          236.61                 -8.52         119.50
 65             0.00              37.16                    -7.26          243.77                 -6.96         123.44
 70             0.00              32.23                    -5.85          250.65                 -5.55         127.06
 75             0.00              27.33                    -4.33          258.13                 -4.03         129.73
 80             0.00              22.47                    -1.88          270.76                 -1.58         136.49
 85             0.00              17.68                     0.99          286.40                  1.29         145.33
 90             0.00              13.04                     4.56          304.47                  3.90         154.21
 95             0.00               8.80                     7.60          325.60                  7.90         170.67
100             0.00               5.89                     9.83          682.46                 10.13         302.06
105             0.00               6.46                     8.68          438.38                  8.98         205.48
110             0.00               9.87                     6.73          319.24                  7.03         167.38
115             0.59              13.21                     4.39          268.75                  3.90         124.61
120             0.59              16.87                     1.48          252.65                  1.78         118.74
125             0.65              20.40                    -0.64          238.56                 -0.34         110.69
130             0.72              23.81                    -2.69          225.06                 -2.39         102.46
135             0.78              27.08                    -4.23          214.59                 -3.93         100.00
140             0.86              30.17                    -5.43          205.60                 -5.13         100.00
145             0.96              33.05                    -6.01          201.30                 -5.71         100.00
150             1.04              35.68                    -6.67          195.39                 -6.37         100.00
155             0.78              38.30                    -7.72          202.42                 -7.42         100.00
160             0.56              40.58                    -8.52          207.59                 -8.22         100.00
165             0.50              42.32                    -8.86          209.34                 -8.56         100.00
170             0.21              43.84                    -9.17          233.93                 -8.87         117.75
175             0.34              44.49                    -9.30          221.50                 -9.00         107.77
180             0.34              44.75                    -9.35          220.66                 -9.05         107.13
185             0.00              44.83                    -9.37          234.16                 -9.07         118.13




Frequency Coordination and Interference Analysis Report                04/01/2011            Page 13 of 15


                                                  COMSEARCH
                                              Earth Station Data Sheet
                                     19700 Janelia Farm Boulevard, Ashburn, VA 20147
                                       (703)726-5500 http://www.comsearch.com



Coordination Values              BRISTOW, VA
Licensee Name                     SES Americom, Inc.
Latitude (NAD 83)                 38° 47' 1.8" N
Longitude (NAD 83)                77° 34' 23.0" W
Ground Elevation (AMSL)           85.4 m / 280.2 ft
Antenna Centerline (AGL)          8.0 m / 26.3 ft
Antenna Model                     VERTEX/RSI 13 KPK
Antenna Mode                             Receive 11.0 GHz                          Transmit 14.0 GHz
Interference Objectives: Long Term       -156.0 dBW/MHz 20%                        -151.0 dBW/4 kHz         20%
                         Short Term      -146.0 dBW/MHz 0.01%                      -128.0 dBW/4 kHz         0.0025%
 Max Available RF Power                                                            -14.0 (dBW/4 kHz)

                                                              Receive 11.0 GHz                         Transmit 14.0 GHz
               Horizon            Antenna                 Horizon        Coordination          Horizon         Coordination
Azimuth (°)    Elevation (°)      Discrimination (°)      Gain (dBi)     Distance (km)         Gain (dBi)      Distance (km)
190             0.00               44.04                   -9.21          234.86                 -8.91         118.53
195             0.00               42.77                   -8.95          236.00                 -8.65         119.16
200             0.00               41.06                   -8.61          237.54                 -8.31         120.02
205             0.00               38.96                   -7.98          240.42                 -7.68         121.61
210             0.00               36.52                   -7.01          245.10                 -6.71         124.09
215             0.00               33.79                   -6.16          249.15                 -5.86         126.26
220             0.00               30.82                   -5.56          252.03                 -5.26         127.79
225             0.00               27.65                   -4.46          257.48                 -4.16         130.64
230             0.00               24.31                   -2.99          264.96                 -2.69         133.34
235             0.00               20.85                   -0.91          275.95                 -0.61         139.37
240             0.27               17.08                    1.35          280.76                  1.65         139.83
245             0.33               13.39                    4.21          291.04                  3.90         141.73
250             0.31               9.66                     6.94          306.79                  7.24         154.83
255             0.30               6.25                     9.11          426.04                  9.41         197.57
260             0.32               5.72                    10.17          672.83                 10.47         297.13
265             0.45               8.67                     7.60          296.10                  7.90         144.35
270             0.45               12.99                    4.61          280.67                  3.91         131.46
275             0.45               17.67                    1.00          260.31                  1.30         125.40
280             0.45               22.48                   -1.89          245.70                 -1.59         118.09
285             0.47               27.36                   -4.34          231.46                 -4.04         110.09
290             0.46               32.27                   -5.85          225.19                 -5.55         106.85
295             0.47               37.21                   -7.28          218.20                 -6.98         102.71
300             0.47               42.16                   -8.83          211.67                 -8.53         100.00
305             0.46               47.11                   -9.82          208.58                 -9.52         100.00
310             0.47               52.08                  -10.40          205.41                -10.10         100.00
315             0.44               57.05                  -10.40          207.63                -10.10         100.00
320             0.46               62.02                  -10.40          206.44                -10.10         100.00
325             0.49               66.99                  -10.40          203.75                -10.10         100.00
330             0.48               71.97                  -10.40          204.47                -10.10         100.00
335             0.51               76.94                  -10.40          204.76                -10.10         100.00
340             0.44               81.92                  -10.40          207.64                -10.10         100.00
345             0.54               86.90                  -10.40          203.30                -10.10         100.00
350             0.53               91.88                  -10.40          203.74                -10.10         100.00
355             0.59               96.86                  -10.40          200.95                -10.10         100.00




Frequency Coordination and Interference Analysis Report                04/01/2011            Page 14 of 15


5. CERTIFICATION




I HEREBY CERTIFY THAT I AM THE TECHNICALLY QUALIFIED PERSON RESPONSIBLE FOR THE
PREPARATION OF THE FREQUENCY COORDINATION DATA CONTAINED IN THIS APPLICATION,
THAT I AM FAMILIAR WITH PARTS 101 AND 25 OF THE FCC RULES AND REGULATIONS, THAT I
HAVE EITHER PREPARED OR REVIEWED THE FREQUENCY COORDINATION DATA SUBMITTED
WITH THIS APPLICATION, AND THAT IT IS COMPLETE AND CORRECT TO THE BEST OF MY
KNOWLEDGE AND BELIEF.




Jeffrey E. Cowles
Engineer III, Telecommunications
COMSEARCH
19700 Janelia Farm Boulevard
Ashburn, Va. 20147


DATED: April 1, 2011




Frequency Coordination and Interference Analysis Report   04/01/2011   Page 15 of 15



Document Created: 2019-04-15 08:56:03
Document Modified: 2019-04-15 08:56:03

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