Attachment Coordination Report

This document pretains to SES-MFS-20160112-00009 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2016011200009_1121364

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                     Prepared for
              Shell Communications Inc
                 GB 172 SALSA, GM
                       (E060221)
                Satellite Earth Station




                     Prepared By:
                    COMSEARCH
             19700 Janelia Farm Boulevard
                 Ashburn, VA 20147
                   January 07, 2016


                                                      TABLE OF CONTENTS
1. CONCLUSIONS ............................................................................................................................................ 3
2. SUMMARY OF RESULTS ............................................................................................................................ 4
3. SUPPLEMENTAL SHOWING ....................................................................................................................... 5
4. EARTH STATION COORDINATION DATA .................................................................................................. 6
5. CERTIFICATION ......................................................................................................................................... 10




Frequency Coordination and Interference Analysis Report                                             01/07/2016                        Page 2 of 10


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   01/07/2016         Page 3 of 10


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.




Frequency Coordination and Interference Analysis Report    01/07/2016         Page 4 of 10


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 12/15/2015.

        Company
        RigNet SatCom, Inc.




Frequency Coordination and Interference Analysis Report                 01/07/2016              Page 5 of 10


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            01/07/2016            Page 6 of 10


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

Date:                                    01/07/2016
Job Number:                              151215COMSGE12
Administrative Information
Status                                   ENGINEER PROPOSAL
Call Sign                                E060221
Licensee Code                            S00876
Licensee Name                            Shell Communications Inc
Site Information                         GB 172 SALSA, GM
Venue Name
Latitude (NAD 83)                        27° 50' 25.2" N
Longitude (NAD 83)                       91° 59' 15.6" W
Climate Zone                             A
Rain Zone                                1
Ground Elevation (AMSL)                  0.0 m / 0.0 ft
Link Information
Satellite Type                           Geostationary
Mode                                     TR - Transmit-Receive
Modulation                               Digital
Satellite Arc                            60° W to 143° West Longitude
Azimuth Range                            126.8° to 249.3°
Corresponding Elevation Angles           42.2° / 26.0°
Antenna Centerline (AGL)                 60.96 m / 200.0 ft
Antenna Information                            Receive - FCC32                        Transmit - FCC32
Manufacturer                                   Andrew                                 Andrew
Model                                          243                                    243
Gain / Diameter                                38.5 dBi / 2.4 m                       42.0 dBi / 2.4 m
3-dB / 15-dB Beamwidth                         1.00° / 2.00°                          1.50° / 3.00°

Max Available RF Power        (dBW/4 kHz)                                             -19.6
                              (dBW/MHz)                                               4.4

Maximum EIRP                  (dBW/4 kHz)                                             22.4
                              (dBW/MHz)                                               46.4

Interference Objectives:    Long Term          -156.0 dBW/MHz        20%              -151.8 dBW/4 kHz          20%
                            Short Term         -146.0 dBW/MHz        0.01%            -130.8 dBW/4 kHz          0.0025%

Frequency Information                          Receive 4.0 GHz                        Transmit 6.1 GHz
Emission / Frequency Range (MHz)               4M30G7W / 3700.0 - 4200.0                  4M30G7W / 5925.0 - 6388.0
                                                                                          4M30G7W / 6421.0 - 6425.0


Max Great Circle Coordination Distance         331.4 km / 205.9 mi                    133.8 km / 83.1 mi
Precipitation Scatter Contour Radius           566.9 km / 352.2 mi                    100.0 km / 62.1 mi




Frequency Coordination and Interference Analysis Report                      01/07/2016               Page 7 of 10


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



Coordination Values             GB 172 SALSA, GM
Licensee Name                     Shell Communications Inc
Latitude (NAD 83)                 27° 50' 25.2" N
Longitude (NAD 83)                91° 59' 15.6" W
Ground Elevation (AMSL)           0.0 m / 0.0 ft
Antenna Centerline (AGL)          60.96 m / 200.0 ft
Antenna Model                     Andrew 2.4 meter
Antenna Mode                             Receive 4.0 GHz                           Transmit 6.1 GHz
Interference Objectives: Long Term       -156.0 dBW/MHz 20%                        -151.8 dBW/4 kHz          20%
                         Short Term      -146.0 dBW/MHz 0.01%                      -130.8 dBW/4 kHz          0.0025%
 Max Available RF Power                                                            -19.6 (dBW/4 kHz)

                                                              Receive 4.0 GHz                          Transmit 6.1 GHz
               Horizon            Antenna                 Horizon        Coordination          Horizon         Coordination
Azimuth (°)    Elevation (°)      Discrimination (°)      Gain (dBi)     Distance (km)         Gain (dBi)      Distance (km)
 0              0.00              108.53                  -10.00          285.28                -10.00         117.58
 5              0.00              112.95                  -10.00          285.28                -10.00         117.58
 10             0.00              109.52                  -10.00          285.28                -10.00         117.58
 15             0.00              105.97                  -10.00          285.28                -10.00         117.58
 20             0.00              102.36                  -10.00          285.28                -10.00         117.58
 25             0.00               98.71                  -10.00          285.28                -10.00         117.58
 30             0.00               95.03                  -10.00          285.28                -10.00         117.58
 35             0.00               91.33                  -10.00          285.28                -10.00         117.58
 40             0.00               87.62                  -10.00          285.28                -10.00         117.58
 45             0.00               83.92                  -10.00          285.28                -10.00         117.58
 50             0.00               80.25                  -10.00          285.28                -10.00         117.58
 55             0.00               76.60                  -10.00          285.28                -10.00         117.58
 60             0.00               73.01                  -10.00          285.28                -10.00         117.58
 65             0.00               69.48                  -10.00          285.28                -10.00         117.58
 70             0.00               66.04                  -10.00          285.28                -10.00         117.58
 75             0.00               62.70                  -10.00          285.28                -10.00         117.58
 80             0.00               59.50                  -10.00          285.28                -10.00         117.58
 85             0.00               56.44                  -10.00          285.28                -10.00         117.58
 90             0.00               53.58                  -10.00          285.28                -10.00         117.58
 95             0.00               50.94                  -10.00          285.28                -10.00         117.58
100             0.00               48.56                  -10.00          285.28                -10.00         117.58
105             0.00               46.50                   -9.69          287.29                 -9.69         118.39
110             0.00               44.78                   -9.28          289.91                 -9.28         119.44
115             0.00               43.47                   -8.96          292.01                 -8.96         120.28
120             0.00               42.59                   -8.73          293.46                 -8.73         120.86
125             0.00               42.18                   -8.63          294.15                 -8.63         121.13
130             0.00               42.25                   -8.65          294.04                 -8.65         121.08
135             0.00               42.80                   -8.79          293.12                 -8.79         120.72
140             0.00               43.80                   -9.04          291.48                 -9.04         120.07
145             0.00               45.23                   -9.39          289.21                 -9.39         119.16
150             0.00               47.05                   -9.81          286.46                 -9.81         118.06
155             0.00               49.21                  -10.00          285.28                -10.00         117.58
160             0.00               51.66                  -10.00          285.28                -10.00         117.58
165             0.00               54.08                  -10.00          285.28                -10.00         117.58
170             0.00               55.93                  -10.00          285.28                -10.00         117.58
175             0.00               57.10                  -10.00          285.28                -10.00         117.58
180             0.00               57.50                  -10.00          285.28                -10.00         117.58
185             0.00               57.10                  -10.00          285.28                -10.00         117.58



Frequency Coordination and Interference Analysis Report                01/07/2016             Page 8 of 10


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



Coordination Values             GB 172 SALSA, GM
Licensee Name                     Shell Communications Inc
Latitude (NAD 83)                 27° 50' 25.2" N
Longitude (NAD 83)                91° 59' 15.6" W
Ground Elevation (AMSL)           0.0 m / 0.0 ft
Antenna Centerline (AGL)          60.96 m / 200.0 ft
Antenna Model                     Andrew 2.4 meter
Antenna Mode                             Receive 4.0 GHz                           Transmit 6.1 GHz
Interference Objectives: Long Term       -156.0 dBW/MHz 20%                        -151.8 dBW/4 kHz          20%
                         Short Term      -146.0 dBW/MHz 0.01%                      -130.8 dBW/4 kHz          0.0025%
 Max Available RF Power                                                            -19.6 (dBW/4 kHz)

                                                              Receive 4.0 GHz                          Transmit 6.1 GHz
               Horizon            Antenna                 Horizon        Coordination          Horizon         Coordination
Azimuth (°)    Elevation (°)      Discrimination (°)      Gain (dBi)     Distance (km)         Gain (dBi)      Distance (km)
190             0.00               55.93                  -10.00          285.28                -10.00         117.58
195             0.00               54.08                  -10.00          285.28                -10.00         117.58
200             0.00               51.66                  -10.00          285.28                -10.00         117.58
205             0.00               48.78                  -10.00          285.28                -10.00         117.58
210             0.00               45.54                   -9.46          288.74                 -9.46         118.97
215             0.00               42.02                   -8.59          294.43                 -8.59         121.24
220             0.00               38.38                   -7.60          300.99                 -7.60         123.81
225             0.00               34.99                   -6.60          307.85                 -6.60         126.45
230             0.00               31.96                   -5.62          315.32                 -5.62         129.06
235             0.00               29.42                   -4.72          321.71                 -4.72         131.46
240             0.00               27.49                   -3.98          326.99                 -3.98         133.44
245             0.00               26.32                   -3.51          330.42                 -3.51         133.47
250             0.00               26.00                   -3.37          331.39                 -3.37         133.83
255             0.00               26.57                   -3.61          329.68                 -3.61         133.19
260             0.00               27.97                   -4.17          325.65                 -4.17         132.93
265             0.00               30.08                   -4.96          319.98                 -4.96         130.81
270             0.00               32.78                   -5.89          313.40                 -5.89         128.33
275             0.00               35.91                   -6.88          305.89                 -6.88         125.70
280             0.00               39.39                   -7.89          299.09                 -7.89         123.07
285             0.00               43.12                   -8.87          292.58                 -8.87         120.51
290             0.00               47.05                   -9.81          286.47                 -9.81         118.06
295             0.00               51.12                  -10.00          285.28                -10.00         117.58
300             0.00               55.30                  -10.00          285.28                -10.00         117.58
305             0.00               59.57                  -10.00          285.28                -10.00         117.58
310             0.00               63.91                  -10.00          285.28                -10.00         117.58
315             0.00               68.30                  -10.00          285.28                -10.00         117.58
320             0.00               72.73                  -10.00          285.28                -10.00         117.58
325             0.00               77.18                  -10.00          285.28                -10.00         117.58
330             0.00               81.66                  -10.00          285.28                -10.00         117.58
335             0.00               86.14                  -10.00          285.28                -10.00         117.58
340             0.00               90.64                  -10.00          285.28                -10.00         117.58
345             0.00               95.13                  -10.00          285.28                -10.00         117.58
350             0.00               99.62                  -10.00          285.28                -10.00         117.58
355             0.00              104.09                  -10.00          285.28                -10.00         117.58




Frequency Coordination and Interference Analysis Report                01/07/2016             Page 9 of 10


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.




BY: _

Gary K. Edwards
Senior Manager
COMSEARCH
19700 Janelia Farm Boulevard
Ashburn, VA 20147


DATED: January 07, 2016




Frequency Coordination and Interference Analysis Report   01/07/2016   Page 10 of 10



Document Created: 2016-01-07 13:26:32
Document Modified: 2016-01-07 13:26:32

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