Attachment Freq coord report

This document pretains to SES-LIC-20130823-00759 for License on a Satellite Earth Station filing.

IBFS_SESLIC2013082300759_1009038

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                     Prepared for
                Saipem America Inc.
               SAIPEM, Gulf of Mexico
                Satellite Earth Station




                     Prepared By:
                    COMSEARCH
             19700 Janelia Farm Boulevard
                 Ashburn, VA 20147
                   August 05, 2013


                                                      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                                             08/05/2013                        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   08/05/2013         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.

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 and frequency
offsets are considered on the interfering paths, sufficient blockage exists to negate
harmful interference from occurring with the proposed transmit-receive earth station.


       Company

       Stratos Offshore Services Company



No other carriers reported potential interference cases.




Frequency Coordination and Interference Analysis Report    08/05/2013         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 08/05/2013.

        Company
        ENERGY XXI LLC
        Greater Lafourche Port Commission
        Plaquemines Parish Government
        Southern Light, LLC
        Stratos Offshore Services Company
        T-MOBILE USA, INC.




Frequency Coordination and Interference Analysis Report                 08/05/2013              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            08/05/2013            Page 6 of 10


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

Date:                                    08/05/2013
Job Number:                              130805COMSGE09
Administrative Information
Status                                   ENGINEER PROPOSAL
Call Sign                                SAIPEM
Licensee Code                            SAIPEM
Licensee Name                            Saipem America Inc.
Site Information                         SAIPEM, GM
Venue Name
Latitude (NAD 83)                        28° 15' 0.0" N
Longitude (NAD 83)                       90° 13' 0.0" W
Climate Zone                             B
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                            34.5° W to 34.5° West Longitude
Azimuth Range                            107.9° to 107.9°
Corresponding Elevation Angles           21.7° / 21.7°
Antenna Centerline (AGL)                 51.51 m / 169.0 ft
Antenna Information                            Receive - FCC32                        Transmit - FCC32
Manufacturer                                   Orbit                                  Orbit
Model                                          AL-7108                                AL-7108
Gain / Diameter                                37.5 dBi / 2.4 m                       40.8 dBi / 2.4 m
3-dB / 15-dB Beamwidth                         2.10° / 5.10°                          1.40° / 3.40°

Max Available RF Power        (dBW/4 kHz)                                             -12.7
                              (dBW/MHz)                                               11.3

Maximum EIRP                  (dBW/4 kHz)                                             28.1
                              (dBW/MHz)                                               52.1

Interference Objectives:    Long Term          -156.0 dBW/MHz        20%              -154.0 dBW/4 kHz        20%
                            Short Term         -146.0 dBW/MHz        0.01%            -131.0 dBW/4 kHz        0.0025%

Frequency Information                          Receive 4.0 GHz                        Transmit 6.1 GHz
Emission / Frequency Range (MHz)               3M55G7D / 3700.0 - 4200.0              3M55G7D / 5925.0 - 6260.0
                                                                                      3M55G7D / 6313.0 - 6425.0


Max Great Circle Coordination Distance         532.8 km / 331.0 mi                    192.5 km / 119.6 mi
Precipitation Scatter Contour Radius           575.5 km / 357.6 mi                    100.0 km / 62.1 mi




Frequency Coordination and Interference Analysis Report                      08/05/2013            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              SAIPEM, GM
Licensee Name                     Saipem America Inc.
Latitude (NAD 83)                 28° 15' 0.0" N
Longitude (NAD 83)                90° 13' 0.0" W
Ground Elevation (AMSL)           0.0 m / 0.0 ft
Antenna Centerline (AGL)          51.51 m / 169.0 ft
Antenna Model                     Orbit 2.4 Meter
Antenna Mode                             Receive 4.0 GHz                           Transmit 6.1 GHz
Interference Objectives: Long Term       -156.0 dBW/MHz      20%                   -154.0 dBW/4 kHz         20%
                         Short Term      -146.0 dBW/MHz      0.01%                 -131.0 dBW/4 kHz         0.0025%
 Max Available RF Power                                                            -12.7 (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              106.58                   -10.00         412.20                -10.00         151.28
  5             0.00              101.96                   -10.00         412.20                -10.00         151.28
 10             0.00               97.33                   -10.00         412.20                -10.00         151.28
 15             0.00               92.68                   -10.00         412.20                -10.00         151.28
 20             0.00               88.04                   -10.00         412.20                -10.00         151.28
 25             0.00               83.39                   -10.00         412.20                -10.00         151.28
 30             0.00               78.75                   -10.00         412.20                -10.00         151.28
 35             0.00               74.13                   -10.00         412.20                -10.00         151.28
 40             0.00               69.52                   -10.00         412.20                -10.00         151.28
 45             0.00               64.94                   -10.00         412.20                -10.00         151.28
 50             0.00               60.39                   -10.00         412.20                -10.00         151.28
 55             0.00               55.89                   -10.00         412.20                -10.00         151.28
 60             0.00               51.45                   -10.00         412.20                -10.00         151.28
 65             0.00               47.08                    -9.82         414.42                 -9.82         152.02
 70             0.00               42.82                    -8.79         427.47                 -8.79         156.39
 75             0.00               38.70                    -7.69         441.87                 -7.69         161.24
 80             0.00               34.77                    -6.53         457.62                 -6.53         166.57
 85             0.00               31.11                    -5.32         473.96                 -5.32         172.35
 90             0.00               27.82                    -4.11         491.65                 -4.11         178.39
 95             0.00               25.05                    -2.97         508.85                 -2.97         184.26
100             0.00               22.99                    -2.04         523.33                 -2.04         189.22
105             0.00               21.85                    -1.49         532.14                 -1.49         192.24
110             0.00               21.77                    -1.45         532.81                 -1.45         192.47
115             0.00               22.75                    -1.93         525.14                 -1.93         189.84
120             0.00               24.68                    -2.81         511.33                 -2.81         185.11
125             0.00               27.35                    -3.93         494.38                 -3.93         179.32
130             0.00               30.57                    -5.13         476.67                 -5.13         173.27
135             0.00               34.19                    -6.35         460.17                 -6.35         167.44
140             0.00               38.08                    -7.52         444.21                 -7.52         162.03
145             0.00               42.18                    -8.63         429.61                 -8.63         157.11
150             0.00               46.42                    -9.67         416.35                 -9.67         152.67
155             0.00               50.77                   -10.00         412.20                -10.00         151.28
160             0.00               55.20                   -10.00         412.20                -10.00         151.28
165             0.00               59.70                   -10.00         412.20                -10.00         151.28
170             0.00               64.24                   -10.00         412.20                -10.00         151.28
175             0.00               68.81                   -10.00         412.20                -10.00         151.28
180             0.00               73.42                   -10.00         412.20                -10.00         151.28
185             0.00               78.04                   -10.00         412.20                -10.00         151.28



Frequency Coordination and Interference Analysis Report                08/05/2013             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              SAIPEM, GM
Licensee Name                     Saipem America Inc.
Latitude (NAD 83)                 28° 15' 0.0" N
Longitude (NAD 83)                90° 13' 0.0" W
Ground Elevation (AMSL)           0.0 m / 0.0 ft
Antenna Centerline (AGL)          51.51 m / 169.0 ft
Antenna Model                     Orbit 2.4 Meter
Antenna Mode                             Receive 4.0 GHz                           Transmit 6.1 GHz
Interference Objectives: Long Term       -156.0 dBW/MHz      20%                   -154.0 dBW/4 kHz         20%
                         Short Term      -146.0 dBW/MHz      0.01%                 -131.0 dBW/4 kHz         0.0025%
 Max Available RF Power                                                            -12.7 (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               82.67                   -10.00         412.20                -10.00         151.28
195             0.00               87.32                   -10.00         412.20                -10.00         151.28
200             0.00               91.96                   -10.00         412.20                -10.00         151.28
205             0.00               96.61                   -10.00         412.20                -10.00         151.28
210             0.00              101.25                   -10.00         412.20                -10.00         151.28
215             0.00              105.87                   -10.00         412.20                -10.00         151.28
220             0.00              110.48                   -10.00         412.20                -10.00         151.28
225             0.00              115.06                   -10.00         412.20                -10.00         151.28
230             0.00              119.61                   -10.00         412.20                -10.00         151.28
235             0.00              124.11                   -10.00         412.20                -10.00         151.28
240             0.00              128.55                   -10.00         412.20                -10.00         151.28
245             0.00              132.92                   -10.00         412.20                -10.00         151.28
250             0.00              137.18                   -10.00         412.20                -10.00         151.28
255             0.00              141.30                   -10.00         412.20                -10.00         151.28
260             0.00              145.23                   -10.00         412.20                -10.00         151.28
265             0.00              148.89                   -10.00         412.20                -10.00         151.28
270             0.00              152.18                   -10.00         412.20                -10.00         151.28
275             0.00              154.95                   -10.00         412.20                -10.00         151.28
280             0.00              157.01                   -10.00         412.20                -10.00         151.28
285             0.00              158.15                   -10.00         412.20                -10.00         151.28
290             0.00              158.23                   -10.00         412.20                -10.00         151.28
295             0.00              157.25                   -10.00         412.20                -10.00         151.28
300             0.00              155.32                   -10.00         412.20                -10.00         151.28
305             0.00              152.65                   -10.00         412.20                -10.00         151.28
310             0.00              149.43                   -10.00         412.20                -10.00         151.28
315             0.00              145.81                   -10.00         412.20                -10.00         151.28
320             0.00              141.92                   -10.00         412.20                -10.00         151.28
325             0.00              137.82                   -10.00         412.20                -10.00         151.28
330             0.00              133.58                   -10.00         412.20                -10.00         151.28
335             0.00              129.23                   -10.00         412.20                -10.00         151.28
340             0.00              124.80                   -10.00         412.20                -10.00         151.28
345             0.00              120.30                   -10.00         412.20                -10.00         151.28
350             0.00              115.76                   -10.00         412.20                -10.00         151.28
355             0.00              111.19                   -10.00         412.20                -10.00         151.28




Frequency Coordination and Interference Analysis Report                08/05/2013             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: August 05, 2013




Frequency Coordination and Interference Analysis Report   08/05/2013   Page 10 of 10



Document Created: 2013-08-05 14:56:33
Document Modified: 2013-08-05 14:56:33

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