Attachment Exhibit 2

This document pretains to SES-LIC-INTR2018-02449 for License on a Satellite Earth Station filing.

IBFS_SESLICINTR201802449_1416031

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                    Prepared for
             GCI Communications Corp.
                   CHEVAK, AK
               Satellite Earth Station




                     Prepared By:
                    COMSEARCH
             19700 Janelia Farm Boulevard
                 Ashburn, VA 20147
                    May 30, 2018


                                                      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                                             05/30/2018                        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   05/30/2018         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 several cases. There are two cases that were cleared
by agreement between United2, LLC and GCI Communications Corp.


The following companies reported potential great circle interference conflicts that did not
meet the objectives on a line-of-sight basis.
       Company

       United2, LLC



No other carriers reported potential interference cases.




Frequency Coordination and Interference Analysis Report     05/30/2018          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 04/27/2018.

        Company
        United Utilities, Inc.
        United2, LLC




Frequency Coordination and Interference Analysis Report                 05/30/2018              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            05/30/2018            Page 6 of 10


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

Date:                                    05/30/2018
Job Number:                              180427COMSTC06
Administrative Information
Licensee Code                            P3203
Licensee Name                            GCI Communications Corp.
Site Information                         CHEVAK, AK
Latitude (NAD 83)                        61° 31' 47.8" N
Longitude (NAD 83)                       165° 34' 51.1" W
Climate Zone                             B
Rain Zone                                2
Ground Elevation (AMSL)                  13.41 m / 44.0 ft
Link Information
Satellite Type                           Geostationary
Mode                                     TR - Transmit-Receive
Modulation                               Digital
Satellite Arc                            91° W to 194° West Longitude
Azimuth Range                            103.6° to 211.6°
Corresponding Elevation Angles           -1.4° / 16.4°
Antenna Centerline (AGL)                 2.13 m / 7.0 ft
Antenna Information                            Receive - S40362                           Transmit - S60362
Manufacturer                                   SCIENTIFIC-ATLANTA, INC                    SCIENTIFIC-ATLANTA, INC
Model                                          8136                                       8136
Gain / Diameter                                41.8 dBi / 3.6 m                           45.6 dBi / 3.6 m
3-dB / 15-dB Beamwidth                         1.40° / 3.00°                              0.90° / 1.70°

Max Available RF Power        (dBW/4 kHz)                                                 -2.7
                              (dBW/MHz)                                                   21.3

Maximum EIRP                  (dBW/4 kHz)                                                 42.9
                              (dBW/MHz)                                                   66.9
                              (dBW)                                                       0.0

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)               45K0G7W - 72M0G7W / 3700.0 - 4200.0        45K0G7W - 72M0G7W / 5925.0 - 6425.0
                                               45K0D7W - 72M0D7W / 3700.0 - 4200.0        45K0D7W - 72M0D7W / 5925.0 - 6425.0


Max Great Circle Coordination Distance         1385.0 km / 860.5 mi                       714.6 km / 444.0 mi
Precipitation Scatter Contour Radius           1141.6 km / 709.2 mi                       123.4 km / 76.7 mi




Frequency Coordination and Interference Analysis Report                          05/30/2018              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             CHEVAK, AK
Licensee Name                     GCI Communications Corp.
Latitude (NAD 83)                 61° 31' 47.8" N
Longitude (NAD 83)                165° 34' 51.1" W
Ground Elevation (AMSL)           13.41 m / 44.0 ft
Antenna Centerline (AGL)          2.13 m / 7.0 ft
Antenna Model                     SCIENTIFIC-ATLANTA, INC 8136
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                                                         -2.7 (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              2.62              103.60                  -10.20         175.92             -10.40         100.00
 5              2.21               98.61                  -10.20         190.28             -10.40         100.00
 10             2.21               93.62                  -10.20         190.27             -10.40         100.00
 15             1.81               88.63                  -10.20         207.76             -10.40         102.68
 20             1.81               83.64                  -10.20         207.74             -10.40         102.68
 25             1.81               78.65                  -10.20         207.74             -10.40         102.68
 30             2.74               73.68                  -10.20         171.87             -10.40         100.00
 35             2.74               68.69                  -10.20         171.87             -10.40         100.00
 40             2.58               63.70                  -10.20         177.32             -10.40         100.00
 45             2.58               58.72                  -10.20         177.32             -10.40         100.00
 50             0.63               53.66                  -10.20         299.53             -10.40         142.40
 55             0.63               48.66                   -9.93         301.91             -10.13         143.46
 60             0.00               43.65                   -8.93         425.70              -9.13         205.78
 65             0.00               38.65                   -7.66         442.29              -7.86         213.26
 70             0.00               33.66                   -5.93         465.34              -6.13         223.80
 75             0.00               28.66                   -4.67         483.46              -4.87         231.76
 80             0.00               23.67                   -2.40         517.65              -2.60         246.50
 85             0.00               18.68                    0.59         566.41               0.39         265.49
 90             0.00               13.70                    3.10         610.35               3.90         292.35
 95             0.00                8.75                    7.80         700.16               7.60         324.18
100             0.00                3.90                   14.21          843.76             14.01         387.71
105             0.00                0.65                   34.40         1385.01             34.20         714.57
110             0.00                1.65                   23.93         1086.79             23.73         507.04
115             0.00                3.83                   14.48          850.07             14.28         390.64
120             0.00                5.95                    9.90         744.09               9.70         343.32
125             0.00                7.99                    7.80         700.16               7.60         324.18
130             0.00                9.93                    6.87         681.42               6.67         315.86
135             0.00               11.74                    5.06         646.16               4.86         300.29
140             0.00               13.42                    3.38         615.43               4.18         294.63
145             0.00               14.96                    2.80         605.00               2.64         282.36
150             0.00               16.33                    2.00         590.84               1.80         275.93
155             0.00               17.51                    1.29         578.42               1.09         270.61
160             0.00               18.50                    0.70         568.23               0.50         266.26
165             0.00               19.29                    0.23         560.28               0.03         262.89
170             0.00               19.86                   -0.11         554.57              -0.31         260.48
175             0.00               20.20                   -0.32         551.11              -0.52         259.02
180             0.00               20.32                   -0.39         549.95              -0.59         258.53
185             0.00               20.20                   -0.32         551.13              -0.52         259.03




Frequency Coordination and Interference Analysis Report                05/30/2018         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             CHEVAK, AK
Licensee Name                     GCI Communications Corp.
Latitude (NAD 83)                 61° 31' 47.8" N
Longitude (NAD 83)                165° 34' 51.1" W
Ground Elevation (AMSL)           13.41 m / 44.0 ft
Antenna Centerline (AGL)          2.13 m / 7.0 ft
Antenna Model                     SCIENTIFIC-ATLANTA, INC 8136
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                                                            -2.7 (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               19.86                   -0.11          554.57                -0.31         260.48
195             0.00               19.29                    0.23          560.26                 0.03         262.88
200             0.00               18.51                    0.70          568.20                 0.50         266.25
205             0.00               17.52                    1.29          578.39                 1.09         270.59
210             0.00               16.52                    1.89          588.76                 1.69         275.04
215             0.00               16.78                    1.73          586.04                 1.53         273.87
220             0.00               18.41                    0.75          569.20                 0.55         266.67
225             0.00               21.09                   -0.85          542.38                -1.05         256.98
230             0.00               24.48                   -2.89          510.13                -3.09         243.29
235             0.92               27.83                   -4.33          310.60                -4.53         145.63
240             0.92               32.05                   -5.61          298.91                -5.81         140.47
245             0.92               36.44                   -6.78          288.67                -6.98         136.06
250             0.92               40.96                   -8.39          275.18                -8.59         130.33
255             0.92               45.56                   -9.31          267.85                -9.51         127.26
260             2.58               49.85                  -10.17          177.48               -10.37         100.00
265             2.58               54.62                  -10.20          177.32               -10.40         100.00
270             2.58               59.41                  -10.20          177.32               -10.40         100.00
275             2.58               64.22                  -10.20          177.32               -10.40         100.00
280             2.58               69.05                  -10.20          177.31               -10.40         100.00
285             2.58               73.89                  -10.20          177.31               -10.40         100.00
290             2.90               78.71                  -10.20          166.64               -10.40         100.00
295             2.90               83.57                  -10.20          166.65               -10.40         100.00
300             2.90              88.43                   -10.20          166.65               -10.40         100.00
305             2.90               93.29                  -10.20          166.65               -10.40         100.00
310             2.90               98.15                  -10.20          166.65               -10.40         100.00
315             3.02              103.02                  -10.20          162.96               -10.40         100.00
320             3.02              107.87                  -10.20          162.95               -10.40         100.00
325             2.94              112.70                  -10.20          165.36               -10.40         100.00
330             2.94              117.53                  -10.20          165.36               -10.40         100.00
335             2.94              122.35                  -10.20          165.36               -10.40         100.00
340             2.62              123.54                  -10.20          175.93               -10.40         100.00
345             2.62              118.55                  -10.20          175.95               -10.40         100.00
350             2.62              113.57                  -10.20          175.95               -10.40         100.00
355             2.62              108.58                  -10.20          175.95               -10.40         100.00




Frequency Coordination and Interference Analysis Report                05/30/2018            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.




Timothy O. Crutcher
Frequency Planner
COMSEARCH
19700 Janelia Farm Boulevard
Ashburn, VA 20147


DATED: May 30, 2018




Frequency Coordination and Interference Analysis Report   05/30/2018   Page 10 of 10



Document Created: 2018-06-01 12:58:29
Document Modified: 2018-06-01 12:58:29

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