Attachment Coordination report

This document pretains to SES-LIC-20170503-00493 for License on a Satellite Earth Station filing.

IBFS_SESLIC2017050300493_1212886

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                     Prepared for
                North Slope Borough
                   POINT LAY, AK
                Satellite Earth Station




                     Prepared By:
                    COMSEARCH
             19700 Janelia Farm Boulevard
                 Ashburn, VA 20147
                    May 02, 2017


                                                      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                                             05/02/2017                        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   05/02/2017         Page 3 of 10


2. SUMMARY OF RESULTS


No great circle interference cases were identified during the interference study of the
proposed earth station.




Frequency Coordination and Interference Analysis Report   05/02/2017      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 04/12/2017.

        Company
        GCI Communications Corp.
        Teck Alaska Incorporated
        Unicom, Inc.




Frequency Coordination and Interference Analysis Report                 05/02/2017              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            05/02/2017            Page 6 of 10


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

Date:                                    05/02/2017
Job Number:                              170412COMSGE05
Administrative Information
Status                                   ENGINEER PROPOSAL
Call Sign
Licensee Code                            NORSLO
Licensee Name                            North Slope Borough
Site Information                         POINT LAY, AK
Venue Name
Latitude (NAD 83)                        69° 44' 31.3" N
Longitude (NAD 83)                       163° 0' 35.2" W
Climate Zone                             B
Rain Zone                                2
Ground Elevation (AMSL)                  1.9 m / 6.2 ft
Link Information
Satellite Type                           Geostationary
Mode                                     TR - Transmit-Receive
Modulation                               Digital
Satellite Arc                            114.9° W to 209° West Longitude
Azimuth Range                            130.1° to 227.8°
Corresponding Elevation Angles           4.7° / 5.3°
Antenna Centerline (AGL)                 3.35 m / 11.0 ft
Antenna Information                            Receive - FCC32                        Transmit - FCC32
Manufacturer                                   General Dynamics                       General Dynamics
Model                                          1244                                   1244
Gain / Diameter                                38.0 dBi / 2.4 m                       42.0 dBi / 2.4 m
3-dB / 15-dB Beamwidth                         2.30° / 4.60°                          1.40° / 3.10°

Max Available RF Power        (dBW/4 kHz)                                             -12.6
                              (dBW/MHz)                                               11.4

Maximum EIRP                  (dBW/4 kHz)                                             29.4
                              (dBW/MHz)                                               53.4

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)               240KG7W - 680KG7W / 3700.0 - 4200.0    240KG7W - 680KG7W / 5925.0 - 6425.0


Max Great Circle Coordination Distance         867.2 km / 538.8 mi                    304.0 km / 188.9 mi
Precipitation Scatter Contour Radius           631.1 km / 392.1 mi                    100.0 km / 62.1 mi




Frequency Coordination and Interference Analysis Report                      05/02/2017            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              POINT LAY, AK
Licensee Name                    North Slope Borough
Latitude (NAD 83)                69° 44' 31.3" N
Longitude (NAD 83)               163° 0' 35.2" W
Ground Elevation (AMSL)          1.9 m / 6.2 ft
Antenna Centerline (AGL)         3.35 m / 11.0 ft
Antenna Model                    General Dynamics 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                                                              -12.6 (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                 129.92                 -10.00         412.20                -10.00         151.57
 5               0.00                 124.95                 -10.00         412.20                -10.00         151.57
 10              0.00                 119.97                 -10.00         412.20                -10.00         151.57
 15              0.00                 114.99                 -10.00         412.20                -10.00         151.57
 20              0.00                 110.01                 -10.00         412.20                -10.00         151.57
 25              0.00                 105.03                 -10.00         412.20                -10.00         151.57
 30              0.00                 100.05                 -10.00         412.20                -10.00         151.57
 35              0.00                  95.06                 -10.00         412.20                -10.00         151.57
 40              0.00                  90.08                 -10.00         412.20                -10.00         151.57
 45              0.00                  85.10                 -10.00         412.20                -10.00         151.57
 50              0.00                  80.12                 -10.00         412.20                -10.00         151.57
 55              0.00                  75.13                 -10.00         412.20                -10.00         151.57
 60              0.00                  70.15                 -10.00         412.20                -10.00         151.57
 65              0.00                  65.17                 -10.00         412.20                -10.00         151.57
 70              0.00                  60.19                 -10.00         412.20                -10.00         151.57
 75              0.00                  55.22                 -10.00         412.20                -10.00         151.57
 80              0.00                  50.24                 -10.00         412.20                -10.00         151.57
 85              0.00                  45.27                  -9.40         419.76                 -9.40         154.10
 90              0.00                  40.31                  -8.14         436.02                 -8.14         159.57
 95              0.00                  35.36                  -6.71         455.14                 -6.71         166.06
100              0.00                  30.41                  -5.08         477.50                 -5.08         173.90
105              0.00                  25.49                  -3.16         505.96                 -3.16         183.64
110              0.00                  20.60                  -0.85         542.48                 -0.85         196.55
115              0.00                  15.78                   2.05         591.60                  2.05         213.31
120              0.00                  11.11                   5.85         661.42                  5.85         237.03
125              0.00                   6.92                  11.00         768.06                 11.00         270.69
130              0.00                   4.70                  15.20         867.18                 15.20         304.00
135              0.00                   5.82                  12.88         810.35                 12.88         285.05
140              0.00                   6.98                  10.90         765.72                 10.90         269.90
145              0.00                   8.05                   9.35         732.47                  9.35         258.86
150              0.00                   9.00                   8.15         707.23                  8.15         252.20
155              0.00                   9.82                   7.20         687.97                  7.20         245.84
160              0.00                  10.50                   6.47         673.43                  6.47         241.02
165              0.00                  11.04                   5.93         662.79                  5.93         237.48
170              0.00                  11.43                   5.55         655.51                  5.55         235.05
175              0.00                  11.66                   5.33         651.26                  5.33         233.63
180              0.00                  11.74                   5.25         649.86                  5.25         233.17
185              0.00                  11.67                   5.33         651.25                  5.33         233.63



Frequency Coordination and Interference Analysis Report                  05/02/2017             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              POINT LAY, AK
Licensee Name                    North Slope Borough
Latitude (NAD 83)                69° 44' 31.3" N
Longitude (NAD 83)               163° 0' 35.2" W
Ground Elevation (AMSL)          1.9 m / 6.2 ft
Antenna Centerline (AGL)         3.35 m / 11.0 ft
Antenna Model                    General Dynamics 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                                                              -12.6 (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                  11.43                   5.55         655.48                  5.55         235.04
195              0.00                  11.04                   5.92         662.75                  5.92         237.47
200              0.00                  10.50                   6.47         673.39                  6.47         241.01
205              0.00                   9.82                   7.20         687.94                  7.20         245.83
210              0.00                   9.00                   8.14         707.23                  8.14         252.20
215              0.00                   8.05                   9.36         732.55                  9.36         258.89
220              0.00                   6.98                  10.91         765.97                 10.91         269.99
225              0.00                   5.80                  12.91         811.00                 12.91         285.28
230              0.00                   5.69                  13.11         815.65                 13.11         286.87
235              0.00                   8.90                   8.27         709.77                  8.27         253.03
240              0.00                  13.26                   3.94         625.73                  3.94         224.86
245              0.00                  17.95                   0.65         567.39                  0.65         205.07
250              0.00                  22.77                  -1.93         525.01                 -1.93         190.17
255              0.00                  27.65                  -4.04         492.62                 -4.04         179.07
260              0.00                  32.57                  -5.82         466.90                 -5.82         170.28
265              0.00                  37.50                  -7.35         446.44                 -7.35         163.10
270              0.00                  42.45                  -8.70         428.69                 -8.70         157.10
275              0.00                  47.41                  -9.90         413.48                 -9.90         152.00
280              0.00                  52.37                 -10.00         412.20                -10.00         151.57
285              0.00                  57.34                 -10.00         412.20                -10.00         151.57
290              0.00                  62.31                 -10.00         412.20                -10.00         151.57
295              0.00                  67.29                 -10.00         412.20                -10.00         151.57
300              0.00                  72.27                 -10.00         412.20                -10.00         151.57
305              0.00                  77.24                 -10.00         412.20                -10.00         151.57
310              0.00                  82.22                 -10.00         412.20                -10.00         151.57
315              0.00                  87.20                 -10.00         412.20                -10.00         151.57
320              0.00                  92.18                 -10.00         412.20                -10.00         151.57
325              0.00                  97.16                 -10.00         412.20                -10.00         151.57
330              0.00                 102.14                 -10.00         412.20                -10.00         151.57
335              0.00                 107.11                 -10.00         412.20                -10.00         151.57
340              0.00                 112.09                 -10.00         412.20                -10.00         151.57
345              0.00                 117.06                 -10.00         412.20                -10.00         151.57
350              0.00                 122.04                 -10.00         412.20                -10.00         151.57
355              0.00                 127.00                 -10.00         412.20                -10.00         151.57




Frequency Coordination and Interference Analysis Report                  05/02/2017             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: May 02, 2017




Frequency Coordination and Interference Analysis Report   05/02/2017   Page 10 of 10



Document Created: 2017-05-02 10:01:08
Document Modified: 2017-05-02 10:01:08

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