Attachment coordination

This document pretains to SES-REG-INTR2018-02809 for Earth Station Registration on a Satellite Earth Station filing.

IBFS_SESREGINTR201802809_1424104

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                         Prepared for
           Evangelistic Alaska Mission Fellowship
                     NORTH POLE, AK
                   Satellite Earth Station




                        Prepared By:
                       COMSEARCH
                19700 Janelia Farm Boulevard
                    Ashburn, VA 20147
                       June 14, 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                                             06/14/2018                        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   06/14/2018         Page 3 of 10


2. SUMMARY OF RESULTS


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




Frequency Coordination and Interference Analysis Report   06/14/2018        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 on 06/14/2018.




Frequency Coordination and Interference Analysis Report            06/14/2018            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            06/14/2018            Page 6 of 10


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

Date:                                    06/14/2018
Job Number:                              180614COMSTC12
Administrative Information
Licensee Code                            EVAALA
Licensee Name                            Evangelistic Alaska Mission Fellowship
Site Information                         NORTH POLE, AK
Venue Name                               STUDIO
Latitude (NAD 83)                        64° 45' 31.0" N
Longitude (NAD 83)                       147° 19' 35.9" W
Climate Zone                             A
Rain Zone                                2
Ground Elevation (AMSL)                  145.98 m / 479.0 ft
Link Information
Satellite Type                           Geostationary
Mode                                     RO - Receive-Only
Modulation                               Digital
Satellite Arc                            91° W to 143° West Longitude
Azimuth Range                            121.1° to 175.2°
Corresponding Elevation Angles           5.0° / 16.8°
Antenna Centerline (AGL)                 4.0 m / 13.1 ft
Antenna Information                            Receive - V40611
Manufacturer                                   VERTEX COMMUNICATIONS
Model                                          6.1 KPC
Gain / Diameter                                46.5 dBi / 6.1 m
3-dB / 15-dB Beamwidth                         0.85° / 1.70°

Interference Objectives:    Long Term          -156.0 dBW/MHz          20%
                            Short Term         -146.0 dBW/MHz          0.01%
Frequency Information                          Receive 4.0 GHz
Emission / Frequency Range (MHz)               36M0G7W / 3700.0 - 4200.0


Max Great Circle Coordination Distance         621.3 km / 386.0 mi
Precipitation Scatter Contour Radius           619.8 km / 385.1 mi




Frequency Coordination and Interference Analysis Report                        06/14/2018      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              NORTH POLE, AK
Licensee Name                     Evangelistic Alaska Mission Fellowship
Latitude (NAD 83)                 64° 45' 31.0" N
Longitude (NAD 83)                147° 19' 35.9" W
Ground Elevation (AMSL)           145.98 m / 479.0 ft
Antenna Centerline (AGL)          4.0 m / 13.1 ft
Antenna Model                     VERTEX COMMUNICATIONS 6.1 KPC
Antenna Mode                             Receive 4.0 GHz
Interference Objectives: Long Term       -156.0 dBW/MHz 20%
                         Short Term      -146.0 dBW/MHz 0.01%

                                                              Receive 4.0 GHz
               Horizon             Antenna                Horizon        Coordination
Azimuth (°)    Elevation (°)       Discrimination (°)     Gain (dBi)     Distance (km)
 0              0.00               120.95                 -20.69          226.42
 5              0.00               115.97                 -20.50          227.30
 10             0.00               110.99                 -19.70          231.07
 15             0.00               106.01                 -18.70          235.90
 20             0.00               101.03                 -17.71          240.91
 25             0.00                96.05                 -15.92          250.42
 30             0.00                91.07                 -13.14          266.08
 35             0.00                86.09                 -10.94          279.39
 40             0.00                81.11                 -10.50          282.12
 45             0.00                76.13                 -10.50          282.12
 50             0.00                71.15                 -10.50          282.12
 55             0.00                66.17                 -10.50          282.12
 60             0.00                61.20                 -10.50          282.12
 65             0.00                56.22                 -10.50          282.12
 70             0.00                51.25                 -10.50          282.12
 75             0.00                46.29                 -10.50          282.12
 80             0.00                41.33                 -10.50          282.12
 85             0.00                36.38                 -10.50          282.12
 90             0.00                31.44                 -10.50          282.12
 95             0.00                26.52                 -10.50          282.12
100             0.00                21.64                 -10.50          282.12
105             0.00                16.82                  -9.23          290.24
110             0.00                12.15                  -7.50          301.68
115             0.21                 7.74                  -3.50          329.62
120             0.54                 4.60                  -0.70          621.29
125             0.72                 5.41                  -1.91          526.52
130             0.00                 7.81                  -3.50          453.60
135             0.00                 9.41                  -4.91          385.17
140             0.00                10.89                  -6.39          329.00
145             0.00                12.24                  -7.50          301.68
150             0.00                13.44                  -7.94          298.74
155             0.00                14.48                  -8.50          295.00
160             0.00                15.34                  -8.64          294.10
165             0.00                16.03                  -8.91          292.30
170             0.00                16.52                  -9.11          291.01
175             0.00                16.82                  -9.23          290.23
180             0.00                17.49                  -9.50          288.51
185             0.00                19.40                 -10.26          283.62




Frequency Coordination and Interference Analysis Report                06/14/2018        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              NORTH POLE, AK
Licensee Name                     Evangelistic Alaska Mission Fellowship
Latitude (NAD 83)                 64° 45' 31.0" N
Longitude (NAD 83)                147° 19' 35.9" W
Ground Elevation (AMSL)           145.98 m / 479.0 ft
Antenna Centerline (AGL)          4.0 m / 13.1 ft
Antenna Model                     VERTEX COMMUNICATIONS 6.1 KPC
Antenna Mode                             Receive 4.0 GHz
Interference Objectives: Long Term       -156.0 dBW/MHz 20%
                         Short Term      -146.0 dBW/MHz 0.01%

                                                              Receive 4.0 GHz
               Horizon             Antenna                Horizon        Coordination
Azimuth (°)    Elevation (°)       Discrimination (°)     Gain (dBi)     Distance (km)
190             0.00                22.26                 -10.50          282.12
195             0.00                25.76                 -10.50          282.12
200             0.00                29.66                 -10.50          282.12
205             0.00                33.83                 -10.50          282.12
210             0.00                38.17                 -10.50          282.12
215             0.00                42.65                 -10.50          282.12
220             0.00                47.20                 -10.50          282.12
225             0.00                51.83                 -10.50          282.12
230             0.00                56.50                 -10.50          282.12
235             0.00                61.20                 -10.50          282.12
240             0.00                65.93                 -10.50          282.12
245             0.00                70.68                 -10.50          282.12
250             0.00                75.45                 -10.50          282.12
255             0.00                80.22                 -10.50          282.12
260             0.00                85.00                 -10.50          282.11
265             0.00                89.79                 -12.42          270.39
270             0.00                94.57                 -15.24          254.13
275             0.00                99.36                 -17.24          243.30
280             0.00               104.13                 -18.33          237.77
285             0.00               108.90                 -19.28          233.08
290             0.00               113.65                 -20.23          228.55
295             0.00               118.38                 -20.50          227.30
300             0.00               123.09                 -21.12          224.47
305             0.00               127.76                 -21.50          222.75
310             0.00               132.39                 -21.50          222.75
315             0.00               136.95                 -21.89          221.01
320             0.00               141.43                 -22.50          218.37
325             0.00               145.79                 -22.50          218.37
330             0.00               149.98                 -22.50          218.37
335             0.00               145.75                 -22.50          218.37
340             0.00               140.81                 -22.50          218.37
345             0.00               135.85                 -21.67          221.99
350             0.00               130.89                 -21.50          222.75
355             0.00               125.92                 -21.50          222.75




Frequency Coordination and Interference Analysis Report                06/14/2018        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: June 14, 2018




Frequency Coordination and Interference Analysis Report   06/14/2018   Page 10 of 10



Document Created: 2018-06-14 09:52:51
Document Modified: 2018-06-14 09:52:51

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