Attachment Comsearch Report

This document pretains to SES-AMD-INTR2019-01046 for Amended Filing on a Satellite Earth Station filing.

IBFS_SESAMDINTR201901046_1648372

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                    Prepared for
             Space Exploration Holdings
                   CONRAD, MT
               Satellite Earth Station




                     Prepared By:
                    COMSEARCH
             19700 Janelia Farm Boulevard
                 Ashburn, VA 20147
                    March 22, 2019


                                                      TABLE OF CONTENTS
1. CONCLUSIONS ............................................................................................................................................ 3
2. SUMMARY OF RESULTS ............................................................................................................................ 4
3. SUPPLEMENTAL SHOWING ....................................................................................................................... 5
4. EARTH STATION COORDINATION DATA .................................................................................................. 7
5. CERTIFICATION ......................................................................................................................................... 11




Frequency Coordination and Interference Analysis Report                                             03/22/2019                        Page 2 of 11


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.




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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.




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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 02/21/2019.

        Company
        3 Rivers Communications
        AC BidCO LLC
        AT&T Mobility Spectrum LLC - ID, MT, WY
        AT&T Mobility Spectrum-MN/IA/ND/NE/MT/SD
        Big Sky Internet, Inc.
        Blackfoot Communications, Inc.
        Centric Internet Services
        Cowles Montana Media (KHQ, Inc.)
        Gallatin County 911 Communications
        Gallatin Wireless Internet, LLC
        Global Net, Inc.
        Gold Creek Cellular of Montana LP
        Granite County Sheriffs Department
        Grizzly Broadband, LLC
        Hellfire, LLC
        Jefferson, County of
        Lewis & Clark County
        Lewis and Clark County Sheriff's Office
        Little Apple Technologies, LLC
        Missoula, City of
        Montana Internet Corporation
        Montana State University
        Montana West
        MontanaSky Networks, Inc.
        New Cingular Wireless PCS LLC - Montana
        NorthWestern Corporation
        Omnicom Paging Plus LLC
        Qwest Corporation
        RF Wave LLC
        Rocky Mountain Internet Inc
        Ronan Telephone Co
        SpeedConnect, LLC
        Sprint Spectrum L.P.
        State of Montana
        T-Mobile License LLC
        The University of Montana
        Trouser, LLC
        Truphone, Inc
        Verizon Wireless (VAW) LLC -CO/ID/MT/WY
        Vision Net, Inc




Frequency Coordination and Interference Analysis Report                 03/22/2019              Page 5 of 11


Frequency Coordination and Interference Analysis Report   03/22/2019   Page 6 of 11


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            03/22/2019            Page 7 of 11


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

Date:                                    03/22/2019
Job Number:                              190221COMSGE08
Administrative Information
Status                                   ENGINEER PROPOSAL
Call Sign
Licensee Code                            SPACEX
Licensee Name                            Space Exploration Holdings

Site Information                         CONRAD, MT
Venue Name
Latitude (NAD 83)                        48° 12' 11.9" N
Longitude (NAD 83)                       111° 56' 43.0" W
Climate Zone                             A
Rain Zone                                5
Ground Elevation (AMSL)                  1058.97 m / 3474.3 ft

Link Information
Satellite Type                           Low Earth Orbit
Mode                                     TR - Transmit-Receive
Modulation                               Digital
Minimum Elevation Angle                  25.0°
Azimuth Range                            0.0° to 360°
Antenna Centerline (AGL)                 0.91 m / 3.0 ft

Antenna Information                            Receive - FCC32                        Transmit - FCC32
Manufacturer                                   Cobham                                 Cobham
Model                                          MK3 series                             MK3 series
Gain / Diameter                                39.3 dBi / 1.0 m                       40.1 dBi / 1.0 m
3-dB / 15-dB Beamwidth                         1.50° / 3.40°                          1.20° / 2.80°

Max Available RF Power        (dBW/4 kHz)                                             -1.2
                              (dBW/MHz)                                               22.8

Maximum EIRP                  (dBW/4 kHz)                                             38.9
                              (dBW/MHz)                                               62.9

Interference Objectives:    Long Term          -156.0 dBW/MHz        20%              -151.0 dBW/4 kHz       20%
                            Short Term         -146.0 dBW/MHz        0.01%            -128.0 dBW/4 kHz       0.0025%

Frequency Information                          Receive 11.0 GHz                       Transmit 14.0 GHz
Emission / Frequency Range (MHz)               240MD7W / 10700.0 - 12700.0            62M5D7W - 240MD7W / 14000.0 - 14500.0


Max Great Circle Coordination Distance         265.5 km / 165.0 mi                    202.3 km / 125.7 mi
Precipitation Scatter Contour Radius           355.1 km / 220.6 mi                    100.0 km / 62.1 mi




Frequency Coordination and Interference Analysis Report                      03/22/2019            Page 8 of 11


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


Coordination Values              CONRAD, MT
Licensee Name                    Space Exploration Holdings
Latitude (NAD 83)                48° 12' 11.9" N
Longitude (NAD 83)               111° 56' 43.0" W
Ground Elevation (AMSL)          1058.97 m / 3474.3 ft
Antenna Centerline (AGL)         0.91 m / 3.0 ft
Antenna Model                    Cobham 1 meter
Antenna Mode                               Receive 11.0 GHz                          Transmit 14.0 GHz
Interference Objectives: Long Term         -156.0 dBW/MHz 20%                        -151.0 dBW/4 kHz          20%
                         Short Term        -146.0 dBW/MHz 0.01%                      -128.0 dBW/4 kHz          0.0025%
 Max Available RF Power                                                              -1.2 (dBW/4 kHz)

                                                                Receive 11.0 GHz                         Transmit 14.0 GHz
               Horizon                Antenna               Horizon        Coordination          Horizon         Coordination
Azimuth (°)    Elevation (°)          Discrimination (°)    Gain (dBi)     Distance (km)         Gain (dBi)      Distance (km)
 0               0.00                 74.58                  -5.50          265.50                -5.50          202.30
 5               0.00                 70.00                  -5.50          265.50                -5.50          202.30
 10              0.00                 65.45                  -5.50          265.50                -5.50          202.30
 15              0.00                 60.93                  -5.50          265.50                -5.50          202.30
 20              0.00                 56.46                  -5.50          265.50                -5.50          202.30
 25              0.00                 52.05                  -5.50          265.50                -5.50          202.30
 30              0.00                 47.72                  -5.50          265.50                -5.50          202.30
 35              0.00                 43.50                  -5.50          265.50                -5.50          202.30
 40              0.00                 39.42                  -5.50          265.50                -5.50          202.30
 45              0.00                 35.53                  -5.50          265.50                -5.50          202.30
 50              0.00                 31.91                  -5.50          265.50                -5.50          202.30
 55              0.00                 28.66                  -5.50          265.50                -5.50          202.30
 60              0.00                 25.92                  -5.50          265.50                -5.50          202.30
 65              0.00                 23.86                  -5.50          265.50                -5.50          202.30
 70              0.00                 22.69                  -5.50          265.50                -5.50          202.30
 75              0.00                 22.52                  -5.50          265.50                -5.50          202.30
 80              0.00                 23.39                  -5.50          265.50                -5.50          202.30
 85              0.00                 25.19                  -5.50          265.50                -5.50          202.30
 90              0.00                 27.74                  -5.50          265.50                -5.50          202.30
 95              0.00                 30.84                  -5.50          265.50                -5.50          202.30
100              0.00                  34.36                 -5.50          265.50                -5.50          202.30
105              0.00                  38.17                 -5.50          265.50                -5.50          202.30
110              0.00                  42.20                 -5.50          265.50                -5.50          202.30
115              0.00                  46.38                 -5.50          265.50                -5.50          202.30
120              0.00                  50.68                 -5.50          265.50                -5.50          202.30
125              0.00                  55.07                 -5.50          265.50                -5.50          202.30
130              0.00                  59.52                 -5.50          265.50                -5.50          202.30
135              0.00                  64.03                 -5.50          265.50                -5.50          202.30
140              0.00                  68.57                 -5.50          265.50                -5.50          202.30
145              0.00                  73.15                 -5.50          265.50                -5.50          202.30
150              0.00                  77.74                 -5.50          265.50                -5.50          202.30
155              0.00                  82.35                 -5.50          265.50                -5.50          202.30
160              0.00                  86.97                 -5.50          265.50                -5.50          202.30
165              0.00                  91.59                 -5.50          265.50                -5.50          202.30
170              0.00                  96.20                 -5.50          265.50                -5.50          202.30
175              0.00                 100.82                 -5.50          265.50                -5.50          202.30
180              0.00                 105.42                 -5.50          265.50                -5.50          202.30
185              0.00                 110.00                 -5.50          265.50                -5.50          202.30




Frequency Coordination and Interference Analysis Report                  03/22/2019             Page 9 of 11


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


Coordination Values              CONRAD, MT
Licensee Name                    Space Exploration Holdings
Latitude (NAD 83)                48° 12' 11.9" N
Longitude (NAD 83)               111° 56' 43.0" W
Ground Elevation (AMSL)          1058.97 m / 3474.3 ft
Antenna Centerline (AGL)         0.91 m / 3.0 ft
Antenna Model                    Cobham 1 meter
Antenna Mode                               Receive 11.0 GHz                          Transmit 14.0 GHz
Interference Objectives: Long Term         -156.0 dBW/MHz 20%                        -151.0 dBW/4 kHz          20%
                         Short Term        -146.0 dBW/MHz 0.01%                      -128.0 dBW/4 kHz          0.0025%
 Max Available RF Power                                                              -1.2 (dBW/4 kHz)

                                                                Receive 11.0 GHz                         Transmit 14.0 GHz
               Horizon                Antenna               Horizon        Coordination          Horizon         Coordination
Azimuth (°)    Elevation (°)          Discrimination (°)    Gain (dBi)     Distance (km)         Gain (dBi)      Distance (km)
190              0.00                 114.55                 -5.50          265.50                -5.50          202.30
195              0.00                 119.07                 -5.50          265.50                -5.50          202.30
200              0.00                 123.54                 -5.50          265.50                -5.50          202.30
205              0.00                 127.95                 -5.50          265.50                -5.50          202.30
210              0.00                 132.28                 -5.50          265.50                -5.50          202.30
215              0.00                 136.50                 -5.50          265.50                -5.50          202.30
220              0.00                 140.58                 -5.50          265.50                -5.50          202.30
225              0.00                 144.47                 -5.50          265.50                -5.50          202.30
230              0.00                 148.09                 -5.50          265.50                -5.50          202.30
235              0.00                 151.34                 -5.50          265.50                -5.50          202.30
240              0.00                 154.08                 -5.50          265.50                -5.50          202.30
245              0.00                 156.14                 -5.50          265.50                -5.50          202.30
250              0.00                 157.31                 -5.50          265.50                -5.50          202.30
255              0.00                 157.48                 -5.50          265.50                -5.50          202.30
260              0.00                 156.61                 -5.50          265.50                -5.50          202.30
265              0.00                 154.81                 -5.50          265.50                -5.50          202.30
270              0.00                 152.26                 -5.50          265.50                -5.50          202.30
275              0.00                 149.16                 -5.50          265.50                -5.50          202.30
280              0.00                 145.64                 -5.50          265.50                -5.50          202.30
285              0.00                 141.83                 -5.50          265.50                -5.50          202.30
290              0.00                 137.80                 -5.50          265.50                -5.50          202.30
295              0.00                 133.62                 -5.50          265.50                -5.50          202.30
300              0.00                 129.32                 -5.50          265.50                -5.50          202.30
305              0.00                 124.93                 -5.50          265.50                -5.50          202.30
310              0.00                 120.48                 -5.50          265.50                -5.50          202.30
315              0.00                 115.97                 -5.50          265.50                -5.50          202.30
320              0.00                 111.43                 -5.50          265.50                -5.50          202.30
325              0.00                 106.85                 -5.50          265.50                -5.50          202.30
330              0.00                 102.26                 -5.50          265.50                -5.50          202.30
335              0.00                  97.65                 -5.50          265.50                -5.50          202.30
340              0.00                  93.03                 -5.50          265.50                -5.50          202.30
345              0.00                  88.41                 -5.50          265.50                -5.50          202.30
350              0.00                  83.80                 -5.50          265.50                -5.50          202.30
355              0.00                  79.18                 -5.50          265.50                -5.50          202.30




Frequency Coordination and Interference Analysis Report                  03/22/2019            Page 10 of 11


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: March 22, 2019




Frequency Coordination and Interference Analysis Report        03/22/2019          Page 11 of 11



Document Created: 2019-03-22 14:48:04
Document Modified: 2019-03-22 14:48:04

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