Attachment coordination report

This document pretains to SES-REG-20180809-03482 for Earth Station Registration on a Satellite Earth Station filing.


FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                      Prepared for
           Comcast Cable Communications, LLC
                   WARRENTON, GA
                 Satellite Earth Station




                       Prepared By:
                      COMSEARCH
               19700 Janelia Farm Boulevard
                   Ashburn, VA 20147
                      June 19, 2018


                                                      TABLE OF CONTENTS
1. CONCLUSIONS ............................................................................................................................................ 3
2. SUMMARY OF RESULTS ............................................................................................................................ 4
3. SUPPLEMENTAL SHOWING ....................................................................................................................... 6
4. EARTH STATION COORDINATION DATA .................................................................................................. 7
5. CERTIFICATION ......................................................................................................................................... 11




Frequency Coordination and Interference Analysis Report                                             06/19/2018                        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.




Frequency Coordination and Interference Analysis Report   06/19/2018         Page 3 of 11


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   06/19/2018      Page 4 of 11


Frequency Coordination and Interference Analysis Report   06/19/2018   Page 5 of 11


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 06/19/2018.

        Company


        COMSEARCH




Frequency Coordination and Interference Analysis Report                 06/19/2018              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            06/19/2018            Page 7 of 11


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

Date:                                    06/19/2018
Job Number:                              180619COMSJE33
Administrative Information
Status                                   ENGINEER PROPOSAL
Call Sign
Licensee Code                            ZCATEC
Licensee Name                            Comcast Cable Communications, LLC
Site Information                         WARRENTON, GA
Venue Name
Latitude (NAD 83)                        33° 24' 59.3" N
Longitude (NAD 83)                       82° 39' 2.5" W
Climate Zone                             A
Rain Zone                                1
Ground Elevation (AMSL)                  165.42 m / 542.7 ft
Link Information
Satellite Type                           Geostationary
Mode                                     RO - Receive-Only
Modulation                               Digital
Satellite Arc                            60° W to 143° West Longitude
Azimuth Range                            142.9° to 252.6°
Corresponding Elevation Angles           44.2° / 16.0°
Antenna Centerline (AGL)                 2.74 m / 9.0 ft
Antenna Information                            Receive - S40451
Manufacturer                                   SCIENTIFIC-ATLANTA, INC
Model                                          4.5M PRIME FOCUS
Gain / Diameter                                43.6 dBi / 4.5 m
3-dB / 15-dB Beamwidth                         1.20° / 2.60°

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         371.2 km / 230.6 mi
Precipitation Scatter Contour Radius           594.3 km / 369.3 mi




Frequency Coordination and Interference Analysis Report                          06/19/2018    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             WARRENTON, GA
Licensee Name                     Comcast Cable Communications, LLC
Latitude (NAD 83)                 33° 24' 59.3" N
Longitude (NAD 83)                82° 39' 2.5" W
Ground Elevation (AMSL)           165.42 m / 542.7 ft
Antenna Centerline (AGL)          2.74 m / 9.0 ft
Antenna Model                     SCIENTIFIC-ATLANTA, INC 4.5M PRIME FOCUS
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              0.24              106.73                  -10.40          277.32
 5              0.25              111.52                  -10.40          276.98
 10             0.00              116.26                  -10.40          282.75
 15             0.00              116.12                  -10.40          282.75
 20             0.00              112.90                  -10.40          282.75
 25             0.00              109.58                  -10.40          282.75
 30             0.00              106.18                  -10.40          282.75
 35             0.00              102.70                  -10.40          282.75
 40             0.00               99.18                  -10.40          282.75
 45             0.33               95.65                  -10.40          267.05
 50             0.49               92.06                  -10.40          248.72
 55             0.49               88.44                  -10.40          248.06
 60             0.51               84.83                  -10.40          246.64
 65             0.49               81.24                  -10.40          248.95
 70             0.59               77.66                  -10.40          241.86
 75             0.97               74.04                  -10.40          219.93
 80             1.07               70.53                  -10.40          216.02
 85             1.15               67.10                  -10.40          213.81
 90             1.15               63.79                  -10.40          213.69
 95             1.09               60.64                  -10.40          215.52
100             1.00               57.67                  -10.40          218.58
105             0.88               54.91                  -10.40          224.88
110             0.89               52.29                  -10.40          224.43
115             0.91               49.90                  -10.38          222.99
120             1.06               47.70                   -9.94          218.60
125             1.16               45.87                   -9.57          217.42
130             1.35               44.33                   -9.13          214.04
135             1.42               43.31                   -8.72          213.88
140             1.40               42.83                   -8.53          215.49
145             1.31               42.89                   -8.56          218.06
150             1.16               43.47                   -8.79          221.51
155             1.04               44.46                   -9.19          223.11
160             0.99               45.82                   -9.56          223.08
165             0.65               47.79                   -9.96          240.33
170             0.37               49.53                  -10.31          262.12
175             0.37               50.46                  -10.40          262.50
180             0.35               50.79                  -10.40          264.39
185             0.31               50.51                  -10.40          268.88




Frequency Coordination and Interference Analysis Report                06/19/2018        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             WARRENTON, GA
Licensee Name                     Comcast Cable Communications, LLC
Latitude (NAD 83)                 33° 24' 59.3" N
Longitude (NAD 83)                82° 39' 2.5" W
Ground Elevation (AMSL)           165.42 m / 542.7 ft
Antenna Centerline (AGL)          2.74 m / 9.0 ft
Antenna Model                     SCIENTIFIC-ATLANTA, INC 4.5M PRIME FOCUS
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               49.87                  -10.37          282.91
195             0.00               48.35                  -10.07          284.83
200             0.00               46.33                   -9.67          287.42
205             0.00               43.87                   -8.95          292.06
210             0.00               41.05                   -7.82          299.52
215             0.00               37.95                   -6.99          305.15
220             0.00               34.60                   -6.24          310.32
225             0.00               31.07                   -4.83          320.91
230             0.00               27.38                   -3.35          331.54
235             0.00               23.63                   -1.85          342.61
240             0.00               20.28                   -0.51          352.69
245             0.00               17.70                    0.98          364.19
250             0.00               16.23                    1.86          371.04
255             0.00               16.21                    1.88          371.17
260             0.00               17.62                    1.03          364.54
265             0.00               20.17                   -0.47          353.03
270             0.00               23.50                   -1.80          343.01
275             0.00               27.31                   -3.32          331.75
280             0.00               31.44                   -4.97          319.86
285             0.00               35.77                   -6.55          308.15
290             0.00               40.23                   -7.49          301.73
295             0.00               44.79                   -9.32          289.66
300             0.00               49.42                  -10.28          283.47
305             0.00               54.10                  -10.40          282.75
310             0.00               58.82                  -10.40          282.75
315             0.00               63.57                  -10.40          282.75
320             0.00               68.33                  -10.40          282.75
325             0.00               73.11                  -10.40          282.75
330             0.00               77.91                  -10.40          282.75
335             0.00               82.71                  -10.40          282.75
340             0.00               87.51                  -10.40          282.75
345             0.00               92.31                  -10.40          282.75
350             0.27               97.13                  -10.40          274.16
355             0.24              101.93                  -10.40          277.91




Frequency Coordination and Interference Analysis Report                06/19/2018        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: ___________________________

Jennifer Lokey
Coordinator III,Data
COMSEARCH
19700 Janelia Farm Boulevard
Ashburn, VA 20147


DATED: June 19, 2018




Frequency Coordination and Interference Analysis Report   06/19/2018   Page 11 of 11



Document Created: 2018-06-19 10:20:00
Document Modified: 2018-06-19 10:20:00

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