Attachment CoordRpt

This document pretains to SES-LIC-INTR2019-02464 for License on a Satellite Earth Station filing.

IBFS_SESLICINTR201902464_1741246

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                     Prepared for
                Black News Channel
                 TALLAHASSEE, FL
                Satellite Earth Station




                     Prepared By:
                    COMSEARCH
             19700 Janelia Farm Boulevard
                 Ashburn, VA 20147
                    June 17, 2019


                                                      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                                             06/17/2019                        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   06/17/2019         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 every case.

The following companies reported potential great circle interference conflicts that did not
meet the objectives on a line-of-sight basis. When over-the-horizon losses are considered
on the interfering paths, sufficient blockage exists to negate harmful interference from
occurring with the proposed transmit-only earth station.


       Company


       Talquin Electric Cooperative Inc.


No other carriers reported potential interference cases.




Frequency Coordination and Interference Analysis Report    06/17/2019         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 05/31/2019.

        Company
        Alltel Communications LLC - S Florida
        Colquitt Electric Membership Corp
        Decatur-Grady 911
        Duke Energy Business Services, LLC.
        Georgia Southern and Florida Railway Co
        Harris Corporation - Florida
        Lowndes County Dept. of Public Safety
        North Florida Broadband Authority
        Olympic Wireless, LLC
        PowerSouth Energy Cooperative
        T-Mobile License LLC
        Tallahassee, City of
        Talquin Electric Cooperative Inc.
        Verizon Wireless (VAW) LLC (Georgia)
        Verizon Wireless (VAW) LLC - S Florida
        Verizon Wireless of The East LP - (GA)




Frequency Coordination and Interference Analysis Report                 06/17/2019              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            06/17/2019            Page 6 of 10


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

Date:                                    06/17/2019
Job Number:                              190531COMSTC05
Administrative Information
Licensee Code                            BTNCTV
Licensee Name                            Black News Channel
Site Information                         TALLAHASSEE, FL
Latitude (NAD 83)                        30° 30' 18.2" N
Longitude (NAD 83)                       84° 14' 26.7" W
Climate Zone                             A
Rain Zone                                1
Ground Elevation (AMSL)                  44.9 m / 147.3 ft
Link Information
Satellite Type                           Geostationary
Mode                                     TO - Transmit-Only
Modulation                               Digital
Satellite Arc                            58° W to 143° West Longitude
Azimuth Range                            135.8° to 252.9°
Corresponding Elevation Angles           44.4° / 18.3°
Antenna Centerline (AGL)                 5.49 m / 18.0 ft
Antenna Information                             Transmit
Manufacturer                                    ASC
Model                                           4.5M
Gain / Diameter                                 45.0 dBi / 4.5 m
3-dB / 15-dB Beamwidth                          0.96° / 1.90°

                                              51K2G7W - 36M0G7W
Max Available RF Power        (dBW/4 kHz)       -14.0    -14.1
                              (dBW/MHz)           2.98     9.9

Maximum EIRP                  (dBW/4 kHz)       31.0         30.9
                              (dBW/MHz)         42.07        55.9
                              (dBW)             42.07        70.44

Interference Objectives:    Long Term           -154.0 dBW/4 kHz 20%
                            Short Term          -131.0 dBW/4 kHz 0.0025%

Frequency Information                           Transmit 6.1 GHz
Emission / Frequency Range (MHz)                51K2G7W - 36M0G7W / 5925.0 - 6425.0


Max Great Circle Coordination Distance          117.7 km / 73.2 mi
Precipitation Scatter Contour Radius            100.0 km / 62.1 mi




Frequency Coordination and Interference Analysis Report                      06/17/2019         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             TALLAHASSEE, FL
Licensee Name                     Black News Channel
Latitude (NAD 83)                 30° 30' 18.2" N
Longitude (NAD 83)                84° 14' 26.7" W
Ground Elevation (AMSL)           44.9 m / 147.3 ft
Antenna Centerline (AGL)          5.49 m / 18.0 ft
Antenna Mode                             Transmit 6.1 GHz
Interference Objectives: Long Term       -154.0 dBW/4 kHz 20%
                         Short Term      -131.0 dBW/4 kHz 0.0025%
Max Available RF Power                   -14.0 (dBW/4 kHz)

                                                              Transmit 6.1 GHz
               Horizon            Antenna                 Horizon        Coordination
Azimuth (°)    Elevation (°)      Discrimination (°)      Gain (dBi)     Distance (km)
 0              1.48              106.36                  -10.00          100.00
 5              1.04              111.07                  -10.00          100.00
 10             1.27              115.30                  -10.00          100.00
 15             1.81              112.17                  -10.00          100.00
 20             2.00              108.78                  -10.00          100.00
 25             2.17              105.27                  -10.00          100.00
 30             2.26              101.68                  -10.00          100.00
 35             2.30               98.02                  -10.00          100.00
 40             2.30               94.33                  -10.00          100.00
 45             2.33               90.63                  -10.00          100.00
 50             2.36               86.91                  -10.00          100.00
 55             2.24               83.23                  -10.00          100.00
 60             2.19               79.56                  -10.00          100.00
 65             2.01               75.97                  -10.00          100.00
 70             1.86               72.45                  -10.00          100.00
 75             1.57               69.07                  -10.00          100.00
 80             1.46               65.73                  -10.00          100.00
 85             1.22               62.58                  -10.00          100.00
 90             0.91               59.64                  -10.00          100.00
 95             0.54               56.95                  -10.00          107.02
100             0.61               54.19                  -10.00          103.90
105             0.58               51.73                  -10.00          105.10
110             0.57               49.52                  -10.00          105.61
115             0.65               47.54                   -9.93          102.14
120             0.48               46.14                   -9.60          111.03
125             0.41               45.05                   -9.34          117.75
130             0.49               44.22                   -9.14          111.50
135             0.50               43.91                   -9.06          111.24
140             1.07               43.49                   -8.96          100.00
145             1.23               43.94                   -9.07          100.00
150             1.35               44.89                   -9.30          100.00
155             1.43               46.28                   -9.64          100.00
160             1.51               48.05                  -10.00          100.00
165             1.75               49.89                  -10.00          100.00
170             1.85               51.35                  -10.00          100.00
175             1.92               52.22                  -10.00          100.00
180             2.01               52.44                  -10.00          100.00
185             2.07               52.07                  -10.00          100.00




Frequency Coordination and Interference Analysis Report                06/17/2019        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             TALLAHASSEE, FL
Licensee Name                     Black News Channel
Latitude (NAD 83)                 30° 30' 18.2" N
Longitude (NAD 83)                84° 14' 26.7" W
Ground Elevation (AMSL)           44.9 m / 147.3 ft
Antenna Centerline (AGL)          5.49 m / 18.0 ft
Antenna Mode                             Transmit 6.1 GHz
Interference Objectives: Long Term       -154.0 dBW/4 kHz 20%
                         Short Term      -131.0 dBW/4 kHz 0.0025%
Max Available RF Power                   -14.0 (dBW/4 kHz)

                                                              Transmit 6.1 GHz
               Horizon            Antenna                 Horizon        Coordination
Azimuth (°)    Elevation (°)      Discrimination (°)      Gain (dBi)     Distance (km)
190             2.11               51.11                  -10.00          100.00
195             2.25               49.46                  -10.00          100.00
200             2.23               47.41                   -9.90          100.00
205             2.24               44.86                   -9.30          100.00
210             2.29               41.89                   -8.55          100.00
215             2.35               38.61                   -7.67          100.00
220             2.26               35.18                   -6.66          100.00
225             2.03               31.64                   -5.50          100.00
230             1.87               27.90                   -4.14          100.00
235             1.80               24.14                   -2.57          100.00
240             1.64               20.94                   -1.02          100.00
245             1.41               18.58                    0.28          103.95
250             1.31               17.22                    1.10          109.07
255             1.22               17.19                    1.12          111.31
260             1.03               18.63                    0.25          113.85
265             1.07               20.94                   -1.03          108.85
270             1.27               23.95                   -2.48          100.00
275             1.34               27.60                   -4.02          100.00
280             1.28               31.66                   -5.51          100.00
285             1.35               35.88                   -6.87          100.00
290             1.30               40.30                   -8.13          100.00
295             1.33               44.80                   -9.28          100.00
300             1.36              49.38                   -10.00          100.00
305             1.34               54.03                  -10.00          100.00
310             1.29               58.72                  -10.00          100.00
315             1.18               63.45                  -10.00          100.00
320             0.80               68.23                  -10.00          100.00
325             0.93               72.96                  -10.00          100.00
330             1.29               77.69                  -10.00          100.00
335             1.42               82.46                  -10.00          100.00
340             1.61               87.24                  -10.00          100.00
345             1.72               92.03                  -10.00          100.00
350             1.79               96.82                  -10.00          100.00
355             1.73              101.61                  -10.00          100.00




Frequency Coordination and Interference Analysis Report                06/17/2019        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 17, 2019




Frequency Coordination and Interference Analysis Report   06/17/2019   Page 10 of 10



Document Created: 2019-06-17 09:58:42
Document Modified: 2019-06-17 09:58:42

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC