Attachment Coordination report

This document pretains to SES-REG-INTR2018-01912 for Earth Station Registration on a Satellite Earth Station filing.

IBFS_SESREGINTR201801912_1407095

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                    Prepared for
              Cowan Broadcasting LLC
                     BEND, OR
               Satellite Earth Station




                     Prepared By:
                    COMSEARCH
             19700 Janelia Farm Boulevard
                 Ashburn, VA 20147
                    May 30, 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                                             05/30/2018                        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    05/30/2018          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   05/30/2018      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 to the below listed carriers with a letter dated 05/30/2018.

        Company
        Comsearch




Frequency Coordination and Interference Analysis Report                 05/30/2018              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            05/30/2018            Page 6 of 10


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

Date:                                    05/30/2018
Job Number:                              180530COMSGE01
Administrative Information
Status                                   ENGINEER PROPOSAL
Call Sign
Licensee Code                            KNLRFM
Licensee Name                            Cowan Broadcasting LLC
Site Information                         BEND, OR
Venue Name
Latitude (NAD 83)                        44° 3' 2.0" N
Longitude (NAD 83)                       121° 17' 30.4" W
Climate Zone                             A
Rain Zone                                3
Ground Elevation (AMSL)                  1126.16 m / 3694.8 ft
Link Information
Satellite Type                           Geostationary
Mode                                     RO - Receive-Only
Modulation                               Digital
Satellite Arc                            60° W to 143° West Longitude
Azimuth Range                            110.8° to 209.8°
Corresponding Elevation Angles           11.7° / 34.8°
Antenna Centerline (AGL)                 2.74 m / 9.0 ft
Antenna Information                            Receive - C40381
Manufacturer                                   COMTECH ANTENNA SYSTEMS
Model                                          3.8 METER PF
Gain / Diameter                                42.9 dBi / 3.8 m
3-dB / 15-dB Beamwidth                         1.40° / 2.80°

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         418.3 km / 259.9 mi
Precipitation Scatter Contour Radius           384.5 km / 238.9 mi




Frequency Coordination and Interference Analysis Report                      05/30/2018        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             BEND, OR
Licensee Name                     Cowan Broadcasting LLC
Latitude (NAD 83)                 44° 3' 2.0" N
Longitude (NAD 83)                121° 17' 30.4" W
Ground Elevation (AMSL)           1126.16 m / 3694.8 ft
Antenna Centerline (AGL)          2.74 m / 9.0 ft
Antenna Model                     COMTECH ANTENNA SYSTEMS 3.8 METER PF
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              110.40                   -8.10          297.65
 5              0.00              105.51                   -8.10          297.65
 10             0.28              100.63                   -8.10          286.84
 15             0.63               95.74                   -8.10          252.51
 20             1.45               90.84                   -8.10          215.94
 25             3.75               85.89                   -8.10          162.25
 30             5.72               80.90                   -8.10          134.15
 35             5.64               75.93                   -8.10          134.92
 40             3.83               71.04                   -8.10          160.58
 45             1.83               66.23                   -8.10          205.42
 50             0.00               61.51                   -8.10          297.65
 55             0.00               56.65                   -8.10          297.65
 60             0.00               51.81                   -8.10          297.65
 65             0.00               46.99                   -8.10          297.65
 70             0.00               42.20                   -7.98          298.45
 75             0.00               37.46                   -6.59          307.88
 80             0.00               32.78                   -6.10          311.30
 85             0.00               28.20                   -5.38          316.99
 90             0.00               23.77                   -3.61          329.69
 95             0.00               19.60                   -1.70          343.76
100             0.00               15.89                    2.01          372.23
105             0.00               13.04                    5.81          402.44
110             0.00               11.71                    7.48          418.29
115             0.00               12.39                    6.51          408.37
120             0.20               14.64                    3.26          381.70
125             0.00               18.01                   -0.11          355.75
130             0.00               21.14                   -2.55          337.40
135             0.31               23.87                   -3.65          314.37
140             0.43               26.59                   -4.74          291.47
145             0.37               29.24                   -5.80          291.87
150             0.35               31.63                   -6.10          291.91
155             0.43               33.66                   -6.10          282.61
160             0.55               35.33                   -6.17          270.24
165             1.15               36.19                   -6.34          235.01
170             0.67               37.70                   -6.64          259.20
175             0.71               38.30                   -6.76          255.89
180             0.81               38.42                   -6.78          249.18
185             0.72               38.29                   -6.76          254.84




Frequency Coordination and Interference Analysis Report                05/30/2018        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             BEND, OR
Licensee Name                     Cowan Broadcasting LLC
Latitude (NAD 83)                 44° 3' 2.0" N
Longitude (NAD 83)                121° 17' 30.4" W
Ground Elevation (AMSL)           1126.16 m / 3694.8 ft
Antenna Centerline (AGL)          2.74 m / 9.0 ft
Antenna Model                     COMTECH ANTENNA SYSTEMS 3.8 METER PF
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             0.67               37.70                   -6.64          259.29
195             0.67               36.65                   -6.43          260.49
200             0.63               35.34                   -6.17          264.84
205             0.56               34.49                   -6.10          270.00
210             0.51               34.25                   -6.10          273.48
215             0.49               34.61                   -6.10          274.68
220             0.55               35.52                   -6.20          269.85
225             0.55               37.06                   -6.51          267.83
230             0.59               39.06                   -6.91          262.28
235             0.58              41.54                    -7.71          258.06
240             0.44               44.45                   -8.10          267.60
245             0.68               47.41                   -8.10          249.65
250             0.73               50.73                   -8.10          246.13
255             0.42               54.43                   -8.10          270.38
260             0.43               58.09                   -8.10          268.96
265             0.42               61.89                   -8.10          270.19
270             0.65               65.71                   -8.10          251.29
275             0.64               69.69                   -8.10          251.83
280             0.53               73.74                   -8.10          259.00
285             0.47               77.82                   -8.10          264.57
290             0.35               81.93                   -8.10          279.12
295             0.68               86.03                   -8.10          249.04
300             1.78               90.17                   -8.10          206.69
305             1.62               94.36                   -8.10          211.03
310             1.84               98.56                   -8.10          205.20
315             1.81              102.72                   -8.10          205.81
320             1.75              106.84                   -8.10          207.44
325             0.83              110.70                   -8.10          239.83
330             0.50              114.57                   -8.10          260.92
335             0.00              118.27                   -9.41          289.07
340             0.00              122.03                  -10.51          282.08
345             0.00              125.00                  -11.10          278.39
350             0.00              120.14                  -10.13          284.46
355             0.00              115.28                   -8.21          296.92




Frequency Coordination and Interference Analysis Report                05/30/2018        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.




BY: _

Gary K. Edwards
Senior Manager
COMSEARCH
19700 Janelia Farm Boulevard
Ashburn, VA 20147


DATED: May 30, 2018




Frequency Coordination and Interference Analysis Report   05/30/2018    Page 10 of 10



Document Created: 2018-05-30 09:09:27
Document Modified: 2018-05-30 09:09:27

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