Attachment Coord

This document pretains to SES-REG-INTR2018-00593 for Earth Station Registration on a Satellite Earth Station filing.

IBFS_SESREGINTR201800593_1352977

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                        Prepared for
           Public Broadcasting of Colorado, Inc.
                         AVON, CO
                   Satellite Earth Station




                       Prepared By:
                      COMSEARCH
               19700 Janelia Farm Boulevard
                   Ashburn, VA 20147
                      March 12, 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                                             03/12/2018                        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   03/12/2018         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.

No carriers reported potential interference cases.




Frequency Coordination and Interference Analysis Report   03/12/2018        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 02/14/2018.

        Company
        Qwest Corporation




Frequency Coordination and Interference Analysis Report                 03/12/2018              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            03/12/2018            Page 6 of 10


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

Date:                                    03/12/2018
Job Number:                              180214COMSTC03
Administrative Information
Licensee Code                            PUBCOL
Licensee Name                            Public Broadcasting of Colorado, Inc.
Site Information                         AVON, CO
Venue Name                               KPRE K206EM
Latitude (NAD 83)                        39° 37' 19.9" N
Longitude (NAD 83)                       106° 29' 16.6" W
Climate Zone                             A
Rain Zone                                2
Ground Elevation (AMSL)                  2303.87 m / 7558.6 ft
Link Information
Satellite Type                           Geostationary
Mode                                     RO - Receive-Only
Modulation                               Digital
Satellite Arc                            58° W to 143° West Longitude
Azimuth Range                            119.4° to 229.3°
Corresponding Elevation Angles           22.7° / 30.8°
Antenna Centerline (AGL)                 9.75 m / 32.0 ft
Antenna Information                            Receive
Manufacturer                                   Anderson
Model                                          Offset
Gain / Diameter                                38.2 dBi / 2.4 m
3-dB / 15-dB Beamwidth                         1.00° / 2.00°

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)               30K0G7W - 36M0G7W / 3700.0 - 4200.0
                                               30K0F7W - 36M0F7W / 3700.0 - 4200.0


Max Great Circle Coordination Distance         285.3 km / 177.2 mi
Precipitation Scatter Contour Radius           499.0 km / 310.0 mi




Frequency Coordination and Interference Analysis Report                      03/12/2018        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               AVON, CO
Licensee Name                     Public Broadcasting of Colorado, Inc.
Latitude (NAD 83)                 39° 37' 19.9" N
Longitude (NAD 83)                106° 29' 16.6" W
Ground Elevation (AMSL)           2303.87 m / 7558.6 ft
Antenna Centerline (AGL)          9.75 m / 32.0 ft
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              11.69              118.85                 -10.00          100.00
 5              11.96              113.99                 -10.00          100.00
 10             12.77              109.14                 -10.00          100.00
 15             13.31              104.25                 -10.00          100.00
 20             13.48               99.32                 -10.00          100.00
 25             13.37               94.39                 -10.00          100.00
 30             13.47               89.45                 -10.00          100.00
 35             12.76               84.53                 -10.00          100.00
 40             12.06               79.63                 -10.00          100.00
 45             11.23               74.76                 -10.00          100.00
 50             10.73               69.91                 -10.00          100.00
 55              9.90               65.12                 -10.00          100.00
 60              9.39               60.35                 -10.00          100.00
 65              9.63               55.50                 -10.00          100.00
 70              9.55               50.71                 -10.00          100.00
 75              8.95               46.09                  -9.59          100.00
 80              7.96               41.68                  -8.50          110.17
 85              8.61               36.88                  -7.17          109.79
 90              7.18               32.95                  -5.95          128.74
 95              6.33               29.12                  -4.61          142.59
100              6.37               25.17                  -3.02          149.83
105              6.30               21.71                  -1.42          159.28
110              5.42               19.60                  -0.31          178.79
115              5.58               17.65                   0.83          183.40
120              5.37               17.32                   1.04          187.15
125              6.19               17.37                   1.00          176.76
130              6.63               19.13                  -0.04          162.51
135              8.47               20.70                  -0.90          136.34
140              9.88               22.47                  -1.79          121.59
145             10.91               24.23                  -2.61          110.67
150             11.43               26.10                  -3.42          103.67
155             11.72               27.83                  -4.11          100.00
160             11.69               29.51                  -4.75          100.00
165             11.71               30.78                  -5.21          100.00
170             11.72               31.70                  -5.53          100.00
175             11.54               32.43                  -5.77          100.00
180             11.61               32.54                  -5.81          100.00
185             11.05               32.92                  -5.94          100.00




Frequency Coordination and Interference Analysis Report                03/12/2018         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               AVON, CO
Licensee Name                     Public Broadcasting of Colorado, Inc.
Latitude (NAD 83)                 39° 37' 19.9" N
Longitude (NAD 83)                106° 29' 16.6" W
Ground Elevation (AMSL)           2303.87 m / 7558.6 ft
Antenna Centerline (AGL)          9.75 m / 32.0 ft
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             10.31              33.08                   -5.99          100.50
195             11.14              31.33                   -5.40          100.00
200             12.03              29.18                   -4.63          100.00
205             12.75              26.89                   -3.74          100.00
210             14.22              23.61                   -2.33          100.00
215             15.70              20.10                   -0.58          100.00
220             14.33              18.81                    0.14          100.29
225             13.21              18.07                    0.58          109.60
230             11.64              19.16                   -0.06          117.05
235             10.92              20.64                   -0.87          118.23
240             11.03              22.38                   -1.75          113.59
245             10.30              25.63                   -3.22          112.25
250             10.22              28.89                   -4.52          107.28
255             9.05                33.21                  -6.03          110.59
260             8.09                37.54                  -7.36          113.53
265             5.76                42.66                  -8.75          132.47
270             4.98                46.99                  -9.80          134.60
275             3.94                51.49                 -10.00          149.17
280             3.15                55.90                 -10.00          166.20
285             0.82                60.82                 -10.00          230.25
290             0.00                65.18                 -10.00          285.28
295             0.78                69.16                 -10.00          232.32
300             1.96                73.21                 -10.00          195.68
305             2.09                77.53                 -10.00          192.51
310             2.52                81.86                 -10.00          182.51
315             3.71                86.21                 -10.00          153.79
320             4.74               90.67                  -10.00          137.10
325             6.34                95.23                 -10.00          121.51
330             7.41                99.85                 -10.00          109.94
335             8.02               104.49                 -10.00          103.60
340             8.57               109.14                 -10.00          100.00
345             9.12               113.81                 -10.00          100.00
350             8.78               118.29                 -10.00          100.00
355             9.67               123.02                 -10.00          100.00




Frequency Coordination and Interference Analysis Report                03/12/2018         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: March 12, 2018




Frequency Coordination and Interference Analysis Report   03/12/2018   Page 10 of 10



Document Created: 2018-03-12 16:17:50
Document Modified: 2018-03-12 16:17:50

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