Attachment Exhibit A

This document pretains to SES-LIC-20120530-00486 for License on a Satellite Earth Station filing.

IBFS_SESLIC2012053000486_953441

FREQUENCY COORDINATION AND INTERFERENCE
            ANALYSIS REPORT


                        Prepared for

         Nebraska Educational Telecomm Commission
                     Lincoln, Nebraska

                   Satellite Earth Station




                        Prepared By:
                       COMSEARCH
                19700 Janelia Farm Boulevard
                   Ashburn, Virginia 20147
                       May 22, 2012


                                                     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                                             05/22/2012                       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, based
upon the restrictions noted in the Summary of Results (Section 2).




Frequency Coordination and Interference Analysis Report   05/22/2012         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 most cases.

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 and frequency
separation are considered on the interfering paths, sufficient losses exist to negate
harmful interference from occurring with the transmit/receive earth station. Further, the
transmit spectrum will be limited to frequencies 5925.0 to 6210.5 MHz, 6243.0 to 6329.0
MHz, and 6362.0 to 6425.0 MHz.


       Company

       BNSF Railway Company
       BorderCOMM Partners LP (XC)
       Great Western Communications, LLC
       Nebraska Public Power District
       NE Colorado Cellular, Inc.
       Omaha Public Power District
       USCOC Nebraska/Kansas, LLC



No other carriers reported potential interference cases.




Frequency Coordination and Interference Analysis Report    05/22/2012         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 April 10, 2012.


        Company

        BNSF Railway Company
        BorderCOMM Partners LP (XC)
        Cox Communications Kansas LLC
        Douglas County Communications Department
        EAST RIVER ELECTRIC POWER COOPERATIVE
        Great Western Communications, LLC
        Jagwire Enterprises
        LINCOLN WATER SYSTEM
        METROPOLITAN AREA NETWORKS, INC.
        Mid Kansas Inc.
        MidAmerican Energy Company
        Midwest Wireless Communications, LLC
        NE Colorado Cellular, Inc.
        NEBRASKA PUBLIC POWER DISTRICT
        New Cingular Wireless PCS -ND/SD/NE/IA
        New Cingular Wireless PCS, LLC - KS/MO
        OMAHA PUBLIC POWER DISTRICT
        Pottawattamie, County of
        RSA 1 Limited Partnership
        USCOC Nebraska/Kansas, LLC
        USCOC of Greater Iowa, LLC
        USCOC of Greater Missouri, LLC
        Union Pacific Railroad Company
        Verizon Wireless (VAW) LLC (KS,MO,MN,OK)
        Verizon Wireless (VAW) LLC (ND,MN,SD,NE)
        WOODBURY, COUNTY OF




Frequency Coordination and Interference Analysis Report                  05/22/2012              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            05/22/2012            Page 6 of 10


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

Date:                                    05/22/2012
Job Number:                              120410COMSJC01
Administrative Information
Status                                   ENGINEER PROPOSAL
Call Sign
Licensee Code                            NEBETC
Licensee Name                            Nebraska Educational Telecommunications Commission
Site Information                         LINCOLN, NEBRASKA
Venue Name
Latitude (NAD 83)                        40° 49' 53.6" N
Longitude (NAD 83)                       96° 40' 17.5" W
Climate Zone                             A
Rain Zone                                2
Ground Elevation (AMSL)                  355.7 m / 1167.0 ft
Link Information
Satellite Type                           Geostationary
Mode                                     TR - Transmit-Receive
Modulation                               Digital
Satellite Arc                            85° W to 105° West Longitude
Azimuth Range                            162.5° to 192.6°
Corresponding Elevation Angles           41.3° / 42.0°
Antenna Centerline (AGL)                 6.1 m / 20.0 ft
Antenna Information                            Receive                                Transmit
Manufacturer                                   Vertex                                 Vertex
Model                                          9 KPC                                  9 KPC
Gain / Diameter                                50.1 dBi / 9.0 m                       53.5 dBi / 9.0 m
3-dB / 15-dB Beamwidth                         0.54° / 1.00°                          0.36° / 0.68°

                                                                                     308KG7W to 36M0G7W

Max Available RF Power        (dBW/4 kHz)                                              -2.7         -13.0
                              (dBW/MHz)                                               16.2           11.0

Maximum EIRP                  (dBW/4 kHz)                                             50.8           40.5
                              (dBW/MHz)                                               69.7           64.5
                              (dBW)                                                   69.7           80.0

Interference Objectives:    Long Term          -156.0 dBW/MHz        20%              -154.0 dBW/4 kHz       20%
                            Short Term         -146.0 dBW/MHz        0.01%            -131.0 dBW/4 kHz       0.0025%
Frequency Information                          Receive 4.0 GHz                        Transmit 6.1 GHz
Emission / Frequency Range (MHz)               308KG7W - 36M0G7W / 3700.0 - 4200.0    308KG7W - 36M0G7W / 5925.0 - 6210.5
                                                                                      308KG7W - 36M0G7W / 6243.0 - 6329.0
                                                                                      308KG7W - 36M0G7W / 6362.0 - 6425.0


Max Great Circle Coordination Distance         293.5 km / 182.4 mi                    175.6 km / 109.1 mi
Precipitation Scatter Contour Radius           100.0 km / 62.1 mi                     100.0 km / 62.1 mi




Frequency Coordination and Interference Analysis Report                      05/22/2012            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              LINCOLN, NE
Licensee Name                     Nebraska Educational Telecommunications Commission
Latitude (NAD 83)                 40° 49' 53.6" N
Longitude (NAD 83)                96° 40' 17.5" W
Ground Elevation (AMSL)           355.7 m / 1167.0 ft
Antenna Centerline (AGL)          6.1 m / 20.0 ft
Antenna Model                     Vertex 9 KPC
Antenna Mode                             Receive 4.0 GHz                   Transmit 6.1 GHz
Interference Objectives: Long Term       -156.0 dBW/MHz 20%                -154.0 dBW/4 kHz            20%
                         Short Term      -146.0 dBW/MHz 0.01%              -131.0 dBW/4 kHz            0.0025%
 Max Available RF Power                                                    -2.7 (dBW/4 kHz)

                                                              Receive 4.0 GHz                  Transmit 6.1 GHz
               Horizon            Antenna                 Horizon        Coordination     Horizon        Coordination
Azimuth (°)    Elevation (°)      Discrimination (°)      Gain (dBi)     Distance (km)    Gain (dBi)     Distance (km)
 0              0.00              135.76                  -10.00          285.28          -10.00         170.66
  5             0.00              133.95                  -10.00          285.28          -10.00         170.66
 10             0.00              131.78                  -10.00          285.28          -10.00         170.66
 15             0.00              129.31                  -10.00          285.28          -10.00         170.66
 20             0.00              126.57                  -10.00          285.28          -10.00         170.66
 25             0.00              123.62                  -10.00          285.28          -10.00         170.66
 30             0.00              120.49                  -10.00          285.28          -10.00         170.66
 35             0.00              117.20                  -10.00          285.28          -10.00         170.66
 40             0.00              113.79                  -10.00          285.28          -10.00         170.66
 45             0.00              110.28                  -10.00          285.28          -10.00         170.66
 50             0.00              106.69                  -10.00          285.28          -10.00         170.66
 55             0.00              103.04                  -10.00          285.28          -10.00         170.66
 60             0.00              99.34                   -10.00          285.28          -10.00         170.66
 65             0.00              95.61                   -10.00          285.28          -10.00         170.66
 70             0.00              91.86                   -10.00          285.28          -10.00         170.66
 75             0.24              88.09                   -10.00          279.85          -10.00         164.28
 80             0.32              84.32                   -10.00          270.19          -10.00         155.94
 85             0.32              80.57                   -10.00          270.91          -10.00         156.55
 90             0.34              76.85                   -10.00          267.86          -10.00         153.97
 95             0.32              73.18                   -10.00          270.12          -10.00         155.88
100             0.35              69.56                   -10.00          266.76          -10.00         153.04
105             0.35              66.04                   -10.00          267.34          -10.00         153.53
110             0.31              62.62                   -10.00          271.19          -10.00         156.79
115             0.26              59.34                   -10.00          277.25          -10.00         162.01
120             0.35              56.14                   -10.00          266.96          -10.00         153.21
125             0.37              53.15                   -10.00          263.98          -10.00         150.72
130             0.43              50.35                   -10.00          257.79          -10.00         145.65
135             0.51              47.79                    -9.98          249.14           -9.98         138.86
140             0.51              45.60                    -9.47          252.35           -9.47         140.59
145             0.52              43.75                    -9.02          254.06           -9.02         141.32
150             0.64              42.21                    -8.63          248.99           -8.63         136.98
155             0.59              41.27                    -8.39          253.58           -8.39         140.08
160             0.48              40.87                    -8.29          262.11           -8.29         146.68
165             0.39              40.96                    -8.31          272.11           -8.31         154.95
170             0.40              41.46                    -8.44          270.98           -8.44         154.20
175             0.33              42.23                    -8.64          277.67           -8.64         160.18
180             0.36              42.44                    -8.69          273.89           -8.69         157.05




Frequency Coordination and Interference Analysis Report                05/22/2012        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              LINCOLN, NE
Licensee Name                     Nebraska Educational Telecommunications Commission
Latitude (NAD 83)                 40° 49' 53.6" N
Longitude (NAD 83)                96° 40' 17.5" W
Ground Elevation (AMSL)           355.7 m / 1167.0 ft
Antenna Centerline (AGL)          6.1 m / 20.0 ft
Antenna Model                     Vertex 9 KPC
Antenna Mode                             Receive 4.0 GHz                   Transmit 6.1 GHz
Interference Objectives: Long Term       -156.0 dBW/MHz 20%                -154.0 dBW/4 kHz            20%
                         Short Term      -146.0 dBW/MHz 0.01%              -131.0 dBW/4 kHz            0.0025%
 Max Available RF Power                                                    -2.7 (dBW/4 kHz)

                                                              Receive 4.0 GHz                  Transmit 6.1 GHz
               Horizon            Antenna                 Horizon        Coordination     Horizon        Coordination
Azimuth (°)    Elevation (°)      Discrimination (°)      Gain (dBi)     Distance (km)    Gain (dBi)     Distance (km)
185             0.39              42.17                    -8.62          270.87           -8.62         154.39
190             0.33              41.76                    -8.52          278.53           -8.52         160.73
195             0.27              41.81                    -8.53          285.52           -8.53         168.44
200             0.00              42.55                    -8.72          293.54           -8.72         175.62
205             0.00              43.48                    -8.96          291.99           -8.96         174.71
210             0.00              44.85                    -9.29          289.81           -9.29         173.40
215             0.00              46.62                    -9.71          287.11           -9.71         171.77
220             0.00              48.73                   -10.00          285.28          -10.00         170.66
225             0.00              51.15                   -10.00          285.28          -10.00         170.66
230             0.00              53.82                   -10.00          285.28          -10.00         170.66
235             0.00              56.72                   -10.00          285.28          -10.00         170.66
240             0.00              59.80                   -10.00          285.28          -10.00         170.66
245             0.00              63.04                   -10.00          285.28          -10.00         170.66
250             0.00              66.40                   -10.00          285.28          -10.00         170.66
255             0.00              69.86                   -10.00          285.28          -10.00         170.66
260             0.00              73.40                   -10.00          285.28          -10.00         170.66
265             0.00              77.01                   -10.00          285.28          -10.00         170.66
270             0.00              80.66                   -10.00          285.28          -10.00         170.66
275             0.00              84.35                   -10.00          285.28          -10.00         170.66
280             0.00              88.06                   -10.00          285.28          -10.00         170.66
285             0.00              91.77                   -10.00          285.28          -10.00         170.66
290             0.24              95.50                   -10.00          280.10          -10.00         164.50
295             0.25              99.20                   -10.00          279.17          -10.00         163.68
300             0.23              102.87                  -10.00          281.41          -10.00         165.65
305             0.25              106.50                  -10.00          279.25          -10.00         163.75
310             0.35              110.09                  -10.00          266.95          -10.00         153.20
315             0.32              113.57                  -10.00          270.51          -10.00         156.22
320             0.35              116.97                  -10.00          266.64          -10.00         152.95
325             0.29              120.20                  -10.00          274.04          -10.00         159.23
330             0.21              123.26                  -10.00          284.33          -10.00         169.83
335             0.21              126.18                  -10.00          283.81          -10.00         169.38
340             0.00              128.73                  -10.00          285.28          -10.00         170.66
345             0.20              131.32                  -10.00          284.77          -10.00         170.21
350             0.00              133.29                  -10.00          285.28          -10.00         170.66
355             0.00              135.07                  -10.00          285.28          -10.00         170.66




Frequency Coordination and Interference Analysis Report                05/22/2012        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.




Jeffrey E. Cowles
Engineer III, Telecommunications
COMSEARCH
19700 Janelia Farm Boulevard
Ashburn, Va. 20147


DATED: May 22, 2012




Frequency Coordination and Interference Analysis Report   05/22/2012   Page 10 of 10



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Document Modified: 2019-04-28 13:07:10

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