Attachment Exhibit A SES-LIC-20120530-00486

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

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

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