Attachment Exhibit B2 SES-LIC-20121213-01097

Attachment Exhibit B2

This document pretains to SES-LIC-20121213-01097 for License on a Satellite Earth Station filing.

IBFS_SESLIC2012121301097_978181

FREQUENCY COORDINATION AND INTERFERENCE
ANALYSIS REPORT

Prepared for
GCI Communication Corporation
NIKOLAI, AK
Satellite Earth Station

Prepared By:
COMSEARCH
19700 Janelia Farm Boulevard
Ashburn, VA 20147
December 6, 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 12/06/2012 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.
Further, there will be no restrictions of its operation due to interference considerations.

Frequency Coordination and Interference Analysis Report 12/06/2012 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 12/06/2012 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.

Frequency Coordination and Interference Analysis Report 12/06/2012 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 12/06/2012 Page 6 of 10

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

Date: 12/06/2012
Job Number: 121206COMSTC01
Administrative Information
Licensee Code P3203
Licensee Name GCI Communication Corporation
Site Information NIKOLAI, AK
Latitude (NAD 83) 63° 0' 48.4" N
Longitude (NAD 83) 154° 22' 31.0" W
Climate Zone A
Rain Zone 2
Ground Elevation (AMSL) 130.45 m / 428.0 ft
Link Information
Satellite Type Geostationary
Mode TR - Transmit-Receive
Modulation Digital
Satellite Arc 99° W to 194° West Longitude
Azimuth Range 121.6° to 222.9°
Corresponding Elevation Angles 6.3° / 11.9°
Antenna Centerline (AGL) 3.66 m / 12.0 ft
Antenna Information Receive - FCC32 Transmit - FCC32
Manufacturer Skyware Global Skyware Global
Model 243 243
Gain / Diameter 38.0 dBi / 2.4 m 42.0 dBi / 2.4 m
3-dB / 15-dB Beamwidth 2.10° / 4.00° 1.30° / 2.60°

45K0G7W - 36M0G7W
45K0D7W - 36M0D7W
Max Available RF Power (dBW/4 kHz) -8.1 -16.53
(dBW/MHz) 15.9 7.47

Maximum EIRP (dBW/4 kHz) 33.9 25.47
(dBW/MHz) 57.88 49.45
(dBW) 44.4 65.01

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) 45K0G7W - 36M0G7W / 3700.0 - 4200.0 45K0G7W - 36M0G7W / 5925.0 - 6425.0
45K0D7W - 36M0D7W / 3700.0 - 4200.0 45K0D7W - 36M0D7W / 5925.0 - 6425.0

Max Great Circle Coordination Distance 486.7 km / 302.4 mi 235.5 km / 146.3 mi
Precipitation Scatter Contour Radius 593.4 km / 368.7 mi 100.0 km / 62.1 mi

Frequency Coordination and Interference Analysis Report 12/06/2012 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 NIKOLAI, AK
Licensee Name GCI Communication Corporation
Latitude (NAD 83) 63° 0' 48.4" N
Longitude (NAD 83) 154° 22' 31.0" W
Ground Elevation (AMSL) 130.45 m / 428.0 ft
Antenna Centerline (AGL) 3.66 m / 12.0 ft
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 -8.1 (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 0.00 121.39 -10.00 285.28 -10.00 149.26
5 0.00 116.43 -10.00 285.28 -10.00 149.26
10 0.00 111.47 -10.00 285.28 -10.00 149.26
15 0.00 106.50 -10.00 285.28 -10.00 149.26
20 0.00 101.54 -10.00 285.28 -10.00 149.26
25 0.00 96.57 -10.00 285.28 -10.00 149.26
30 0.00 91.60 -10.00 285.28 -10.00 149.26
35 0.00 86.63 -10.00 285.28 -10.00 149.26
40 0.00 81.66 -10.00 285.28 -10.00 149.26
45 0.00 76.69 -10.00 285.28 -10.00 149.26
50 0.00 71.72 -10.00 285.28 -10.00 149.26
55 0.00 66.76 -10.00 285.28 -10.00 149.26
60 0.00 61.79 -10.00 285.28 -10.00 149.26
65 0.00 56.83 -10.00 285.28 -10.00 149.26
70 0.00 51.88 -10.00 285.28 -10.00 149.26
75 0.00 46.93 -9.79 286.64 -9.79 149.97
80 0.00 41.99 -8.58 294.47 -8.58 154.13
85 0.00 37.07 -7.23 303.54 -7.23 159.00
90 0.00 32.16 -5.68 314.84 -5.68 164.81
95 0.00 27.29 -3.90 327.57 -3.90 173.38
100 0.00 22.46 -1.79 343.09 -1.79 181.57
105 0.00 17.73 0.78 362.64 0.78 191.46
110 0.00 13.18 4.00 388.12 4.00 203.76
115 0.00 9.12 8.00 421.22 8.00 218.04
120 0.00 6.50 11.68 486.73 11.68 235.52
125 0.00 7.12 10.69 453.25 10.69 229.79
130 0.00 8.95 8.20 423.73 8.20 218.87
135 0.00 10.67 6.30 406.55 6.30 211.05
140 0.00 12.26 4.79 393.94 4.79 205.14
145 0.00 13.71 3.58 384.70 3.58 202.14
150 0.00 15.00 2.60 376.88 2.60 198.41
155 0.00 16.12 1.82 370.71 1.82 195.43
160 0.00 17.05 1.21 365.93 1.21 193.09
165 0.00 17.79 0.75 362.36 0.75 191.33
170 0.00 18.32 0.43 359.88 0.43 190.09
175 0.00 18.65 0.24 358.41 0.24 189.36
180 0.00 18.76 0.17 357.91 0.17 189.11
185 0.00 18.65 0.23 358.39 0.23 189.35

Frequency Coordination and Interference Analysis Report 12/06/2012 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 NIKOLAI, AK
Licensee Name GCI Communication Corporation
Latitude (NAD 83) 63° 0' 48.4" N
Longitude (NAD 83) 154° 22' 31.0" W
Ground Elevation (AMSL) 130.45 m / 428.0 ft
Antenna Centerline (AGL) 3.66 m / 12.0 ft
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 -8.1 (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)
190 0.00 18.32 0.43 359.87 0.43 190.09
195 0.00 17.79 0.75 362.36 0.75 191.33
200 0.00 17.05 1.21 365.94 1.21 193.10
205 0.00 16.11 1.82 370.73 1.82 195.44
210 0.00 15.00 2.60 376.90 2.60 198.42
215 0.00 13.71 3.58 384.71 3.58 202.15
220 0.00 12.29 4.76 393.71 4.76 205.03
225 0.00 12.13 4.90 394.88 4.90 205.57
230 0.00 13.88 3.44 383.64 3.44 201.64
235 0.00 16.95 1.27 366.44 1.27 193.34
240 0.00 20.76 -0.93 349.51 -0.93 184.87
245 0.00 24.99 -2.94 334.55 -2.94 177.10
250 0.00 29.44 -4.72 321.65 -4.72 170.18
255 0.00 34.03 -6.30 309.93 -6.30 162.47
260 0.00 38.72 -7.70 300.35 -7.70 157.28
265 0.00 43.46 -8.95 292.03 -8.95 152.83
270 0.00 48.25 -10.00 285.28 -10.00 149.26
275 0.00 53.07 -10.00 285.28 -10.00 149.26
280 0.00 57.90 -10.00 285.28 -10.00 149.26
285 0.00 62.76 -10.00 285.28 -10.00 149.26
290 0.00 67.63 -10.00 285.28 -10.00 149.26
295 0.00 72.51 -10.00 285.28 -10.00 149.26
300 0.00 77.39 -10.00 285.28 -10.00 149.26
305 0.00 82.28 -10.00 285.28 -10.00 149.26
310 0.00 87.17 -10.00 285.28 -10.00 149.26
315 0.00 92.06 -10.00 285.28 -10.00 149.26
320 0.00 96.95 -10.00 285.28 -10.00 149.26
325 0.00 101.84 -10.00 285.28 -10.00 149.26
330 0.00 106.72 -10.00 285.28 -10.00 149.26
335 0.00 111.60 -10.00 285.28 -10.00 149.26
340 0.00 116.47 -10.00 285.28 -10.00 149.26
345 0.00 121.33 -10.00 285.28 -10.00 149.26
350 0.00 126.17 -10.00 285.28 -10.00 149.26
355 0.00 126.35 -10.00 285.28 -10.00 149.26

Frequency Coordination and Interference Analysis Report 12/06/2012 Page 9 of 10

Document Created: 2012-12-06 16:22:24
Document Modified: 2012-12-06 16:22:24

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