Attachment canby.FinalReport.pd

This document pretains to SES-REG-20110725-00848 for Earth Station Registration on a Satellite Earth Station filing.

IBFS_SESREG2011072500848_907386

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Canby Telephone Association CANBY, OR Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 July 25, 2011

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 07/25/2011 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 07/25/2011 Page 3 of 10

2. SUMMARY OF RESULTS No great circle interference cases were identified within the coordination contours during the interference study of the proposed earth station. There are no unresolved interference objections with this proposed earth station. Frequency Coordination and Interference Analysis Report 07/25/2011 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 07/19/2011. Company Boeing Company Frequency Coordination and Interference Analysis Report 07/25/2011 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 07/25/2011 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 07/20/2011 Job Number: 110719COMSGE02 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code CANBYT Licensee Name Canby Telephone Association Site Information CANBY, OR Venue Name Latitude (NAD 83) 45° 15' 43.3" N Longitude (NAD 83) 122° 41' 29.0" W Climate Zone A Rain Zone 3 Ground Elevation (AMSL) 47.24 m / 155.0 ft Link Information Satellite Type Geostationary Mode RO - Receive-Only Modulation Digital Satellite Arc 61.5° W to 139° West Longitude Azimuth Range 111.3° to 202.4° Corresponding Elevation Angles 11.3° / 35.4° Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Information Receive - C40551 Manufacturer COMTECH ANTENNA SYSTEMS Model 5 METER OFFSAT Gain / Diameter 42.0 dBi / 5.5 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) 36M0F8W - 36M0G7W / 3700.0 - 4200.0 Max Great Circle Coordination Distance 348.8 km / 216.7 mi Precipitation Scatter Contour Radius 385.5 km / 239.5 mi Frequency Coordination and Interference Analysis Report 07/25/2011 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 CANBY, OR Licensee Name Canby Telephone Association Latitude (NAD 83) 45° 15' 43.3" N Longitude (NAD 83) 122° 41' 29.0" W Ground Elevation (AMSL) 47.24 m / 155.0 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model COMTECH ANTENNA SYSTEMS 5 METER OFFSAT 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 1.36 111.00 -10.20 208.68 5 1.41 106.09 -9.22 211.89 10 1.01 101.16 -8.23 229.18 15 0.66 96.23 -8.03 251.17 20 0.00 91.31 -8.01 298.23 25 0.63 86.40 -8.07 252.90 30 0.68 81.49 -8.01 249.84 35 0.64 76.58 -8.00 252.72 40 0.32 71.69 -8.04 282.69 45 0.48 66.79 -8.05 263.43 50 0.22 61.92 -8.09 294.83 55 0.64 57.00 -8.09 252.25 60 0.54 52.14 -8.10 258.88 65 0.51 47.30 -8.05 260.97 70 0.43 42.50 -8.02 269.53 75 0.44 37.71 -8.11 268.54 80 0.44 32.99 -8.00 269.15 85 0.47 28.33 -7.33 269.79 90 0.94 23.61 -5.45 248.96 95 0.86 19.31 -3.45 267.33 100 0.90 15.34 -0.27 286.54 105 0.81 12.24 2.76 316.78 110 0.69 10.69 4.31 348.77 115 0.48 11.42 3.58 348.82 120 0.46 13.84 1.16 331.51 125 0.00 17.35 -1.88 342.42 130 0.00 20.39 -4.16 325.71 135 0.00 23.29 -5.32 317.44 140 0.22 25.85 -6.34 307.06 145 0.22 28.37 -7.35 300.26 150 0.20 30.69 -8.00 298.17 155 0.00 32.90 -8.00 298.32 160 0.00 34.63 -8.00 298.32 165 0.00 36.03 -8.21 296.95 170 0.00 37.05 -8.41 295.60 175 0.00 37.67 -8.53 294.77 180 0.00 37.88 -8.58 294.49 185 0.00 37.67 -8.53 294.77 Frequency Coordination and Interference Analysis Report 07/25/2011 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 CANBY, OR Licensee Name Canby Telephone Association Latitude (NAD 83) 45° 15' 43.3" N Longitude (NAD 83) 122° 41' 29.0" W Ground Elevation (AMSL) 47.24 m / 155.0 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model COMTECH ANTENNA SYSTEMS 5 METER OFFSAT 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 0.00 37.05 -8.41 295.59 195 0.00 36.08 -8.22 296.88 200 0.00 35.49 -8.10 297.67 205 0.00 35.50 -8.10 297.65 210 0.00 36.12 -8.22 296.82 215 0.00 37.32 -8.02 298.21 220 0.00 39.04 -8.05 298.00 225 0.00 41.21 -8.00 298.31 230 0.00 43.77 -8.01 298.29 235 0.00 46.65 -8.07 297.87 240 0.00 49.79 -8.02 298.20 245 0.00 53.15 -8.06 297.91 250 0.00 56.68 -8.07 297.86 255 0.00 60.34 -8.04 298.04 260 0.00 64.12 -8.01 298.24 265 0.00 67.99 -8.09 297.73 270 0.00 71.92 -8.04 298.05 275 0.00 75.91 -8.06 297.92 280 0.00 79.93 -8.06 297.92 285 0.00 83.99 -8.04 298.06 290 0.00 88.06 -8.09 297.72 295 0.00 92.13 -8.02 298.20 300 0.00 96.20 -8.03 298.11 305 0.00 100.25 -8.05 297.98 310 0.00 104.28 -8.86 292.66 315 0.00 108.26 -9.65 287.50 320 0.00 112.20 -10.44 282.50 325 0.00 116.06 -11.00 279.00 330 0.00 119.83 -11.00 279.00 335 0.00 123.49 -11.00 279.00 340 0.00 127.01 -11.00 279.00 345 0.33 125.57 -11.14 261.83 350 0.39 120.71 -11.33 254.48 355 0.54 115.84 -11.34 239.65 Frequency Coordination and Interference Analysis Report 07/25/2011 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: July 25, 2011 Frequency Coordination and Interference Analysis Report 07/25/2011 Page 10 of 10


Document Created: 2011-07-25 09:50:37
Document Modified: 2011-07-25 09:50:37
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