Attachment Coordination

This document pretains to SES-LIC-INTR2019-00520 for License on a Satellite Earth Station filing.

IBFS_SESLICINTR201900520_1631421

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Pacific Public Media TACOMA, WA Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 February 27, 2019

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 02/27/2019 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. Operation will be restricted to the bandwidth shown in Section 4 of this report. Frequency Coordination and Interference Analysis Report 02/27/2019 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. Existing shielding by buildings or other structures were included OH loss calculations 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 blockage or frequency separation exists to negate harmful interference from occurring with the proposed transmit-only earth station. Company City of Tacoma / Tacoma Public Utilities King, County of Northwest Pipeline GP Puget Sound Energy, Inc Puyallup, City of Pierce County Verizon Wireless (VAW) LLC - (WA) No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 02/27/2019 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. Company Accel Net, Inc. Bearclaw, LLC Boeing Company Cencom - Kitsap 911 CenturyTel of Cowiche, Inc. CenturyTel of Washington, Inc. City of Tacoma / Tacoma Public Utilities Community Transit Snohomish County PTBA Eastside Public Safety Com Agency Frontier Communications Northwest Inc. Grays Harbor, County of Inland Cellular LLC King County DOT Metro Transit Division King, County of McDaniel Cellular Telephone Company New Cingular Wireless PCS LLC-Washington Noel Communications, Inc. Northwest Pipeline GP Olympic Wireless, LLC Pick Two LLC Pierce County Port of Seattle Public Util Dist. #1 of Snohomish County Puget Sound Energy, Inc Puyallup, City of Qwest Corporation Seattle City Light Seattle SMSA Limited Partnership Seattle, City of Silke Communications, Inc. Skagit 911 Snohomish County Emergency Radio System Startouch, Inc. Thurston 9-1-1 Communications Tribune Broadcasting Seattle, LLC USCOC of Washington 4 Inc. Verizon Wireless (VAW) LLC - (WA) Washington State Military Dept, Emerg. M Washington State of Dept of Transportat Washington, State of Whidbey Telephone Co Yakima MSA Limited Partnership Frequency Coordination and Interference Analysis Report 02/27/2019 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 02/27/2019 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 02/27/2019 Job Number: 190227COMSTC10 Administrative Information Licensee Code FRI885 Licensee Name Pacific Public Media Site Information TACOMA, WA Latitude (NAD 83) 47° 15' 15.3" N Longitude (NAD 83) 122° 26' 26.6" W Climate Zone A Rain Zone 3 Ground Elevation (AMSL) 41.15 m / 135.0 ft Link Information Satellite Type Geostationary Mode TO - Transmit-Only Modulation Digital Satellite Arc 58° W to 139° West Longitude Azimuth Range 109.4° to 202.0° Corresponding Elevation Angles 8.4° / 33.3° Antenna Centerline (AGL) 16.15 m / 53.0 ft Antenna Information Transmit Manufacturer PRODELIN CORPORATION Model 1385 Gain / Diameter 46.0 dBi / 3.8 m 3-dB / 15-dB Beamwidth 1.00° / 2.00° 30K0G7W - 500KG7W Max Available RF Power (dBW/4 kHz) -14.0 -14.0 (dBW/MHz) 10.0 10.0 Maximum EIRP (dBW/4 kHz) 32.0 32.0 (dBW/MHz) 32.0 32.0 (dBW) 40.75 52.97 Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Frequency Information Transmit 6.1 GHz Emission / Frequency Range (MHz) 30K0G7W - 500KG7W / 5925.0 - 6078.47 Band Edges 30K0G7W - 500KG7W / 6088.67 - 6137.0 Band Edges 30K0G7W - 500KG7W / 6168.0 - 6211.0 Band Edges 30K0G7W - 500KG7W / 6242.0 - 6300.0 Band Edges 30K0G7W - 500KG7W / 6406.0 - 6425.0 Band Edges Max Great Circle Coordination Distance 196.5 km / 122.1 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 02/27/2019 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 TACOMA, WA Licensee Name Pacific Public Media Latitude (NAD 83) 47° 15' 15.3" N Longitude (NAD 83) 122° 26' 26.6" W Ground Elevation (AMSL) 41.15 m / 135.0 ft Antenna Centerline (AGL) 16.15 m / 53.0 ft Antenna Mode Transmit 6.1 GHz Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Max Available RF Power -14.0 (dBW/4 kHz) Transmit 6.1 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.00 109.14 -10.00 132.84 5 0.00 104.20 -10.00 132.84 10 0.54 99.27 -10.00 106.90 15 0.82 94.32 -10.00 100.00 20 0.88 89.36 -10.00 100.00 25 0.90 84.40 -10.00 100.00 30 0.85 79.45 -10.00 100.00 35 0.93 74.49 -10.00 100.00 40 0.78 69.55 -10.00 100.00 45 0.67 64.61 -10.00 100.87 50 0.80 59.65 -10.00 100.00 55 0.77 54.72 -10.00 100.00 60 0.68 49.80 -9.96 100.45 65 0.70 44.88 -8.98 102.40 70 0.62 40.00 -8.00 108.32 75 0.53 35.14 -7.03 115.16 80 0.52 30.31 -5.12 120.87 85 0.53 25.53 -3.21 126.00 90 0.30 20.93 -1.37 148.70 95 0.00 16.60 1.72 172.29 100 0.00 12.56 4.44 182.82 105 0.00 9.48 7.52 194.69 110 0.00 8.45 8.00 196.51 115 0.00 10.13 6.87 192.18 120 0.00 13.21 3.79 180.33 125 0.00 16.23 2.01 173.43 130 0.00 19.15 -0.32 162.77 135 0.33 21.64 -1.65 144.40 140 0.84 23.81 -2.52 113.65 145 0.71 26.30 -3.52 116.45 150 0.60 28.57 -4.43 119.05 155 0.73 30.35 -5.14 111.34 160 0.79 31.90 -5.76 106.65 165 0.71 33.27 -6.31 108.94 170 0.80 34.13 -6.65 103.95 175 0.89 34.61 -6.84 100.00 180 0.83 34.86 -6.94 101.70 185 0.84 34.66 -6.86 101.59 Frequency Coordination and Interference Analysis Report 02/27/2019 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 TACOMA, WA Licensee Name Pacific Public Media Latitude (NAD 83) 47° 15' 15.3" N Longitude (NAD 83) 122° 26' 26.6" W Ground Elevation (AMSL) 41.15 m / 135.0 ft Antenna Centerline (AGL) 16.15 m / 53.0 ft Antenna Mode Transmit 6.1 GHz Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Max Available RF Power -14.0 (dBW/4 kHz) Transmit 6.1 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 1.24 33.70 -6.48 100.00 195 1.84 32.19 -5.87 100.00 200 2.17 31.22 -5.49 100.00 205 2.44 31.02 -5.41 100.00 210 2.72 31.53 -5.61 100.00 215 2.82 32.90 -6.16 100.00 220 2.99 34.81 -6.92 100.00 225 3.17 37.23 -7.45 100.00 230 3.34 40.09 -8.02 100.00 235 3.52 43.28 -8.66 100.00 240 3.69 46.74 -9.35 100.00 245 3.80 50.45 -10.00 100.00 250 3.93 54.31 -10.00 100.00 255 4.01 58.32 -10.00 100.00 260 3.99 62.45 -10.00 100.00 265 4.02 66.65 -10.00 100.00 270 4.10 70.88 -10.00 100.00 275 4.01 75.20 -10.00 100.00 280 4.06 79.52 -10.00 100.00 285 4.10 83.86 -10.00 100.00 290 3.99 88.22 -10.00 100.00 295 3.95 92.58 -10.00 100.00 300 3.86 96.92 -10.00 100.00 305 3.63 101.23 -10.00 100.00 310 3.46 105.51 -10.00 100.00 315 3.25 109.73 -10.00 100.00 320 3.01 113.88 -10.00 100.00 325 2.77 117.94 -10.00 100.00 330 2.43 121.86 -10.00 100.00 335 1.96 125.58 -10.00 100.00 340 1.36 129.00 -10.00 100.00 345 0.60 123.99 -10.00 103.93 350 0.00 119.01 -10.00 132.84 355 0.00 114.07 -10.00 132.84 Frequency Coordination and Interference Analysis Report 02/27/2019 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: February 27, 2019 Frequency Coordination and Interference Analysis Report 02/27/2019 Page 10 of 10


Document Created: 2019-02-27 15:42:06
Document Modified: 2019-02-27 15:42:06
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC