Attachment HDNetFreqCoor

This document pretains to SES-MOD-20190716-00927 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2019071600927_1787542

EXHIBIT A Page 1 of 10 FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT PREPARED FOR HDNet, LLC DENVER, COLORADO SATELLITE EARTH STATION PREPARED BY COMSEARCH 19700 JANELIA FARM BOULEVARD ASHBURN, VIRGINIA 20147 JULY 15, 2002

EXHIBIT A Page 2 of 10 TABLE OF CONTENTS CcONCLUSIONS SUMMARY OF RESULTS SUPPLEMENTAL SHOWING, RE: PART 25.203(C) EARTH STATION COORDINATION DATA CERTIFICATION

EXHIBIT A Page 3 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.

EXHIBIT A Page 4 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 TN1I0OL (REVISED) TECHNIQUES. THE LOSSES WERE FOUND TO BE SUFFICIENT TO REDUCE THE SIGNAL LEVELS TO ACCEPTABLE MAGNITUDES IN EVERY CASE. THE FOLLOWING COMPANIES REPORTED POTENTIAL GREAT CIRCLE INTERFERENCE CONFLICTS WHICH DID NOT MEET THE OBJECTIVES ON A LINE—OF—SIGHT BASIS. WHEN OVER—THE—HORIZON LOSSES ARE CONSIDERED ON THE INTERFERING PATHS, SUFFICIENT BLOCKAGE EXISTS TO NEGATE HARMFUL INTERFERENCE FROM OCCURRING WITH THE PROPOSED TRANSMIT AND RECEIVE EARTH STATION. QWEST COMMUNICATIONS INTERNATIONAL, INC BACKLINK, LLC (DEBTOR—IN—POSSESSION) AT&T WIRELESS SERVICES OF COLORADO, LLC NO OTHER CARRIERS REPORTED POTENTIAL INTERFERENCE CASES.

EXHIBIT A Page 5 of 10 3. SUPPLEMENTAL SHOWING RE: PART 25.203(C) 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 MAY 24, 2002. AT&T COMMUNICATIONS OF MOUNTAIN STATES AT&T CORP. AT&T Wireless Services of Colorado, LLC BACKLINK LLC (debtor—in—possession) BASIN ELECTRIC POWER COOPERATIVE BOULDER REGIONAL COMMUNICATIONS CENTER COLORADO INTERSTATE GAS COMPANY COLORADO SPRINGS UTILITIES—BIS TELECOMMU COLORADO STATE TELECOMMUNICATIONS SVCS CORBAN COMMUNICATIONS INC. FONES WEST DIGITAL SYSTEMS INC. GREAT PLAINS CABLE TELEVISION LARIMER COUNTY SHERIFF!‘S DEPARTMENT LB Tower Company LLC MCI WORLDCOM NETWORK SERVICES INC NE COLORADO CELLULAR INC PATHNET, INC. — DEBTOR IN POSSESSION PLATTE RIVER POWER AUTHORITY QWEST COMMUNICATIONS INTERNATIONAL INC. SMOKY HILL CELLULAR OF COLORADO LP SPRINT COMMUNICATIONS CO., LP THE BURLINGTON NORTHERN AND SANTA FE TRI STATE GENERATION & TRANSMISSION ASSN UA CABLE OF CENTRAL WYOMING — CASPER VERIZON WIRELESS (VAW) LLC VOICESTREAM PCS II LICENSE CORPORATION wWWC HOLDING CO., INC. Xcel Energy Services Inc

EXHIBIT A Page 6 of 10 4. EARTH STATION COORDINATION DATA THIS SECTION PRESENTS THE DATA PERTINENT TO FREQUENCY COORDINATION OF THE PROPOSED EARTH STATION WHICH WAS CIRCULATED TO ALL COMMON CARRIERS WITHIN ITS COOR— DINATION CONTOURS.

EXHIBIT A Page 7 of 10 SATELLITE EARTH STATION FREQUENCY COORDINATION DATA 05/24/2002 Company HDNET, LLC Earth Station Name, State DENVER, CO Latitude (DMS) (NAD83) 39 45 7.6 N Longitude (DMS) (NADS83) 104 53 28.5 W Ground Elevation AMSL (Ft/m) 5315.0 / 1619.94 Antenna Centerline AGL (Ft/m) 20.0 / 6.10 Receive Antenna Type: VERTEX COMMUNICATIONS 9.3 KPC 4.0 GHz Gain (dBi) / Diameter (m) s6.1 / 9.3 3 dB / 15 dB Half Beamwidth 0.26 / 0 .58 Transmit Antenna Type: VERTEX COMMUNICATIONS 9.3 KPC 6.0 GHz Gain (dBi) / Diameter (m) 53.9 / 9.3 3 dB / 15 dB Half Beamwidth 0.17 / 0 .36 Operating Mode TRANSMIT AND RECEIVE Modulation DIGITAL Emission / Receive Band (MHz) 28M8G7TW / 3700.0000 — 4200.0000 Emission / Transmit Band (MHz) 28M8G7TW / 5925.0000 — 6425.0000 Max. Available RF Power (dBW)/4 kHz) —18 .60 (dBw) /MHz) 5.40 Max. EIRP (dBw) /4 kHz) 3820 (dBw) /MHz) 59. 30 Max permissible Interference Power 4.0 GHz, 20% (dBW/1 MHz) —154 .0 4.0 GHz, 0.0100% (dBW/1 MHz) —144.0 6.0 GHz, 20% (dBW/4 kHz) —154.0 6.0 GHz, 0.0025% (dBW/4 kHz) —131.0 Range of Satellite Arc (Geostationary) Degrees Longitude 60.0 w / 143.0 W Azimuth Range (Min/Max) 122.7 / 230 .8 Corresponding Elevation Angles 28—A / 29.7 Radio Climate A Rain Zone 2 Max Great Circle Coordination Distance (Mi/Km) 4.0 GHz 188.9 / 304.0 6.0 GHz 81.9 / 131.7 Precipitation Scatter Contour Radius (Mi/Km) 4.0 GHz 306.4 / 493 .1 6.0 GHz 62.1 / 100 .0

EXHIBIT A Page 8 of 10 Table of Earth Station Coordination Values 05/24/2002 Earth Station Name DENVER CO Owner HDNET, LLC Latitude (DMS) (NADS83) 39 45 7.6 N Longitude (DMS) (NADS83)104 53 28.5 W Ground Elevation (Ft/m) 5315.0 / 1619.94 AMSL Antenna Centerline (Ft/m) 20.0 / 6.10 AGL Antenna Model VERTEX COMMUNICATIONS 9.3 KPC Objectives : Receive —154.0 (dBW /1 MHz) Transmit —154.0 (dBW /4 kHz) TX Power —18.6 (dBW/4 kHz) Azimuth Horizon Antenna 4.0 GHz 6.0 CHz (Deg) Elevation Disc. Antenna Coordination Antenna Coordination Angle Angle Gain Distance Gain Distance (Deg) (Deg) (dBi) (Km) (dBi) (Km) 0 .00 119.28 —10.00 272 .8 =—10.090 120 .6 0 .00 114.89 —10.00 212 .B —10 .00 120 .6 10 0 .00 110 .45 —10.90 272.8 —10.00 120 .6 15 998 105.98 —10.00 272 .8 —10.00 120 .6 20 0 .00 101.48 ~19.00 272.8 —10.00 120 .6 256 0 .00 96.97 =10—00 272 .8 —10 .00 120 .6 30 0 .00 92 .44 —10.00 272 .8 —10.00 120 .6 36 9.00 87.92 —10.00 272.8 ~10. 06 120 .6 40 0 .00 $3,.39 —10.00 272.8 —10.00 120 .6 45 0 .00 78 .88 —10.00 272.8 —19.00 120 .6 50 0 .00 74 .38 —10 .00 272.8 —10.00 120 .6 L5 0 .00 69.91 —10 .00 272 .8 —10.00 120 .6 60 0 .00 65 .47 —10.00 272 .8 ~10.00 120 .6 65 0 .00 61.07 ~10.00 272. 8 —10 .00 120 .6 70 0 .00 56.73 —10.00 272 .8 —10 .00 120 .6 21§ 0 .00 52.46 —10.00 272 .8 —10.00 120 .6 80 0 .00 48 .29 —10.00 272.8 —10.00 120 .6 85 0 .00 44 .25 —~9.15 278 .0 ~8.15 122. 9 90 0 .00 40 .37 —§ .15 284.3 —§8,. 15 125.5 95 0. 22 36.58 —7 .08 288 .2 —7 .08 126.4 100 0.20 33.22 —6.03 297 .6 —6.03 130 .8 105 0 .23 30. 22 —§8.01 301 .4 —5.01 131. 6 110 0.26 27.18 —4 .08 304 .0 —4 .08 1317 1415 0.§% 25.91 —3 .34 301.9 —3.34 129.1 120 0 .36 24.91 2. 9% 298 .5 =3.91 126. 2 125 0 .39 24.84 —2.88 294 .8 —2 .88 123.8 130 0.43 25. 70 —3.25 288 .0 ~3.25 120.1 135 0.54 27 .32 ~3.91 272 .2 —3.91 110.7 140 056 29.74 —4.83 265.0 —4 .83 107 .4 145 0 .53 32 .60 —5$.83 260 .9 ~5.83 106. 2 159 0 .46 35.31 —6.70 262 .1 —6,.70 108 .5 155 0.43 37.69 —7.41 260 .8 —7.41 108 .7 160 0.43 39 .72 =—37 .98 257 .6 —7.98 107 .4 165 0.43 41 .37 —8 .42 258.0 —8 .42 106.2 170 0 .40 42 .61 —8 .74 256.8 —8 .74 108 .0 175 0 .41 43. 35 =8 .92 254 .9 ~—8.92 106.9 180 0.43 43 .57 —8 .98 2§$1. 6 —8 .98 104 .7

EXHIBIT A Page 9 of 10 Table of Earth Station Coordination Values 05/24/2002 Earth Station Name DENVER CO Owner HDNET, LLC Latitude (DMS) (NADS83) 39 45 7.6 N Longitude (DMS) (NAD83)104 53 28.5 W Ground Elevation (Ft/m) 5315.0 / 1619.94 AMSL Antenna Centerline (Ft/m) 20.0 / 6.10 AGL Antenna Model VERTEX COMMUNICATIONS 9.3 KPC Objectives: Receive —154.0 (dBW /1 MHz) Transmit —154.0 (dBW /4 kHz) TX Power —18.6 (dBW/4 kHz) Azimuth Horizon Antenna 4.0 GHz 6.0 GHz (Deg) Elevation Disc. Antenna Coordination Antenna Coordination Angle Angle Gain Distance Gain Distance (Deg) (Deg) (dBi) (Km) (dBi) (Km) 185 0 .44 43 .31 —8 .92 250 .8 —8 .92 104 .0 190 0 .32 42 .68 —8 .76 265 .4 —8 .76 113 .9 195 0 .40 41 .40 —8 .43 259.0 —8 .43 109.0 200 0 .38 39.77 —7.99 263.6 —7.99 111.5 205 0 .37 37.75 "7 « 42 267 .7 —7 A2 113 .4 210 0 .49 35 .28 —6 .69 258 .5 —6 .69 106.0 215 0 .41 32 .92 —5 .94 272.3 —5 .94 114 .2 220 0 .46 30 .98 —5 .28 270 .4 —5 .28 111.8 225 0.43 29.77 —4 .84 277 .4 —4 .84 115.8 230 0 .36 29.32 —4 .68 28 6.5 —4 .68 121.5 235 0 .35 29.59 —4 .78 287.1 —4 .78 122 .1 240 0 .36 30. 60 —5.14 283.8 —5.14 120 .5 245 0.32 32 .33 —5 .74 285.3 —5 .74 122 .4 250 0 .00 34 .86 —~£, 56 294 .6 —6.56 129.7 255 0 .00 37.58 —7.37 289.3 —7 .37 127 .5 260 0 .00 40 .67 —8 .23 283.8 —8 .23 125.3 265 0 .00 44 .05 —9.10 278 .3 —9.10 123.0 270 0 .00 47 .67 —9.96 273.1 —9 .96 120 .8 275 0 .00 51 .47 —10.00 272 .8 —10 .00 120 .6 280 0.00 55.40 —10.00 272 .8 —10 .00 120 .6 285 0.00 59.45 —10 .00 272 .8 —10 .00 120 .6 290 0 .00 63.58 —10 .00 272 .8 —10 .00 120 .6 295 0 .00 67.77 —10 .00 272 .8 —10.00 120 .6 300 0 .00 72.02 —10 .00 272 .8 —10 .00 120 .6 305 0 .00 76.31 —10.00 272 .8 —10 .00 120 .6 310 0 .00 80 .62 —10.00 272 .8 —10 .00 120 .6 315 0 .00 84 .96 —10 .00 272 .8 ~10.00 120 .6 320 0 .00 89 .30 —10 .00 272 .8 —10.00 120 .6 325 0 .00 93 .64 —10 .00 272 .8 —10.00 120 .6 330 0 .00 97 .98 —10 .00 272 .8 —10.00 120 .6 335 0 .00 102 .30 —10 .00 272 .8 —10 .00 120 .6 340 0 .00 106. 60 —~10 .00 272 .8 —10.00 120 .6 345 0 .00 110 .86 —10 .00 272 .8 —10.00 120 .6 350 0 .00 115.07 —10.00 272 .8 —10.00 120 .6 355 0 .00 119.23 —10 .00 272 .8 —10.00 120 .6

EXHIBIT A Page 10 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. %/ma £. Gaybe»r" BY: JEFFREY E. COWLES SENIOR FREQUENCY COORDINATOR COMSEARCH 19700 JANELIA FARM BOULEVARD ASHBURN, VIRGINIA 20147 DATE: _15,



Document Created: 2019-10-04 08:22:08
Document Modified: 2019-10-04 08:22:08
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