Attachment EMC_MiamiKA412.pdf

EMC_MiamiKA412.pdf

REPORT submitted by Towerstream Corp

Interference Analysis Report submitted by Dee Herman 11-18-2014

0000-00-00

This document pretains to SES-AMD-20140502-00330 for Amended Filing on a Satellite Earth Station filing.

IBFS_SESAMD2014050200330_1069377

Interference Analysis Report An Assessment of the Impact of Radiolocation Systems Operating in 3.1-3.7 GHz Band on Fixed Satellite Services Earth Station Receiver Prepared for Towerstream Corp. TRANSMIT-RECEIVE EARTH STATION (2.4 METER) FCC CALL SIGN: KA412 Site Name: Miami, Florida Prepared By November 17, 2014 19700 Janelia Farm Blvd.• Ashburn, VA 20147 USA • 703.726.5500

1.0 Introduction Interference calculations were performed to determine the potential for in-band and out-of-band interference from Radiolocation Systems operating in the 3.1 to 3.7 GHz band1. The geographical positions and operating parameters of these systems were derived from NTIA Document TR-99-3612. 2.0 Radiolocation Systems in the 3.1 – 3.7 GHz Band High powered mobile and fixed radar systems operated by the Federal Government operate in the 3.1 – 3.7 GHz band. These radars are used to search for, and track, near-surface and high-altitude airborne projectiles, sea surveillance and airborne objects. The NTIA report referenced above has identified the locations for two types of systems: land-based and shipboard based. Also included in the report are the operating characteristics of these radars. There are two prevalent types of shipboard radars, denoted as type A and Type B, and one type of ground-based radar. An Airborne System radar is also specified. This analysis will concern itself with interference from the ground based and shipboard based radars based upon the relative operating positions and parameters specified in the NTIA report. A summary of the operating parameters for the shipboard and ground based radar systems is shown below: Table 1 – Technical Characteristics of 3.1-3.7 GHz Radiolocation Systems Characteristic Shipboard System A Shipboard System B Ground Based System Modulation P0N Q7N P0N Tuning Range (GHz) 3.5-3.7 3.1-3.5 3.1-3.4 Peak transmit Power 1 4 0.12 (MW) Pulse Width (µsec.) 1.0 3.5-51.2 10.75 Pulse Repetition Rate 1.125 0.152-6.0 2793.3-5050.51 (kHz) Duty Cycle (%) 0.001 0.8-2.0 0.041 Transmit 3-dB 4,16.6 4 1,10 Bandwidth (MHz) Antenna Type Reflector Phased Array Phase Scan Array Antenna Mainbeam 32 42 36 Gain (dBi) Antenna Centerline (m) 46 20 46 1 This report is being provided as required under Footnote US 245. 2 National Telecommunications and Information Administration, U.S. DEPARTMENT OF COMMERCE, NTIA Report TR 99-361, TECHNICAL CHARACTERISTICS OF RADIOLOCATION SYSTEMS OPERATING IN THE 3.1-3.7 GHz BAND AND PROCEDURES FOR ASSESSING EMC WITH FIXED EARTH STATION RECEIVERS, (December 1999). Interference Analysis Report for Miami, Florida

3.0 Earth Station System Parameters The Fixed Satellite Service Earth Station’s operational parameters are shown in the Tables 2 and 3 below: TABLE 2 - SATELLITE EARTH STATION PARAMETERS AND COORDINATION DATA Administrative Information Status ENGINEER PROPOSAL Call Sign KA412 Licensee Code TOWSTR Licensee Name Towerstream Corp Site Information MIAMI, FL Venue Name Latitude (NAD 83) 25° 48' 35.0" N Longitude (NAD 83) 80° 21' 11.0" W Climate Zone B Rain Zone 1 Ground Elevation (AMSL) 1.83 m / 6.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Analog Satellite Arc 6° W to 60° West Longitude Azimuth Range 97.0° to 139.6° Corresponding Elevation Angles 5.4° / 52.3° Antenna Centerline (AGL) 11.89 m / 39.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Prodelin Prodelin Model 1244 1244 Gain / Diameter 38.0 dBi / 2.4 m 42.0 dBi / 2.4 m 3-dB / 15-dB Beamwidth 0.01° / 0.02° 0.02° / 0.03° Max Available RF Power (dBW/4 kHz) -13.6 (dBW/MHz) 10.4 Maximum EIRP (dBW/4 kHz) 28.4 (dBW/MHz) 52.4 Interference Objectives: Long Term -158.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -148.0 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) 3M17G7D / 3625.0 - 4200.0 3M17G7D / 5850.0 - 6018.0 3M17G7D / 6109.0 - 6126.0 3M17G7D / 6178.0 - 6240.0 3M17G7D / 6272.0 - 6425.0 Max Great Circle Coordination Distance 863.3 km / 536.4 mi 278.5 km / 173.0 mi Precipitation Scatter Contour Radius 720.3 km / 447.5 mi 100.0 km / 62.1 mi Interference Analysis Report for Miami, Florida

TABLE 3 - TABLE OF EARTH STATION COORDINATION VALUES (continued) Coordination Values MIAMI, FL Licensee Name Towerstream Corp Latitude (NAD 83) 25° 48' 35.0" N Longitude (NAD 83) 80° 21' 11.0" W Ground Elevation (AMSL) 1.83 m / 6.0 ft Antenna Centerline (AGL) 11.89 m / 39.0 ft Antenna Model Prodelin 2.4 Meter Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -158.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -148.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Max Available RF Power -13.6 (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 96.92 -10.00 437.80 -10.00 147.64 5 0.00 91.95 -10.00 437.80 -10.00 147.64 10 0.00 86.97 -10.00 437.80 -10.00 147.64 15 0.00 81.99 -10.00 437.80 -10.00 147.64 20 0.00 77.01 -10.00 437.80 -10.00 147.64 25 0.00 72.04 -10.00 437.80 -10.00 147.64 30 0.00 67.06 -10.00 437.80 -10.00 147.64 35 0.00 62.09 -10.00 437.80 -10.00 147.64 40 0.00 57.12 -10.00 437.80 -10.00 147.64 45 0.00 52.15 -10.00 437.80 -10.00 147.64 50 0.00 47.19 -9.85 439.83 -9.85 148.13 55 0.00 42.24 -8.64 456.09 -8.64 153.07 60 0.00 37.29 -7.29 474.43 -7.29 158.89 65 0.00 32.36 -5.75 497.02 -5.75 165.88 70 0.00 27.45 -3.96 524.56 -3.96 174.46 75 0.00 22.58 -1.84 559.14 -1.84 185.32 80 0.00 17.77 0.76 604.27 0.76 199.97 85 0.00 13.10 4.07 665.61 4.07 219.49 90 0.00 8.79 8.40 754.84 8.40 247.17 95 0.00 5.73 13.04- 863.29 13.04 278.47 100 0.00 6.19 12.21 843.62 12.21 272.20 105 0.00 9.68 7.36 732.56 7.36 240.30 110 0.00 14.05 3.31 650.92 3.31 214.89 115 0.00 18.45 0.35 596.91 0.35 197.64 120 0.00 22.82 -1.96 557.19 -1.96 184.70 125 0.00 27.13 -3.84 526.58 -3.84 175.09 130 0.00 31.37 -5.41 502.11 -5.41 167.46 135 0.00 35.52 -6.76 482.06 -6.76 161.24 140 0.00 39.55 -7.93 465.38 -7.93 156.11 145 0.00 43.42 -8.94 451.97 -8.94 151.81 150 0.00 47.09 -9.82 440.12 -9.82 148.22 155 0.00 50.50 -10.00 437.80 -10.00 147.64 160 0.00 53.55 -10.00 437.80 -10.00 147.64 165 0.00 56.14 -10.00 437.80 -10.00 147.64 170 0.00 58.14 -10.00 437.80 -10.00 147.64 175 0.00 60.08 -10.00 437.80 -10.00 147.64 180 0.00 62.23 -10.00 437.80 -10.00 147.64 Interference Analysis Report for Miami, Florida

TABLE 3 - TABLE OF EARTH STATION COORDINATION VALUES (continued) Coordination Values MIAMI, FL Licensee Name Towerstream Corp Latitude (NAD 83) 25° 48' 35.0" N Longitude (NAD 83) 80° 21' 11.0" W Ground Elevation (AMSL) 1.83 m / 6.0 ft Antenna Centerline (AGL) 11.89 m / 39.0 ft Antenna Model Prodelin 2.4 Meter Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -158.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -148.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Max Available RF Power -13.6 (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 0.00 64.56 -10.00 437.80 -10.00 147.64 190 0.00 67.05 -10.00 437.80 -10.00 147.64 195 0.00 69.68 -10.00 437.80 -10.00 147.64 200 0.00 72.42 -10.00 437.80 -10.00 147.64 205 0.00 75.26 -10.00 437.80 -10.00 147.64 210 0.00 78.17 -10.00 437.80 -10.00 147.64 215 0.00 81.14 -10.00 437.80 -10.00 147.64 220 0.00 84.16 -10.00 437.80 -10.00 147.64 225 0.00 87.20 -10.00 437.80 -10.00 147.64 230 0.00 90.26 -10.00 437.80 -10.00 147.64 235 0.00 93.32 -10.00 437.80 -10.00 147.64 240 0.00 96.36 -10.00 437.80 -10.00 147.64 245 0.00 99.37 -10.00 437.80 -10.00 147.64 250 0.00 102.34 -10.00 437.80 -10.00 147.64 255 0.00 105.24 -10.00 437.80 -10.00 147.64 260 0.00 108.06 -10.00 437.80 -10.00 147.64 265 0.00 110.78 -10.00 437.80 -10.00 147.64 270 0.00 113.39 -10.00 437.80 -10.00 147.64 275 0.00 115.85 -10.00 437.80 -10.00 147.64 280 0.00 118.15 -10.00 437.80 -10.00 147.64 285 0.00 120.27 -10.00 437.80 -10.00 147.64 290 0.00 122.17 -10.00 437.80 -10.00 147.64 295 0.00 123.83 -10.00 437.80 -10.00 147.64 300 0.00 125.22 -10.00 437.80 -10.00 147.64 305 0.00 126.33 -10.00 437.80 -10.00 147.64 310 0.00 127.13 -10.00 437.80 -10.00 147.64 315 0.00 127.60 -10.00 437.80 -10.00 147.64 320 0.00 127.74 -10.00 437.80 -10.00 147.64 325 0.00 127.54 -10.00 437.80 -10.00 147.64 330 0.00 126.76 -10.00 437.80 -10.00 147.64 335 0.00 121.80 -10.00 437.80 -10.00 147.64 340 0.00 116.83 -10.00 437.80 -10.00 147.64 345 0.00 111.85 -10.00 437.80 -10.00 147.64 350 0.00 106.88 -10.00 437.80 -10.00 147.64 355 0.00 101.90 -10.00 437.80 -10.00 147.64 Interference Analysis Report for Miami, Florida

4.0 Interference Calculations The interference was calculated into the earth station receive system for both in-band and out-of-band interference. The interference power level was calculated using the formula below: Pr = Pt + Gt – FSL – OHLOSS + Ges – LLt - LLes Where: Pr : Interference power level received at victim earth station, in dBW Pt: Transmitter power of Radiolocation system, in dBW Gt: Gain of Radiolocation transmit system, in dBi FSL: Free Space Loss between radiolocation system and earth station, in dB OHLOSS: Over-the-Horizon losses between radiolocation system and earth station, in dB Ges: Horizon gain of the earth station toward radiolocation transmitter, in dBi LLt: Line losses of the radiolocation system, in dB (assume 2dB per NTIA report) LLes: Line losses of the earth station system, in dB (assume 0 dB unless known) This interference power level was then compared to in-band and out-of-band interference criteria. The in-band criteria was developed using ITU and FCC recommendations3. The out-of-band interference criteria was developed using the following: The earth station’s low –noise amplifier front-end overload criteria of was determined using the following calculations: T=C–G Where: T = input threshold at which front-end overload occurs, dBW C = output 1 dB gain compression point of the LNA, typical -20 dBW G = Gain of the LNA, dB For the purposes of this report it was assumed that the low-noise amplifier would not provide any out-of-band frequency rejection, thus no Frequency Dependent Rejection values based upon any RF selectivity, such as pre-LNA filtering or inherent LNA filtering, have been assumed. The maximum level of interference includes the input saturation threshold value minus a 10 dB output backoff value to consider in operation levels The maximum interference power receive, Pr, allowable then becomes: Max Pr > T - IPBO For a 65 dB gain LNA this value is -95 dBW. In the absence of manufacturer LNA/LNB specifications the following typical values have been used: T = -95 dBW C = -20 dBW G = 65 dB The propagation model to determine the over-the-horizon loss is the NSMA OH-Loss model4. When the propagation link is very lengthy, over 250 miles, an estimated OH-loss using a rounded earth modeling value has been used. 3 FCC Rules 47CFR25.251 by reference ITU Radio Regulations Appendix S7. 4 National Spectrum Managers Association has developed an industry accepted version which incorporates NBS Tech Note 101. Interference Analysis Report for Miami, Florida

5.0 Summary of Results The summary calculations are shown for all shipboard based and land based systems in Tables 4 through 8 below. Whenever Radar A and B are possibly in use, the interference calculations have assumed the higher powered systems (Radar B). The antenna elevation for the Ground Based systems was assumed to be 46 m even though it was not specified in the NTIA report. Interference Analysis Report for Miami, Florida

Table 4 Shipboard Radar A Land-Based Test and Training Sites Profile (Is path Profiled Total Interfering under Estimated OH- Path Power Out-of Bearing Distance 250 FSL OH-Loss Loss Loss Level In-Band Band Radar Location Lat (N) Lon (w) (deg.) (mi) miles?) (dB) (dB) (dB) (dB) (dBW/MHz) Interference? Overload? Pensacola, FL 302128 0871626 308.2 526.1 NO -162.2 -72.4 N/A -234.7 -184.7 NO NO Pascagoula, MS 302200 0882900 304.2 587.4 NO -163.2 -74.3 N/A -237.5 -187.5 NO NO St.Inigoes, MD 381000 0762300 14.3 882.7 NO -166.7 -58.0 -58 -224.7 -174.7 NO NO Table 5 Shipboard Radar B Land-Based Test and Training Sites Profile (Is path Profiled Total Interfering under Estimated OH- Path Power Out-of Bearing Distance 250 FSL OH-Loss Loss Loss Level In-Band Band Radar Location Lat (N) Lon (w) (deg.) (mi) miles?) (dB) (dB) (dB) (dB) (dBW/MHz) Interference? Overload? Moorestown, NJ 395849 0745630 16.4 1025.9 NO -168.0 -65.0 -65 -233.0 -167.0 NO NO Wallops Island, VA 375600 0752800 17.7 883.3 NO -166.7 -62.0 -62 -228.7 -162.7 NO NO Table 6 Shipboard Radars A and B Home Ports Profile (Is path Profiled Total Interfering under Estimated OH- Path Power Out-of Bearing Distance 250 FSL OH-Loss Loss Loss Level In-Band Band Radar Location Lat (N) Lon (w) (deg.) (mi) miles?) (dB) (dB) (dB) (dB) (dBW/MHz) Interference? Overload? Bath, ME 435425 0694848 22.6 1383.8 NO -170.6 -89.2 N/A -259.9 -193.8 NO NO Bremerton, WA 473324 1223811 315.2 2786.3 NO -176.7 -101.4 N/A -278.1 -212.1 NO NO Everett, WA 475858 1221354 316.0 2778.1 NO -176.7 -101.3 N/A -278.0 -212.0 NO NO Mayport, FL 302334 0812427 348.7 322.1 NO -158.0 -63.9 N/A -221.9 -155.9 YES NO Norfolk, VA 365200 0762100 16.2 797.7 NO -165.9 -64.6 -64.6 -230.5 -164.4 NO NO Pascagoula, MS 302253 0882933 304.3 588.3 NO -163.2 -74.4 N/A -237.6 -171.6 NO NO Pearl Harbor, HI 212000 1580000 281.9 4935.1 NO -181.7 -111.3 N/A -293.0 -227.0 NO NO Portland, ME 434100 0701800 22.0 1358.3 NO -170.5 -88.9 N/A -259.4 -193.4 NO NO San Diego CA 324105 1170800 291.0 2271.5 NO -174.9 -97.8 -73.3 -272.8 -206.8 NO NO Interference Analysis Report for Miami, Florida

Table 7 Naval At-Sea Operational Areas Profile (Is path Profiled Total Interfering Out-of under Estimated OH- Path Power In-Band Band Bearing Distance 250 FSL OH-Loss Loss Loss Level Interference Overload Operational Area Lat (N) Lon (w) (deg.) (mi) miles?) (dB) (dB) (dB) (dB) (dBW/MHz) ? ? AFWTF (North Range) AFWTF (NR)1 183000 0670000 117.9 992.7 NO -167.8 -83.5 N/A -251.2 -177.2 NO NO AFWTF (NR)2 200000 0670000 112.6 940.5 NO -167.3 -82.5 N/A -249.8 -170.5 NO NO AFWTF (NR)3 221000 0654800 102.3 953.8 NO -167.4 -82.8 N/A -250.2 -161.9 NO NO AFWTF (NR)4 221000 0652000 101.7 982.3 NO -167.7 -83.3 N/A -250.9 -162.7 NO NO AFWTF (NR)5 185000 0620000 108.7 1269.2 NO -169.9 -87.7 N/A -257.6 -178.3 NO NO AFWTF (NR)6 185000 0620000 108.7 1269.2 NO -169.9 -87.7 N/A -257.6 -178.3 NO NO AFWTF (NR)7 182500 0643000 113.6 1136.6 NO -168.9 -85.8 N/A -254.7 -175.4 NO NO AFWTF (NR)8 183000 0644500 113.8 1119.4 NO -168.8 -85.5 N/A -254.3 -175.0 NO NO AFWTF (NR)9 183000 0663800 117.2 1013.0 NO -167.9 -83.8 N/A -251.7 -177.7 NO NO AFWTF (South Range) AFWTF (SR)1 180500 0675500 121.3 959.1 NO -167.5 -82.9 N/A -250.3 -176.3 NO NO AFWTF (SR)2 180500 0652700 116.3 1094.4 NO -168.6 -85.2 N/A -253.8 -179.7 NO NO AFWTF (SR)3 181500 0651000 115.2 1104.4 NO -168.7 -85.3 N/A -254.0 -179.9 NO NO AFWTF (SR)4 181500 0641000 113.6 1161.4 NO -169.1 -86.2 N/A -255.3 -176.0 NO NO AFWTF (SR)5 170000 0641000 117.2 1206.2 NO -169.4 -86.8 N/A -256.3 -182.2 NO NO AFWTF (SR)6 165800 0642800 117.8 1190.8 NO -169.3 -86.6 N/A -256.0 -181.9 NO NO AFWTF (SR)7 153300 0660600 124.9 1161.7 NO -169.1 -86.2 N/A -255.3 -181.2 NO NO AFWTF (SR)8 153900 0662300 125.2 1142.8 NO -169.0 -85.9 N/A -254.9 -184.3 NO NO AFWTF (SR)9 163000 0662300 122.9 1105.9 NO -168.7 -85.3 N/A -254.0 -180.0 NO NO AFWTF (SR)10 163000 0675500 126.3 1026.8 NO -168.0 -84.0 N/A -252.1 -181.5 NO NO Interference Analysis Report for Miami, Florida

Table 7 Naval At-Sea Operational Areas (continued) Profile (Is Profiled Total Interfering path under Estimated OH- Path Power In-Band Out-of Bearing Distance 250 FSL OH-Loss Loss Loss Level Interference Band Operational Area Lat (N) Lon (w) (deg.) (mi) miles?) (dB) (dB) (dB) (dB) (dBW/MHz) ? Overload? AUTEC AUTEC1 252000 0780500 102.5 145.5 YES -151.1 -52.0 -52 -203.1 -114.8 YES NO AUTEC2 252000 0774500 100.8 165.8 YES -152.2 -54.3 -54.3 -206.5 -118.3 YES NO AUTEC3 232500 0762000 122.2 301.8 NO -157.4 -62.8 N/A -220.2 -146.2 YES NO AUTEC4 232500 0771500 129.5 255.4 NO -156.0 -59.9 N/A -215.8 -145.2 YES NO FORACS, Hawaii FORACS, Hawaii1 212530 1581100 282.1 4944.6 NO -181.7 -111.3 N/A -293.1 -227.0 NO NO FORACS, Hawaii2 212100 1581500 282.0 4950.5 NO -181.7 -111.4 N/A -293.1 -227.1 NO NO FORACS, Hawaii3 211500 1580800 281.9 4945.4 NO -181.7 -111.4 N/A -293.1 -227.0 NO NO FORACS, Hawaii4 211500 1580700 281.9 4944.4 NO -181.7 -111.3 N/A -293.0 -227.0 NO NO Gulf of Mexico OPAREA GoM1 293601 0800130 4.3 261.8 NO -156.2 -60.3 N/A -216.5 -150.5 YES NO GoM2 292521 0864800 303.7 467.2 NO -161.2 -70.4 N/A -231.6 -165.5 NO NO GoM3 284101 0864800 298.0 443.3 NO -160.8 -69.5 N/A -230.2 -164.2 NO NO GoM4 285231 0874400 296.6 500.5 NO -161.8 -71.6 N/A -233.4 -167.3 NO NO Pacific Missile Range Facility (PMRF) PMRF1 220000 1594500 283.1 5030.5 NO -181.9 -111.6 N/A -293.5 -227.5 NO NO PMRF2 220800 1620000 283.8 5169.6 NO -182.1 -112.1 N/A -294.2 -228.2 NO NO PMRF3 224500 1614000 284.4 5134.3 NO -182.0 -112.0 N/A -294.0 -228.0 NO NO PMRF4 260000 1581500 287.2 4850.0 NO -181.5 -111.0 N/A -292.5 -226.5 NO NO Pearl Harbor South OPAREA PHS1 190800 1591500 279.9 5066.4 NO -181.9 -111.8 N/A -293.7 -227.7 NO NO PHS2 210000 1580800 281.6 4951.2 NO -181.7 -111.4 N/A -293.1 -227.1 NO NO PHS3 210000 1573600 281.5 4917.4 NO -181.7 -111.3 N/A -292.9 -226.9 NO NO PHS4 191800 1562000 279.3 4876.7 NO -181.6 -111.1 N/A -292.7 -226.7 NO NO PHS5 184900 1574500 279.1 4978.5 NO -181.8 -111.5 N/A -293.2 -227.2 NO NO Interference Analysis Report for Miami, Florida

Table 7 Naval At-Sea Operational Areas (continued) Profile (Is path Total Interfering under Estimated Profiled Path Power Out-of Bearing Distance 250 OH-Loss OH-Loss Loss Level In-Band Band Operational Area Lat (N) Lon (w) (deg.) (mi) miles?) FSL (dB) (dB) (dB) (dB) (dBW/MHz) Interference? Overload? Southern California (SOCAL) SOCAL1 385200 1255200 300.8 2810.4 NO -176.8 -101.5 N/A -278.3 -212.3 NO NO SOCAL2 390000 1240000 301.3 2708.5 NO -176.5 -100.9 N/A -277.4 -211.3 NO NO SOCAL3 311500 1163000 288.3 2230.1 NO -174.8 -97.5 -72.8 -272.3 -206.3 NO NO SOCAL4 300000 1203000 286.1 2472.8 NO -175.7 -99.3 N/A -275.0 -209.0 NO NO Virginia Capes OPAREA VC1 384500 0750000 17.9 945.1 NO -167.3 -61.0 -66 -228.3 -162.3 NO NO VC2 384500 0743000 19.5 955.2 NO -167.4 -66.0 -59.6 -233.4 -167.4 NO NO VC3 374500 0724000 26.8 938.8 NO -167.3 -83.0 -83 -250.3 -184.2 NO NO VC4 350600 0724000 33.7 787.4 NO -165.7 -87.3 N/A -253.0 -187.0 NO NO VC5 320000 0771200 23.4 467.2 NO -161.2 -70.4 N/A -231.6 -165.6 NO NO VC6 342400 0773000 15.4 615.9 NO -163.6 -75.6 N/A -239.2 -173.2 NO NO VC7 354000 0752500 22.1 739.8 NO -165.2 -74.0 -74 -239.2 -173.2 NO NO VC8 370000 0755000 17.9 815.9 NO -166.1 -65.1 -65.1 -231.2 -165.1 NO NO Interference Analysis Report for Miami, Florida

Table 8 Land-Based Radar Test and Training Sites Profile (Is path Total Interfering under Estimated Profiled Path Power Out-of Bearing Distance 250 OH-Loss OH-Loss Loss Level In-Band Band Radar Location Lat (N) Lon (w) (deg.) (mi) miles?) FSL (dB) (dB) (dB) (dB) (dBW/MHz) Interference? Overload? Fort Lewis WA 470525 1223510 314.5 2772.7 NO -176.7 -101.3 N/A -278.0 -212.0 NO NO Yakima Firing WA 464018 1202135 314.6 2657.5 NO -176.3 -100.6 N/A -276.9 -210.9 NO NO Fort Carson CO 383810 1044750 308.2 1682.6 NO -172.3 -92.6 N/A -265.0 -198.9 NO NO Fort Rliey KS 385813 0965139 317.6 1324.3 NO -170.3 -88.5 N/A -258.7 -192.7 NO NO Fort Shafter HI 211800 1574900 281.9 4924.2 NO -181.7 -111.3 N/A -292.9 -226.9 NO NO Hunter AAF GA 320100 0810800 353.9 430.1 NO -160.5 -68.9 N/A -229.4 -163.4 NO NO Fort Gillem GA 333600 0841900 337.0 587.1 NO -163.2 -74.3 N/A -237.5 -171.5 NO NO Fort Benning GA 322130 0845815 329.3 530.5 NO -162.3 -72.6 N/A -234.9 -168.9 NO NO Fort Stewart GA 315145 0813655 349.9 423.8 NO -160.4 -68.7 N/A -229.0 -163.0 NO NO Fort Rucker AL 311947 0854255 320.7 500.8 NO -161.8 -71.6 N/A -233.4 -167.4 NO NO Yuma Proving AZ 330114 1141855 292.0 2107.4 NO -174.3 -96.5 -72.8 -270.8 -204.8 NO NO Fort Hood TX 310830 0974550 293.3 1121.3 NO -168.8 -85.6 N/A -254.4 -188.4 NO NO Fort Knox KY 375350 0855655 339.9 895.5 NO -166.9 -102.6 -102.6 -269.5 -203.4 NO NO Fort Bragg NC 350805 0790035 6.8 647.3 NO -164.0 -83.3 N/A -247.3 -181.3 NO NO Fort Campbell KY 363950 0872820 332.4 858.3 NO -166.5 -98.2 N/A -264.7 -198.7 NO NO Fort Polk LA 310343 0931226 297.9 862.0 NO -166.5 -81.0 N/A -247.5 -181.5 NO NO Fort Leonard MO 374430 0920737 323.0 1075.2 NO -168.4 -84.8 N/A -253.3 -187.3 NO NO Fort Irwin CA 351536 1164102 296.0 2262.1 NO -174.9 -97.8 -68.1 -272.7 -206.7 NO NO Fort Sill OK 344024 0982352 304.0 1240.0 NO -169.7 -87.3 N/A -257.0 -191.0 NO NO Fort Bliss TX 314850 1062533 290.9 1634.6 NO -172.1 -92.1 N/A -264.2 -213.2 NO NO Fort Leavenworth KS 392115 0945500 321.6 1262.1 NO -169.8 -87.6 N/A -257.5 -191.4 NO NO Fort Drum NY 440115 0754844 10.3 1281.5 NO -170.0 -65.6 N/A -235.6 -169.6 NO NO Fort Gordon GA 332510 0820910 348.8 535.2 NO -162.4 -72.7 N/A -235.1 -169.1 NO NO Fort McCoy WI 440636 0904127 338.0 1391.2 NO -170.7 -89.3 N/A -260.0 -194.0 NO NO Fort Dix NJ 400025 0743713 17.3 1033.5 NO -168.1 -61.4 -61.4 -229.5 -163.5 NO NO Parks Reserve CA 374254 1214218 299.5 2568.8 NO -176.0 -100.0 N/A -276.0 -210.0 NO NO Aberdeen Proving MD 392825 0760655 13.6 973.4 NO -167.6 -57.0 -57 -224.6 -158.6 NO NO Fort Huachuca AZ 313500 1102000 289.5 1863.4 NO -173.2 -94.4 N/A -267.6 -216.6 NO NO Fort Monmouth NJ 401900 0740215 18.4 1064.8 NO -168.4 -73.2 -73.2 -241.6 -175.5 NO NO Picatinny Arsenal NJ 405600 0743400 16.2 1094.6 NO -168.6 -70.5 -70.5 -239.1 -173.1 NO NO Interference Analysis Report for Miami, Florida

Table 8 Land-Based Radar Test and Training Sites (continued) Profile (Is path Total Interfering under Estimated Profiled Path Power Out-of Bearing Distance 250 OH-Loss OH-Loss Loss Level In-Band Band Radar Location Lat (N) Lon (w) (deg.) (mi) miles?) FSL (dB) (dB) (dB) (dB) (dBW/MHz) Interference? Overload? Redstone Arsenal AL 343630 0863610 329.9 712.1 NO -164.9 -77.7 N/A -242.6 -176.5 NO NO White Sands NM 322246 1062813 292.3 1643.4 NO -172.1 -92.2 N/A -264.3 -213.3 NO NO Army Research MD 390000 0765800 11.4 930.2 NO -167.2 -63.9 -63.9 -231.1 -165.1 NO NO Fort Hunter CA 355756 1211404 296.6 2527.7 NO -175.9 -99.7 N/A -275.6 -224.5 NO NO Kelly Support PA 402357 0800925 0.6 1005.4 NO -167.9 -65.9 -65.9 -233.8 -167.7 NO NO Table Headings Radar Location : The site name of the radar system Lat (N) : Radar latitude Lon (w) : Radar Longitude Bearing (deg.) : Azimuth from earth station toward radar. Distance (mi) : Distance from earth station to radar Profile (Is path under 250 miles?) : If path is over 250 miles no OH-loss profile is generated FSL (dB) : Free Space Loss Estimated OH-Loss (dB) : Using a rounded-earth model an estimated OH-loss is calculated for long paths Profiled OH-Loss (dB) : Using the NSMA Tropo Loss actual OH-loss calculcations are performed for shorter paths Total Path Loss (dB) : Total of Free Space Loss plus Over-the-Horizon loss Interfering Power Level (dBW/MHz) : Level of RF interference at the earth station's LNA input In-Band Interference? : If the Radar is operating in-band is the max. permissible interference criteria being met? Out-of Band Overload? : If the Radar is operating in out-of-band spectrum is the LNA overload threshold being met? Interference Analysis Report for Miami, Florida

6.0 Conclusions Calculations were performed to assess the electromagnetic compatibility (EMC) between the radars listed below and adjacent-band FSS earth station receiver at Miami, Florida. Interference assessment for Earth Stations Operating at 3625 - 3700 MHz at Miami, Florida site identified 6 cases of In-band potential interference. The applicant is aware of this potential for interference and will work with the Government Users to mitigate the problem. Results Total Number of Paths Lat (N) Lon (W) Out-of-Band In-Band 2 sites Overload? Interference? Mayport FL 203324 812427 No Yes AUTEC1 252000 780500 No Yes AUTEC2 252000 774500 No Yes AUTEC3 232500 762000 No Yes AUTEC4 232500 771500 No Yes GoM1 293601 800130 No Yes Interference Analysis Report for Miami, Florida


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