Attachment Interference

This document pretains to SES-MFS-20050831-01198 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2005083101198_483990

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 Loral Spacecom Corporation dba Loral Skynet TRANSMIT-RECEIVE EARTH STATION (13.0 METER) FCC CALL SIGN: E980250 Site Name: Kapolei, Hawaii Prepared By February 8, 2005 19700 Janelia Fram 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 was 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 Kapolei, Hawaii

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 SATELLITE EARTH STATION FREQUENCY COORDINATION DATA 02/04/2005 Company Loral Spacecom Corp. dba Loral Skynet Earth Station Name, State KAPOLEI, HI Call Sign E980250 Latitude (DMS) (NAD83) 21 20 12.6 N Longitude (DMS) (NAD83) 158 5 21.1 W Ground Elevation AMSL (Ft/m) 129.93 / 39.60 Antenna Centerline AGL (Ft/m) 49.54 / 15.10 Receive Antenna Type: Vertex Corporation 13 KPC 4.0 GHz Gain (dBi) / Diameter (m) 53.3 / 13.0 3 dB / 15 dB Half Beamwidth 0.09 / 0.17 Transmit Antenna Type: Vertex Corporation 13 KPC 6.0 GHz Gain (dBi) / Diameter (m) 56.3 / 13.0 3 dB / 15 dB Half Beamwidth 0.06 / 0.12 Operating Mode TRANSMIT AND RECEIVE Modulation DIGITAL Emission / Receive Band (MHz) 36M0G7W / 3700.0000 - 4200.0000 1M00N0N / 4199.0000 36M0F9W / 3700.0000 - 4200.0000 360KG7W / 3700.0000 - 4200.0000 350KG1D / 3722.1750 960KF2D / 4199.0000 Emission / Transmit Band (MHz) 36M0G7W / 5925.0000 - 6425.0000 960KF2D / 6425.0000 36M0F9W / 5925.0000 - 6425.0000 360KG7W / 5925.0000 - 6425.0000 350KG1D / 5947.1750 1M00N0N / 5925.0000 - 6425.0000 Max. Available RF Power (dBW)/4 kHz) -0.50 (dBW)/MHz) 23.50 Max. EIRP (dBW)/4 kHz) 55.80 (dBW)/MHz) 79.80 Max permissible Interference Power 4.0 GHz, 20% (dBW/1 MHz) -156.0 4.0 GHz, 0.0100% (dBW/1 MHz) -146.0 6.0 GHz, 20% (dBW/4 kHz) -151.0 6.0 GHz, 0.0025% (dBW/4 kHz) -128.0 Range of Satellite Arc (Geostationary) Degrees Longitude 214.0 W / 232.0 W Azimuth Range (Min/Max) 256.2 / 264.0 Corresponding Elevation Angles 23.5 / 6.3 Radio Climate A Rain Zone 4 Max Great Circle Coordination Distance (Mi/Km) 4.0 GHz 408.9 / 658.2 6.0 GHz 232.6 / 374.4 Precipitation Scatter Contour Radius (Mi/Km) 4.0 GHz 259.9 / 418.4 6.0 GHz 62.1 / 100.0 Note: Horizon is less than 0.2 degrees at all azimuths Interference Analysis Report for Kapolei, Hawaii

Table of Earth Station Coordination Values 02/04/2005 Earth Station Name KAPOLEI HI Owner Loral Spacecom Corp. dba Loral Skynet Latitude (DMS) (NAD83) 21 20 12.6 N Longitude (DMS) (NAD83)158 5 21.1 W Ground Elevation (Ft/m) 129.93 / 39.60 AMSL Antenna Centerline (Ft/m) 49.54 / 15.10 AGL Antenna Model Vertex 13 KPC Objectives: Receive -156.0 (dBW /1 MHz) Transmit -151.0 (dBW /4 kHz) TX Power -0.5 (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) 0 0.00 95.96 -10.00 285.2 -10.00 165.9 5 0.00 100.93 -10.00 285.2 -10.00 165.9 10 0.00 105.89 -10.00 285.2 -10.00 165.9 15 0.00 110.86 -10.00 285.2 -10.00 165.9 20 0.00 115.82 -10.00 285.2 -10.00 165.9 25 0.00 120.78 -10.00 285.2 -10.00 165.9 30 0.00 125.74 -10.00 285.2 -10.00 165.9 35 0.00 130.69 -10.00 285.2 -10.00 165.9 40 0.00 135.63 -10.00 285.2 -10.00 165.9 45 0.00 140.57 -10.00 285.2 -10.00 165.9 50 0.00 145.40 -10.00 285.2 -10.00 165.9 55 0.00 148.78 -10.00 285.2 -10.00 165.9 60 0.00 151.74 -10.00 285.2 -10.00 165.9 65 0.00 154.12 -10.00 285.2 -10.00 165.9 70 0.00 155.75 -10.00 285.2 -10.00 165.9 75 0.00 156.47 -10.00 285.2 -10.00 165.9 80 0.00 156.21 -10.00 285.2 -10.00 165.9 85 0.00 154.98 -10.00 285.2 -10.00 165.9 90 0.00 152.93 -10.00 285.2 -10.00 165.9 95 0.00 150.22 -10.00 285.2 -10.00 165.9 100 0.00 147.02 -10.00 285.2 -10.00 165.9 105 0.00 143.45 -10.00 285.2 -10.00 165.9 110 0.00 139.62 -10.00 285.2 -10.00 165.9 115 0.00 135.59 -10.00 285.2 -10.00 165.9 120 0.00 131.42 -10.00 285.2 -10.00 165.9 125 0.00 127.13 -10.00 285.2 -10.00 165.9 130 0.00 122.76 -10.00 285.2 -10.00 165.9 135 0.00 118.33 -10.00 285.2 -10.00 165.9 140 0.00 113.85 -10.00 285.2 -10.00 165.9 145 0.00 109.34 -10.00 285.2 -10.00 165.9 150 0.00 104.79 -10.00 285.2 -10.00 165.9 155 0.00 100.23 -10.00 285.2 -10.00 165.9 160 0.00 95.65 -10.00 285.2 -10.00 165.9 165 0.00 91.07 -10.00 285.2 -10.00 165.9 170 0.00 86.48 -10.00 285.2 -10.00 165.9 175 0.00 81.90 -10.00 285.2 -10.00 165.9 180 0.00 77.33 -10.00 285.2 -10.00 165.9 Interference Analysis Report for Kapolei, Hawaii

Table of Earth Station Coordination Values 02/04/2005 Earth Station Name KAPOLEI HI Owner Loral Spacecom Corp. dba Loral Skynet Latitude (DMS) (NAD83) 21 20 12.6 N Longitude (DMS) (NAD83)158 5 21.1 W Ground Elevation (Ft/m) 129.93 / 39.60 AMSL Antenna Centerline (Ft/m) 49.54 / 15.10 AGL Antenna Model Vertex 13 KPC Objectives: Receive -156.0 (dBW /1 MHz) Transmit -151.0 (dBW /4 kHz) TX Power -0.5 (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 0.00 72.78 -10.00 285.2 -10.00 165.9 190 0.00 68.25 -10.00 285.2 -10.00 165.9 195 0.00 63.75 -10.00 285.2 -10.00 165.9 200 0.00 59.29 -10.00 285.2 -10.00 165.9 205 0.00 54.89 -10.00 285.2 -10.00 165.9 210 0.00 50.57 -10.00 285.2 -10.00 165.9 215 0.00 46.34 -9.65 287.5 -9.65 168.9 220 0.00 42.15 -8.62 294.2 -8.62 172.9 225 0.00 37.85 -7.45 302.0 -7.45 177.4 230 0.00 33.46 -6.11 311.2 -6.11 182.6 235 0.00 29.00 -4.56 322.8 -4.56 188.6 240 0.00 24.48 -2.72 336.1 -2.72 195.6 245 0.00 19.92 -0.48 352.9 -0.48 204.2 250 0.00 15.34 2.36 374.9 2.36 213.6 255 0.00 10.98 5.98 403.8 5.98 229.2 260 0.00 7.47 10.16 440.4 10.16 248.5 265 0.00 6.39 11.86 658.1 11.86 374.3 270 0.00 8.70 8.52 425.7 8.52 241.1 275 0.00 12.66 4.44 391.0 4.44 222.4 280 0.00 17.16 1.13 365.3 1.13 208.8 285 0.00 21.88 -1.50 345.2 -1.50 200.3 290 0.00 26.70 -3.66 329.2 -3.66 192.0 295 0.00 31.57 -5.48 316.2 -5.48 185.0 300 0.00 36.47 -7.05 304.7 -7.05 179.0 305 0.00 41.39 -8.42 295.5 -8.42 173.6 310 0.00 46.33 -9.65 287.5 -9.65 168.9 315 0.00 51.27 -10.00 285.2 -10.00 165.9 320 0.00 56.23 -10.00 285.2 -10.00 165.9 325 0.00 61.19 -10.00 285.2 -10.00 165.9 330 0.00 66.15 -10.00 285.2 -10.00 165.9 335 0.00 71.11 -10.00 285.2 -10.00 165.9 340 0.00 76.08 -10.00 285.2 -10.00 165.9 345 0.00 81.05 -10.00 285.2 -10.00 165.9 350 0.00 86.02 -10.00 285.2 -10.00 165.9 355 0.00 90.99 -10.00 285.2 -10.00 165.9 Interference Analysis Report for Kapolei, Hawaii

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 is the 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 Kapolei, Hawaii

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 Kapolei, Hawaii

Table 4 Shipboard Radar A Land-Based Test and Training Sites Radar Lat (N) Lon (w) Bearing Distance Profile (Is FSL (dB) Estimated Profiled Total Path Interfering In-Band Out-of Location (deg.) (mi) path OH-Loss OH-Loss Loss (dB) Power Level Interference? Band under 250 (dB) (dB) (dBW/MHz) Overload? miles?) Pensacola, FL 302128 0871626 66.6 4454.7 NO -180.8 -108.8 N/A -289.6 -239.6 NO NO Pascagoula, MS 302200 0882900 66.7 4380.0 NO -180.6 -108.5 N/A -289.2 -239.2 NO NO St.Inigoes, MD 381000 0762300 56.4 5045.8 NO -181.9 -111.0 N/A -292.9 -242.9 NO NO Table 5 Shipboard Radar B Land-Based Test and Training Sites Radar Lat (N) Lon (w) Bearing Distance Profile (Is FSL (dB) Estimated Profiled Total Path Interfering In-Band Out-of Location (deg.) (mi) path OH-Loss OH-Loss Loss (dB) Power Level Interference? Band under 250 (dB) (dB) (dBW/MHz) Overload? miles?) Moorestown, NJ 395849 0745630 54.3 5115.7 NO -182.0 -111.2 N/A -293.2 -227.2 NO NO Wallops VA 375600 0752800 56.6 5101.4 NO -182.0 -111.2 N/A -293.1 -227.1 NO NO Island, Table 6 Shipboard Radars A and B Home Ports Radar Lat (N) Lon (w) Bearing Distance Profile (Is FSL (dB) Estimated Profiled Total Path Interfering In-Band Out-of Location (deg.) (mi) path OH-Loss OH-Loss Loss (dB) Power Level Interference? Band under 250 (dB) (dB) (dBW/MHz) Overload? miles?) Bath, ME 435425 0694848 49.4 5377.7 NO -182.4 -112.1 N/A -294.5 -228.5 NO NO Bremerton, WA 473324 1223811 38.2 2713.8 NO -176.5 -100.2 N/A -276.7 -210.7 NO NO Everett, WA 475858 1221354 37.8 2746.8 NO -176.6 -100.4 N/A -277.0 -211.0 NO NO Mayport, FL 302334 0812427 65.8 4816.4 NO -181.5 -110.2 N/A -291.6 -225.6 NO NO Norfolk, VA 365200 0762100 57.9 5058.5 NO -181.9 -111.0 N/A -292.9 -226.9 NO NO Pascagoula, MS 302253 0882933 66.6 4379.3 NO -180.6 -108.5 N/A -289.2 -223.1 NO NO Pearl Harbor, HI 212000 1580000 92.4 5.8 YES -123.0 0.0 0 -123.0 -57.0 YES YES Portland, ME 434100 0701800 49.7 5352.2 NO -182.4 -112.0 N/A -294.4 -228.4 NO NO San Diego CA 324105 1170800 63.5 2643.8 NO -176.3 -99.7 -73.3 -276.0 -210.0 NO NO Interference Analysis Report for Kapolei, Hawaii

Table 7 Naval At-Sea Operational Areas Operational Lat (N) Lon (w) Bearing Distance Profile (Is FSL (dB) Estimated Profiled Total Path Interfering In-Band Out-of Area (deg.) (mi) path OH-Loss OH-Loss Loss (dB) Power Level Interference? Band under 250 (dB) (dB) (dBW/MHz) Overload? miles?) AFWTF (North Range) AFWTF (NR)1 183000 0670000 76.4 5929.4 NO -183.3 -113.8 N/A -297.1 -231.0 NO NO AFWTF (NR)2 200000 0670000 74.8 5898.4 NO -183.2 -113.7 N/A -296.9 -230.9 NO NO AFWTF (NR)3 221000 0654800 72.3 5932.3 NO -183.3 -113.8 N/A -297.1 -231.0 NO NO AFWTF (NR)4 221000 0652000 72.3 5962.3 NO -183.3 -113.9 N/A -297.2 -231.2 NO NO AFWTF (NR)5 185000 0620000 75.1 6247.3 NO -183.7 -114.7 N/A -298.4 -232.4 NO NO AFWTF (NR)6 185000 0620000 75.1 6247.3 NO -183.7 -114.7 N/A -298.4 -232.4 NO NO AFWTF (NR)7 182500 0643000 76.0 6093.7 NO -183.5 -114.3 N/A -297.8 -231.7 NO NO AFWTF (NR)8 183000 0644500 75.9 6075.7 NO -183.5 -114.2 N/A -297.7 -231.7 NO NO AFWTF (NR)9 183000 0663800 76.3 5953.2 NO -183.3 -113.8 N/A -297.2 -231.1 NO NO AFWTF (South Range) AFWTF (SR)1 180500 0675500 77.0 5878.4 NO -183.2 -113.6 N/A -296.8 -230.8 NO NO AFWTF (SR)2 180500 0652700 76.5 6039.0 NO -183.4 -114.1 N/A -297.5 -231.5 NO NO AFWTF (SR)3 181500 0651000 76.3 6053.9 NO -183.5 -114.1 N/A -297.6 -231.6 NO NO AFWTF (SR)4 181500 0641000 76.1 6119.0 NO -183.6 -114.3 N/A -297.9 -231.9 NO NO AFWTF (SR)5 170000 0641000 77.4 6146.0 NO -183.6 -114.4 N/A -298.0 -232.0 NO NO AFWTF (SR)6 165800 0642800 77.5 6127.2 NO -183.6 -114.3 N/A -297.9 -231.9 NO NO AFWTF (SR)7 153300 0660600 79.2 6051.3 NO -183.5 -114.1 N/A -297.6 -231.6 NO NO AFWTF (SR)8 153900 0662300 79.2 6030.6 NO -183.4 -114.1 N/A -297.5 -231.5 NO NO AFWTF (SR)9 163000 0662300 78.3 6012.1 NO -183.4 -114.0 N/A -297.4 -231.4 NO NO AFWTF (SR)10 163000 0675500 78.6 5911.9 NO -183.3 -113.7 N/A -297.0 -231.0 NO NO Interference Analysis Report for Kapolei, Hawaii

Table 7 Naval At-Sea Operational Areas (continued) Operational Lat (N) Lon (w) Bearing Distance Profile (Is FSL (dB) Estimated Profiled Total Path Interfering In-Band Out-of Area (deg.) (mi) path OH-Loss OH-Loss Loss (dB) Power Level Interference? Band under 250 (dB) (dB) (dBW/MHz) Overload? miles?) AUTEC AUTEC1 252000 0780500 71.1 5091.6 NO -182.0 -111.1 N/A -293.1 -227.1 NO NO AUTEC2 252000 0774500 71.0 5112.7 NO -182.0 -111.2 N/A -293.2 -227.2 NO NO AUTEC3 232500 0762000 72.9 5233.9 NO -182.2 -111.6 N/A -293.8 -227.8 NO NO AUTEC4 232500 0771500 73.0 5175.2 NO -182.1 -111.4 N/A -293.5 -227.5 NO NO FORACS, Hawaii FORACS, Hawaii1 212530 1581100 315.0 8.6 YES -126.5 -91.3 -91.3 -217.8 -151.8 YES NO FORACS, Hawaii2 212100 1581500 275.0 10.4 YES -128.2 0.0 0 -128.2 -51.0 YES YES FORACS, Hawaii3 211500 1580800 205.5 6.6 YES -124.2 0.0 0 -124.2 -58.2 YES YES FORACS, Hawaii4 211500 1580700 196.5 6.2 YES -123.7 0.0 0 -123.7 -57.7 YES YES Gulf of Mexico OPAREA GoM1 293601 0800130 66.6 4911.2 NO -181.6 -110.5 N/A -292.1 -226.1 NO NO GoM2 292521 0864800 67.6 4492.6 NO -180.9 -109.0 N/A -289.8 -223.8 NO NO GoM3 284101 0864800 68.5 4500.0 NO -180.9 -109.0 N/A -289.9 -223.8 NO NO GoM4 285231 0874400 68.4 4439.9 NO -180.8 -108.8 N/A -289.5 -223.5 NO NO Pacific Missile Range Facility (PMRF) PMRF1 220000 1594500 293.4 116.1 YES -149.1 -56.7 -56.7 -205.8 -133.5 YES NO PMRF2 220800 1620000 283.0 257.3 NO -156.0 -59.3 N/A -215.3 -138.2 YES NO PMRF3 224500 1614000 293.6 249.2 YES -155.8 -63.9 -63.9 -219.7 -147.3 YES NO PMRF4 260000 1581500 358.2 321.1 NO -158.0 -63.1 N/A -221.1 -145.0 YES NO Pearl Harbor South OPAREA PHS1 190800 1591500 206.6 169.3 YES -152.4 -48.4 -48.4 -200.8 -134.8 YES NO PHS2 210000 1580800 187.0 23.3 YES -135.2 0.0 0 -135.2 -69.2 YES YES PHS3 210000 1573600 126.2 39.2 YES -139.7 -11.5 -11.5 -151.2 -85.2 YES NO PHS4 191800 1562000 140.6 180.6 YES -153.0 -50.1 -50.1 -203.1 -137.0 YES NO PHS5 184900 1574500 172.7 174.7 YES -152.7 -49.2 -49.2 -201.9 -135.8 YES NO Interference Analysis Report for Kapolei, Hawaii

Table 7 Naval At-Sea Operational Areas (continued) Operational Lat (N) Lon (w) Bearing Distance Profile (Is FSL (dB) Estimated Profiled Total Path Interfering In-Band Out-of Area (deg.) (mi) path OH-Loss OH-Loss Loss (dB) Power Level Interference? Band under 250 (dB) (dB) (dBW/MHz) Overload? miles?) Southern California (SOCAL) SOCAL1 385200 1255200 49.9 2276.5 NO -175.0 -97.1 N/A -272.1 -206.1 NO NO SOCAL2 390000 1240000 50.6 2375.6 NO -175.3 -97.9 N/A -273.2 -207.2 NO NO SOCAL3 311500 1163000 66.0 2669.6 NO -176.3 -99.9 -72.8 -276.3 -210.2 NO NO SOCAL4 300000 1203000 67.6 2419.6 NO -175.5 -98.2 N/A -273.7 -207.7 NO NO Virginia Capes OPAREA VC1 384500 0750000 55.7 5121.8 NO -182.0 -111.2 N/A -293.2 -227.2 NO NO VC2 384500 0743000 55.6 5151.0 NO -182.1 -111.3 N/A -293.4 -227.4 NO NO VC3 374500 0724000 56.5 5267.5 NO -182.3 -111.7 N/A -294.0 -228.0 NO NO VC4 350600 0724000 59.5 5296.0 NO -182.3 -111.8 N/A -294.1 -228.1 NO NO VC5 320000 0771200 63.5 5057.0 NO -181.9 -111.0 N/A -292.9 -226.9 NO NO VC6 342400 0773000 60.8 5013.0 NO -181.8 -110.9 N/A -292.7 -226.7 NO NO VC7 354000 0752500 59.2 5125.3 NO -182.0 -111.2 N/A -293.3 -227.2 NO NO VC8 370000 0755000 57.7 5087.9 NO -181.9 -111.1 N/A -293.1 -227.0 NO NO Table 8 Land-Based Radar Test and Training Sites Radar Lat (N) Lon (w) Bearing Distance Profile (Is FSL (dB) Estimated Profiled Total Path Interfering In-Band Out-of Location (deg.) (mi) path OH-Loss OH-Loss Loss (dB) Power Level Interference? Band under 250 (dB) (dB) (dBW/MHz) Overload? miles?) Fort Lewis WA 470525 1223510 38.9 2698.9 NO -176.4 -100.1 N/A -276.5 -210.5 NO NO Yakima Firing WA 464018 1202135 40.6 2782.0 NO -176.7 -100.6 N/A -277.3 -211.3 NO NO Fort Carson CO 383810 1044750 56.2 3410.5 NO -178.5 -104.2 N/A -282.6 -216.6 NO NO Fort Rliey KS 385813 0965139 56.3 3861.3 NO -179.6 -106.3 N/A -285.9 -219.9 NO NO Fort Shafter HI 211800 1574900 98.2 17.8 YES -132.8 -7.0 -7 -139.8 -73.8 YES YES Hunter AAF GA 320100 0810800 63.9 4816.2 NO -181.5 -110.2 N/A -291.6 -225.6 NO NO Fort Gillem GA 333600 0841900 62.4 4608.9 NO -181.1 -109.4 N/A -290.5 -224.5 NO NO Fort Benning GA 322130 0845815 64.0 4579.0 NO -181.0 -109.3 N/A -290.3 -224.3 NO NO Fort Stewart GA 315145 0813655 64.2 4788.3 NO -181.4 -110.1 N/A -291.5 -225.5 NO NO Interference Analysis Report for Kapolei, Hawaii

Table 8 Land-Based Radar Test and Training Sites (Continued) Fort Rucker AL 311947 0854255 65.2 4542.1 NO -181.0 -109.1 N/A -290.1 -224.1 NO NO Yuma Proving AZ 330114 1141855 63.4 2813.0 NO -176.8 -100.8 -72.8 -277.6 -211.6 NO NO Fort Hood TX 310830 0974550 66.4 3805.6 NO -179.4 -106.1 N/A -285.5 -219.5 NO NO Fort Knox KY 375350 0855655 57.5 4489.0 NO -180.9 -108.9 N/A -289.8 -223.8 NO NO Fort Bragg NC 350805 0790035 60.1 4915.5 NO -181.7 -110.5 N/A -292.2 -226.1 NO NO Fort Campbell KY 363950 0872820 59.0 4404.0 NO -180.7 -108.6 N/A -289.3 -223.3 NO NO Fort Polk LA 310343 0931226 66.2 4084.8 NO -180.0 -107.3 N/A -287.3 -221.3 NO NO Fort Leonard MO 374430 0920737 57.9 4130.4 NO -180.1 -107.5 N/A -287.6 -221.6 NO NO Fort Irwin CA 351536 1164102 59.4 2699.7 NO -176.4 -100.1 -68.1 -276.6 -210.5 NO NO Fort Sill OK 344024 0982352 61.9 3762.0 NO -179.3 -105.9 N/A -285.2 -219.2 NO NO Fort Bliss TX 314850 1062533 65.7 3278.5 NO -178.1 -103.5 N/A -281.6 -230.6 NO NO Fort KS 392115 0945500 55.8 3973.1 NO -179.8 -106.8 N/A -286.6 -220.6 NO NO Leavenworth Fort Drum NY 440115 0754844 49.7 5043.4 NO -181.9 -111.0 N/A -292.8 -226.8 NO NO Fort Gordon GA 332510 0820910 62.4 4741.2 NO -181.3 -109.9 N/A -291.2 -225.2 NO NO Fort McCoy WI 440636 0904127 50.0 4228.0 NO -180.3 -107.9 N/A -288.2 -222.2 NO NO Fort Dix NJ 400025 0743713 54.2 5134.0 NO -182.0 -111.3 N/A -293.3 -227.3 NO NO Parks Reserve CA 374254 1214218 53.8 2464.9 NO -175.7 -98.5 N/A -274.2 -208.2 NO NO Aberdeen MD 392825 0760655 54.9 5051.6 NO -181.9 -111.0 N/A -292.9 -226.9 NO NO Proving Fort Huachuca AZ 313500 1102000 66.0 3042.2 NO -177.5 -102.2 N/A -279.7 -228.6 NO NO Fort NJ 401900 0740215 53.8 5165.2 NO -182.1 -111.4 N/A -293.5 -227.4 NO NO Monmouth Picatinny NJ 405600 0743400 53.2 5130.4 NO -182.0 -111.3 N/A -293.3 -227.3 NO NO Arsenal Interference Analysis Report for Kapolei, Hawaii

Table 8 Land-Based Radar Test and Training Sites (Continued) Lat (N) Lon (w) Bearing Distance Profile (Is FSL (dB) Estimated Profiled Total Path Interfering In-Band Out-of Radar (deg.) (mi) path OH-Loss OH-Loss Loss (dB) Power Level Interference? Band Location under 250 (dB) (dB) (dBW/MHz) Overload? miles?) Redstone AL 343630 0863610 61.4 4464.9 NO -180.8 -108.8 N/A -289.7 -223.6 NO NO Arsenal White Sands NM 322246 1062813 64.9 3277.0 NO -178.1 -103.5 N/A -281.6 -230.6 NO NO Army MD 390000 0765800 55.5 5005.6 NO -181.8 -110.8 N/A -292.6 -226.6 NO NO Research Fort Hunter CA 355756 1211404 56.9 2455.1 NO -175.6 -98.5 N/A -274.1 -223.1 NO NO Kelly Support PA 402357 0800925 54.2 4813.8 NO -181.5 -110.2 N/A -291.6 -225.6 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 Kapolei, Hawaii

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 Kapolei, Hawaii. Interference assessment for Earth Stations Operating at 3625 - 3700 MHz at the Kapolei, Hawaii site identified 15 cases of In-band interference, and 6 of those cases also have Out-of Band Overload. 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 15 sites Overload? Interference? Pearl Harbor, HI 212000 1580000 Yes Yes FORACS Hawaii1, HI 212530 1581100 No Yes FORACS Hawaii2, HI 212100 1581500 Yes Yes FORACS Hawaii3, HI 211500 1580800 Yes Yes FORACS Hawaii4, HI 211500 1580700 Yes Yes PMRF1 HI 220000 1594500 No Yes PMRF2 HI 220800 1620000 No Yes PMRF3 HI 224500 1614000 No Yes PMRF4, HI 260000 1581500 No Yes PHS1 HI 190800 1591500 No Yes PHS2 HI 210000 1580800 Yes Yes PHS3 HI 210000 1573600 No Yes PHS4 HI 191800 1562000 No Yes PHS5 HI 184900 1574500 No Yes Ft. Shafter HI 211800 1574900 Yes Yes Interference Analysis Report for Kapolei, Hawaii


Document Created: 2006-02-22 11:58:11
Document Modified: 2006-02-22 11:58:11
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