Attachment Exhibit F

This document pretains to SES-MFS-20110128-00070 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2011012800070_865054

Exhibit F 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 Intelsat Licefise, LLC TRANSMIT—RECEKIVE EARTH STATION (15.2 METER) FCC CALL SIGN: KA262 Site Name: fi&gerstofivn, Marylahd Prepared By COMSEARCH January 7, 2011 19700 Janelia Fram Blyvd. * Ashburn, VA 20147 USA e 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 band‘. The geographical positions and operating parameters of these systems was derived from NTIA Document TR—99—361*. > 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 fortwo 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 PON _: Q7N PON 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 (usec.) 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) f Antenna Type Reflector Phased Array Phase Scan Array Antenna Mainbeam 32 42 36 Gain (dBi) Antenna Centerline (m) 46 20 46 ‘ 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). Interferenée Analysis Report for Hagerstown, Maryland

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 KA2G62 Licensee Code INTNOA Licensee Name Intelsat License LLC Site Information HAGERSTOWN, MARYLAND Venue Name Latitude (NAD 83) 39° 35‘ 57.0" N Longitude (NAD 83) 77° 45‘ 23.0" W _ Climate Zone A Rain Zone 2 GroundElevation (AMSL) 165.51 m / 543.0 ft Link Information Satellite Type Geostationary Mode TR — Transmit—Receive Modulation . Analog and Digital Satellite Arc 18° W to 143° West Longitude Azimuth Range 110.4° to 253.6° Corresponding Elevation Angles 14,4° / 10.3° Antenna Centerline (AGL) 8.84 m / 29.0 ft Antenna Information Receive Transmit Manufacturer J Vertex Vertex Model 15.2 KPC 15.2 KPC Gain / Diameter ©‘55.0 dBi / 15.2 m 58.4 dBi / 15.2 m 3—dB / 15—dB Beamwidth 0.34° / 0.70° 0.22° / 0.44° Max Available RF Power (dBW/4 kHz) SEE ATTACHMENT 1 (dBW/MHz) SEE ATTACHMENT 1 Maximum EIRP (dBW/A4 kHz) SEE ATTACHMENT 1 (dBW/MHz) SEE ATTACHMENT 1 Interference Objectives: Long Term ~156.0 dBW/MHz 20% —154.0 dBW/4 kHz 20% Short Term —146.0 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) SEE ATTACHMENT 1 SEE ATTACHMENT 1 Max Great Circle Coordination Distance 442.1 km / 274.7 mi 268.0 km / 166.5 mi Precipitation Scatter Contour Radius 538.7 km / 334.7 mi 181.3 km / 112.6 mi Interference Analysis Report for Hagerstown, Maryland

Vertex Communications: Model: 15.2 KPC 4 GHz Gain: 55.0 dBi 6 GHz Gain: 58.4 dBi Satellite Arc: 18.0 to 143.0 West Longitude 4 Receive Band: 3700.0 to 4200.0 MHz Emissions _ 800KFXD 60M0G1D 81K9G7W —72M0G7W . J Satellite Arc: 18.5 to 65.0 West Longitude — Transmit Band: 6172.0 —6178.0 MHz RF Power Density EJIRP Density Emission (dBW/4 kHz) (dBW/ 4 kHz) 800KFXD 0.6 59.0 Satellite Arc: 18.0 to 143.0 West Longitude Transmit Band: — 5925.0 —6425.0 MHz RF Power Density EIRP Density Emission (dBW/4 kHz) (dBW/ 4 kHz) 6OMOG1D ~14.2 44.2 81KIG7TW to ~14.2 to 44.2 to 72M0G7W —14,2 44.2 Interference Analysis Report for Hagerstown, Maryland

TABLE 3 — TABLE OF EARTH STATION COORDINATION VALUES Coordination Values HAGERSTOWN, MD Licensee Name Intelsat License LLC Latitude (NAD 83) 39° 35‘ 57.0" N Longitude (NAD 83) 77° 45‘ 23.0" W Ground Elevation (AMSL) 165.51 m / 543.0 ft Antenna Centerline (AGL) 8.84 m / 29.0 ft Antenna Model Vertex 15.2 KPC Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term —156.0 dBW/MHz 20% —154.0 dBW/MA kHz 20% Short Term —146.0 dBW/MHz 0.01% —131.0 dBW/A4 kHz 0.0025% Max Available RF Power 0.6 (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 0.26 106.13 —10.00 277.35 —10.00 176.72 5 0.25 104.91 —10.00 279.50 —10.00 178.57 10 0.21 100.07 —10.00 283.98 —10.00 182.36 15 0.27 95.23 —10.00 276.37 —10.00 175.86 20 0.22 90.38 ~10.00 283.25 —10.00 181.74 25 0.22 85.53 —10.00 283.24 —10.00 181.74 30 0.22 80.69 —10.00 283.24 —10.00 181.74 35 0.00 75.86 —10.00 285.28 —10.00 183.45 40 0.00 71.03 —10.00 285.28 —10.00 183.45 45 0.00 66.21 —10.00 285.28 ~10.00 183.45 50 0.00 61.41 ~10.00 285.28 —10.00 183.45 55 0.00 56.62 —10.00 285.28 ~10.00 183.45 60 0.00 51.87 —10.00 285.28 —10.00 183.45 _ 65 0.00 47.14 —9.84 286.33 —9.84 184.08 70 0.00 42.47 —8.70 293.68 —8.70 188.45 75 0.00 37.85 «7.45 302.00 —7.45 193.24 — 80 0.00 33.34 —6.07 311.49 —6.07 198.53 85 0.00 28.96 —4,54 322.93 —4,54 204.35 90 0.00 24.79 —2.86 335.17 —2.86 209.23 95 0.00 20.96 —1.04 348.72 —1.04 216.81 100 0.00 17.70 0.80 362.76 0.80 224.46 105 0.00 ©15.37 2.33 374.79 2.33 231.34 110 0.00 14.42 3.03 380.30 3.03 234.53 115 0.00 1512 2.51 376.20 2.51 232.15 120 — 0.00 17.27 1.07 364.86 1.07 225.65 125 0.00 20.41 —0.75 350.91 —0.75 217.82 130 0.00 23.83 —2.43 338.33 —2.43 210.94 135 0.00 2711 —3.83 328.09 ° —3.83 205.45 140 0.00 30.23 —5.01 319.61 —5.01 202.58 145 0.00 33.14 —6.01 311.94 —6.01 198.77 150 0.00 35.82 —6.85 > 306.10 —6.85 195.55 155 0.00 38.20 —7.55 301.33 —7.55 > 192.86 160 0.00 40.26 —8.12 297.51 —8.12 190.68 165 0.00 41.93 —8.56 294.59 —8.56 188.99 170 0.00 43.16 —8.88 292.52 —8.88 187.77 175 0.00 43.92 —9.07 291.29 —9.07 187.05 180 0.00 4418 —9.13 290.88 —9.13 186.80 Interference Analysis Report for Hagerstown, Maryland

TABLE 3 —. TABLE OF EARTH STATION COORDINATION VALUES (continued) Coordination Values HAGERSTOWN, MD Licensee Name Intelsat License LLC Latitude (NAD 83) 39° 35‘ 57.0" N Longitude (NAD 83) 77° 45‘ 23.0" W Ground Elevation (AMSL) 165.51 m / 543.0 ft Antenna Centerline (AGL) 8.84 m / 29.0 ft Antenna Model Vertex 15.2 KPC Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term —156.0 dBW/MHz 20% —154.0 dBW/4 kHz 20% Short Term —146.0 dBW/MHz 0.01% —131.0 dBW/4 kHz 0.0025% Max Available RF Power 0.6 (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 43.92 —9.07 291.29 —9.07 187.04 190 0.00 43.16 —8.88 292.52 —8.88 187.77 195 0.00 _ 41.93 —8.56 294.59 —8.56 188.99 200 0.00 40.26 —8.12 297.51 —8.12 190.68 205 0.00 38.20 —7.55 301.33 ~7.55 192.86 210 0.00 35.81 —6.85 306.10 —6.85 195.55 215 0.00 33.14 —6.01 311.94 —6.01 198.77 220 0.43 29.90 —4.89 290.47 —4.89 180.52 225 0.30 26.89 —3.74 315.37 —3.74 197.72 230 0.25 23.65 —2.35 332.41 —2.35 206.53 235 0.30 20.20 —0.63 338.09 —0.63 208.27 240 0.29 16.69 1.44 355.87 1.44 218.31 245 0.34 13.11 4.06 369.72 4.06 224.66 250 0.46 10.45 6.52 375.92 6.52 225.30 255 0.48 9.89 712 442.14 712 268.00 260 0.39 11.74 5.26 373.04 5.26 225.22 265 . 0.29 15.09 2.53 364.20 2.53 222.88 270 0.31 19.10 —0.03 341.86 —0.03 210.14 275 0.35 23.47 ‘ —2,26 320.26 —2.26 199.33 280 0.27 28.09 —~4,21 316.67 ~4.21 199.32 — 285 0.00 32.86 —5.92 313.22 —5.92 199.13 290 0.00 37.61 —7.38 302.48 —7.38 193.51 295 0.00 42.41 —8.69 293.77 —8.69 188.50 300 0.00 47.25 —9.86 286.17 —9.86 183.99. 305 0.24 52.08 —10.00 280.04 ~10.00 179.03 310 0.20 56.97 —10.00 285.26 ~10.00 183.43 315 . 0.23 61.86 —10.00 281.61 —10.00 180.37 320 0.00 66.78 —10.00 285.28 ~10.00 183.45 325 0.00 71.69 ~10.00 285.28 —10.00 183.45 330 0.20 76.60 ~10.00 284.87 +10.00 183.11 335 0.39 81.51 —~10.00 262.15 ~10.00 161.52 340 0.31 86.44 —10.00 27116 +10.00 < 171.29 345 0.28 91.36 ~10.00 275,.26 —10.00 174.90 350 0.23 96:28 —10.00 281.53 —10.00 180.29 355 0.35 101.21 —~10.00 267.30 ~10.00 167.81 Interference Analysis Report for Hagerstown, Maryland

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: P, =P, + G,—FSL — OHLOSS + G4, —LL4 — L4 Where: P,: Interference power level received at victim earth station, in dBW P;; Transmitter power of Radiolocation system, in dBW G,; 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 G,,; Horizon gain of the earth station toward radiolocation transmitter, in dBi LL,; Line losses of the radiolocation system, in dB (assume 2dB per NTIA report) LL,,; 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 recommendations*. 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 O 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, P,, allowable then becomes: Max P, > 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 model*. 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. * National Spectrum Managers Association has developed an industry accepted version which incorporates NBS Tech Note 101. Interference Analysis Report for Hagerstown, Maryland

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 Hagerstown, Maryland

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 |O871626| 225.8 834.6 NO —166.2 —82.3 N/A —248.6 —198.6 NO NO Pascagoula, MS |302200 |0882900| 229.5 882.5 NO —166.7 —83.3 N/A —250.0 —200.0 NO NO St.Inigoes, MD |381000 |O762300]| 146.2 86.9 YES —146.6 —53.5 —53.5 —200.1 ~150.1 YES 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| 66.3 135.0 YES —150.4 —67.6 —67.6 —218.0 —152.0 YES NO Wallops VA |(375600 10752800 131.6 131.9 YES —150.2 —63.5 —63.5 —213.7 —147.7 YES 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| 47.6 504.1 NO —161.9 —73.5 N/A —235.4 —169.4 NO NO Bremerton, WA |473324 1223811 299.7 2355.6 NO —175.3 —100.3 N/A —275.6 —209.6 NO NO Everett, WA [475858 1221354 300.5 2335.6 NO —175.2 —100.2 N/A —275.4 —209.3 NO NO Mayport, FL |302334 0812427 202.3 652.2 NO —164.1 —78.0 N/A —242.1 —176.1 NO NO Norfolk, VA (365200 |0O762100| 162.5 169.7 YES —152.4 —65.1 —65.1 —217.5 —151.5 YES NO Pascagoula, MS |302253 |O882933| 229.5 882.1 NO —166.7 —83.3 N/A —250.0 —184.0 NO NO Pearl Harbor, HI |212000 1580000 276.0 4981.4 NO —181.8 —113.3 N/A —295.1 —229.1 NO NO Portland, ME [434100 |0701800| 47.3 475.4 NO —161.4 —72.5 N/A —233.9 —167.9 NO NO San Diego CA |324105 |1170800| 270.3 2279.7 NO —175.0 —99.8 N/A —274.17 —208.7 NO NO Interference Analysis Report for Hagerstown, Maryland

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?) AFWTEF — (North 183000 |O670000| 153.9 1556.7 NO ~171.7 —93.1 N/A —264.8 —198.8 No NO Range co 200000 |O670000| 152.4 1460.8 NO —17141 —92.0 N/A —263.1 ° ~197.1 NO NO 221000 |O654800| 146.9 1358.6 NO —170.5 —90.8 N/A —261.3 —195.2 NO NO 221000 |O652000| 145.8 1372.8 NO —170.6 —91.0 N/A —261.5 —195.5 NO NO 185000 |O620000| 142.9 1680.8 NO —172.3 —94.5 N/A —266.8 —200.8 NO NO 185000 |0O620000| 142.9 1680.8 NO —172.3 ~94.5 N/A —266.8 —200.8 _ NO NO 182500 |0O643000| 148.5 1628.5 NO —172.1 —93.9 N/A —266.0 —200.0 NO NO 183000 |0O644500| 149.0 1616.1 NO —172.0 |. —93.8 N/A —265.8 ~199.8 NO NO 183000 |O663800| 153.1 1565.7 NO —171.7 —93.2 N/A —264.9 —198.9 NO NO AFWTEF . (South Range) 180500 |O675500| 156.4 1562.4 NO 171.7 —93.2 N/A —264.9 —198.9 NO NO 180500 |O652700| 150.9 1622.9 NO —172.0 —93.9 N/A —265.9 —199.9 NO NO 181500 |0O651000| 150.1 16201 NO —172.0 —93.8 N/A —265.8 —199.8 NO NO 181500 |O641000| 148.0—| 1648.5 NO —172.2 —94.1 N/A —266.3 —200.3 NO NO 170000 |0O641000| 149.3 1726.5 NO —172.6 —94.9 N/A —267.5 —201.5 NO NO 165800 |O642800| 149.9 1720.1 NO —172.5 —94.9 N/A —267.4 —201.4 NO NO 153300 |O660600| 154.6 1768.3 NO ~172.8 «95.3 N/A —268.1 —202.1 NO NO 153900 |O662300| 155.1 1755.1 NO —172.7 —95.2 N/A —267.9 —201.9 NO NO 163000 |O662300| 154.4 1700.2 NO —172.4 —94.7 N/A —267.1 —201.1 NO NO 163000 |O675500| 157.7 1665.7 NO —172.3 —94.3 N/A —266.6 —200.5 NO NO Interference Analysis Report for Hagerstown, Maryland

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 _: ' 252000 |0780500 183.1 957.8 NO —167.4 —84.7 N/A —252.1 —186.1 NO NO 252000 |0774500| 181.8 957.1 NO —167.4 —84.7 N/A —252.1 —186.1 NO NO 232500 |0O762000| 176.8 1090.0 NO —168.6 —86.9 N/A —255.5 —189.5 NO NO 232500 |0O771500| 179.9 1088.6 NO —168.6 —86.9 N/A —255.5 —189.5 NO NO FORACS, f Hawaii — — 212530 1581100 276.2 4988.3 NO —181.8 —113.4 N/A —295.1 —229.1 NO NO 212100 1581500 276.2 4995.2 NO —181.8 —113.4 N/A —295.2 —229.2 NO NO 211500 1580800 276.0 4992.5 NO —181.8 —113.4 N/A —295.2 —229.1 NO NO 211500 11580700 276.0 4991.6 NO —181.8 —113.4 N/A —295.2 —229.1 NO NO Gulf of Mexico OPAREA 293601 |O800130 194.1 681.3 NO —164.5 —78.8 N/A —243.3 —177.2 NO NO 292521 |0864800| 221.6 867.7 NO —166.6 —83.0 N/A —249.6 —183.5 NO NO 284101 |0864800| 219.7 909.2 NO —167.0 —83.8 N/A —250.8 —184.8 NO NO 285231 10874400 223.0 931.9 NO —167.2 —84.2 N/A —251.4 —185.4 NO NO Pacific Missile Range Facility (PMREF) 220000 |1594500| 277.4 5055.7 NO —181.9 —113.6 N/A —295.5 —229.5 NO NO 220800 |1620000| 278.5 5180.6 NO —182.1 —114.0 N/A —296.1 —230.1 NO NO 224500 |1614000| 279.0 5136.2 NO —182.0 | —113.9 N/A —295.9 —229.9 NO NO > 260000 |1581500| 280.9 4810.2 NO —181.5 —112.7 N/A —294.2 —228.2 NO NO . |Pearl Harbor South OPAREA . 190800 |1591500 274.4 5144.6 NO —182.0 —113.9 N/A —295.9 —229.9 NO NO 210000 |1580800| 275.8 5002.7 NO —181.8 —113.4 N/A —295.2 —229.2 NO NO 210000 |1573600| 275.5 4971.8 NO ~181.7 —113.3 N/A —295.1 —229.0 NO NO 191800 |1562000| 273.3 4968.2 NO —181.7 —113.3 N/A —295.0 —229.0 NO NO Interference Analysis Report for Hagerstown, Maryland

[184900|1574500| 273.4 | 5070.5 | NO _| —181.9 | —113.6 | NA | —2956 | —229.5 | NO | No | 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) — 385200 1255200 284.8 2614.4 NO —176.2 —102.1 N/A —278.3 —212.3 NO NO 390000 1240000 284.4 2511.6 NO —175.8 —101.4 N/A —277.3 —211.2 NO NO 311500 1163000 267.4 2285.9 NO —175.0 —99.8 N/A —274.8 —208.8 _ NO NO 300000 |1203000 267.8 2544.4 NO —175.9 —101.7 N/A —277.6° —211.6 NO NO Virginia Capes OPAREA e 5 — 384500 0750000 104.1 126.4 YES —149.9 —62.7 —62.7 —212.6 —146.5 YES NO 384500 0743000 101.3 152.6 YES \—151.5 —65.3 —65.3 —216.8 —150.8 YES NO 374500 0724000 110.6 269.4 NO —156.4 —62.7 N/A —219.1 1531 YES _ NO 350600 0724000 136.8 381.0 NO —159.4 —68.7 N/A —228.1 —162.1 NO NO 320000 0771200 179.5 497.6 NO —161.8 —73.3 N/A —235.1 —169.1 NO NO 342400 |0773000| 182.3 332.4 NO —158.3 —66.3 N/A —224.6 —158.5 NO NO 354000 |0752500| 156.8 265.2 NO —156.3 —62.4 N/A —218.7 —152.7 YES NO 370000 0755000 152.4 171.8 YES —152.5 —64.9 —64.9 217 .4 151.4 YES 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| 298.8 2353.9 NO —175.3 —100.3 N/A —275.6 —209.6 NO NO Yakima Firing WA |464018 (1202135| 297.9 2245.0 . NO ~174.8 —99.5 N/A —274.3 —208.3 NO NO Fort Carson CO [(383810 |1044750| 2771 1483.8 NO —171.2 —92.3 N/A —263.5 ~197.5 NO NO Fort Rliey KS |385813 |0965139| 275.2 1053.3 NO —168.3 —86.3 N/A —254.6 —188.6 NO NO Fort Shafter HIL (211800 |1574900| 275.9 4972.2 NO —181.7 —113.3 N/A —295.1 —229.0 NO NO Hunter AAF GA (320100|0810800| 204.8 542.0 NO —162.5 —74.8 N/A —237.3 171.3 NO NO Interference Analysis Report for Hagerstown, Maryland

Fort Gillem GA |333600 (0841900| 227.5 551.6 NO —162.7 ~75.1 N/A —237.8 —171.7 NO NO Fort Benning GA |322130 (0845815| 224.7 640.9 NO —164.0 —77.7 N/A —241.7 —175.7 NO NO Fort Stewart GA |(315145 |0813655| 207.0 563.1. NO —162.8 —75.5 N/A —238.3 —172.3 NO NO Fort Rucker AL |311947 |0854255| 223.7 723.6 NO —165.0 —79.8 N/A —244.8 —178.8 NO NO Yuma Proving AZ (330114 |1141855| 269.3 2115.9 NO —174.3 —98.5 N/A —272.8 —206.8 NO NO Fort Hood TX {310830 |0O974550| 250.3 1286.6 NO —170.0 —89.8 N/A —259.8 —193.8 NO NO Fort Knox KY |375350|0855655| 261.7 478.8 NO —161.4 —72.7 N/A —234.1 —168.1 NO NO Fort Bragg NC |350805 0790035 199.3 297.5 NO —157.3 —64.4 N/A —221.7 —155.6 YES NO Fort Campbell KY |363950 |0872820| 255.6 584.4 NO —163.2 —76.1 N/A —239.3 —173.2 NO NO Fort Polk LA 1310343 0931226 242.7 1063.3 NO —168.4 —86.5 N/A —254.9 —188.8 _ NO NO Fort Leonard MO |374430 |0920737 267.4 811.9 NO —166.0 —81.8 N/A —247.8 —181.8 NO NO Fort Irwin CA 1351536 |1164102| 274.8 2190.2 NO —174.6 —99.1 N/A —273.7 —207.7 NO NO Fort Sill OK 1344024 |0982352 261.3 1210.6 NO —169.5 —88.8 N/A —258.2 —192.2 NO NO Fort Bliss TX {(314850|1062533| 261.2 1720.8 NO —172.5 —94.9 N/A —267.4 —201.4 NO NO Fort KS 1392115 0945500 276.2 946.1 NO —167.3 —84.5 N/A —251.8 ——185.8 NO NO Leavenworth : ' Fort Drum NY (440115 (0754844| 12.4 340.0 NO —158.4 . —66.7 N/A —225.2 —159.1 NO NO Fort Gordon GA |332510|0820910| 215.7 483.8 NO ~161.5 —72.8 N/A =234.3) —168.3 NO NO Fort McCoy WI |440636 |0904127] 300.4 772.3 NO —165.6 —81.0 N/A —246.5 —180.5 NO NO Fort Dix NJ 1400025 |0743713| 681 151.5 YES —151.4 ~71.6 —71.6 —223.0 —157.0 NO NO Parks Reserve CA [374254 1214218 281.4 2411.9 NO —175.5 —100.7 N/A —276.2 —210.2 NO NO Aberdeen MD |392825 |O760655| 73.7 64.4 YES —144.0 —62.8 —62.8 —206.8 —140.8 YES NO Provin : Fort figachuca AZ |313500 1102000 263.8 1939.1 NO —173.6 —96.9 N/A —270.5 —204.5 NO NO Fort NJ (401900 |O740215| 65.2 188.1 YES —153.3 —76.2 —76.2 —229.5 —163.5 NO NO Monmouth Picatinny NJ 1405600 |0O743400| 49.6 185.9 YES —153.2 —167.3 —167.3 —320.5 —254.5 NO NO Arsenal : Interference Analysis Report for Hagerstown, Maryland >\

Table 8 Land—Based Radar Test and Training Sites (continued) 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?) Redstone AL 1343630 |0863610] 241.2 606.7 NO —163.5 —76.8 N/A ~240.2 —174.2 NO NO Arsenal . White Sands NM |322246 [1062813| 262.5 1706.5 NO —~172.5 ~94.7 N/A —267.2 —201.2 NO NO Army MD 390000 10765800 132.5 22.2 YES —134.7 —99.7 —99.7 ~234.4 —168.4 NO NO Research — | Fort Hunter . CA (355756 [1211404| 278.1 2423.1 NO —175.5 —100.8 N/A . —276.3 —210.3 NO NO Kelly Support PA (402357 |0800925| 298.9 173.9 YES —152.6 —206.1 ~206.1 —358.7 —292.7 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 Hagerstown, Maryland

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 Hagerstown, Maryland. Interference assessment for Earth Stations Operating at 3625 — 3700 MHz at the Hagerstown, MD site identified 11 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 11 sites Overload? Interference? St.Inigoes, MD 381000 0762300 No Yes Moorestown, NJ 395849 0745630 No Yes Wallops Island, VA 375600 0752800 No Yes Norfolk, VA 365200 0762100 No Yes VC 1 OPEREA 384500 0750000 No Yes VC 2 OPEREA 384500 0743000 No Yes VC 8 OPEREA 370000 0755000 No Yes Fort Dix NJ 400025 0743713 No Yes Aberdeen Proving MD 392825 0760655 No Yes Army Research MD 390000 0765800 No Yes Kelly Support PA 402357 0800925 No Yes Interference Analysis Report for Hagerstown, Maryland


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Document Modified: 2011-01-27 14:59:20
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