Attachment EMC - Analysis

This document pretains to SES-MOD-20040315-00397 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2004031500397_369148

Intelsat inspiring connections April 5, 2004 Ms. Marlene Dortch Secretary I 7 2004 Federal Communications Commission 445 1 2 ' ~Street, S.W. Washington, D.C. 20554 1 FCC - MAILROOM 1 RE: lntelsat LLC Application of modification of radio station license: E020315 Nuevo, CA FCC File No. SES-MOD-20040315-00397 Dear Ms. Dortch Attached please find an Electromagnetic Compatibility (EMC) Analysis performed for the above-referenced earth station. Would you please associate this EMC analysis with lntelsat LLC's pending above application for modification of radio station license, filed on March 14, 2004. lntelsat LLC also has reviewed NTlA TR-99-361 Report, Technical Characterktics of Radiolocation Systems Operating in the 3.1-3.7GHz Band and Procedures for assessing EMC with Fixed Earth Station Receivers. To the extent there is a potential for unacceptable interference that may be caused to its receiving earth station, lntelsat agrees to accept such interference. Furthermore, it is aware that the use of an RF filter ahead of the low noise amplifier would limit potential out-of-band interference to the receiving earth station. Respqfu Ily submitted, 1 lntelsat LLC Robert A. Mansbach Its Attorney lntelsat Global Service Corporation 3400 International Drive NW, Washington DC 20008-3006 USA www.intelsat.com T + I 202-944-6800 F +1 202-944-7529

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 Site Name: Nuevo, CA (Call Sign: E020315) Prepared By CO MS€AR CH March 31.2004 I9700 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 3.7GHz band'. 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 Characteristic Shipboard System A Shipboard System B Ground Based System Modulation PON Q7N PON Tuning Range (GHz) 3 53.7 3.1-3.5 3.1-3.4 Peak transmit Power 1 4 0.12 - (MW) Pulse Width (psec.) 1 .o 3.5-51.2 10.75 Pulse Repetition Rate 1.125 0.152-6.0 2793.3-5050.51 (H-4 Duty Cycle (%) 0.001 0.8-2.0 0.041 Transmit 3-dB 4,16.6 4 1,lO Bandwidth (MHz) Antenna Type Reflector Phased Array Phase Scan Array Antenna Mainbeam 32 42 36 Gain (dBi) Antenna Centerline (m) 46 20 46 ~~ 2 ' This report is being provided as required under Footnote US 245. National Telecommunications and Information Administration, U.S. DEPARTMENT OF COMMERCE, NTIA Report TR 99-361, TECHNICAL CHARACTERISTICS OF RADIOLOCATIONSYSTEMS 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 Nuevo, CA E0203 15

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 Call Sign E0203 I 5 Licensee Code INTELS Licensee Name INTELSAT, LLC Site Information NUEVO, CALIFORNIA Venue Name Latitude (NAD 83) 33" 47' 45.0" N Longitude (NAD 83) 117" 5' 15.0" W Climate Zone A Rain Zone 4 Ground Elevation (AMSL) 553.0mi 1814.3 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Analog and Digital Satellite Arc 50" W to 190" West Longitude Azimuth Range 103.2" to 260.3" Corresponding Elevation Angles 10.3" / 5.5" Antenna Centerline (AGL) 11.Orn/36.1 ft Antenna Information Receive Transmit Manufacturer Vertex Communications Vertex Communications Model 16.4 Meter 16.4 Meter Gain / Diameter 54.8 dBi / 16.4 m 59.0 dBi J 16.4 m 3-dB I 15-dB Beamwidth 0.32" / 0.68' 0.20" / 0.40° 36MOF3F 43K8G7W - 72MOG7W Max Available RF Power (dBW/4 kHz) 0.0 -2.7 -15.5 (dBW/MHz) 24.0 7.7 8.5 Maximum EIRP (dBW/4 kHz) 59.0 56.3 43.5 (dBWMHz) 83.0 66.7 67.5 Interference Objectives: Long Term -156.0 dBW/MHZ 20% -154.0 dBW/4 ~ H Z 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBWI4 ~ H Z 0.0025% Frequency Information Receive 4.0 GHz Transmit 6.1 GHz Emission I Frequency Range (MHz) 36MOF3F / 3625.0 - 4200.0 36MOF3F / 5850.0 - 6425.0 43K8G7W - 72MOG7W 13625.0 - 4200.0 43K8G7W - 72MOG7W 15850.0 - 6425.0 Max Great Circle Coordination Distance 732.1 km / 454.8 mi 473.4 km I294.1 mi Precipitation Scatter Contour Radius 427.7 km / 265.7 mi 120.8 km / 75.1 mi Interference Analysis Report for Nuevo, CA E0203 15

Coordination Values NUEVO, CA Licensee Name INTELSAT, LLC Latitude (NAD 83) 33" 47' 45.0" N Longitude (NAD 83) 117" 5' 15.0" W Ground Elevation (AMSL) 553.0 m / 1814.3 fi Antenna Centerline (AGL) ll.Om/36.1 ft Antenna Model Vertex Communications 16.4 Meter Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% - 154.0 dBWl4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBWl4 ~ H Z 0.0025% Max Available RF Power 0.0 (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 2.00 99.69 - 10.00 194.64 -10.00 100.59 5 2.31 98.15 -10.00 187.52 -10.00 100.00 10 2.98 93.21 -10.00 172.00 -10.00 100.00 15 3.10 88.25 -10.00 169.13 - 10.00 100.00 20 2.97 83.29 - 10.00 172.18 -10.00 100.00 25 3.23 78.32 - 10.00 164.36 -10.00 100.00 30 3.5 1 73.35 -10.00 158.05 -10.00 100.00 35 3.58 68.39 -10.00 156.60 -10.00 100.00 40 3.44 63.44 -10.00 159.68 -10.00 100.00 45 3.49 58.48 -10.00 158.61 -10.00 100.00 50 3.15 53.57 -10.00 166.17 -10.00 100.00 55 2.83 48.67 -10.00 175.45 -10.00 100.00 60 2.94 43.73 -9.02 177.79 -9.02 100.00 65 3.68 38.72 -7.70 166.10 -7.70 100.00 70 3.53 33.84 -6.24 178.79 -6.24 100.00 75 3.43 28.99 -4.56 189.70 -4.56 100.00 80 3.92 24.05 -2.53 189.83 -2.53 100.00 85 3.80 19.33 -0.15 204.63 -0.15 101.60 90 3.69 14.77 2.76 220.82 2.76 114.68 95 2.79 11.14 5.83 265.05 5.83 141.49 100 3.34 7.69 9.85 28 1.67 9.85 147.85 105 3.73 6.82 11.15 281.22 11.15 146.02 1I O 3.96 9.28 7.81 249.1 1 7.81 129.19 115 4.00 13.17 4.01 221.74 4.01 113.93 120 4.16 16.99 1.25 205.56 1.25 101.39 125 4.33 20.70 -0.90 191.41 -0.90 100.00 130 4.26 24.47 -2.72 182.89 -2.72 100.00 135 4.38 27.97 -4.17 173.02 -4.17 100.00 140 3.98 3 1.65 -5.5 1 172.78 -5.5 1 100.00 145 4.43 34.52 -6.45 158.07 -6.45 100.00 150 3.86 37.88 -7.46 163.29 -7.46 100.00 155 3.03 41.16 -8.36 179.13 -8.36 100.00 160 2.47 43.91 -9.06 188.25 -9.06 100.00 165 3.13 45.19 -9.38 171.73 -9.38 100.00 170 3.75 45.92 -9.55 155.12 -9.55 100.00 175 4.82 45.64 -9.48 138.09 -9.48 100.00 180 5.16 45.55 -9.46 134.14 -9.46 100.00 185 5.59 44.88 -9.30 131.90 -9.30 100.00 Interference Analysis Report for Nuevo, CA E0203 15

Coordination Values NUEVO, CA Licensee Name INTELSAT, LLC Latitude (NAD 83) 33' 47' 45.0" N Longitude (NAD 83) 117" 5 ' 15.0" W Ground Elevation (AMSL) 553.0 m / 1814.3 ft Antenna Centerline (AGL) 11.Om/36.1 fi Antenna Model Vertex Communications 16.4 Meter Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% - 154.0 dBWl4 ~ H Z 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBWl4 ~ H Z 0.0025% Max Available RF Power 0.0 (dBWl4 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) 190 5.86 43.89 -9.06 130.27 -9.06 100.00 195 6.25 42.33 -8.66 127.77 -8.66 100.00 200 6.86 40.1 1 -8.08 123.41 -8.08 100.00 205 6.63 38.23 -7.56 128.07 -7.56 100.00 210 5.71 36.45 -7.04 138.65 -7.04 100.00 215 5.43 33.79 -6.22 145.28 -6.22 100.00 220 6.06 30.19 -5.00 144.15 -5.00 100.00 225 5.63 27.13 -3.84 154.79 -3.84 100.00 230 5.75 23.50 -2.28 161.68 -2.28 100.00 235 5.50 19.97 -0.51 176.65 -0.5 1 100.00 240 5.42 16.21 1.75 190.62 1.75 100.00 245 5.44 12.30 4.75 204.86 4.75 100.00 250 5.04 8.58 8.66 234.87 8.66 1 18.00 255 4.42 4.92 14.70 294.36 14.70 150.43 260 4.18 1.33 28.91 732.07 28.91 473.39 265 3.85 4.98 14.58 307.04 14.58 159.92 270 4.02 9.8 1 7.21 243.09 7.21 125.79 275 4.50 14.74 2.79 206.39 2.79 102.60 280 3.61 19.79 -0.4 1 204.71 -0.41 104.02 285 3.00 24.82 -2.87 204.73 -2.87 105.83 290 1.04 30.00 -4.93 247.21 -4.93 140.48 295 1.21 34.93 -6.58 23 1.74 -6.58 131.46 300 0.00 40.02 -8.06 297.94 -8.06 188.62 305 0.00 44.97 -9.32 289.62 -9.32 183.74 310 0.00 49.93 -10.00 285.28 - 10.00 181.13 315 0.00 54.89 - 10.00 285.28 -10.00 181.13 320 0.00 59.86 -10.00 285.28 -10.00 181.13 325 0.00 64.83 -10.00 285.28 - 10.00 181.13 330 0.00 69.80 -10.00 285.28 -10.00 181.13 335 0.00 74.78 - 10.00 285.28 -10.00 181.13 340 0.00 79.75 -10.00 285.28 -10.00 181.13 345 0.00 84.73 -10.00 285.28 -10.00 181.13 350 0.42 89.71 -10.00 258.76 -10.00 156.20 355 I .08 94.69 -10.00 217.92 -10.00 123.79 Interference Analysis Report for Nuevo, CA E0203 15

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: 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 Ges: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 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: 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, P,, allowable then becomes: Max P, 2 T - IPBO For a 65 dB gain LNA this value is -95 dBW. In the absence of manufacturer LNALNB specifications the following typical values have been used: T -95 dBW C = -20 dBW G=65dB 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. FCC Rules 47CFR25.25 1 by reference ITU Radio Regulations Appendix S7. National Spectrum Managers Association has developed an industry-accepted version that incorporates NBS Tech Note 101. Interference Analysis Report for Nuevo, CA E0203 15

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 Nuevo, CA E0203 15

Profile (Is path Total Interfering under Estimated Profiled Path Power Out-of Bearing Distance 250 FSL OH-LOSS OH-LOSS LOSS Level Radar Location Lat (N) Lon (w) (deg.) (mi) miles?) (dB) (dB) (dB) (dB) Pensacola, FL 302128 0871626 89.8 1765.1 NO -172.8 -93.7 NIA -266.L -203.7 Pascagoula, MS 302200 0882900 90.4 1694.6 NO -172.4 -93.0 NIA -265.L -202.6 St. Inigoes, MD 381000 0762300 70.5 2300.9 NO -175.1 -98.3 NIA -273.: -219.6 NO NO Profile (Is path Total Interfering under Estimated Profiled Path Power Out-of Bearing Distance 250 FSL OH-Loss OH-Loss Loss Level In-Band Band Radar Location Lat (N) Lon (w) (deg.) (mi) miles?) (dB) (dB) (dB) (dB) (dBWIMHz) Interference? Overload? Moorestown, NJ 395849 0745630 67.0 2373.2 NO -175.3 -98.8 NIA -274.1 -204.4 NO NO Wallops Island, VA 375600 0752800 70.8 2353.2 NO -175.3 -98.7 N/A -273.9 -204.1 NO NO Profile (Is path Total Interfering under Estimated Profiled Path Power Out-of Bearing Distance 250 FSL OH-Loss OH-Loss Loss Level In-Band Band Radar Location Lat (N) Lon (w) (deg.) (mi) miles?) (dB) (dB) (dB) (dB) (dBW1MHz) Interference? Overload' Bath, ME 435425 0694848 59.9 2643.7 NO -176.3 -100.7 NIA -277.0 -210.0 NO NO Bremerton, WA 473324 1223811 344.7 993.2 NO -167.8 -83.7 NIA -251.5 -185.4 NO NO Everett, WA 475858 1221354 346.3 1015.3 NO -168.0 -84.1 NIA -252.0 -186.0 NO NO Mayport, FL 302334 0812427 86.9 2105.9 NO -174.3 -96.7 NIA -271.0 -192.3 NO NO Norfolk, VA 365200 0762100 73.0 2311.2 NO -175.1 -98.4 NIA -273.5 -203.7 NO NO Pascagoula, MS 302253 0882933 90.4 1693.8 NO -172.4 -93.0 NIA -265.4 -186.6 NO NO Pearl Harbor, HI 212000 1580000 260.6 2653.2 NO -176.3 -100.8 NIA -277.1 -172.1 NO NO Portland, ME 434100 0701800 60.3 2618.1 NO -176.2 -100.5 NIA -276.7 -209.7 NO NO San Diego CA 324105 1170800 182.0 76.6 YES -145.5 -74.5 -74.5 -220.0 -153.4 YES NO 19700 Janelia Farm Blvd @Ashburn,VA 20147 USA 703.726.5500

Profile (Is path under Estimated Profiled out-of Bearing Distance 250 FSL OH-LOSS OH-LOSS Operational Area Lat (N) Lon (w) (deg.) (mi) miles?) (dB) 00 AFWTF (North Range) AFWTF (NR)I 183000 0670000 97.7 3285.4 NO -178.2 -104.5 NIA -282.6 -196.8 NO NO AFWTF (NR)2 200000 0670000 95.7 3234.5 NO -178.0 -104.2 NIA -282.2 -196.3 NO NO AFWTF (SR)7 153300 0660600 100.7 3443.9 NO -178.6 -105.3 NIA AFWTF (SR)8 153900 0662300 100.8 3423.6 NO -178.5 -105.2 NIA AFWTF (SR)9 163000 0662300 99.8 3392.5 NO -178.4 -105.0 NIA AFWTF (SR)10 163000 0675500 100.7 3302.7 NO -178.2 -104.6 NIA Interference Analysis Report for Nuevo, CA E0203 15

Profile (Is path under I I 1 I Total Interfering Estimated Profiled Path Power - 1 l out-of l Bearing Distance 250 FSL OH-Loss OH-Loss Loss Level In-Band Band Operational Area Lat (N) Lon (w) (deg.) (mi) miles?) (dB) (dB) (dB) (dB) (dBW1MHz) Interference? Overload? AUTEC AUTECI 1252000 ]0780500 I 94.3 I 2419.9 I NO -175.5 -99.2 NIA -274.71 -195.9 I NO I NO IAUTEC2 1252000 10774500 I 94.1 I 2439.4 I NO -175.6 -99.3 NIA -274.91 -196.1 I NO I NO AUTEC3 232500 0762000 96.3 2577.9 NO -176.0 -100.3 NIA -276.3 -190.4 NO NO AUTEC4 232500 0771500 96.9 2524.4 NO -175.9 -99.9 NIA -275.8 -189.9 NO NO NO I 1 1 : ~::[.~1 Fl 1 i! 1 GoM2 292521 10864800 91.6 I 1811.1 I NO GoM3 284101 10864800 I 93.3 1 1827.2 I NO GoM4 285231 0874400 93.4 1768.7 NO NO Pacific Missile Range Facility (PMRF) PMRFI 220000 1594500 262.7 2733.5 NO -176.6 -101.3 1i;l:: PMRF2 220800 11620000 I 264.2 1 2861.0 I NO -176.9 -102.1 PMRF3 224500 11614000 I 264.9 I 2822.2 I NO -176.8 -101.8 NIA -278.7 -173.7 PMRF4 260000 1581500 268.0 2528.1 NO -175.9 -99.9 NIA -275.8 -192.6 NO Pearl Harbor South OPAREA PHSI 190800 1591500 258.3 2800.8 NO -176.8 -101.7 NIA -278.5 -173.5 NO NO PHS2 210000 1580800 260.2 2672.0 NO -176.4 -100.9 NIA -277.2 -172.3 NO NO PHS3 1210000 )I573600 1 259.8 I 2641.0 I NO -176.3 -100.7 NIA -276.9 -172.0 NO NO PHS4 (191800 11562000 1 256.4 I 2627.0 I NO -176.2 -100.6 NIA -276.81 -171.9 I NO I NO IPHS5 1184900 11574500 I 256.8 I 2725.7 I NO -176.5 -101.2 NIA -277.81 -172.8 I NO I NO Interference Analysis Report for Nuevo, CA E0203 15

1 Table 7 Naval AtSea Operational Areas (continued) Profile (Is path under Estimated Profiled out-of Bearing OH-LOSS OH-LOSS miles? (dB) (dB) 601.8 526.5 329.6 NO -158.2 YES 2374.6 NO -175.3 -98.8 vc2 1384500 (0743000 I 69.2 2402.2 NO -175.4 -99.0 vc3 1374500 )0724000 I 70.8 2510.7 NO -175.8 -99.8 Ivc4 1350600 10724000 1 75.4 2538.2 NO -175.9 NO NO vc5 1320000 10771200 I 82.2 2322.2 NO -175.1 -98.4 NIA NO VC6 1342400 10773000 I 77.9 2270.3 NO -174.9 -98.1 NIA -273.0 -199.5 I NO ~ vc7 354000 0752500 75.0 -98.8 -274.2 -200.7 I NO I NO VC8 370000 0755000 72.6 -98.6 -273.81 -204.0 I NO I NO Interference Analysis Report for Nuevo, CA E0203 15

1 Table 8 Land-Based Radar Test and Trainina Sites Profile (Is path Total Interfering under Estimated Profiled Path Power out-of Bearing Distance 250 FSL OH-LOSS OH-LOSS LOSS Level In-Band Band Radar Location Lat (N) Lon (w) (deg.) (mi) miles?) 0 (dB) (dB) ~ (dB) dBWlMHz iterference' herload? Fort Lewis WA 470525 1223510 344.2 962.0 NO -167.5 -83.1 NIA -250.f -184.6 NO NO Yakima Firing WA 464018 1202135 350.0 905.1 NO -167.0 -82.1 NIA -249.( -183.0 NO NO Fort Carson CO 383810 1044750 60.5 763.5 NO -165.5 -79.1 NIA -244.f -177.6 NO NO Fort Rliey KS 385813 0965139 66.4 1182.8 NO -169.3 -86.7 NIA -256.( -186.2 NO NO Fort Shafter HI 211800 1574900 260.4 2643.6 NO -176.3 -100.7 NIA -277.( -172.0 NO NO Hunter AAF GA 1320100 10810800 83.6 2093.7 NO -174.2 -96.6 NIA -270.! -197.4 NO NO Fort Gillem GA 1333600 10841900 81.3 1887.9 NO -173.3 -94.8 NIA -268.: -194.7 NO NO NO -173.2 -94.6 NIA -267.! -194.4 NO NO NO -174.1 -96.4 NIA -270.f -197.1 NO NO * NO -173.1 -94.4 NIA -267.! -188.7 NO NO YES -152.4 -73.1 -73.1 -225.! -141.6 YES NO NO -169.0 -86.1 NIA -255.' -176.3 NO NO NO -172.8 -93.7 -196.7 NO NO NO -174.6 -97.3 -198.4 NO NO NO -172.4 -92.9 NIA -265.: -195.5 NO NO NO -170.8 -89.8 NIA -260.! -181.8 NO NO NO -170.9 -90.0 NIA -260.! -191.I NO NO 12.7 I 103.5 YES -148.1 -68.8 -68.8 -216.! -150.9 YES NO NO -168.4 -85.0 NIA -253.1 -179.9 NO NO NO -163.9 -75.9 NIA -239.1 -168.9 NO NO NO -170.0 -88.2 NIA -258.: -188.5 NO NO NO -175.2 -98.5 NIA -273.; -206.7 NO NO NO -173.9 -96.0 NIA -269.! -196.4 NO NO NO -171.8 -91.9 NIA -263.; -196.7 NO NO r NO -175.4 -98.9 NIA -274.: -204.6 NO NO Parks Reserve CA 374254 1214218 317.5 374.6 NO -159.3 -66.8 NIA -226.1 -160.0 NO- NO Aberdeen Provin MD 392825 0760655 68.0 2310.4 NO -175.1 -98.4 NIA -273.4 -203.7 NO NO Fort Huachuca AZ 313500 1102000 109.4 422.1 NO -160.3 -68.8 NIA -229.: -160.3 NO NO Fort Monmouth NJ 401900 0740215 66.3 2421.5 NO -175.5 -99.2 NIA -274.: -204.9 NO NO Interference Analysis Report for Nuevo, CA E0203 15

Distance (mi) 2391.8 1746.8 623.6 Profile (Is path under 250 miles?) NO NO NO 0 -175.4 -172.7 -163.7 -99.0 -93.5 -75.6 1 Total Interfering P i i d Path FSL OH-LOSS OH-LOSS Loss Power Level ,274.4 -204.6 ,266.2 -192.7 ,239.3 -168.5 In-Band NO NO NO out-of Band (dB) (dBWIMHz) Interference? Overload' NO NO NO 2265.1 NO -174.9 -98.0 NIA ,272.9 -203.2 NO NO 279.0 NO -156.7 -61.6 .218.4 -165.4 NO NO 2090.2 NO -174.2 -96.6 ,270.8 -201.I 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 calculations 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 Nuevo, CA E0203 15

6.0 Conclusions Calculations were performed to assess the electromagnetic compatibility (EMC) between the radars listed above and an adjacent-band FSS earth station receiver in Nuevo, CA. The interference assessment for 3625 - 3700 MHz at this site identified 4 cases of potential interference. However, due to their relatively low interference margin and the presence of above terrain obstacles Intelsat does not feel that these case will present any problems to the operation of this earth station. Total Number of Paths Lat (N) Lon (W) Out-of-Band In-Band 4 sites Overload? Interference? San Diego CA 324105 1170800 No Yes SOCAL4 300000 1203000 No Yes Yuma Proving AZ 330114 1141855 No Yes Fort Irwin CA 351536 1164102 No Yes Interference Analysis Report for Nuevo, CA E0203 15


Document Created: 2004-04-14 10:40:56
Document Modified: 2004-04-14 10:40:56
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC