Attachment STA Request

This document pretains to SES-STA-20110331-00395 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2011033100395_879958

SES Americom, Inc. Request for Special Temporary Authority for Earth Station E000102 Page 1 of 3 STA REQUEST By this application and pursuant to Section 25.120 of the Commission’s Rules, 47 C.F.R. § 25.120, SES Americom, Inc. (“SES Americom”) seeks special temporary authority (“STA”) for thirty days beginning on April 4, 2011 to operate three Very Small Aperture Terminal (“VSAT”) antennas in order to perform a demonstration for U.S. government customers. The antennas will operate with the AMC-21 spacecraft at 124.9° W.L. in the standard Ku-band and a hub station licensed to SES Americom under call sign E000102, located in Bristow, VA. Grant of the STA will serve the public interest by permitting SES Americom to respond to customer demand and to accommodate the schedules of the U.S. government personnel who will be attending the demonstration. SES Americom seeks authority to operate the following antenna models during the period of the STA: • One 1.2 meter antenna (trade name “Hawkeye”) • One .96 meter antenna (trade name “Cheetah”) • One .6 meter antenna (trade name “Panther”) As discussed below, the 1.2 meter and .96 meter antennas have previously been licensed by the Commission, and full technical data regarding them is already on file. The .6 meter antenna is a newer model, and technical information regarding that antenna is attached. 1.2 Meter Antenna: The 1.2 meter antenna complies with the gain patterns specified in Section 25.209 of the Commission’s rules and has previously been licensed for ALSAT operation.1 SES Americom hereby incorporates by reference the technical information 1 See Radio Station Authorization, AVL Technologies, Call Sign E030130, File No. SES-MOD- 20080605-00708, granted July 28, 2008 (“E030130 License”), model number AVLTF1200.

SES Americom, Inc. Request for Special Temporary Authority for Earth Station E000102 Page 2 of 3 regarding the 1.2 meter antenna that is on file with the Commission.2 As demonstrated in the technical materials attached hereto, in its operation of the 1.2 meter antenna, SES Americom will not exceed the power levels previously authorized. .96 Meter Antenna: The .96 meter antenna also complies with the gain patterns specified in Section 25.209 of the Commission’s rules and has previously been licensed by the Commission for communications with designated spacecraft.3 SES Americom hereby incorporates by reference the technical information regarding the .96 meter antenna that is on file with the Commission.4 As demonstrated in the technical materials attached hereto, in its operation of the .96 meter antenna, SES Americom will not exceed the power levels previously authorized. To SES Americom’s knowledge, the .96 meter antenna has not been specifically licensed for operations with AMC-21, a space station that is licensed by Gibraltar to a wholly- owned subsidiary of SES Americom and is on the Commission’s Permitted Space Station List.5 However, in support of its application for the E030130 License, AVL Technologies has already submitted documentation that it has successfully coordinated the operations of this antenna model using capacity on the satellites positioned on either side of AMC-21 at 123° W.L. and 127° W.L.6 As a result, operators of all the spacecraft within six degrees of AMC-21 at 124.9° W.L. have previously evaluated the antenna’s operational characteristics and consented to its use. 2 In addition, a specification sheet for the antenna can be accessed at: http://www.globalcoms.com/Hawkeye_III_Lite_1.2M.asp (last checked on March 31, 2011). 3 See E030130 License, model number AVL TF 9066. 4 In addition, a specification sheet for the antenna can be accessed at: http://www.globalcoms.com/products_vsat_Cheetah.asp (last checked on March 31, 2011). 5 See http://www.fcc.gov/ib/sd/se/permitted.html (last checked on March 31, 2011). 6 See Certifications 1 and 2 submitted with File No. SES-MOD-20080605-00708.

SES Americom, Inc. Request for Special Temporary Authority for Earth Station E000102 Page 3 of 3 .6 Meter Antenna: To SES Americom’s knowledge the .6 meter antenna has not previously been authorized for regular operation by the Commission. Attached hereto in support of the STA request for this antenna are materials demonstrating that the antenna complies with the off-axis EIRP envelope in Section 25.218 of the Commission’s rules, as well as a radiation hazard report.7 Grant of the requested authority will serve the public interest by enabling SES Americom to perform the demonstration requested by U.S. government customers. Furthermore, grant of SES Americom’s STA request will not adversely affect other operators. As noted above, the 1.2 meter and .96 meter antennas have already been licensed by the Commission, and the technical information provided here demonstrates that temporary operation of the .6 meter antenna is consistent with Commission technical requirements. SES Americom is an experienced space station and earth station operator and will conduct the proposed demonstration consistent with established industry practices. The demonstration will be performed using AMC-21 transponder 18K, which has a center frequency of 14.360 GHz (the range is 14.342-14.378 GHz). Operation of the terminals during the period of the proposed STA will be on a non-harmful interference basis. Thus, in the unlikely event of a complaint of harmful interference, SES Americom will immediately terminate the demonstration. For the foregoing reasons, SES Americom respectfully requests an STA to permit operation of the three antennas described herein with the AMC-21 spacecraft at 124.9° W.L. and using the hub station E000102. 7 In addition, a specification sheet for the antenna can be accessed at: http://www.globalcoms.com/Panther_Ku.asp (last checked on March 31, 2011).

Technical Materials: Power Calculations Ku-Band .6m 3M42G7W Ku-Band .96m 3M42G7W Ku-Band 1.2m 3M42G7W Carrier Carrier Carrier Bandwidth 3.42 Mhz ENTER Bandwidth 3.42 Mhz ENTER Bandwidth 3.42 Mhz ENTER Max Input ENTER Max Input ENTER Max Input ENTER EIRP RF Transmit Power EIRP RF Transmit Power EIRP RF Transmit Power Density -23.51 dBW/4 kHz Ku-Band (max = -14) Density -17.6 dBW/4 kHz Ku-Band (max = -14) Density -16.82 dBW/4 kHz Ku-Band (max = -14) Antenna Antenna Antenna Transmit Transmit Transmit Gain 36.85 dBi ENTER Gain 41.20 dBi ENTER Gain 43.50 dBi ENTER Max EIRP Max EIRP Max EIRP Density 13.34 dBW/4 kHz Enter in IV.E of sheet Density 23.60 dBW/4 kHz Enter in IV.E of sheet Density 26.68 dBW/4 kHz Enter in IV.E of sheet Max Max Max EIRP/carrier 42.66 dBW EIRP/carrier 52.92 dBW EIRP/carrier 56.00 dBW W - from W - from W - from Power at radhaz line Power at radhaz line Power at radhaz line Flange 4.42 4 ENTER Flange 14.90 4 ENTER Flange 17.80 4 ENTER Total EIRP Total EIRP Total EIRP for all Must be greater than for all Must be greater than for all Must be greater than carriers 43.30 dBW Max EIRP/carrier carriers 52.93 dBW Max EIRP/carrier carriers 56.00 dBW Max EIRP/carrier Enter in Max EIRP/carrier on RFI Form Enter in Max EIRP/carrier on RFI Form Enter in Max EIRP/carrier on RFI Form for Comsearch for Comsearch for Comsearch Smallest Smallest Smallest angle of angle of angle of elevation 5.00 degrees ENTER elevation 15.00 degrees ENTER elevation 10.00 degrees ENTER Max EIRP Max EIRP Max EIRP density density density toward toward toward horizon -8.98 dBW/4 kHz horizon -15.00 dBW/4 kHz horizon -9.82 dBW/4 kHz

.6 Meter Panther: Section 25.218 Compliance FCC 47 CFR 25.218 Off-Axis ESD Compliance CONUS X-Pol. Conf. f = 14.125 GHz 16 Plot 1a_W_M (W)ide Cut / (M)id-band 14125 MHz E-plane (EL) 12 14125 MHz H-plane (AZ) On-Axis EIRP Density 13.34 dBW/4KHz FCC 25.218 Convenional Ku 11.7-12.2 / 14.0-14.5 GHz, 12/14 Band 8 ?forCompliant to FCC 25.218 Off-axis EIRP envelope for FSS ES operation conventional Ku-Band digital ES operation for 1 Mbps, BPSK SF2 TPC 0.533, 4 (Mod.Ref. 1). In the region 1.5q d T d 7q, with an ESD output of 13.34 dBW/4KHz. 0 -4 -8 EIRP (dBW/4KHz) -12 -16 -20 -24 -28 -32 -36 -40 -44 -48 -52 -180 -160 -140 -120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 180 Angle (degrees)

FCC 47 CFR 25.218 Off-Axis ESD Compliance CONUS X-Pol. Conf. f = 14.125 GHz 16 Plot 1a_N_M (N)arrow Cut / (M)id-band 14125 MHz E-plane (EL) 12 14125 MHz H-plane (AZ) On-Axis ESD +13.34 dBW/4KHz FCC 25.218 Convenional Ku 11.7-12.2 / 14.0-14.5 GHz 8 4 0 -4 -8 EIRP (dBW/4KHz) -12 -16 -20 -24 -28 ?forCompliant to FCC 25.218 Off-axis EIRP envelope for FSS ES operation conventional Ku-Band digital ES operation for 1 Mbps, BPSK SF2 TPC 0.533, (Mod.Ref. 1). In the region 1.5q d T d 7q, with an ESD output of 13.34 dBW/4KHz. -32 -36 -40 -44 -48 -52 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 Angle (degrees)

FCC 47 CFR 25.218 Off-Axis ESD Compliance CONUS X-Pol. Conf. f = 14.5 GHz 16 Plot 1a_W_H (W)ide cut / (H)igh-band 14500 MHz E-Plane (EL) On-Axis EIRP density 13.34 dBW/4KHz 12 14500 MHz H-Plane (AZ) FCC 25.209 Convenional Ku 11.7-12.2 / 14.0-14.5 GHz 8 4 0 -4 ?forCompliant to FCC 25.218 Off-axis EIRP envelope for FSS ES operation conventional Ku-Band digital ES operation for 1 Mbps, BPSK SF2 TPC 0.533, (Mod.Ref. 1). In the region 1.5q d T d 7q, with an ESD output of 13.34 dBW/4KHz. Off-Axis EIRP (dBW/4KHz) -8 -12 -16 -20 -24 -28 -32 -36 -40 -44 -48 -52 -180 -160 -140 -120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 180 Angle (degrees)

FCC 47 CFR 25.218 Off-Axis ESD Compliance CONUS X-Pol. Conf. f = 14.5 GHz 16 Plot 1a_W_H (N)arrow cut / (H)igh-band 14500 MHz E-Plane (EL) 12 14500 MHz H-Plane (AZ) On-Axis ESD +13.34 dBW/4KHz FCC 25.209 Convenional Ku 11.7-12.2 / 14.0-14.5 GHz 8 4 0 -4 Off-Axis EIRP (dBW/4KHz) -8 -12 -16 -20 -24 -28 -32 ?forCompliant to FCC 25.218 Off-axis EIRP envelope for FSS ES operation conventional Ku-Band digital ES operation for 1 Mbps, BPSK SF2 TPC 0.533, (Mod.Ref. 1). In the region 1.5q d T d 7q, with an ESD output of 13.34 dBW/4KHz. -36 -40 -44 -48 -52 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 Angle (degrees)

Radiation Hazard Analysis 0.6 Meter Panther Bristow, Virginia 20136 Introduction A radiation hazard anaylsis is presented for a 0.6 meter Ku band aperture antenna to be installed in BristowVirginia at the SES WORLD SKIES Washington Mediaport. This Radiation Analysis calculates the non-ionizing radiation levels expected to be emitted from the earth station on a worse cases basis and is performed in accordance with the Federal Communications Commissions Office of Engineering and Technology (OET) Bulletin, No. 65. Requirements OET 65 outlines the maximum permissible exposure limits in two cases for operation in this frequency range. 1. The first case is the maximum level that a person may be exposed to in the general population. The exposure limit is defined as a non-ionizing power level equal to 1 milliwatt per centimeter squared averaged over a thirty minute period. 2. The second case is a controlled environment where the maximum permissible exposure limit must not exceed 5 milliwatts per centimeter squared averaged over any six minute period. Summary The results indicate that no significant hazard will be presented to the general population and will be fully mitigated in the controlled area by the use of procedures that require the removal of transmit power before accessing the area around the main reflector. Analysis This analysis was performed on seven zones with the results shown in Radiation Hazard Zones. The Table labeled Input Values provides the - input data required to perform the analysis. The table labeled OET 65 Calculated Values provides the intermediate calculation used to perform the assessment in accordance with OET 65. The Analysis is performed for each a the each of seven radiation zones as shown in figure 1 – Analysis Zones. These zones are: 1. Point between the feed and the sub-reflector 2. The power at the surface of the antenna 3. The power level between the main reflector and ground 4. The near-field or Fresnel region in which the maxima can be reached before the field starts to diminish with distance 5. The Transition region where power begins to decrease inversely with distance from the antenna 6. The Far Field or Fraunhofer region where power decreases inversely with the square of the distance. This is the point at which the antenna beam is fully collimated 7. The off axis level in the near field. This is defined as the area outside of the main beam removed and at least one antenna diameter removed from the main beam Generated 3/30/2011 1 of 2 rad haz auto report panther 06m.xls

Radiation Hazard Analysis Operator: SES WORLD SKIES Location Designation: Washington Mediaport FCC Callsign: County: Prince William SES ID: Panther Town: Bristow STA: Pending State/Zip: Virginia 20136 Input Values Value Unit Band Frequency D = Aperture Diameter 0.60 Meters L 1000-2000 d = Subreflector Diameter 0.15 Meters S 2000-4000 G = Antenna Gain 36.85 dBi C 4000-8000 FCC Designation Ku Band X 8000-12500 F = Frequency 14.125 GHz Ku 12500-18000 P = Transmitter Power Watts: 7 Watts K 18000-25500 R ua = closest point to uncontrolled area 20 meters Ka 26500-40000 Elevation angle at closest point R ua 5 Degrees O 40000-50000 Height (AGL) 1.74 meters V 50000-75000 OET 65 Calculated Values Formula Value Unit c λ= Wavelength 0.0212 meters F (G/10) G = Antenna Gain 10 4841.723676 (W) linear 2 Gλ /4π η = Apperture Efficiency 61% percentage πD /4 2 A = Area of reflector πR2 0.283 meters 2 a = area of subreflector πr2 176.715 cm 2 D2 4.240 meters R nf = Near-Field Region 4λ 0 Meters AGL >Rnf 4.240 >meters R t = Transition Region <Rff 10.177 <meters R ff = Far Field Region 0.6D2 10.177 meters λ 1 Meters AGL Exposure Limits Radiation Analysis Zone Formula Level Value General Public Occupational <1mW/cm2 <5mW/cm2 4P >FCC MPE See >FCC MPE See 1 Power Subreflector 158.448 mW/cm2 a Note 1 Note 2 4P >FCC MPE See >FCC MPE See 2 Antenna Surface 9.903 mW/cm2 A Note 1 Note 2 P >FCC MPE See 3 Main Reflector Ground 2.476 mW/cm2 <FCC MPE A Note 1 4η P >FCC MPE See >FCC MPE See 4 S nf =Near-Field Power Density 6.079 mW/cm2 A Note 1 Note 2 >FCC MPE See >FCC MPE See 5 S t = Max Transition Power Density < Snf 6.079 mW/cm2 Note 1 Note 2 PG >FCC MPE See 6 S ff = Max Far field Power Density 2.604 mW/cm2 <FCC MPE 4πRff2 Note 3 7 Off Access Level Near Field Snf - 20 dB 0.06079 mW/cm2 <FCC MPE <FCC MPE Notes 1. The antenna is installed in a controlled location access is restricted to authorized personnel only. The antenna is marked with RF Radiation Hazard signage. 2. Inside the controlled area, MPE levels exceed the MPE exposure for occupational levels. The levels will be reduced to safe MPE by removing power to the transmitters when work is performed on or around the antenna. This area can only be accessed by qualified personnel. 3. The field develops 1.74 meters above ground level at the minimum elevation angle which is not accessable to the general public. Generated 3/30/2011 2 of 2 rad haz auto report panther 06m.xls


Document Created: 2011-03-31 19:33:02
Document Modified: 2011-03-31 19:33:02
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