Attachment Exhibit A

This document pretains to SES-LIC-20190422-00538 for License on a Satellite Earth Station filing.

IBFS_SESLIC2019042200538_1662472

NARRATIVE STATEMENT: EARTH STATION LICENSE APPLICATION By this application, WorldVu Satellites Limited (“OneWeb”) seeks authority to operate twenty technically identical CPI 3.5 meter antennas in Santa Paula, CA (the “Santa Paula Earth Station”). The Santa Paula Earth Station will provide gateway connectivity to OneWeb’s low earth orbit (“LEO”), non-geostationary (“NGSO”), fixed-satellite service (“FSS”) system, which was granted U.S. market access in June 2017. 1 OneWeb’s first six production satellites were successfully launched on February 27, 2019. 2 The Santa Paula Earth Station will allow OneWeb to expand its coverage and service in the United States. Additional gateway facilities are a critical part of OneWeb’s network infrastructure as it prepares to begin commercial service. 3 Grant of this application will serve the public interest by facilitating OneWeb’s ability to deliver ubiquitous, state-of-the-art broadband access to previously unserved and underserved populations in the United States. I. Communications with Non-U.S.-Licensed Space Stations OneWeb hereby incorporates by reference the OneWeb U.S. Market Access Grant to demonstrate compliance with the requirements of Section 25.137 of the Commission’s rules for earth station applicants proposing to communicate with non-U.S.-licensed space stations. 4 II. Spectrum Use and Sharing The Santa Paula Earth Station will be mounted on fixed platforms. Although the angle at which the antennas point will change with the tracking of OneWeb’s in-orbit satellites, each platform will remain stationary. The Santa Paula Earth Station will communicate with OneWeb’s system in the following frequency bands: • 17.8-18.6 GHz (downlink) • 27.5-29.1 GHz (uplink) • 18.8-19.3 GHz (downlink) • 29.5-30.0 GHz (uplink) 1 See WorldVu Satellites Limited, Petition for a Declaratory Ruling Granting Access to the U.S. Market for the OneWeb NGSO FSS System, Order and Declaratory Ruling, 32 FCC Rcd 5366 (2017) (“OneWeb U.S. Market Access Grant”) (granting OneWeb market access for its LEO NGSO FSS satellite constellation). 2 See Caleb Henry, OneWeb’s first six satellites in orbit following Soyuz launch, SPACENEWS (Feb. 27, 2019), https://spacenews.com/first-six-oneweb-satellites-launch-on-soyuz-rocket/. 3 OneWeb filed applications for three gateway earth stations in the United States in 2018. See IBFS File Nos. SES-LIC-20180604-01082, Call Sign E180260 (filed June 4, 2018); SES-LIC- 20180727-02075, Call Sign E181293 (filed July 27, 2018); SES-LIC-20180727-02076, Call Sign E181294 (filed July 27, 2018). 4 See 47 C.F.R. § 25.137. 1

As illustrated below, OneWeb’s Santa Paula Earth Station will operate in a manner consistent with the Commission’s rules. A. Uplink 1. 27.5-29.1 GHz The Upper Microwave Flexible Use Service (“UMFUS”) has a primary designation in the 27.5-28.35 GHz band in the Commission’s Ka-band Plan, with a secondary designation for FSS. 5 FSS earth stations are permitted in the 27.5-28.35 GHz band and are not required to provide interference protection to future UMFUS operators if certain conditions are met. 6 The Commission clarified in the NGSO Order that “NGSO FSS systems must operate on an unprotected, non-interference basis with respect to GSO FSS networks” in the 27.5-28.35 GHz band. 7 FSS is primary in the 28.35-28.6 GHz band, and the Ka-band Plan designated NGSO FSS as secondary to GSO FSS in this band. 8 In the 28.6-29.1 GHz band, NGSO FSS is primary in the U.S. Table of Frequency Allocations and has a primary designation in the Commission’s Ka-band Plan. 9 Terrestrial Coordination. Section 25.136(a)(4) of the Commission’s rules allows earth station licensees in the 27.5-28.35 GHz band to operate in accordance with the terms of their authorization without providing additional interference protection to UMFUS stations when four 5 Update to Parts 2 and 25 Concerning Non-Geostationary, Fixed-Satellite Service Systems and Related Matters, Report and Order and Further Notice of Proposed Rulemaking, 32 FCC Rcd 7809 (2017) (“NGSO Order”); NGSO Order, 32 Rcd at 7850, App. B (“Ka-band Plan”); see also 47 C.F.R. § 25.136(a) (“FSS is secondary to the Upper Microwave Flexible Use Service in the 27.5-28.35 GHz band.”). 6 See 47 C.F.R § 25.136(a); see also Use of Spectrum Bands Above 24 GHz For Mobile Radio Services, Report and Order and Further Notice of Proposed Rulemaking, 31 FCC Rcd 8014, 8036 ¶ 54 (2016). 7 NGSO Order, 32 FCC Rcd at 7817, ¶ 23. 8 See Ka-band Plan. 9 47 C.F.R. § 2.106, NG165; see also Ka-band Plan. Additionally, in the OneWeb U.S. Market Access Grant, the Commission authorized OneWeb’s uplink operations in this band. OneWeb U.S. Market Access Grant, 32 FCC Rcd at 5366, ¶ 1. 2

conditions are met. 10 Appendix A to this Narrative Statement demonstrates the Santa Paula Earth Station will satisfy all four conditions. The Comsearch Coordination Report attached separately as Exhibit B 11 to this application demonstrates that in the 27.5-28.35 GHz band: (1) OneWeb can operate the Santa Paula Earth Station without causing harmful interference to existing terrestrial deployments, and (2) OneWeb coordinated with existing licensees in compliance with the Commission’s rules. GSO Coordination. OneWeb makes no claim of interference protection from U.S.- licensed GSO FSS systems in the 27.5-28.6 GHz band. The ITU developed uplink equivalent power flux density (“EPFDup”) limits to protect co-frequency GSO FSS operations from unacceptable interference from NGSO FSS systems operating in the same frequencies. Specifically, in accordance with Article 22 of the ITU Radio Regulations, if the applicable EPFDup limits are met, then the Commission will consider the NGSO FSS satellite system to have met its obligations of protecting GSO FSS networks from unacceptable interference. 12 OneWeb has demonstrated that it meets the applicable ITU EPFDup limits in all frequency ranges where these limits apply and certifies its operations will be compliant with Article 22 and Resolution 76 of the ITU’s rules. 13 Consequently, the transmissions from the Santa Paula Earth Station will sufficiently protect GSO FSS systems. 10 See 47 C.F.R. § 25.136(a)(4); see also Use of Spectrum Bands Above 24 GHz for Mobile Radio Services, Second Report and Order, Second Further Notice of Proposed Rulemaking, Order on Reconsideration, and Memorandum Opinion and Order, 32 FCC Rcd 10988, 11080, Appendix A (2017) (“Second Spectrum Frontiers Order”) (adopting changes to this rule section). 11 The emission designators provided in the Comsearch Reports in Exhibit B reflect the carrier noise bandwidth (3 dB bandwidth), which is smaller than the necessary bandwidth (typically 15 dB bandwidth), that has been used for this earth station application and for the OneWeb U.S. Market Access Grant. The difference in bandwidth is less than ten percent. Therefore, this variance has no impact on the data culling function performed by Comsearch and provides a more accurate portrayal of the interference potential of OneWeb’s earth station emissions since the power-spectral density and the receiver noise bandwidth are computed based on the actual noise bandwidth instead of the necessary or occupied bandwidth. 12 See NGSO Order, 32 FCC Rcd at 7820, ¶ 32 (“Any NGSO FSS system operating in compliance with these limits is considered as having fulfilled its obligation under Article 22 of the ITU Radio Regulations not to cause unacceptable interference to any GSO network.”). 13 See WorldVu Satellites Limited, Petition for a Declaratory Ruling Granting Access to the U.S. Market for the OneWeb NGSO FSS System, IBFS File No. SAT-LOI-20160428-00041, Technical Narrative (“Market Access Application Technical Narrative”) at 33-34; A2-9 – A2-12. 3

2. 29.5-30.0 GHz The 29.5-30.0 GHz band is allocated to the FSS on a co-primary basis with the Mobile Satellite Service (“MSS”), with NGSO FSS having a secondary designation to GSO FSS in the Ka-band Plan. 14 OneWeb makes no claim of interference protection from U.S.-licensed GSO FSS systems in this band, 15 and the transmissions from the Santa Paula Earth Station will sufficiently protect GSO FSS systems because the OneWeb system meets the applicable ITU EPFDup limits in all frequency ranges where these limits apply. 16 B. Downlink Federal Coordination. Space-to-Earth operations in the bands between 17.7-20.2 GHz must complete coordination with U.S. Federal systems in accordance with footnote US334 to the United States Table of Frequency Allocations, 47 C.F.R. § 2.106, prior to being used. Footnote US334 lists several locations where federal space and earth station operations are primary. However, the Santa Paula Earth Station is located outside the areas of concern in US334. Therefore, US334 is not applicable to the instant application. 1. 17.8-18.3 GHz In the NGSO Order, the Commission allocated the 17.8-18.3 GHz band on a primary basis to the terrestrial fixed service (“FS”) and on a secondary basis for FSS, subject to international power flux-density (“PFD”) limits. 17 Before the NGSO Order was implemented, OneWeb demonstrated that secondary use of this band for its downlink operations will not cause harmful interference to FS operations because OneWeb’s system meets the ITU PFD limits. 18 Consequently, the Commission authorized OneWeb’s space stations to transmit in this band despite being on a non-conforming basis at the time, before implementation of the NGSO 14 47 C.F.R. § 2.106; see also Ka-Band Plan. 15 See OneWeb U.S. Market Access Grant, 32 FCC Rcd at 5377, ¶ 23(j). Similarly, OneWeb will operate in this band without seeking protection or causing harmful interference to any co- frequency MSS operations. 16 Market Access Application Technical Narrative at 33-34; A2-1 – A2-6. OneWeb believes that the EPFDup limits associated with the protection of GSO FSS networks would also adequately protect any GSO MSS network. 17 NGSO Order, 32 FCC Rcd at 7812, ¶¶ 7-8. 18 See Market Access Application Technical Narrative at 23-26; see also id. 4

Order. 19 Moreover, the Comsearch Interference Analysis Report attached as Exhibit B 20 to this application indicates that there will be no restrictions on OneWeb’s operations due to interference considerations in this band. 2. 18.3-18.6 GHz The 18.3-18.6 GHz band is allocated on a primary basis to the FSS, as the NGSO Order amended the Ka-band Plan to “allow NGSO FSS systems to operate on an unprotected, non- interference basis with respect to GSO FSS networks in the 18.3-18.6 GHz . . . band[], subject to international equivalent power flux-density (“EPFD”) limits.” 21 The ITU developed downlink EPFD (“EPFDdown”) limits to protect GSO FSS networks from unacceptable interference from NGSO FSS systems operating in the same frequencies. Like the EPFDup limits, if the NGSO FSS system meets the applicable EPFDdown limits, then the Commission will consider the NGSO FSS satellite system to have met its obligations to protect GSO FSS networks from unacceptable interference. OneWeb provided calculations for transmissions in this band showing that the OneWeb system meets the applicable ITU EPFDdown limits in all frequency ranges where these limits apply. 22 The Commission authorized OneWeb’s NGSO FSS system to transmit in this band. 23 3. 18.8-19.3 GHz The 18.8-19.3 GHz band is allocated to the FSS on a primary basis, and the Commission recently preserved the primary designation for NGSO FSS systems in the Ka-band Plan. 24 The Commission authorized OneWeb’s NGSO FSS system to transmit in this band. 25 19 See OneWeb U.S. Market Access Grant, 32 FCC Rcd at 5373, ¶ 16, 23. At the time of this grant, the Commission had not adopted a secondary allocation for FSS. 20 See supra note 11. 21 NGSO Order, 32 FCC Rcd at 7813, ¶¶ 9-10 (citing Section III.D.1). 22 See Market Access Application Technical Narrative at 33-34; A2-1 – A2-8. 23 OneWeb U.S. Market Access Grant, 32 FCC Rcd at 5366, ¶¶ 16, 23. 24 NGSO Order, 32 FCC Rcd at 7814, ¶ 14. 25 OneWeb U.S. Market Access Grant, 32 FCC Rcd at 5366, ¶ 1. 5

III. Antenna Patterns Appendix B certifies the Santa Paula Earth Station antenna patterns are in compliance with the relevant sections of Sections 25.132 and 25.209 of the Commission’s rules. IV. Radiation Hazard Report Appendix C provides the radiation hazard analysis for the Santa Paula Earth Station. V. FAA Notification FAA notification is not required as the Santa Paula Earth Station will not exceed 6.1 meters above ground. VI. Conclusion As explained above, grant of OneWeb’s Santa Paula Earth Station application is in the public interest and meets the requirements of the Commission’s rules. Respectfully submitted, WORLDVU SATELLITES LIMITED /s/ Mariah Shuman Mariah Shuman Head of Regulatory Affairs, Americas 1785 Greensboro Station Place Tower 3, Floor 8 McLean, VA 22102 1 (703) 731-0691 mariah@oneweb.net 6

APPENDIX A: 47 CFR § 25.136(a)(4) – UMFUS COMPLIANCE The Commission’s rules define four elements that, if met, permit an earth station licensee to operate in accordance with the terms of its authorization without providing additional interference protection to UMFUS stations in the 27.5-28.35 GHz band. 26 Based on the following analysis, the Commission should authorize the OneWeb Santa Paula Earth Station without requiring additional protection for future UMFUS licensees in Ventura County, California. 1. § 25.136(a)(4)(i) The Santa Paula Earth Station complies with this section of the Commission’s rules because there are only two other earth stations in the 27.5-28.35 GHz band in Ventura County, California. 27 2. § 25.136(a)(4)(ii) Section 25.135(a)(4)(ii) provides that, in a UMFUS license area with a population greater than 450,000 people, no more than 0.1 percent of the population may be within an earth station’s PFD contour that is equal to or exceeds -77.6 dBm/m2/MHz to avoid having to provide interference protection to future UMFUS operators. The area around the Santa Paula Earth Station falling within this PFD contour 28 is fully contained within Hendry County which has a population of just over 854,000 people. 29 As demonstrated below, the Santa Paula Earth Station’s PFD contour contains far fewer than 854 people. Using the ITU RR Appendix 7 Time-Variant Gain (TVG) method, each of the 20 antennas of the Santa Paula Earth Station would track a different OneWeb satellite above a 26 See 47 C.F.R. § 25.136(a)(4). 27 See IBFS File Nos. SES-MOD-20170920-01039, Call Sign E160022 (granted Dec. 6, 2017) (“SES Earth Station”); SES-LIC-20170807-00888, Call Sign E170163 (filed Aug. 7, 2017) (“HNS Earth Station”). 28 The PFD contour of the Santa Paula Earth Station was first computed using existing terrain features. As explained in Section 3 below, these would not be sufficient to comply with the PFD limit in Section 25.136(a)(4)(iii). To comply with the PFD limit, an additional earth berm (illustrated in Section 3 below) will be built at the site and the results described herein assume this additional feature will be present. 29 See QuickFacts Hendry County, Florida, United States Census Bureau (last viewed Feb. 15, 2019), https://www.census.gov/quickfacts/fact/table/venturacountycalifornia/PST045217. 7

minimum elevation angle of 5 degrees. 30 A composite (20 antennas) PFD contour was developed via proprietary software and compared with the Visualyse PRO software to ensure consistency. This composite assessed the cumulative distribution function (CDF or joint probability) of potential interference representing the EIRP towards the horizon and the propagation statistics by performing the convolution of the individual CDFs. As a result, the TVG method calculates the area where the PFD limit could be exceeded, assuming a PFD value that is not exceeded for 99% of the time. The following contains the Santa Paula Earth Station parameters 31 and the resulting PFD contour of the analysis: 32 Santa Paula Earth Station Parameters ES latitude (NAD 83) 34° 24' 7.2" ES longitude (NAD 83) 119° 4' 23.5" Ground Elevation (AMSL) 232.18 m ES antenna size 3.5 m ES input power spectral density -19.0 dBW/MHz ES minimum elevation angle 5° Number of antennas at site 20 30 In this analysis, the population data for each census block within the Santa Paula Earth Station PFD contour comes from the 2010 U.S. Census data. The propagation model implements a 1-arc second resolution SRTM Digital Terrain Elevation Data (DTED) profile based on the ITU-R Recommendation P.452-15. 31 It should be noted that the earth station input power spectral density is 3.4 dB lower than the maximum provided in the Application since the latter includes maximum uplink power control for rain events exceeding 6 dB. The clear sky value is the most appropriate calculation for this analysis because uplink power control is not used for fade levels less than 6 dB. 32 The Santa Paula Earth Station’s PFD contour is displayed using Google Maps and then superimposed on a U.S. Census map to estimate the population within the contour—note that the population counts for each census block are in parentheses. 8

mA unevveb ACCESS FOR EVERYONE ow [20 Pss 4Wt t D (0) At 4 Santa Paula complete berm |uptr W f{(D) PakC hn d

The next table displays the calculated population for each census block within the Santa Paula Earth Station PFD contour: Assumed Population of Contour Coverage Proportion Block Include 100% of Population Covered Only Completely ID Partially Pop. in all (estimated) Covered Blocks Covered Blocks Blocks 1000 93 5% 0 5 93 4004 17 5% 0 1 17 4000 0 50% 0 0 0 4001 0 75% 0 0 0 4002 0 50% 0 0 0 4003 0 50% 0 0 0 4028 0 75% 0 0 0 4021 0 25% 0 0 0 4022 0 75% 0 0 0 4026 4 25% 0 1 4 4031 0 75% 0 0 0 4040 5 50% 0 3 5 4041 0 80% 0 0 0 4044 0 10% 0 0 0 4036 0 50% 0 0 0 4034 0 10% 0 0 0 2002 0 50% 0 0 0 2004 50 25% 0 13 50 1040 6 25% 0 2 6 1037 1 10% 0 1 1 1007 31 25% 0 8 31 1048 20 5% 0 1 20 1027 0 10% 0 0 0 1009 0 25% 0 0 0 1030 0 5% 0 0 0 1050 11 5% 0 1 11 Total Population 0 36 238 The summation of the population in the Santa Paula Earth Station PFD contour is approximately: • 0 people (accounting for only the populations of those census blocks that are wholly contained within the contour and assuming the populations of the partially covered blocks fall outside the PFD contour); • 36 people (accounting for a very conservative proportion of the population of all the census blocks wholly and partially contained within the PFD contour, where in the blocks with partial contour coverage, a very conservative proportion of the blocks is calculated 10

based on the estimated geographical area of the block within the PFD contour over its total area); or • 238 people (accounting for the total population of all blocks touched by the PFD contour). The third column in the above table would likely never occur because the interference contour only covers a portion of the land area of all the blocks. Regardless, even assuming this population, 238 people is far less than the 854-person limit. To verify the population-count in this study and underscore the conservativeness of the estimated 238-population value, the interference contour was superimposed on a population distribution grid, 33 as depicted in the following figure: The estimated population within the contour is 83 people. Consequently, the conservative estimate of 238 people illustrates that the total population covered by the Santa Paula Earth Station’s PFD Contour is much less than the 854-person limit as set out by this subsection. As noted above, two other earth stations are located in Ventura County. According to OneWeb’s calculations, the SES Earth Station covers census blocks with a total population of 81, and when applying the percentage of the area in the contour, a calculated population of 20 people are 33 See Gridded Population of the World, NASA Socioeconomic Data and Applications Center available at http://sedac.ciesin.columbia.edu/data/collection/gpw-v4/maps/services. Note that due to the low population density in the area surrounding this planned earth station, no data point in the graph even has a population of 1 person. 11

within the contour. 34 The HNS Earth Station contour does not cover any population. 35 Therefore, even in a most conservative estimate, only 319 people could be counted as within the contour of an earth station in the area, far less than the 854-person limit. 3. § 25.136(a)(4)(iii) Based on a search in Google Maps, there are no major event venues, urban mass transit routes, passenger railroads or cruise ship ports within the Santa Paula Earth Station’s PFD contour. The PFD contour was calculated based on the existing terrain profile (illustrated in blue in the figures below) showing overlap with portions of North Ojai Road (i.e., Route 150 or Ojai Santa Paula Road)—which is identified as an Other Principal Arterial by The Federal Highway Administration Office of Planning, Environment, and Realty Executive Geographic Information System map. 36 Nevertheless, UMFUS deployments will not be impacted by the Santa Paula Earth Station because OneWeb will build a berm (illustrated in red in the on the next page) resulting in a PFD contour (illustrated in green in the figures below) that will not overlap with any portion of North Ojai Road (i.e., Route 150 or Ojai Santa Paula Road), thus complying with the requirements of this subsection. 34 See SES Earth Station. 35 HNS Earth Station, Exhibit B at #12. 36 See National Highway System Map, U.S. Department of Transportation, Federal Highway Administration (last visited Mar. 27, 2019), https://hepgis.fhwa.dot.gov/fhwagis/. 12

13

OneWeb plans to build a 3-meter high earth berm around the location of the proposed earth station antennas (roughly centered as depicted by the push pin in the above figures). The berm (illustrated in red in the figure below) would follow the south and west property lines (as shown in thin red lines in the figure below). Should the Commission approve this application, the berm will be constructed and its impact in terms of signal attenuation will be measured at the site before commencing transmissions. 14

Therefore, the Santa Paula Earth Station complies with the requirements of this subsection. 4. § 25.136(a)(4)(iv) The Comsearch Coordination Report in Exhibit B 37 demonstrates that OneWeb completed coordination in compliance with the Commission’s rules. 37 See supra note 11. 15

APPENDIX B: 47 CFR § 25.132 – ANTENNA PATTERNS CERTIFICATION I, Marc Dupuis, Senior Director of Spectrum Affairs for OneWeb, hereby certify that I • reviewed the results of a series of radiation pattern tests for the CPI 3.5 meter antenna performed by the antenna manufacturer on representative equipment in representative configurations, and • found the test results demonstrate that the CPI 3.5 meter antenna meets relevant off-axis gain standards in Section 25.209 of the Commission’s rules, measured in accordance with Section 25.132(b)(1). This certification is dated April 22, 2019 and signed by: /s/ Marc Dupuis Marc Dupuis Senior Director, Spectrum Affairs WorldVu Satellites Limited 1785 Greensboro Station Place Tower 3 McLean, VA 22102 16

APPENDIX C: RADIATION HAZARD REPORT In accordance with OET Bulletin 65, this Radiation Hazard Report measured radiation exposure levels in seven zones for two cases—general population and occupational. The radiation levels calculated for each zone in Section II are derived from the calculations made in Section I. The results in Section III for OneWeb’s 3.5 meter CPI antenna illustrate any radiation hazard that may exist for the general public and/or occupationally will be mitigated by limited access and various protocols to ensure safe exposure levels. I. Defined Variables for OET Bulletin 65 Calculated Variables OET 65 Calculated Variables Value Unit Formula Value Unit Variables D= λ= Aperture 3.5 Meters c/F 0.0104 Meters Wavelength Diameter d= PI = Subreflector 0.406 Meters Total Antenna Input P*p 114 Watts Diameter Power η= A= Aperture 57% Percentage π(D/2)2 9.62113 Meters2 Area of reflector Efficiency a= FCC Designation Ka Band area of π(d/2)2 0.12946 Meters2 sub-reflector F= G= G= 28750 MHz 630965.68 Linear Frequency Antenna Gain 4πηA/λ2 P= Transmitter 114.1 Watts Antenna Gain dB 10log10(G) 58.00 dBi Power Watts p= Rnf = Number of 1 # Rnf = D2/4λ 293.69 Meters Near-Field Region Transmitters Rua = Closest Point to 25 Meters 293.69 >Meters Uncontrolled Area Transition Region >Rnf <Rff Rua = Elevation angle 5 Degrees 704.86 <Meters at closest point 704.86 Meters Rff = Rff = Meters Far-Field Region 0.6D2/λ 61.67 AGL 17

II. Radiation Levels in Each Zone Exposure Limits Met General Radiation Analysis Zone Formula Level Value Occupational Public <1mW/cm2 <5mW/cm2 mW/cm 1 Power Sub-reflector 4PI/a 352.48 2 No No mW/cm 2 Antenna Surface 4PI/A 4.74 2 No Yes mW/cm 3 Main Reflector Ground PI/A 1.19 2 No Yes Snf = mW/cm 4 Near-Field 4η(PI/A) 2.69 2 No Yes Power Density Transition mW/cm 5 Snf*Rnf/Rnf 2.69 2 No Yes Max Power Density Far-Field mW/cm 6 PI*G/4πR2 1.15 2 No Yes Max Power Density mW/cm 7 Off-axis Near Field Snf-20dB 0.03 2 Yes Yes III. Results General Public Analysis. OneWeb’s 3.5 meter CPI antennas will be located in an area clearly marked with Radiation Hazard signage with no access by the general public. Zones 1 through 5 create no concern for the general public as they lie behind this signage where only authorized personnel may enter. Likewise, Zone 6—Far Field—also creates no concern for the general public because it develops 61.67 meters above ground level at a minimum elevation angle of five degrees where the general public cannot access. Accordingly, there is no risk of radiation exposure beyond the acceptable limits. Occupational Analysis. Only around the Power Sub-reflector are any radiation levels exceeded. This measurement is taken at a point between the feed and the sub-reflector. Power to the transmitters will be turned off remotely whenever work needs to be performed in this Zone. Signage will mark the area for Radiation Hazard and access by qualified personnel only, facilitating awareness and safety. Consequently, there is no risk of radiation exposure beyond the acceptable limits. 18


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Document Modified: 2019-04-22 17:44:23
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