TYPE APPROVAL AN D CHARACTERIZATION PROCEDURES ESOG 120 Issue 8 – Rev. 1, May 2021 Antennas and Transmissions Team Antenna and VSAT Type Approval/Characterization ESOG 120 – Issue 8 - Rev. 1 May 2021 Antennas and VSATs Type Approval / Characterization Table of Contents Forward .................................................................................................................................. v 1 Overview of the ESOG modules ...................................................................................... 6 1.1 Volume I: Eutelsat S.A. system management and policies ........................................................ 6 1.2 Volume II: Eutelsat S.A. system operations and procedures ..................................................... 6 2 Introduction ................................................................................................................... 7 2.1 About this document .................................................................................................................. 7 2.2 Disclaimer ................................................................................................................................... 7 2.3 Eutelsat certification .................................................................................................................. 7 2.3.1 Type Approval ........................................................................................................................ 8 2.3.2 Characterization ..................................................................................................................... 9 2.3.3 Type Approval for Eutelsat Broadband Services .................................................................. 10 2.3.4 Type Approval for Eutelsat Interactive Satellite Terminal ................................................... 11 2.4 Future operations ..................................................................................................................... 12 3 Reference documents ................................................................................................... 13 4 Antenna sidelobe pattern and cross polar discrimination (extract of EESS 502 standard M) 14 4.1 Sidelobes .................................................................................................................................. 14 4.2 Tolerance and overshoot policy ............................................................................................... 15 4.3 Cross Polarization Discrimination ............................................................................................. 15 5 Approval process........................................................................................................... 17 5.1 Type Approval process for fix Antennas and VSATs ................................................................. 17 5.2 Type Approval process for auto-pointing antennas ................................................................. 18 5.3 Step-by-step process ................................................................................................................ 19 5.4 Data to be submitted ............................................................................................................... 19 5.5 Engineering support ................................................................................................................. 20 5.6 Design review ........................................................................................................................... 20 5.7 Type Approval and Characterization tests ............................................................................... 20 5.8 Financial charges ...................................................................................................................... 20 5.9 Test facilities ............................................................................................................................. 21 6 Request for Type Approval or Characterization.............................................................. 24 7 Type Approval/Characterization tests ............................................................................ 35 7.1 Antenna range tests ................................................................................................................. 35 7.2 Integrated transceiver VSAT tests ............................................................................................ 36 7.3 Mobile antenna tests ............................................................................................................... 37 7.4 Typical antenna tests for Eutelsat Type Approval or Characterization .................................... 37 7.4.1 C band .................................................................................................................................. 38 7.4.2 Ku band ................................................................................................................................ 40 7.4.3 K-Band (DBS) linear polarization .......................................................................................... 43 7.4.4 Ka Band circular polarization (KASAT) ................................................................................. 45 7.4.5 Ka Band circular polarization (Konnect) ............................................................................... 47 7.4.6 Other tests ............................................................................................................................ 49 7.4.7 Presentation of range test results ........................................................................................ 49 7.5 Maximum EIRP density for different satellite spacing ............................................................. 53 Page i of 140 – ESOG 120 Issue 8 Rev. 1 Antennas and VSATs Type Approval / Characterization 8 Antenna pointing tests for fixed and transportable antennas (not for antennas on the move) ................................................................................................................................... 55 9 G/T measurement ......................................................................................................... 58 9.1 Principle .................................................................................................................................... 58 9.2 Step-by-step procedure............................................................................................................ 60 9.2.1 Transmission of reference carrier ........................................................................................ 60 9.2.2 Measurement of carrier level ............................................................................................... 60 9.2.3 Measurement of noise level ................................................................................................. 60 9.2.4 Evaluation ............................................................................................................................ 60 9.3 Example for spectrum analyzer settings .................................................................................. 61 9.3.1 Measurement of Carrier Level .............................................................................................. 61 9.3.2 Measurement of beacon Level ............................................................................................. 62 9.3.3 Measurement of noise Level ................................................................................................ 63 10 Auto-deploy performance tests procedures .................................................................. 64 10.1 Auto-deploy tests over the satellite ......................................................................................... 64 10.2 Location of the tests ................................................................................................................. 64 10.3 On site design review ............................................................................................................... 64 10.4 Step-by-step procedures .......................................................................................................... 65 10.5 Ancillary Tests and Verifications .............................................................................................. 69 10.6 Pointing Repeatability .............................................................................................................. 70 10.7 Backlash .................................................................................................................................... 70 10.8 Rain Fade .................................................................................................................................. 70 10.9 Auto-deploy Operations ........................................................................................................... 70 11 Windload tests procedures ........................................................................................... 77 11.1 Introduction.............................................................................................................................. 77 11.2 Antenna preparation and mounting ........................................................................................ 77 11.2.1 Antenna preparation ....................................................................................................... 78 11.2.2 Pre-certification check list ................................................................................................ 79 11.2.3 Wind load certification procedure with laser .................................................................. 79 11.2.4 Test equipment ................................................................................................................ 80 11.2.5 Axial load certification ..................................................................................................... 82 11.2.6 Pitch load certification ..................................................................................................... 82 11.2.7 Yaw load certification ...................................................................................................... 83 11.2.8 Certification check list ...................................................................................................... 84 11.3 Laser pointing diagram ............................................................................................................. 90 12 Polarization skew of the Eutelsat satellites, circular, linear or dual polarization ............. 91 12.1 General ..................................................................................................................................... 91 12.2 Values of the skew of the Eutelsat SA satellites ....................................................................... 91 12.3 Table of Eutelsat SA satellites .................................................................................................. 92 13 ESV Type Approval/Characterization process ................................................................. 94 13.1 General ..................................................................................................................................... 94 13.2 Static tests for ESV terminals ................................................................................................... 94 13.3 Number of ESV systems ........................................................................................................... 94 13.4 Test set up ................................................................................................................................ 95 13.5 Test configurations ................................................................................................................... 95 13.6 Dynamic Tests ........................................................................................................................ 101 13.7 Test method and configurations ............................................................................................ 102 Page ii of 140 – ESOG 120 Issue 8 Rev. 1 Antennas and VSATs Type Approval / Characterization 13.8 Tests of the main polarization pointing accuracy .................................................................. 103 13.8.1 References ..................................................................................................................... 103 13.8.2 Computation procedures ............................................................................................... 103 13.8.3 Tests of the cross-polarization adjustment accuracy (linear polarization only) ............ 104 13.9 Additional verifications and requirements ............................................................................ 105 13.9.1 ESV antenna inspections ................................................................................................ 105 13.9.2 TX mute tests ................................................................................................................. 105 13.9.3 Look-up tables for the Eutelsat polarization skew (linear polarization only) ................ 106 13.9.4 Spectral regrowth tests .................................................................................................. 107 13.9.5 Factory tour ................................................................................................................... 107 13.9.6 ESV Terminals Questionnaire ......................................................................................... 109 14 Low profile antennas Type Approval/Characterization process .................................... 113 14.1 General ................................................................................................................................... 113 14.2 Static tests for AES and VMES terminals ................................................................................ 113 14.3 Number of AES or VMES systems ........................................................................................... 113 14.4 Cases study ............................................................................................................................. 114 14.5 General tests conditions......................................................................................................... 114 14.6 Tests on USA ........................................................................................................................... 114 14.6.1 USA tests without radome ............................................................................................. 115 14.6.2 Low profile antennas without radome .......................................................................... 115 14.7 Test configurations with radome ........................................................................................... 116 14.8 Qualification of the radome only ........................................................................................... 120 14.9 Dynamic tests ......................................................................................................................... 121 14.10 Test method and configurations ........................................................................................ 122 14.11 Test of the co-polar pointing error .................................................................................... 123 14.11.1 Definitions ...................................................................................................................... 123 14.11.2 Computation procedures ............................................................................................... 123 14.12 Polarization tracking error (linear polarization only) ......................................................... 125 14.13 Beam squint (circular polarization only) ............................................................................ 125 14.14 Additional verification requirements ................................................................................. 125 14.14.1 Antenna inspections ...................................................................................................... 125 14.14.2 TX mute tests ................................................................................................................. 126 14.14.3 Look-up tables for the Eutelsat polarization skew (linear polarization only) ................ 126 14.14.4 Spectrum re-growth tests .............................................................................................. 128 14.14.5 Factory tour ................................................................................................................... 128 15 Eutelsat certification and labels ................................................................................... 129 15.1 Trademarks and condition of use ........................................................................................... 130 15.1.1 Contents ......................................................................................................................... 130 15.2 Introduction............................................................................................................................ 130 15.3 Terms and conditions of use .................................................................................................. 131 15.4 “Type Approved” label ........................................................................................................... 132 15.4.1 Documentation .............................................................................................................. 132 15.4.2 Description of label ........................................................................................................ 132 15.5 “Characterized” label ............................................................................................................. 133 15.5.1 Documentation .............................................................................................................. 133 15.5.2 Description of label ........................................................................................................ 133 15.6 Labels for broadband services ................................................................................................ 134 15.6.1 Documentation .............................................................................................................. 134 15.6.2 Description of Labels ...................................................................................................... 134 Page iii of 140 – ESOG 120 Issue 8 Rev. 1 Antennas and VSATs Type Approval / Characterization 15.7 Labels for IST services ............................................................................................................. 134 15.7.1 Documentation .............................................................................................................. 134 15.7.2 Description of Label ....................................................................................................... 135 15.8 Reproduction colors and formats .......................................................................................... 135 15.8.1 Color references ............................................................................................................. 136 15.8.2 Format reference, for all labels...................................................................................... 138 15.9 Contact details ........................................................................................................................ 139 Page iv of 140 – ESOG 120 Issue 8 Rev. 1 Antennas and VSATs Type Approval / Characterization Forward The Eutelsat S.A. Systems Operations Guide (ESOG) is published to provide all Eutelsat S.A. space segment users with the information that is necessary for the successful operation of earth stations within the Eutelsat S.A. satellite system. The ESOG consists of 2 Volumes. They contain, in modular form, all the necessary details considered important for the operations of earth stations. Volume I focuses on Earth Station and Antenna Approvals, System Management and Policy aspects. Volume II describes the initial line-up of satellite links between earth stations and the commissioning of earth stations for Eutelsat S.A. services. The modules contained in this Volume relate to the services provided via Eutelsat S.A. satellites. The ESOG can be obtained either by requesting a printed version from Eutelsat S.A. or by downloading it in PDF from the Eutelsat S.A. Website: http://www.eutelsat.com/en/support/earth-stations/esog.html Page v of 140 – ESOG 120 Issue 8 Rev. 1 Antennas and VSATs Type Approval / Characterization 1 Overview of the ESOG modules 1.1 Volume I: Eutelsat S.A. system management and policies Earth Station Standards Module 100 Earth Station Access and Approval Procedures Module 110 Earth Station Type Approval Module 120 Earth Station Verification Assistance (ESVA) Module 130 Operational Management, Control, Monitoring & Coordination Module 140 VSATs’ ODUs Type Approval Module 160 1.2 Volume II: Eutelsat S.A. system operations and procedures Digital Services Handbook Module 210 VSAT Handbook Module 230 SKYPLEX Handbook Module 240 DVB Television Handbook (being prepared) Module 250 Manual and auto-deploy terminals Handbook Module 260 Page 6 of 140 – ESOG 120 Issue 8 Rev. 1 Antennas and VSATs Type Approval / Characterization 2 Introduction 2.1 About this document This document describes in detail the process to verify the compliance of earth stations with the Eutelsat specification EESS 502 standard M and of interactive satellite terminals (IST) with the Eutelsat specification EESS 503. It is valid for all type of earth stations: ▪ Fixed Uplink dishes with diameters up to 2.4 m in Ku band and 1.8m in Ka band ▪ VSAT terminal ▪ IST interactive satellite terminal (also known as SmartLNB) ▪ Transportable uplink stations e.g. for SNG ▪ Mobile uplink terminals for the use on maritime, land mobile and aeronautical applications Independent from the type of earth stations the Eutelsat approval process consists in principle of four different tests: ▪ Range test of three production samples ▪ Auto-deploy performance test ▪ Pointing accuracy test (also for manual pointing antennas) ▪ Wind stability test The details of the test are outlined in the following document. Antennas which are neither Type Approved nor Characterized by Eutelsat are subject to the provision of measured RF sidelobe patterns and/or to individual testing. 2.2 Disclaimer The Eutelsat Type approval confirms conformity of the satellite terminal with the Eutelsat standard Type M stated in the document EESS 502 or with the Eutelsat standard stated in the document EESS 503, it explicitly does not indicate conformity with any other standards, such as ITU standards, ETSI standards. 2.3 Eutelsat certification In the case of a Type Approval or a Characterization certification, based on the successful completion, demonstration, technical verification and certification of all the mandatory electrical performance characteristics, Eutelsat S.A. will issue a Type Approval or a Characterization certificate to the applicant. Page 7 of 140 – ESOG 120 Issue 8 Rev. 1 Antennas and VSATs Type Approval / Characterization A unique certificate will be assigned by Eutelsat S.A. This certificate will also contain a list of each piece of equipment (or equipment configuration) that was tested. In case of a change in the equipment and equipment configuration, the certificate will be not valid. The list of type approved or characterized antennas and VSATs and their relevant configurations is published and regularly updated on the Eutelsat S.A. Web site. 2.3.1 Type Approval The Type Approval of earth station antennas depends on the ability to manufacture the antenna system with repeated precision. Type Approval should be obtained if the production of more than 10 units of the same type of antenna configuration is intended. For lower numbers Eutelsat S.A. Characterization may be preferable. The Type approval process consist of three different tests: ▪ Static antenna range test of three production samples ▪ Pointing accuracy test ▪ Wind stability test (if applicable) Antenna/VSAT Type Approval is based on the following procedures and criteria: ▪ The present document ESOG 120 ▪ EESS 502: https://www.eutelsat.com/files/PDF/support/EESS-502.pdf Any modification on an already Type approved antenna system that may affect the geometry of the reflector, feed boom and feed or the combination of all three requires a new Type approval. Any modification effecting the antenna pointing, be it manual or motorized requires a new Eutelsat Type approval. In coordination with the manufacturer Eutelsat will decide if all tests are necessary or only selected tests. This allows Eutelsat S.A. to offer a Type Approval procedure for two configurations, namely: • The antenna system including the feed • The complete earth station (e.g. VSAT). Eutelsat S.A. Operators will then be able to introduce type approved antenna/earth station units, without the need for full verification testing or certification of the performance characteristics by simply notifying Eutelsat S.A. as foreseen within the application form. Eutelsat Type Approval is seen as the highest degree of antenna compliance. Normally three units of the same model selected at random by Eutelsat in the production need to be made available by the Manufacturer for testing. In case of tests performed on prototypes or pre- production units, the results shall be confirmed later on at least one production unit. Page 8 of 140 – ESOG 120 Issue 8 Rev. 1