SIST EN 303 978 V2.2.1:2025
(Main)Satellite Earth Stations and Systems (SES) - Earth Stations on Mobile Platforms (ESOMP) communicating with satellites in geostationary orbit, operating in the 27,5 GHz to 30,0 GHz and 17,3 GHz to 20,2 GHz frequency bands - Harmonised Standard for access to radio spectrum
Satellite Earth Stations and Systems (SES) - Earth Stations on Mobile Platforms (ESOMP) communicating with satellites in geostationary orbit, operating in the 27,5 GHz to 30,0 GHz and 17,3 GHz to 20,2 GHz frequency bands - Harmonised Standard for access to radio spectrum
The present document specifies technical characteristics and methods of measurements for Earth Stations on Mobile
Platforms (ESOMP) equipment with the following characteristics:
• The ESOMP is designed for both mobile and stationary operation.
• The ESOMP operates on various mobile platforms such as trains, maritime vessels, aircraft and other vehicles.
• The ESOMP is controlled and monitored by a Network Control Facility (NCF). This function may be
performed centrally (e.g. for a network of ESOMPs with a central hub) or it could be performed within the
ESOMP for autonomous control. The NCF is outside the scope of the present document.
• The ESOMP transmit and receive frequencies are shown in table 1.
NOTE: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU [i.11] is given in annex A.
Satelitske zemeljske postaje in sistemi (SES) - Zemeljske postaje na mobilnih platformah (ESOMP), ki komunicirajo s sateliti v geostacionarni orbiti in delujejo v frekvenčnih pasovih od 27,5 GHz do 30,0 GHz in od 17,3 GHz do 20,2 GHz - Harmonizirani standard za dostop do radijskega spektra
Ta dokument določa tehnične lastnosti in merilne metode za opremo zemeljskih postaj na mobilnih platformah (ESOMP) z naslednjimi značilnostmi:
• Zemeljska postaja na mobilni platformi je izdelana za mobilno in stacionarno delovanje.
• Zemeljska postaja na mobilni platformi deluje na različnih mobilnih platformah, npr. na vlakih, morskih plovilih, letalih in drugih vozilih.
• Zemeljska postaja na mobilni platformi se krmili in spremlja z napravo za krmiljenje omrežja (NCF). Ta funkcija se lahko izvaja centralno (npr. za omrežje zemeljskih postaj na mobilni platformi s centralnim vozliščem) ali pa se lahko izvaja v sami zemeljski postaji na mobilni platformi za avtonomno krmiljenje. Naprava za krmiljenje omrežja ne spada na področje uporabe tega dokumenta.
• Frekvence oddajanja in sprejemanja zemeljske postaje na mobilni platformi so prikazane v preglednici 1.
OPOMBA: Razmerje med tem dokumentom in bistvenimi zahtevami iz člena 3.2 Direktive 2014/53/EU [i.11] je podano v dodatku A.
General Information
- Status
- Published
- Public Enquiry End Date
- 30-Nov-2024
- Publication Date
- 08-Jan-2025
- Technical Committee
- MOC - Mobile Communications
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 06-Jan-2025
- Due Date
- 13-Mar-2025
- Completion Date
- 09-Jan-2025
Overview
SIST EN 303 978 V2.2.1:2025 is a harmonised European standard (identical to ETSI EN 303 978 V2.2.1) that defines technical characteristics and measurement methods for Satellite Earth Stations on Mobile Platforms (ESOMP) communicating with satellites in geostationary orbit (GSO). It covers ESOMP equipment that can operate both mobile and stationary, on platforms such as trains, maritime vessels, aircraft and other vehicles, and which operate in the 27.5 GHz–30.0 GHz and 17.3 GHz–20.2 GHz frequency bands. The standard is published for access to radio spectrum and includes the relationship to essential requirements of Article 3.2 of Directive 2014/53/EU (see annex A).
Key topics and technical requirements
The document focuses on practical, testable requirements for ESOMP devices. Key technical topics include:
- Frequency bands and channelization - defined transmit/receive allocations for ESOMP in the specified GSO bands (see table 1 of the standard).
- Conformance testing and measurement methods - standardized procedures for verifying compliance with emission and performance limits.
- Spurious and on‑axis/off‑axis emissions - limits and test methods to control interference with adjacent services.
- EIRP and emission density - total and off‑axis EIRP density specifications for single units and networks of ESOMPs.
- Uplink Power Control (UPC) - requirements to manage transmitted power and reduce interference into the satellite or neighbouring services.
- Antenna performance - pointing accuracy, polarization alignment, on‑axis cross‑polarization isolation and pointing‑error detection.
- Control & Monitoring Functions (CMFs) - states, processor and transmit monitoring, control channel/response channel behavior, network control commands and initial burst transmission rules.
- Cessation of emissions and fault handling - modes and conditions under which the ESOMP must stop transmissions.
- Identification and presentation for testing - device identification and test configuration rules.
Practical applications and who uses this standard
SIST EN 303 978 is intended for professionals involved in the design, manufacture, testing, certification and operation of mobile satellite terminals and networks:
- Equipment manufacturers - to design ESOMP products that meet harmonised spectrum access requirements.
- Test laboratories and conformity assessors - to perform mandated conformance tests and produce test reports.
- Network operators and integrators - to ensure ESOMPs operated on trains, ships, aircraft or fleets meet operational and interference rules.
- Regulators and certification bodies - to assess compliance with radio spectrum access rules and Directive 2014/53/EU requirements.
- System engineers - for guidance on antenna pointing, power control and networked ESOMP behavior.
Related standards
- ETSI EN 303 978 V2.2.1 (2024-12) - the originating ETSI deliverable.
- Directive 2014/53/EU (Radio Equipment Directive) - essential requirements referenced in annex A.
Keywords: satellite earth stations, ESOMP, geostationary orbit, 27.5–30 GHz, 17.3–20.2 GHz, harmonised standard, radio spectrum access, EIRP, uplink power control, antenna pointing, conformance tests.
ETSI EN 303 978 V2.2.0 (2024-09) - Satellite Earth Stations and Systems (SES); Earth Stations on Mobile Platforms (ESOMP) communicating with satellites in geostationary orbit, operating in the 27,5 GHz to 30,0 GHz and 17,3 GHz to 20,2 GHz frequency bands; Harmonised Standard for access to radio spectrum
ETSI EN 303 978 V2.2.1 (2024-12) - Satellite Earth Stations and Systems (SES); Earth Stations on Mobile Platforms (ESOMP) communicating with satellites in geostationary orbit, operating in the 27,5 GHz to 30,0 GHz and 17,3 GHz to 20,2 GHz frequency bands; Harmonised Standard for access to radio spectrum
Frequently Asked Questions
SIST EN 303 978 V2.2.1:2025 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Satellite Earth Stations and Systems (SES) - Earth Stations on Mobile Platforms (ESOMP) communicating with satellites in geostationary orbit, operating in the 27,5 GHz to 30,0 GHz and 17,3 GHz to 20,2 GHz frequency bands - Harmonised Standard for access to radio spectrum". This standard covers: The present document specifies technical characteristics and methods of measurements for Earth Stations on Mobile Platforms (ESOMP) equipment with the following characteristics: • The ESOMP is designed for both mobile and stationary operation. • The ESOMP operates on various mobile platforms such as trains, maritime vessels, aircraft and other vehicles. • The ESOMP is controlled and monitored by a Network Control Facility (NCF). This function may be performed centrally (e.g. for a network of ESOMPs with a central hub) or it could be performed within the ESOMP for autonomous control. The NCF is outside the scope of the present document. • The ESOMP transmit and receive frequencies are shown in table 1. NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU [i.11] is given in annex A.
The present document specifies technical characteristics and methods of measurements for Earth Stations on Mobile Platforms (ESOMP) equipment with the following characteristics: • The ESOMP is designed for both mobile and stationary operation. • The ESOMP operates on various mobile platforms such as trains, maritime vessels, aircraft and other vehicles. • The ESOMP is controlled and monitored by a Network Control Facility (NCF). This function may be performed centrally (e.g. for a network of ESOMPs with a central hub) or it could be performed within the ESOMP for autonomous control. The NCF is outside the scope of the present document. • The ESOMP transmit and receive frequencies are shown in table 1. NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU [i.11] is given in annex A.
SIST EN 303 978 V2.2.1:2025 is classified under the following ICS (International Classification for Standards) categories: 33.060.30 - Radio relay and fixed satellite communications systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 303 978 V2.2.1:2025 is associated with the following European legislation: EU Directives/Regulations: 2014/53/EU. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase SIST EN 303 978 V2.2.1:2025 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
Draft ETSI EN 303 978 V2.2.0 (2024-09)
HARMONISED EUROPEAN STANDARD
Satellite Earth Stations and Systems (SES);
Earth Stations on Mobile Platforms (ESOMP)
communicating with satellites in geostationary orbit,
operating in the 27,5 GHz to 30,0 GHz and
17,3 GHz to 20,2 GHz frequency bands;
Harmonised Standard for access to radio spectrum
2 Draft ETSI EN 303 978 V2.2.0 (2024-09)
Reference
REN/SES-00468
Keywords
antenna, earth station, GSO, mobile, regulation,
satellite
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from the
ETSI Search & Browse Standards application.
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format on ETSI deliver.
Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.
Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2024.
All rights reserved.
ETSI
3 Draft ETSI EN 303 978 V2.2.0 (2024-09)
Contents
Intellectual Property Rights . 8
Foreword . 8
Modal verbs terminology . 9
Introduction . 9
1 Scope . 11
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 12
3 Definitions of terms, symbols and abbreviations . 13
3.1 Terms . 13
3.2 Symbols . 14
3.3 Abbreviations . 15
4 Technical requirements specifications . 16
4.1 General . 16
4.1.1 Environmental profile . 16
4.1.2 Operational configurations . 16
4.1.3 Determination of geographical location of the ESOMP . 16
4.1.4 EIRP for networks of ESOMPs . 16
Aggregate
4.1.5 Presentation of equipment for testing purposes . 16
4.1.6 Choice of model for testing . 17
4.2 Conformance requirements . 17
4.2.1 Off-axis spurious radiation . 17
4.2.1.1 Justification . 17
4.2.1.2 Specification. 17
4.2.1.3 Conformance tests . 18
4.2.2 On-axis spurious radiation . 18
4.2.2.1 Justification . 18
4.2.2.2 Specification. 18
4.2.2.2.1 "Carrier-on" radio state . 18
4.2.2.2.2 "Carrier-off" and "Emissions disabled" radio states . 19
4.2.2.3 Conformance tests . 19
4.2.3 Off-axis EIRP emission density within the band . 19
4.2.3.0 General . 19
4.2.3.1 Justification . 19
4.2.3.2 Total EIRP density specification . 19
4.2.3.3 Void. 20
4.2.3.4 Void. 20
4.2.3.5 Burst Transmission Specification . 20
4.2.3.6 Off-axis Geometry Specification . 20
4.2.3.7 Conformance tests . 21
4.2.4 Uplink Power Control Specification . 21
4.2.5 Carrier suppression . 21
4.2.5.1 Justification . 21
4.2.5.2 Specification. 21
4.2.5.3 Conformance tests . 21
4.2.6 Antenna pointing and polarization alignment . 21
4.2.6.1 Antenna pointing accuracy . 21
4.2.6.1.1 Justification . 21
4.2.6.1.2 Pointing accuracy specification . 21
4.2.6.1.3 On-axis cross polarization isolation specification . 22
4.2.6.1.4 Conformance tests . 22
4.2.6.2 Antenna Pointing Error Detection . 22
4.2.6.2.0 General . 22
ETSI
4 Draft ETSI EN 303 978 V2.2.0 (2024-09)
4.2.6.2.1 Pointing error detection specification . 22
4.2.6.2.2 Polarization angle alignment specification . 22
4.2.6.2.3 Conformance tests . 23
4.2.7 Cessation of emissions . 23
4.2.7.1 Justification . 23
4.2.7.2 Specification. 23
4.2.7.2.1 Specification 1: Mode of cessation of emissions . 23
4.2.7.2.2 Specification 2: Conditions under which the ESOMP shall cease emissions . 23
4.2.7.2.3 Specification 3: Cessation of emissions . 24
4.2.7.2.4 Specification 4: Fault conditions . 24
4.2.7.3 Conformance tests . 24
4.2.8 Identification of the ESOMP . 24
4.2.8.1 Justification . 24
4.2.8.2 Specification. 24
4.2.8.3 Conformance tests . 24
4.2.9 Control and Monitoring Functions (CMFs) . 25
4.2.9.1 ESOMP States . 25
4.2.9.1.0 General . 25
4.2.9.1.1 CMF state diagram . 26
4.2.9.2 Processor monitoring . 27
4.2.9.2.1 Justification . 27
4.2.9.2.2 Specification . 27
4.2.9.2.3 Conformance tests . 28
4.2.9.3 Transmit subsystem monitoring . 28
4.2.9.3.1 Justification . 28
4.2.9.3.2 Specification . 28
4.2.9.3.3 Conformance tests . 28
4.2.9.4 Power-on/Reset . 28
4.2.9.4.1 Justification . 28
4.2.9.4.2 Specification . 28
4.2.9.4.3 Conformance tests . 28
4.2.9.5 Control Channel (CC) and Response Channel (RC) . 28
4.2.9.5.1 Justification . 28
4.2.9.5.2 Specification . 29
4.2.9.5.3 Conformance tests . 29
4.2.9.6 Network control commands . 29
4.2.9.6.1 Justification . 29
4.2.9.6.2 Specification . 29
4.2.9.6.3 Conformance tests . 30
4.2.9.7 Initial burst transmission . 30
4.2.9.7.1 Justification . 30
4.2.9.7.2 Specification . 30
4.2.9.7.3 Conformance tests . 30
4.2.9.8 Inhibition of transmissions . 30
4.2.9.8.1 Justification . 30
4.2.9.8.2 Specification . 31
4.2.9.8.3 Conformance tests . 31
4.2.10 Receive antenna off-axis gain pattern . 31
4.2.10.1 Justification . 31
4.2.10.2 Specification. 31
4.2.10.3 Conformance tests . 31
4.2.11 Blocking performance . 31
4.2.11.1 Justification . 31
4.2.11.2 Specification. 32
4.2.11.3 Conformance tests . 32
4.2.12 Adjacent Signal Selectivity . 32
4.2.12.1 Justification . 32
4.2.12.2 Specification. 32
4.2.12.3 Conformance tests . 32
5 Testing for compliance with technical requirements . 33
5.1 Environmental conditions for testing . 33
ETSI
5 Draft ETSI EN 303 978 V2.2.0 (2024-09)
5.2 Radio test suites . 33
6 Test methods for all aspects of the ESOMP . 33
6.1 General . 33
6.1.0 Introduction. 33
6.1.1 Uplink power control . 33
6.1.1.1 General . 33
6.1.1.2 Test method . 34
6.1.2 Measuring receiver . 34
6.2 Off-axis spurious radiation . 35
6.2.0 Introduction. 35
6.2.1 Test method . 35
6.2.1.0 Void. 35
6.2.1.1 General . 35
6.2.1.2 Multi-carrier operation . 35
6.2.2 Measurements up to 1 000 MHz . 36
6.2.2.1 Test site . 36
6.2.2.2 Measuring receivers . 36
6.2.2.3 Procedure . 36
6.2.3 Measurements above 1 000 MHz . 36
6.2.3.0 General . 36
6.2.3.1 Identification of the significant frequencies of spurious radiation . 37
6.2.3.1.1 Test site. 37
6.2.3.1.2 Procedure . 37
6.2.3.2 Measurement of radiated power levels of identified spurious radiation . 37
6.2.3.2.1 Test site. 37
6.2.3.2.2 Procedure . 37
6.2.3.3 Measurement of conducted spurious radiation at the antenna flange . 38
6.2.3.3.1 Test site. 38
6.2.3.3.2 Procedure . 39
6.3 On-axis spurious radiation . 39
6.3.1 Test method . 39
6.3.1.0 General . 39
6.3.1.1 Test site . 39
6.3.1.2 Method of measurement . 39
6.3.1.2.1 General . 39
6.3.1.2.2 Method of measurement at the antenna flange . 39
6.3.1.2.3 Method of measurement for an EUT with antenna . 40
6.4 Off-axis EIRP emission density within the band . 41
6.4.1 Test method . 41
6.4.1.0 Introduction . 41
6.4.1.1 Transmit output power density . 42
6.4.1.1.1 General . 42
6.4.1.1.2 Test site. 42
6.4.1.1.3 Method of measurement . 42
6.4.1.2 Antenna transmit gain . 43
6.4.1.2.1 General . 43
6.4.1.2.2 Test site. 43
6.4.1.2.3 Method of measurement . 43
6.4.1.3 Antenna transmit radiation patterns . 44
6.4.1.3.1 General . 44
6.4.1.3.2 Test site. 44
6.4.1.3.3 Test arrangement . 45
6.4.1.3.4 Co-polar radiation pattern - azimuth . 45
6.4.1.3.5 Co-polar radiation pattern - elevation . 45
6.4.1.3.6 Cross-polar radiation pattern - azimuth . 46
6.4.1.3.7 Cross-polar radiation pattern - elevation . 46
6.4.2 Computation of results . 47
6.5 Carrier suppression . 47
6.5.1 Test method . 47
6.6 Antenna pointing . 47
6.6.1 General . 47
ETSI
6 Draft ETSI EN 303 978 V2.2.0 (2024-09)
6.6.2 Test method . 48
6.7 Polarization angle alignment capability . 48
6.7.1 General . 48
6.7.2 Test site . 48
6.7.3 Test method . 48
6.8 Cessation of emissions of the ESOMP . 49
6.8.0 General . 49
6.8.1 Test Method . 49
6.8.1.1 Required documentation . 49
6.8.1.2 Cessation of emissions from the "Transmission enabled" state . 49
6.8.1.3 Cessation of emission from the "Transmission disabled" state . 49
6.8.1.4 Cessation of emission from the "Initial Phase" state . 50
6.8.1.4.1 EUTs transmitting initial bursts . 50
6.8.1.4.2 EUTs not transmitting initial bursts . 50
6.8.1.5 "Single action" means of cessation of emissions. 51
6.8.1.6 Fault conditions . 51
6.9 Identification of ESOMP . 52
6.9.1 Test arrangement . 52
6.9.2 Test method . 52
6.10 Control and monitoring functions . 52
6.10.0 General . 52
6.10.1 Test arrangement . 52
6.10.2 Processor monitoring- Test method . 52
6.10.3 Transmit subsystem monitoring-Test method . 53
6.10.4 Power-on/Reset-Test method . 53
6.10.5 Control Channel (CC) and Response Channel (RC) - Test method . 53
6.10.6 Network Control commands-Test method . 54
6.10.7 Initial burst transmission-Test method . 55
6.10.8 Inhibition of transmission-Test method . 55
6.11 Receive antenna off-axis gain pattern . 56
6.11.1 Test method . 56
6.11.1.1 Test site . 56
6.11.1.2 Method of measurement . 56
6.11.1.3 Computation . 57
6.12 Blocking performance . 57
6.12.1 Test method . 57
6.13 Adjacent Signal Selectivity . 58
6.13.1 Test method . 58
6.14 Test for determination of geographical location of the ESOMP . 58
6.14.1 Test arrangement . 58
6.14.2 Test method . 58
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 59
Annex B: Void . 61
Annex C (normative): Radiated measurement . 62
C.1 Test sites and general arrangements for measurements involving the use of radiated fields . 62
C.1.0 General . 62
C.1.1 Anechoic Chamber . 62
C.1.2 Anechoic Chamber with a conductive ground plane . 63
C.1.3 Open Area Test Site (OATS) . 64
C.1.4 Minimum requirements for test sites for measurements above 18 GHz . 65
C.1.5 Test antenna . 65
C.1.6 Substitution antenna . 66
C.1.7 Measuring antenna . 66
C.2 Guidance on the use of radiation test sites . 66
C.2.0 General . 66
C.2.1 Verification of the test site . 66
C.2.2 Preparation of the EUT . 66
ETSI
7 Draft ETSI EN 303 978 V2.2.0 (2024-09)
C.2.3 Power supplies to the EUT . 66
C.2.4 Range length . 67
C.2.5 Site preparation . 67
C.3 Coupling of signals . 68
C.3.1 General . 68
C.4 Standard test methods . 68
C.4.0 General . 68
C.4.1 Calibrated setup . 68
C.4.2 Substitution method . 69
Annex D (normative): Conducted measurements . 70
Annex E (informative): General Requirements for RF Cables . 71
Annex F (informative): RF Waveguides . 72
Annex G (informative): Applicability of parameters given in ETSI EG 203 336 . 74
Annex H (informative): Maximum measurement uncertainty . 76
Annex I (informative): Bibliography . 77
Annex J (informative): Change history . 78
History . 79
ETSI
8 Draft ETSI EN 303 978 V2.2.0 (2024-09)
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...
HARMONISED EUROPEAN STANDARD
Satellite Earth Stations and Systems (SES);
Earth Stations on Mobile Platforms (ESOMP)
communicating with satellites in geostationary orbit,
operating in the 27,5 GHz to 30,0 GHz and
17,3 GHz to 20,2 GHz frequency bands;
Harmonised Standard for access to radio spectrum
2 ETSI EN 303 978 V2.2.1 (2024-12)
Reference
REN/SES-00468
Keywords
antenna, earth station, GSO, mobile, regulation,
satellite
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from the
ETSI Search & Browse Standards application.
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format on ETSI deliver repository.
Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.
Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2024.
All rights reserved.
ETSI
3 ETSI EN 303 978 V2.2.1 (2024-12)
Contents
Intellectual Property Rights . 8
Foreword . 8
Modal verbs terminology . 9
Introduction . 9
1 Scope . 11
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 12
3 Definitions of terms, symbols and abbreviations . 13
3.1 Terms . 13
3.2 Symbols . 14
3.3 Abbreviations . 15
4 Technical requirements specifications . 16
4.1 General . 16
4.1.1 Environmental profile . 16
4.1.2 Operational configurations . 16
4.1.3 Determination of geographical location of the ESOMP . 16
4.1.4 EIRP for networks of ESOMPs . 16
Aggregate
4.1.5 Presentation of equipment for testing purposes . 16
4.1.6 Choice of model for testing . 17
4.2 Conformance requirements . 17
4.2.1 Off-axis spurious radiation . 17
4.2.1.1 Justification . 17
4.2.1.2 Specification. 17
4.2.1.3 Conformance tests . 18
4.2.2 On-axis spurious radiation . 18
4.2.2.1 Justification . 18
4.2.2.2 Specification. 18
4.2.2.2.1 "Carrier-on" radio state . 18
4.2.2.2.2 "Carrier-off" and "Emissions disabled" radio states . 19
4.2.2.3 Conformance tests . 19
4.2.3 Off-axis EIRP emission density within the band . 19
4.2.3.0 General . 19
4.2.3.1 Justification . 19
4.2.3.2 Total EIRP density specification . 19
4.2.3.3 Void. 20
4.2.3.4 Void. 20
4.2.3.5 Burst Transmission Specification . 20
4.2.3.6 Off-axis Geometry Specification . 20
4.2.3.7 Conformance tests . 21
4.2.4 Uplink Power Control Specification . 21
4.2.5 Carrier suppression . 21
4.2.5.1 Justification . 21
4.2.5.2 Specification. 21
4.2.5.3 Conformance tests . 21
4.2.6 Antenna pointing and polarization alignment . 21
4.2.6.1 Antenna pointing accuracy . 21
4.2.6.1.1 Justification . 21
4.2.6.1.2 Pointing accuracy specification . 21
4.2.6.1.3 On-axis cross polarization isolation specification . 22
4.2.6.1.4 Conformance tests . 22
4.2.6.2 Antenna Pointing Error Detection . 22
4.2.6.2.0 General . 22
4.2.6.2.1 Pointing error detection specification . 22
ETSI
4 ETSI EN 303 978 V2.2.1 (2024-12)
4.2.6.2.2 Polarization angle alignment specification . 22
4.2.6.2.3 Conformance tests . 23
4.2.7 Cessation of emissions . 23
4.2.7.1 Justification . 23
4.2.7.2 Specification. 23
4.2.7.2.1 Specification 1: Mode of cessation of emissions . 23
4.2.7.2.2 Specification 2: Conditions under which the ESOMP shall cease emissions . 23
4.2.7.2.3 Specification 3: Cessation of emissions . 24
4.2.7.2.4 Specification 4: Fault conditions . 24
4.2.7.3 Conformance tests . 24
4.2.8 Identification of the ESOMP . 24
4.2.8.1 Justification . 24
4.2.8.2 Specification. 24
4.2.8.3 Conformance tests . 24
4.2.9 Control and Monitoring Functions (CMFs) . 25
4.2.9.1 ESOMP States . 25
4.2.9.1.0 General . 25
4.2.9.1.1 CMF state diagram . 26
4.2.9.2 Processor monitoring . 27
4.2.9.2.1 Justification . 27
4.2.9.2.2 Specification . 27
4.2.9.2.3 Conformance tests . 28
4.2.9.3 Transmit subsystem monitoring . 28
4.2.9.3.1 Justification . 28
4.2.9.3.2 Specification . 28
4.2.9.3.3 Conformance tests . 28
4.2.9.4 Power-on/Reset . 28
4.2.9.4.1 Justification . 28
4.2.9.4.2 Specification . 28
4.2.9.4.3 Conformance tests . 28
4.2.9.5 Control Channel (CC) and Response Channel (RC) . 28
4.2.9.5.1 Justification . 28
4.2.9.5.2 Specification . 29
4.2.9.5.3 Conformance tests . 29
4.2.9.6 Network control commands . 29
4.2.9.6.1 Justification . 29
4.2.9.6.2 Specification . 29
4.2.9.6.3 Conformance tests . 30
4.2.9.7 Initial burst transmission . 30
4.2.9.7.1 Justification . 30
4.2.9.7.2 Specification . 30
4.2.9.7.3 Conformance tests . 30
4.2.9.8 Inhibition of transmissions . 30
4.2.9.8.1 Justification . 30
4.2.9.8.2 Specification . 31
4.2.9.8.3 Conformance tests . 31
4.2.10 Receive antenna off-axis gain pattern . 31
4.2.10.1 Justification . 31
4.2.10.2 Specification. 31
4.2.10.3 Conformance tests . 31
4.2.11 Blocking performance . 31
4.2.11.1 Justification . 31
4.2.11.2 Specification. 32
4.2.11.3 Conformance tests . 32
4.2.12 Adjacent Signal Selectivity . 32
4.2.12.1 Justification . 32
4.2.12.2 Specification. 32
4.2.12.3 Conformance tests . 32
5 Testing for compliance with technical requirements . 33
5.1 Environmental conditions for testing . 33
5.2 Radio test suites . 33
ETSI
5 ETSI EN 303 978 V2.2.1 (2024-12)
6 Test methods for all aspects of the ESOMP . 33
6.1 General . 33
6.1.0 Introduction. 33
6.1.1 Uplink power control . 33
6.1.1.1 General . 33
6.1.1.2 Test method . 34
6.1.2 Measuring receiver . 34
6.2 Off-axis spurious radiation . 35
6.2.0 Introduction. 35
6.2.1 Test method . 35
6.2.1.0 Void. 35
6.2.1.1 General . 35
6.2.1.2 Multi-carrier operation . 35
6.2.2 Measurements up to 1 000 MHz . 36
6.2.2.1 Test site . 36
6.2.2.2 Measuring receivers . 36
6.2.2.3 Procedure . 36
6.2.3 Measurements above 1 000 MHz . 36
6.2.3.0 General . 36
6.2.3.1 Identification of the significant frequencies of spurious radiation . 37
6.2.3.1.1 Test site. 37
6.2.3.1.2 Procedure . 37
6.2.3.2 Measurement of radiated power levels of identified spurious radiation . 37
6.2.3.2.1 Test site. 37
6.2.3.2.2 Procedure . 37
6.2.3.3 Measurement of conducted spurious radiation at the antenna flange . 38
6.2.3.3.1 Test site. 38
6.2.3.3.2 Procedure . 39
6.3 On-axis spurious radiation . 39
6.3.1 Test method . 39
6.3.1.0 General . 39
6.3.1.1 Test site . 39
6.3.1.2 Method of measurement . 39
6.3.1.2.1 General . 39
6.3.1.2.2 Method of measurement at the antenna flange . 39
6.3.1.2.3 Method of measurement for an EUT with antenna . 40
6.4 Off-axis EIRP emission density within the band . 41
6.4.1 Test method . 41
6.4.1.0 Introduction . 41
6.4.1.1 Transmit output power density . 42
6.4.1.1.1 General . 42
6.4.1.1.2 Test site. 42
6.4.1.1.3 Method of measurement . 42
6.4.1.2 Antenna transmit gain . 43
6.4.1.2.1 General . 43
6.4.1.2.2 Test site. 43
6.4.1.2.3 Method of measurement . 43
6.4.1.3 Antenna transmit radiation patterns . 44
6.4.1.3.1 General . 44
6.4.1.3.2 Test site. 44
6.4.1.3.3 Test arrangement . 45
6.4.1.3.4 Co-polar radiation pattern - azimuth . 45
6.4.1.3.5 Co-polar radiation pattern - elevation . 45
6.4.1.3.6 Cross-polar radiation pattern - azimuth . 46
6.4.1.3.7 Cross-polar radiation pattern - elevation . 46
6.4.2 Computation of results . 47
6.5 Carrier suppression . 47
6.5.1 Test method . 47
6.6 Antenna pointing . 47
6.6.1 General . 47
6.6.2 Test method . 48
6.7 Polarization angle alignment capability . 48
ETSI
6 ETSI EN 303 978 V2.2.1 (2024-12)
6.7.1 General . 48
6.7.2 Test site . 48
6.7.3 Test method . 48
6.8 Cessation of emissions of the ESOMP . 49
6.8.0 General . 49
6.8.1 Test Method . 49
6.8.1.1 Required documentation . 49
6.8.1.2 Cessation of emissions from the "Transmission enabled" state . 49
6.8.1.3 Cessation of emission from the "Transmission disabled" state . 49
6.8.1.4 Cessation of emission from the "Initial Phase" state . 50
6.8.1.4.1 EUTs transmitting initial bursts . 50
6.8.1.4.2 EUTs not transmitting initial bursts . 50
6.8.1.5 "Single action" means of cessation of emissions. 51
6.8.1.6 Fault conditions . 51
6.9 Identification of ESOMP . 52
6.9.1 Test arrangement . 52
6.9.2 Test method . 52
6.10 Control and monitoring functions . 52
6.10.0 General . 52
6.10.1 Test arrangement . 52
6.10.2 Processor monitoring- Test method . 52
6.10.3 Transmit subsystem monitoring-Test method . 53
6.10.4 Power-on/Reset-Test method . 53
6.10.5 Control Channel (CC) and Response Channel (RC) - Test method . 53
6.10.6 Network Control commands-Test method . 54
6.10.7 Initial burst transmission-Test method . 55
6.10.8 Inhibition of transmission-Test method . 55
6.11 Receive antenna off-axis gain pattern . 56
6.11.1 Test method . 56
6.11.1.1 Test site . 56
6.11.1.2 Method of measurement . 56
6.11.1.3 Computation . 57
6.12 Blocking performance . 57
6.12.1 Test method . 57
6.13 Adjacent Signal Selectivity . 58
6.13.1 Test method . 58
6.14 Test for determination of geographical location of the ESOMP . 58
6.14.1 Test arrangement . 58
6.14.2 Test method . 58
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 59
Annex B: Void . 61
Annex C (normative): Radiated measurement . 62
C.1 Test sites and general arrangements for measurements involving the use of radiated fields . 62
C.1.0 General . 62
C.1.1 Anechoic Chamber . 62
C.1.2 Anechoic Chamber with a conductive ground plane . 63
C.1.3 Open Area Test Site (OATS) . 64
C.1.4 Minimum requirements for test sites for measurements above 18 GHz . 65
C.1.5 Test antenna . 65
C.1.6 Substitution antenna . 66
C.1.7 Measuring antenna . 66
C.2 Guidance on the use of radiation test sites . 66
C.2.0 General . 66
C.2.1 Verification of the test site . 66
C.2.2 Preparation of the EUT . 66
C.2.3 Power supplies to the EUT . 66
C.2.4 Range length . 67
ETSI
7 ETSI EN 303 978 V2.2.1 (2024-12)
C.2.5 Site preparation . 67
C.3 Coupling of signals . 68
C.3.1 General . 68
C.4 Standard test methods . 68
C.4.0 General . 68
C.4.1 Calibrated setup . 68
C.4.2 Substitution method . 69
Annex D (normative): Conducted measurements . 70
Annex E (informative): General Requirements for RF Cables . 71
Annex F (informative): RF Waveguides . 72
Annex G (informative): Applicability of parameters given in ETSI EG 203 336 . 74
Annex H (informative): Maximum measurement uncertainty . 76
Annex I (informative): Bibliography . 77
Annex J (informative): Change history . 78
History . 79
ETSI
8 ETSI EN 303 978 V2.2.1 (2024-12)
Intellectual Property Rights
Essential patents
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pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be
found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the
ETSI IPR online database.
Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not
referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,
essential to the present document.
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ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its
Members. 3GPP™, LTE™ and 5G™ logo are trademarks of ETSI registered for the benefit of its Members and of the
3GPP Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of ®
the oneM2M Partners. GSM and
...
SLOVENSKI STANDARD
01-marec-2025
Satelitske zemeljske postaje in sistemi (SES) - Zemeljske postaje na mobilnih
platformah (ESOMP), ki komunicirajo s sateliti v geostacionarni orbiti in delujejo v
frekvenčnih pasovih od 27,5 GHz do 30,0 GHz in od 17,3 GHz do 20,2 GHz -
Harmonizirani standard za dostop do radijskega spektra
Satellite Earth Stations and Systems (SES) - Earth Stations on Mobile Platforms
(ESOMP) communicating with satellites in geostationary orbit, operating in the 27,5 GHz
to 30,0 GHz and 17,3 GHz to 20,2 GHz frequency bands - Harmonised Standard for
access to radio spectrum
Ta slovenski standard je istoveten z: ETSI EN 303 978 V2.2.1 (2024-12)
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
HARMONISED EUROPEAN STANDARD
Satellite Earth Stations and Systems (SES);
Earth Stations on Mobile Platforms (ESOMP)
communicating with satellites in geostationary orbit,
operating in the 27,5 GHz to 30,0 GHz and
17,3 GHz to 20,2 GHz frequency bands;
Harmonised Standard for access to radio spectrum
2 ETSI EN 303 978 V2.2.1 (2024-12)
Reference
REN/SES-00468
Keywords
antenna, earth station, GSO, mobile, regulation,
satellite
ETSI
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No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2024.
All rights reserved.
ETSI
3 ETSI EN 303 978 V2.2.1 (2024-12)
Contents
Intellectual Property Rights . 8
Foreword . 8
Modal verbs terminology . 9
Introduction . 9
1 Scope . 11
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 12
3 Definitions of terms, symbols and abbreviations . 13
3.1 Terms . 13
3.2 Symbols . 14
3.3 Abbreviations . 15
4 Technical requirements specifications . 16
4.1 General . 16
4.1.1 Environmental profile . 16
4.1.2 Operational configurations . 16
4.1.3 Determination of geographical location of the ESOMP . 16
4.1.4 EIRP for networks of ESOMPs . 16
Aggregate
4.1.5 Presentation of equipment for testing purposes . 16
4.1.6 Choice of model for testing . 17
4.2 Conformance requirements . 17
4.2.1 Off-axis spurious radiation . 17
4.2.1.1 Justification . 17
4.2.1.2 Specification. 17
4.2.1.3 Conformance tests . 18
4.2.2 On-axis spurious radiation . 18
4.2.2.1 Justification . 18
4.2.2.2 Specification. 18
4.2.2.2.1 "Carrier-on" radio state . 18
4.2.2.2.2 "Carrier-off" and "Emissions disabled" radio states . 19
4.2.2.3 Conformance tests . 19
4.2.3 Off-axis EIRP emission density within the band . 19
4.2.3.0 General . 19
4.2.3.1 Justification . 19
4.2.3.2 Total EIRP density specification . 19
4.2.3.3 Void. 20
4.2.3.4 Void. 20
4.2.3.5 Burst Transmission Specification . 20
4.2.3.6 Off-axis Geometry Specification . 20
4.2.3.7 Conformance tests . 21
4.2.4 Uplink Power Control Specification . 21
4.2.5 Carrier suppression . 21
4.2.5.1 Justification . 21
4.2.5.2 Specification. 21
4.2.5.3 Conformance tests . 21
4.2.6 Antenna pointing and polarization alignment . 21
4.2.6.1 Antenna pointing accuracy . 21
4.2.6.1.1 Justification . 21
4.2.6.1.2 Pointing accuracy specification . 21
4.2.6.1.3 On-axis cross polarization isolation specification . 22
4.2.6.1.4 Conformance tests . 22
4.2.6.2 Antenna Pointing Error Detection . 22
4.2.6.2.0 General . 22
4.2.6.2.1 Pointing error detection specification . 22
ETSI
4 ETSI EN 303 978 V2.2.1 (2024-12)
4.2.6.2.2 Polarization angle alignment specification . 22
4.2.6.2.3 Conformance tests . 23
4.2.7 Cessation of emissions . 23
4.2.7.1 Justification . 23
4.2.7.2 Specification. 23
4.2.7.2.1 Specification 1: Mode of cessation of emissions . 23
4.2.7.2.2 Specification 2: Conditions under which the ESOMP shall cease emissions . 23
4.2.7.2.3 Specification 3: Cessation of emissions . 24
4.2.7.2.4 Specification 4: Fault conditions . 24
4.2.7.3 Conformance tests . 24
4.2.8 Identification of the ESOMP . 24
4.2.8.1 Justification . 24
4.2.8.2 Specification. 24
4.2.8.3 Conformance tests . 24
4.2.9 Control and Monitoring Functions (CMFs) . 25
4.2.9.1 ESOMP States . 25
4.2.9.1.0 General . 25
4.2.9.1.1 CMF state diagram . 26
4.2.9.2 Processor monitoring . 27
4.2.9.2.1 Justification . 27
4.2.9.2.2 Specification . 27
4.2.9.2.3 Conformance tests . 28
4.2.9.3 Transmit subsystem monitoring . 28
4.2.9.3.1 Justification . 28
4.2.9.3.2 Specification . 28
4.2.9.3.3 Conformance tests . 28
4.2.9.4 Power-on/Reset . 28
4.2.9.4.1 Justification . 28
4.2.9.4.2 Specification . 28
4.2.9.4.3 Conformance tests . 28
4.2.9.5 Control Channel (CC) and Response Channel (RC) . 28
4.2.9.5.1 Justification . 28
4.2.9.5.2 Specification . 29
4.2.9.5.3 Conformance tests . 29
4.2.9.6 Network control commands . 29
4.2.9.6.1 Justification . 29
4.2.9.6.2 Specification . 29
4.2.9.6.3 Conformance tests . 30
4.2.9.7 Initial burst transmission . 30
4.2.9.7.1 Justification . 30
4.2.9.7.2 Specification . 30
4.2.9.7.3 Conformance tests . 30
4.2.9.8 Inhibition of transmissions . 30
4.2.9.8.1 Justification . 30
4.2.9.8.2 Specification . 31
4.2.9.8.3 Conformance tests . 31
4.2.10 Receive antenna off-axis gain pattern . 31
4.2.10.1 Justification . 31
4.2.10.2 Specification. 31
4.2.10.3 Conformance tests . 31
4.2.11 Blocking performance . 31
4.2.11.1 Justification . 31
4.2.11.2 Specification. 32
4.2.11.3 Conformance tests . 32
4.2.12 Adjacent Signal Selectivity . 32
4.2.12.1 Justification . 32
4.2.12.2 Specification. 32
4.2.12.3 Conformance tests . 32
5 Testing for compliance with technical requirements . 33
5.1 Environmental conditions for testing . 33
5.2 Radio test suites . 33
ETSI
5 ETSI EN 303 978 V2.2.1 (2024-12)
6 Test methods for all aspects of the ESOMP . 33
6.1 General . 33
6.1.0 Introduction. 33
6.1.1 Uplink power control . 33
6.1.1.1 General . 33
6.1.1.2 Test method . 34
6.1.2 Measuring receiver . 34
6.2 Off-axis spurious radiation . 35
6.2.0 Introduction. 35
6.2.1 Test method . 35
6.2.1.0 Void. 35
6.2.1.1 General . 35
6.2.1.2 Multi-carrier operation . 35
6.2.2 Measurements up to 1 000 MHz . 36
6.2.2.1 Test site . 36
6.2.2.2 Measuring receivers . 36
6.2.2.3 Procedure . 36
6.2.3 Measurements above 1 000 MHz . 36
6.2.3.0 General . 36
6.2.3.1 Identification of the significant frequencies of spurious radiation . 37
6.2.3.1.1 Test site. 37
6.2.3.1.2 Procedure . 37
6.2.3.2 Measurement of radiated power levels of identified spurious radiation . 37
6.2.3.2.1 Test site. 37
6.2.3.2.2 Procedure . 37
6.2.3.3 Measurement of conducted spurious radiation at the antenna flange . 38
6.2.3.3.1 Test site. 38
6.2.3.3.2 Procedure . 39
6.3 On-axis spurious radiation . 39
6.3.1 Test method . 39
6.3.1.0 General . 39
6.3.1.1 Test site . 39
6.3.1.2 Method of measurement . 39
6.3.1.2.1 General . 39
6.3.1.2.2 Method of measurement at the antenna flange . 39
6.3.1.2.3 Method of measurement for an EUT with antenna . 40
6.4 Off-axis EIRP emission density within the band . 41
6.4.1 Test method . 41
6.4.1.0 Introduction . 41
6.4.1.1 Transmit output power density . 42
6.4.1.1.1 General . 42
6.4.1.1.2 Test site. 42
6.4.1.1.3 Method of measurement . 42
6.4.1.2 Antenna transmit gain . 43
6.4.1.2.1 General . 43
6.4.1.2.2 Test site. 43
6.4.1.2.3 Method of measurement . 43
6.4.1.3 Antenna transmit radiation patterns . 44
6.4.1.3.1 General . 44
6.4.1.3.2 Test site. 44
6.4.1.3.3 Test arrangement . 45
6.4.1.3.4 Co-polar radiation pattern - azimuth . 45
6.4.1.3.5 Co-polar radiation pattern - elevation . 45
6.4.1.3.6 Cross-polar radiation pattern - azimuth . 46
6.4.1.3.7 Cross-polar radiation pattern - elevation . 46
6.4.2 Computation of results . 47
6.5 Carrier suppression . 47
6.5.1 Test method . 47
6.6 Antenna pointing . 47
6.6.1 General . 47
6.6.2 Test method . 48
6.7 Polarization angle alignment capability . 48
ETSI
6 ETSI EN 303 978 V2.2.1 (2024-12)
6.7.1 General . 48
6.7.2 Test site . 48
6.7.3 Test method . 48
6.8 Cessation of emissions of the ESOMP . 49
6.8.0 General . 49
6.8.1 Test Method . 49
6.8.1.1 Required documentation . 49
6.8.1.2 Cessation of emissions from the "Transmission enabled" state . 49
6.8.1.3 Cessation of emission from the "Transmission disabled" state . 49
6.8.1.4 Cessation of emission from the "Initial Phase" state . 50
6.8.1.4.1 EUTs transmitting initial bursts . 50
6.8.1.4.2 EUTs not transmitting initial bursts . 50
6.8.1.5 "Single action" means of cessation of emissions. 51
6.8.1.6 Fault conditions . 51
6.9 Identification of ESOMP . 52
6.9.1 Test arrangement . 52
6.9.2 Test method . 52
6.10 Control and monitoring functions . 52
6.10.0 General . 52
6.10.1 Test arrangement . 52
6.10.2 Processor monitoring- Test method . 52
6.10.3 Transmit subsystem monitoring-Test method . 53
6.10.4 Power-on/Reset-Test method . 53
6.10.5 Control Channel (CC) and Response Channel (RC) - Test method . 53
6.10.6 Network Control commands-Test method . 54
6.10.7 Initial burst transmission-Test method . 55
6.10.8 Inhibition of transmission-Test method . 55
6.11 Receive antenna off-axis gain pattern . 56
6.11.1 Test method . 56
6.11.1.1 Test site . 56
6.11.1.2 Method of measurement . 56
6.11.1.3 Computation . 57
6.12 Blocking performance . 57
6.12.1 Test method . 57
6.13 Adjacent Signal Selectivity . 58
6.13.1 Test method . 58
6.14 Test for determination of geographical location of the ESOMP . 58
6.14.1 Test arrangement . 58
6.14.2 Test method . 58
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 59
Annex B: Void . 61
Annex C (normative): Radiated measurement . 62
C.1 Test sites and general arrangements for measurements involving the use of radiated fields . 62
C.1.0 General . 62
C.1.1 Anechoic Chamber . 62
C.1.2 Anechoic Chamber with a conductive ground plane . 63
C.1.3 Open Area Test Site (OATS) . 64
C.1.4 Minimum requirements for test sites for measurements above 18 GHz . 65
C.1.5 Test antenna . 65
C.1.6 Substitution antenna . 66
C.1.7 Measuring antenna . 66
C.2 Guidance on the use of radiation test sites . 66
C.2.0 General . 66
C.2.1 Verification of the test site . 66
C.2.2 Preparation of the EUT . 66
C.2.3 Power supplies to the EUT . 66
C.2.4 Range length . 67
ETSI
7 ETSI EN 303 978 V2.2.1 (2024-12)
C.2.5 Site preparation . 67
C.3 Coupling of signals . 68
C.3.1 General . 68
C.4 Standard test methods . 68
C.4.0 General . 68
C.4.1 Calibrated setup . 68
C.4.2 Substitution method . 69
Annex D (normative): Conducted measurements . 70
Annex E (informative): General Requirements for RF Cables . 71
Annex F (informative): RF Waveguides . 72
Annex G (informative): Applicability of parameters given in ETSI EG 203 336 . 74
Annex H (informative): Maximum measurement uncertainty . 76
Annex I (informative): Bibliography . 77
Annex J (informative): Change history . 78
History . 79
ETSI
8 ETSI EN 303 978 V2.2.1 (2024-12)
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La norme SIST EN 303 978 V2.2.1:2025 est essentielle pour la régulation des Stations Terriennes sur Plateformes Mobiles (ESOMP), offrant un ensemble de caractéristiques techniques et de méthodes de mesure pour ces équipements. Son périmètre couvre la conception et l'exploitation des ESOMP sur diverses plateformes mobiles, y compris les trains, les navires maritimes, les avions et d'autres véhicules, ce qui témoigne de sa flexibilité et de son adaptabilité à différents environnements d'utilisation. L'une des forces majeures de cette norme réside dans son approche harmonisée d'accès au spectre radio, particulièrement dans les bandes de fréquence de 27,5 GHz à 30,0 GHz et de 17,3 GHz à 20,2 GHz. Cela permet d'assurer une interopérabilité entre les systèmes et une gestion efficace des ressources spectrales. De plus, elle fournit des directives claires sur le fonctionnement des ESOMP, que ce soit en mode mobile ou stationnaire, offrant ainsi des options pour les opérateurs qui cherchent une autonomie tout en étant intégrés dans un réseau plus vaste via la facilitation du contrôle par une Installation de Contrôle de Réseau (NCF). La norme précise également la séparation des responsabilités, en soulignant que bien que la gestion des ESOMP puisse être centralisée ou autonome, le NCF ne fait pas partie du champ d'application de ce document, ce qui clarifie les attentes et les fonctionnalités des systèmes en cours d'utilisation. Cette distinction est particulièrement importante pour les utilisateurs et les fabricants, car elle leur permet de se concentrer sur les aspects liés au fonctionnement des ESOMP sans se perdre dans les détails de la gestion réseau. Enfin, le lien établi entre cette norme et les exigences essentielles de l’article 3.2 de la Directive 2014/53/EU dans l'annexe A renforce sa pertinence dans le cadre réglementaire européen. Cela assure une conformité avec les normes de sécurité et de compétence tout en favorisant le développement de technologies de communication avancées. En somme, la norme SIST EN 303 978 V2.2.1:2025 représente un outil crucial pour le développement et la standardisation des communications par satellite, notamment dans les applications ESOMP.
The SIST EN 303 978 V2.2.1:2025 standard is a comprehensive document that outlines the technical characteristics and measurement methods for Earth Stations on Mobile Platforms (ESOMP) that communicate with satellites in geostationary orbit. The scope of this standard is significant as it addresses both mobile and stationary operations, reflecting the diverse applications of ESOMP across various platforms, including trains, maritime vessels, and aircraft. One of the primary strengths of this standard is its emphasis on the versatility of ESOMP, allowing for different operational modes suitable for diverse environments. This flexibility is essential for industries requiring reliable satellite communication under varying conditions. Moreover, the standard defines specific transmit and receive frequency bands (27.5 GHz to 30.0 GHz and 17.3 GHz to 20.2 GHz), ensuring compatibility and performance consistency among different devices and applications. The standard also highlights the role of the Network Control Facility (NCF), even though its detailed operations are outside the document's primary focus. By clarifying how ESOMP is monitored and controlled-either via a centralized approach for a network of units or through autonomous control within individual platforms-the standard provides a clear framework for implementing these systems effectively. Additionally, the connection to essential requirements outlined in Article 3.2 of the Directive 2014/53/EU further establishes the standard's relevance in terms of compliance and regulatory alignment, enabling stakeholders to understand how ESOMP technology meets required legal specifications in the European context. In summary, SIST EN 303 978 V2.2.1:2025 serves as a critical harmonized standard for the accessibility of radio spectrum in the growing field of satellite communication for mobile platforms, ensuring that the technology is both functional and compliant across various applications.
SIST EN 303 978 V2.2.1:2025 표준은 지구 정지 궤도 위성과 통신하는 이동 플랫폼에서의 지구국(ESOMP)에 대한 기술적 특성과 측정 방법을 명확하게 규정하고 있습니다. 이 표준은 ESOMP가 여러 모바일 플랫폼(예: 기차, 해양 선박, 항공기 등)에서 작동할 수 있도록 설계되었으며, 이동성과 고정성을 모두 갖춘 운영 방식을 제공합니다. 이 표준의 주요 강점 중 하나는 이 문서가 다양한 플랫폼에서의 ESOMP 운영을 지원하는 기술적 명세서를 제공함으로써, 사용자와 제조업체가 보다 신뢰할 수 있는 시스템을 구축할 수 있도록 돕는 것입니다. 또한, 이 문서에서는 ESOMP 장비가 네트워크 제어 시설(NCF)에 의해 제어 및 모니터링될 수 있음을 명시하고 있습니다. 이러한 기능은 중앙 집중식 운영 또는 자율 제어 방식으로 구현할 수 있으며, 이는 표준의 유연성을 더욱 강조합니다. 주파수 대역(27.5 GHz ~ 30.0 GHz 및 17.3 GHz ~ 20.2 GHz)에 대한 조화된 표준을 통해, ESOMP가 전 세계적으로 무선 주파수 스펙트럼에 접근할 수 있도록 지원합니다. 이는 2014/53/EU 지침 제3.2 조항의 핵심 요건과 관련이 있으며, 덧붙여지는 부록 A에서 이러한 연관성을 명확히 설명하고 있습니다. SIST EN 303 978 V2.2.1:2025 표준은 이동 플랫폼에서의 지구국 기술의 진보와 국제 표준화를 촉진하며, 현대 통신 시스템의 핵심 기능을 충족시키기 위한 매우 중요한 기준점을 제공합니다.
SIST EN 303 978 V2.2.1:2025は、移動プラットフォーム上の地球局（ESOMP）と静止軌道衛星との通信に関する規格であり、その技術的特徴と測定方法を明確に定義しています。この標準は、特に27.5 GHzから30.0 GHzおよび17.3 GHzから20.2 GHzの周波数帯域で動作するESOMPに焦点を当てています。 この標準の範囲は広く、ESOMPがモバイルおよび固定の運用に対応できるように設計されています。鉄道、海上船舶、航空機などのさまざまな移動プラットフォーム上での使用が明示されており、汎用性と適応性を兼ね備えています。また、ESOMPの管理および監視機能は、ネットワーク制御施設（NCF）によって行われ、中央集約的な管理または自律的な制御のいずれかが可能です。このような機能は、現行文書の範囲外ですが、重要な要素となっています。 標準の強みは、その測定方法と技術的特徴が明確に規定されている点にあります。これにより、ユーザーはESOMPのパフォーマンスを正確に評価し、適切な機器の選定と運用が可能になります。特に、衛星通信における効率性や信頼性は、この標準によって確保されます。また、付録Aでは、2014/53/EU指令第3.2条の基本要件との関連性が示されており、欧州連合の規制に適合した運用が促進されます。 この規格は、ESOMPの技術的基盤を支えるものであり、通信業界の発展にとって重要な役割を果たすとともに、関連企業の競争力を高める要因となるでしょう。全体的に、SIST EN 303 978 V2.2.1:2025は、移動プラットフォーム上の地球局に関する標準として、非常に関連性が高く、技術の進化に対してもしっかりと対応する内容となっています。
Der Standard SIST EN 303 978 V2.2.1:2025 stellt eine harmonisierte Norm für Erdstationen auf mobilen Plattformen (ESOMP) dar, die mit Satelliten im geostationären Orbit kommunizieren. Diese Norm definiert die technischen Eigenschaften und Messmethoden für ESOMP-Geräte, die sowohl für mobile als auch für stationäre Anwendungen konzipiert sind. Die Relevanz dieses Standards ist unbestreitbar, da er die Grundlage für die Nutzung des Frequenzspektrums in den Bereich von 27,5 GHz bis 30,0 GHz sowie 17,3 GHz bis 20,2 GHz legt. Ein wesentlicher Vorteil des Standards ist die Flexibilität, die er hinsichtlich der Betriebsumgebungen bietet. ESOMP kann auf verschiedenen mobilen Plattformen wie Zügen, Schiffen, Flugzeugen und anderen Fahrzeugen betrieben werden, was die Einsatzmöglichkeiten erheblich erweitert. Die Norm fördert somit die Interoperabilität zwischen unterschiedlichen Systemen und verbessert die Integration moderner Kommunikationslösungen. Die Definition der technischen Merkmale und die zugrunde liegenden Messmethoden im Standard sind besonders hervorzuheben. Dies gewährleistet, dass die Anlagen effizient in bestehende Netzwerke integriert werden können und die festgelegten Anforderungen an die Sende- und Empfangsfrequenzen erfüllt werden. Der klare Bezug zu den wesentlichen Anforderungen des Artikels 3.2 der Richtlinie 2014/53/EU in Anhang A zeigt zudem die Konformität des Standards mit den europäischen Regelungen, was seine Akzeptanz im Markt stärkt. Zusammengefasst bietet der Standards SIST EN 303 978 V2.2.1:2025 eine solide Grundlage für die Entwicklung und den Betrieb von ESOMP-Systemen, deren Bedeutung in der modernen Telekommunikation nicht zu unterschätzen ist. Die klaren Vorgaben und die umfassende Abdeckung relevanter Frequenzbänder machen diesen Standard zu einem zukunftsweisenden Dokument im Bereich der Satellitenkommunikation.
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