oSIST prEN 303 699 V1.2.0:2026

• Abstract:

  REN/SES-00462

• Status: Not Published
• Public Enquiry End Date: 27-Sep-2026
• ICS: 33.060.30 - Radio relay and fixed satellite communications systems
• Technical Committee: MOC - Mobile Communications
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 06-Jul-2026
• Due Date: 23-Nov-2026
• Completion Date: 15-Sep-2026
• Ref Project: ETSI EN 303 699 V1.2.0 (2026-07) - Satellite Earth Stations and Systems (SES); Fixed earth stations communicating with non-geostationary satellite systems in the 20 GHz and 30 GHz FSS bands; Harmonised Standard for access to radio spectrum

Overview

oSIST prEN 303 699 V1.2.0:2026 is a harmonised European standard developed under the auspices of SIST and ETSI. The document sets out the technical and regulatory framework for fixed earth stations communicating with non-geostationary satellite systems in the 20 GHz and 30 GHz Fixed Satellite Service (FSS) bands. As satellite communications evolve to support expanding broadband and data connectivity needs, this standard ensures robust radio spectrum access for modern satellite earth station deployments, maintaining compliance with European regulatory requirements.

By harmonising technical specifications and conformance testing procedures, oSIST prEN 303 699 supports the reliable and interference-free operation of satellite earth stations across Europe, thereby promoting seamless integration with non-geostationary orbit (non-GSO) satellite networks.

Key Topics

• Technical Requirements:
  Addresses essential technical conditions including emission limits, carrier suppression, spurious radiation (off-axis and on-axis), and antenna pointing accuracy.
• Spectrum Access Compliance:
  Provides harmonised requirements to enable access to the European radio spectrum for fixed earth stations, in line with regulatory directives.
• Conformance Testing:
  Outlines detailed methods for compliance checks, including environmental testing, equipment setup, and measurement standards for emission and interference.
• Control and Monitoring Functions:
  Specifies monitoring, fault management, power-on/reset protocols, transmission control, and network command handling to enhance operational safety and reliability.
• Equipment Performance:
  Covers operational configurations, cessation of emissions under defined conditions, and performance metrics such as blocking, adjacent signal selectivity, and image frequency rejection.

Applications

oSIST prEN 303 699 V1.2.0 is vital for satellite communication stakeholders including:

• Satellite Operators:
  Ensures that earth stations interfacing with non-GSO satellites comply with harmonised transmission and spectrum rules, supporting service scalability and interoperability.
• Earth Station Manufacturers:
  Provides clear design and test criteria for new products operating in the 20 GHz and 30 GHz FSS bands, facilitating market entry across the European Economic Area.
• Network Integrators and Service Providers:
  Guarantees compatibility and reliable operation of deployed ground segment infrastructure, offering interference protection and meeting quality of service commitments.
• Regulatory Authorities:
  Supports consistent enforcement of spectrum allocation and emissions integrity, minimising interference and securing the spectrum for shared and future satellite use.

Related Standards

For comprehensive compliance and design integrity, the following related standards and directives should also be considered:

• ETSI EN 301 489 Series - Electromagnetic compatibility and Radio Spectrum Matters (ERM);
• ETSI EN 302 340 - Fixed Broadband Data Transmission Systems;
• ETSI EN 301 428 - Satellite Earth Stations and Systems (SES);
• Directive 2014/53/EU (RED) - Radio Equipment Directive;
• ETSI SR 000 314 - Guidelines on Intellectual Property Rights for ETSI standards.

These standards complement oSIST prEN 303 699 by addressing aspects such as EMC, broader FSS equipment specifications, and obligations related to intellectual property and regulatory compliance.

---

By following oSIST prEN 303 699 V1.2.0, organisations can ensure that fixed earth stations operate efficiently with non-GSO satellite systems, remain interoperable in a rapidly evolving satellite communications ecosystem, and maintain full regulatory conformity for 20 GHz and 30 GHz FSS bands across Europe.

Draft ETSI EN 303 699 V1.2.0 (2026-07)

HARMONISED EUROPEAN STANDARD
Satellite Earth Stations and Systems (SES);
Fixed earth stations communicating with non-geostationary
satellite systems in the 20 GHz and 30 GHz FSS bands;
Harmonised Standard for access to radio spectrum

2 Draft ETSI EN 303 699 V1.2.0 (2026-07)

Reference
REN/SES-00462
Keywords
antenna, earth station, FSS, harmonised standard,
non-GSO, regulation, satellite

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

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 of this document may be reproduced in any form, by any means and in any media, without the prior written
authorization of ETSI and except as expressly permitted below.
By way of exception and when the document is a normative deliverable (European Standard (EN),
Technical Specification (TS), Group Specification (GS) or ETSI Standard (ES)), ETSI authorizes to reproduce
and incorporate into products, services and technical documentation only those extracts (e.g. templates) that are strictly
necessary for the technical implementation of the normative deliverable, to ensure compliance with the latter.
Nothing in this notice shall be construed as limiting any mandatory exceptions to copyright provided by applicable law.

© ETSI 2026.
All rights reserved.
ETSI
3 Draft ETSI EN 303 699 V1.2.0 (2026-07)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
1 Scope . 9
2 References . 10
2.1 Normative references . 10
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 11
3.1 Terms . 11
3.2 Symbols . 13
3.3 Abbreviations . 13
4 Technical requirements specifications . 14
4.1 General . 14
4.1.1 Environmental profile . 14
4.1.2 Operational configurations . 14
4.1.3 EIRP for networks of ESs . 14
Aggregate
4.1.4 Void . 15
4.1.5 Void . 15
4.1.6 Void . 15
4.1.7 Peak pointing accuracy . 15
4.2 Conformance requirements . 15
4.2.1 Off-axis spurious radiation . 15
4.2.1.1 Justification . 15
4.2.1.2 Specification. 15
4.2.1.3 Conformance tests . 16
4.2.2 On-axis spurious radiation . 16
4.2.2.1 Justification . 16
4.2.2.2 Specification. 16
4.2.2.2.1 "Carrier-on" radio state . 16
4.2.2.2.2 "Carrier-off" and "Emissions disabled" radio states . 17
4.2.2.3 Conformance tests . 17
4.2.3 Void . 17
4.2.4 Void . 17
4.2.5 Carrier suppression . 17
4.2.5.1 Justification . 17
4.2.5.2 Specification. 17
4.2.5.3 Conformance tests . 17
4.2.6 Antenna pointing accuracy . 18
4.2.6.1 Purpose . 18
4.2.6.2 Pointing accuracy specification . 18
4.2.6.3 On-axis polarization angle specification . 18
4.2.6.4 Conformance tests . 18
4.2.7 Cessation of emissions . 18
4.2.7.1 Justification . 18
4.2.7.2 Specification. 18
4.2.7.2.1 Specification 1: Mode of cessation of emissions . 18
4.2.7.2.2 Specification 2: Conditions under which the ES shall cease emissions. 19
4.2.7.2.3 Specification 3: Cessation of emissions . 19
4.2.7.2.4 Specification 4: Fault conditions . 19
4.2.7.3 Conformance tests . 19
4.2.8 Control and Monitoring Functions (CMFs) . 20
4.2.8.1 ES States . 20
4.2.8.1.1 General . 20
4.2.8.1.2 CMF state diagram . 21
ETSI
4 Draft ETSI EN 303 699 V1.2.0 (2026-07)
4.2.8.2 Processor monitoring . 22
4.2.8.2.1 Justification . 22
4.2.8.2.2 Specification . 22
4.2.8.2.3 Conformance tests . 22
4.2.8.3 Transmit subsystem monitoring . 23
4.2.8.3.1 Justification . 23
4.2.8.3.2 Specification . 23
4.2.8.3.3 Conformance tests . 23
4.2.8.4 Power-on/Reset . 23
4.2.8.4.1 Justification . 23
4.2.8.4.2 Specification . 23
4.2.8.4.3 Conformance tests . 23
4.2.8.5 Control Channel (CC) and Response Channel (RC) . 23
4.2.8.5.1 Justification . 23
4.2.8.5.2 Specification . 23
4.2.8.5.3 Conformance tests . 24
4.2.8.6 Network control commands . 24
4.2.8.6.1 Justification . 24
4.2.8.6.2 Specification . 24
4.2.8.6.3 Conformance tests . 25
4.2.8.7 Initial burst transmission . 25
4.2.8.7.1 Justification . 25
4.2.8.7.2 Specification . 25
4.2.8.7.3 Conformance tests . 25
4.2.8.8 Inhibition of transmissions . 25
4.2.8.8.1 Justification . 25
4.2.8.8.2 Specification . 25
4.2.8.8.3 Conformance tests . 26
4.2.9 Receive antenna off-axis gain pattern . 26
4.2.9.1 Justification . 26
4.2.9.2 Specification for ES without beam forming and without interference mitigation techniques . 26
4.2.9.3 Conformance tests . 26
4.2.10 Blocking performance . 27
4.2.10.1 Justification . 27
4.2.10.2 Specification. 27
4.2.10.3 Conformance tests . 27
4.2.11 Adjacent Signal Selectivity . 27
4.2.11.1 Justification . 27
4.2.11.2 Specification. 27
4.2.11.3 Conformance tests . 27
4.2.12 Image frequency rejection . 28
4.2.12.1 Justification . 28
4.2.12.2 Specification. 28
4.2.12.3 Conformance tests . 28
5 Testing for compliance with technical requirements . 28
5.1 Environmental conditions for testing . 28
5.2 Presentation of equipment for testing purposes . 28
5.3 Choice of model for testing . 28
6 Test methods for all aspects of the ES. 29
6.1 General . 29
6.1.1 General requirements . 29
6.2 Off-axis spurious radiation . 29
6.2.1 General . 29
6.2.2 Test method . 29
6.2.2.1 General . 29
6.2.2.2 Multi-carrier operation . 29
6.2.3 Measurements up to 1 000 MHz . 30
6.2.3.1 Test site . 30
6.2.3.2 Measuring receivers . 30
6.2.3.3 Procedure . 30
ETSI
5 Draft ETSI EN 303 699 V1.2.0 (2026-07)
6.2.4 Measurements above 1 000 MHz . 31
6.2.4.1 General . 31
6.2.4.2 Identification of the significant frequencies of spurious radiation . 31
6.2.4.2.1 Test site. 31
6.2.4.2.2 Procedure . 31
6.2.4.3 Measurement of radiated power levels of identified spurious radiation . 32
6.2.4.3.1 Test site. 32
6.2.4.3.2 Procedure . 32
6.2.4.4 Measurement of conducted spurious radiation at the antenna flange . 33
6.2.4.4.1 Test site. 33
6.2.4.4.2 Procedure . 34
6.3 On-axis spurious radiation . 34
6.3.1 Test method . 34
6.3.1.1 General . 34
6.3.1.2 Test site . 34
6.3.1.3 Method of measurement . 34
6.3.1.3.1 General . 34
6.3.1.3.2 Method of measurement at the antenna flange . 35
6.3.1.3.3 Method of measurement for an EUT with antenna . 37
6.4 Void . 38
6.5 Carrier suppression . 38
6.5.1 General . 38
6.5.2 Test method . 38
6.6 Antenna pointing . 38
6.6.1 General . 38
6.6.2 Test method . 39
6.7 Polarization angle alignment capability . 39
6.7.1 General . 39
6.7.2 Test site . 40
6.7.3 Procedure . 40
6.8 Cessation of emissions of the ES . 41
6.8.1 General . 41
6.8.2 Test Method . 41
6.8.2.1 Required documentation . 41
6.8.2.2 Cessation of emissions from the "Transmission enabled" state . 41
6.8.2.3 Cessation of emission from the "Transmission disabled" state . 41
6.8.2.4 Cessation of emission from the "Initial Phase" state . 42
6.8.2.4.1 EUTs transmitting initial bursts . 42
6.8.2.4.2 EUTs not transmitting initial bursts . 42
6.8.2.5 "Single action" means of cessation of emissions. 42
6.8.2.6 Fault conditions . 43
6.9 Control and monitoring functions . 43
6.9.1 General . 43
6.9.2 Test arrangement . 43
6.9.3 Processor monitoring- Test method . 44
6.9.4 Transmit subsystem monitoring-Test method . 44
6.9.5 Power-on/Reset-Test method . 44
6.9.6 Control Channel and Response Channel -Test method . 45
6.9.7 Network Control commands-Test method . 45
6.9.8 Initial burst transmission-Test method . 47
6.9.9 Inhibition of transmission-Test method . 47
6.10 Receive EUT antenna off-axis gain pattern . 47
6.10.0 General . 47
6.10.1 Test method . 47
6.10.1.1 Test site . 47
6.10.1.2 Method of measurement . 48
6.10.1.3 Computation . 48
6.11 Blocking performance . 48
6.11.1 General . 48
6.11.2 Test method . 49
6.12 Adjacent Signal Selectivity . 50
6.12.1 Test method . 50
ETSI
6 Draft ETSI EN 303 699 V1.2.0 (2026-07)
6.13 Image frequency rejection . 51
Annex A (normative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 52
Annex B (informative): Linear Polarization Alignment Error Calculation . 55
Annex C (normative): Radiated measurement . 56
C.1 Test sites and general arrangements for measurements involving the use of radiated fields . 56
C.1.1 General . 56
C.1.2 Anechoic Chamber . 56
C.1.3 Anechoic Chamber with a conductive ground plane . 57
C.1.4 Open Area Test Site (OATS) . 58
C.1.5 Minimum requirements for test sites for measurements above 18 GHz . 59
C.1.6 Test antenna . 59
C.1.7 Substitution antenna . 60
C.1.8 Measuring antenna . 60
C.2 Guidance on the use of radiation test sites . 60
C.2.1 General . 60
C.2.2 Verification of the test site . 60
C.2.3 Preparation of the EUT . 60
C.2.4 Power supplies to the EUT . 60
C.2.5 Range length . 61
C.2.6 Site preparation . 61
C.3 Coupling of signals . 62
C.3.1 General . 62
C.4 Standard test methods . 62
C.4.1 General . 62
C.4.2 Calibrated setup . 62
C.4.3 Substitution method . 63
Annex D (normative): Conducted measurements . 64
Annex E (informative): RF Cables . 65
Annex F (informative): RF Waveguides . 66
Annex G (informative): Measurement equipment . 67
G.1 Maximum measurement uncertainty . 67
G.2 Measuring receiver . 67
Annex H (informative): Bibliography . 69
Annex I (informative): Change history . 70
History . 71

ETSI
7 Draft ETSI EN 303 699 V1.2.0 (2026-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables (European Standard (EN), Technical Specification (TS),
Group Specification (GS) or ETSI Standard (ES)) may have been declared to ETSI. The declarations 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
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Foreword
This draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee Satellite Earth
Stations and Systems (SES), and is now submitted for the combined Public Enquiry and Vote phase of the ETSI
Standardisation Request deliverable Approval Procedure (SRdAP).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.1] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation
of the laws of the Member States relating to the making available on the market of radio equipment and repealing
Directive 1999/5/EC [i.2].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in table A.1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

ETSI
8 Draft ETSI EN 303 699 V1.2.0 (2026-07)
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
9 Draft ETSI EN 303 699 V1.2.0 (2026-07)
1 Scope
The present document specifies technical characteristics and methods for measurements for satellite communications
Earth Stations (ES) with the following characteristics:
• The ES is designed for stationary operation.
• The ES is operating as part of a satellite network (e.g. star, mesh or point to point) used for the distribution
and/or exchange of information.
• The transmit and receive frequencies are shown in Table 1.
Table 1: Frequency bands
Frequency Bands/frequencies
Transmit (Earth-to-space) 1 27,5 GHz to 29,1 GHz
Transmit (Earth-to-space) 2 29,5 GHz to 30,0 GHz
Receive (space-to-Earth) 17,3 GHz to 20,2 GHz

• The ES transmits within the frequency range from 27,5 GHz to 29,1 GHz and 29,5 GHz to 30,0 GHz, which
are bands allocated to the Fixed Satellite Services (FSS) (Earth-to-space) among other services.
• At the national level, terminals covered by the present document, might operate on a co-frequency basis, with
stations of other FSS networks / systems or with stations of other services. The present document does not
cover requirements for ensuring protection of such services.
• The ES receives within the range from 17,30 GHz to 20,20 GHz (FSS).
• The ES uses linear or circular polarization.
• The ES operates through non-geostationary satellites.
• The ES is designed for unattended operation and it does not address specifications or requirements for earth
stations operating as gateways or master earth station.
• The ES is controlled and monitored by a Network Control Facility (NCF). This function may be performed
centrally (e.g. for a network of ESs with a central hub) or it could be performed within the ES for autonomous
control. The NCF is outside the scope of the present document.
• The ES has one or more directive antennas that track satellites.
The present document may also be applicable to the frequency bands 30,0 GHz to 31,0 GHz (Earth-to-space) and
20,2 GHz to 21,2 GHz (space-to-Earth) subject to national regulation.
The present document applies to the ES including its ancillary equipment and its various telecommunication ports, and
when operated within the boundary limits of the operational environmental profile as defined by the intended use of the
ES
NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive
2014/53/EU [i.1] is given in annex A.
ETSI
10 Draft ETSI EN 303 699 V1.2.0 (2026-07)
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or non-
specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long-term validity.
The following referenced documents are necessary for the application of the present document.
[1] Void.
[2] CISPR 16-1-1:2019: "Specification for radio disturbance and immunity measuring apparatus and
methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus".
[3]
...

SLOVENSKI STANDARD
01-september-2026
Satelitske zemeljske postaje in sistemi (SES) - Fiksne zemeljske postaje, ki
komunicirajo z negeostacionarnimi satelitskimi sistemi FSS v pasovih 20 GHz in
30 GHz - Harmonizirani standard za dostop do radijskega spektra
Satellite Earth Stations and Systems (SES) - Fixed earth stations communicating with
non-geostationary satellite systems in the 20 GHz and 30 GHz FSS bands - Harmonised
Standard for access to radio spectrum
Ta slovenski standard je istoveten z: ETSI EN 303 699 V1.2.0 (2026-07)
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.

Draft ETSI EN 303 699 V1.2.0 (2026-07)

HARMONISED EUROPEAN STANDARD
Satellite Earth Stations and Systems (SES);
Fixed earth stations communicating with non-geostationary
satellite systems in the 20 GHz and 30 GHz FSS bands;
Harmonised Standard for access to radio spectrum

2 Draft ETSI EN 303 699 V1.2.0 (2026-07)

Reference
REN/SES-00462
Keywords
antenna, earth station, FSS, harmonised standard,
non-GSO, regulation, satellite

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

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 of this document may be reproduced in any form, by any means and in any media, without the prior written
authorization of ETSI and except as expressly permitted below.
By way of exception and when the document is a normative deliverable (European Standard (EN),
Technical Specification (TS), Group Specification (GS) or ETSI Standard (ES)), ETSI authorizes to reproduce
and incorporate into products, services and technical documentation only those extracts (e.g. templates) that are strictly
necessary for the technical implementation of the normative deliverable, to ensure compliance with the latter.
Nothing in this notice shall be construed as limiting any mandatory exceptions to copyright provided by applicable law.

© ETSI 2026.
All rights reserved.
ETSI
3 Draft ETSI EN 303 699 V1.2.0 (2026-07)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
1 Scope . 9
2 References . 10
2.1 Normative references . 10
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 11
3.1 Terms . 11
3.2 Symbols . 13
3.3 Abbreviations . 13
4 Technical requirements specifications . 14
4.1 General . 14
4.1.1 Environmental profile . 14
4.1.2 Operational configurations . 14
4.1.3 EIRP for networks of ESs . 14
Aggregate
4.1.4 Void . 15
4.1.5 Void . 15
4.1.6 Void . 15
4.1.7 Peak pointing accuracy . 15
4.2 Conformance requirements . 15
4.2.1 Off-axis spurious radiation . 15
4.2.1.1 Justification . 15
4.2.1.2 Specification. 15
4.2.1.3 Conformance tests . 16
4.2.2 On-axis spurious radiation . 16
4.2.2.1 Justification . 16
4.2.2.2 Specification. 16
4.2.2.2.1 "Carrier-on" radio state . 16
4.2.2.2.2 "Carrier-off" and "Emissions disabled" radio states . 17
4.2.2.3 Conformance tests . 17
4.2.3 Void . 17
4.2.4 Void . 17
4.2.5 Carrier suppression . 17
4.2.5.1 Justification . 17
4.2.5.2 Specification. 17
4.2.5.3 Conformance tests . 17
4.2.6 Antenna pointing accuracy . 18
4.2.6.1 Purpose . 18
4.2.6.2 Pointing accuracy specification . 18
4.2.6.3 On-axis polarization angle specification . 18
4.2.6.4 Conformance tests . 18
4.2.7 Cessation of emissions . 18
4.2.7.1 Justification . 18
4.2.7.2 Specification. 18
4.2.7.2.1 Specification 1: Mode of cessation of emissions . 18
4.2.7.2.2 Specification 2: Conditions under which the ES shall cease emissions. 19
4.2.7.2.3 Specification 3: Cessation of emissions . 19
4.2.7.2.4 Specification 4: Fault conditions . 19
4.2.7.3 Conformance tests . 19
4.2.8 Control and Monitoring Functions (CMFs) . 20
4.2.8.1 ES States . 20
4.2.8.1.1 General . 20
4.2.8.1.2 CMF state diagram . 21
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4 Draft ETSI EN 303 699 V1.2.0 (2026-07)
4.2.8.2 Processor monitoring . 22
4.2.8.2.1 Justification . 22
4.2.8.2.2 Specification . 22
4.2.8.2.3 Conformance tests . 22
4.2.8.3 Transmit subsystem monitoring . 23
4.2.8.3.1 Justification . 23
4.2.8.3.2 Specification . 23
4.2.8.3.3 Conformance tests . 23
4.2.8.4 Power-on/Reset . 23
4.2.8.4.1 Justification . 23
4.2.8.4.2 Specification . 23
4.2.8.4.3 Conformance tests . 23
4.2.8.5 Control Channel (CC) and Response Channel (RC) . 23
4.2.8.5.1 Justification . 23
4.2.8.5.2 Specification . 23
4.2.8.5.3 Conformance tests . 24
4.2.8.6 Network control commands . 24
4.2.8.6.1 Justification . 24
4.2.8.6.2 Specification . 24
4.2.8.6.3 Conformance tests . 25
4.2.8.7 Initial burst transmission . 25
4.2.8.7.1 Justification . 25
4.2.8.7.2 Specification . 25
4.2.8.7.3 Conformance tests . 25
4.2.8.8 Inhibition of transmissions . 25
4.2.8.8.1 Justification . 25
4.2.8.8.2 Specification . 25
4.2.8.8.3 Conformance tests . 26
4.2.9 Receive antenna off-axis gain pattern . 26
4.2.9.1 Justification . 26
4.2.9.2 Specification for ES without beam forming and without interference mitigation techniques . 26
4.2.9.3 Conformance tests . 26
4.2.10 Blocking performance . 27
4.2.10.1 Justification . 27
4.2.10.2 Specification. 27
4.2.10.3 Conformance tests . 27
4.2.11 Adjacent Signal Selectivity . 27
4.2.11.1 Justification . 27
4.2.11.2 Specification. 27
4.2.11.3 Conformance tests . 27
4.2.12 Image frequency rejection . 28
4.2.12.1 Justification . 28
4.2.12.2 Specification. 28
4.2.12.3 Conformance tests . 28
5 Testing for compliance with technical requirements . 28
5.1 Environmental conditions for testing . 28
5.2 Presentation of equipment for testing purposes . 28
5.3 Choice of model for testing . 28
6 Test methods for all aspects of the ES. 29
6.1 General . 29
6.1.1 General requirements . 29
6.2 Off-axis spurious radiation . 29
6.2.1 General . 29
6.2.2 Test method . 29
6.2.2.1 General . 29
6.2.2.2 Multi-carrier operation . 29
6.2.3 Measurements up to 1 000 MHz . 30
6.2.3.1 Test site . 30
6.2.3.2 Measuring receivers . 30
6.2.3.3 Procedure . 30
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5 Draft ETSI EN 303 699 V1.2.0 (2026-07)
6.2.4 Measurements above 1 000 MHz . 31
6.2.4.1 General . 31
6.2.4.2 Identification of the significant frequencies of spurious radiation . 31
6.2.4.2.1 Test site. 31
6.2.4.2.2 Procedure . 31
6.2.4.3 Measurement of radiated power levels of identified spurious radiation . 32
6.2.4.3.1 Test site. 32
6.2.4.3.2 Procedure . 32
6.2.4.4 Measurement of conducted spurious radiation at the antenna flange . 33
6.2.4.4.1 Test site. 33
6.2.4.4.2 Procedure . 34
6.3 On-axis spurious radiation . 34
6.3.1 Test method . 34
6.3.1.1 General . 34
6.3.1.2 Test site . 34
6.3.1.3 Method of measurement . 34
6.3.1.3.1 General . 34
6.3.1.3.2 Method of measurement at the antenna flange . 35
6.3.1.3.3 Method of measurement for an EUT with antenna . 37
6.4 Void . 38
6.5 Carrier suppression . 38
6.5.1 General . 38
6.5.2 Test method . 38
6.6 Antenna pointing . 38
6.6.1 General . 38
6.6.2 Test method . 39
6.7 Polarization angle alignment capability . 39
6.7.1 General . 39
6.7.2 Test site . 40
6.7.3 Procedure . 40
6.8 Cessation of emissions of the ES . 41
6.8.1 General . 41
6.8.2 Test Method . 41
6.8.2.1 Required documentation . 41
6.8.2.2 Cessation of emissions from the "Transmission enabled" state . 41
6.8.2.3 Cessation of emission from the "Transmission disabled" state . 41
6.8.2.4 Cessation of emission from the "Initial Phase" state . 42
6.8.2.4.1 EUTs transmitting initial bursts . 42
6.8.2.4.2 EUTs not transmitting initial bursts . 42
6.8.2.5 "Single action" means of cessation of emissions. 42
6.8.2.6 Fault conditions . 43
6.9 Control and monitoring functions . 43
6.9.1 General . 43
6.9.2 Test arrangement . 43
6.9.3 Processor monitoring- Test method . 44
6.9.4 Transmit subsystem monitoring-Test method . 44
6.9.5 Power-on/Reset-Test method . 44
6.9.6 Control Channel and Response Channel -Test method . 45
6.9.7 Network Control commands-Test method . 45
6.9.8 Initial burst transmission-Test method . 47
6.9.9 Inhibition of transmission-Test method . 47
6.10 Receive EUT antenna off-axis gain pattern . 47
6.10.0 General . 47
6.10.1 Test method . 47
6.10.1.1 Test site . 47
6.10.1.2 Method of measurement . 48
6.10.1.3 Computation . 48
6.11 Blocking performance . 48
6.11.1 General . 48
6.11.2 Test method . 49
6.12 Adjacent Signal Selectivity . 50
6.12.1 Test method . 50
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6 Draft ETSI EN 303 699 V1.2.0 (2026-07)
6.13 Image frequency rejection . 51
Annex A (normative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 52
Annex B (informative): Linear Polarization Alignment Error Calculation . 55
Annex C (normative): Radiated measurement . 56
C.1 Test sites and general arrangements for measurements involving the use of radiated fields . 56
C.1.1 General . 56
C.1.2 Anechoic Chamber . 56
C.1.3 Anechoic Chamber with a conductive ground plane . 57
C.1.4 Open Area Test Site (OATS) . 58
C.1.5 Minimum requirements for test sites for measurements above 18 GHz . 59
C.1.6 Test antenna . 59
C.1.7 Substitution antenna . 60
C.1.8 Measuring antenna . 60
C.2 Guidance on the use of radiation test sites . 60
C.2.1 General . 60
C.2.2 Verification of the test site . 60
C.2.3 Preparation of the EUT . 60
C.2.4 Power supplies to the EUT . 60
C.2.5 Range length . 61
C.2.6 Site preparation . 61
C.3 Coupling of signals . 62
C.3.1 General . 62
C.4 Standard test methods . 62
C.4.1 General . 62
C.4.2 Calibrated setup . 62
C.4.3 Substitution method . 63
Annex D (normative): Conducted measurements . 64
Annex E (informative): RF Cables . 65
Annex F (informative): RF Waveguides . 66
Annex G (informative): Measurement equipment . 67
G.1 Maximum measurement uncertainty . 67
G.2 Measuring receiver . 67
Annex H (informative): Bibliography . 69
Annex I (informative): Change history . 70
History . 71

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7 Draft ETSI EN 303 699 V1.2.0 (2026-07)
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Foreword
This draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee Satellite Earth
Stations and Systems (SES), and is now submitted for the combined Public Enquiry and Vote phase of the ETSI
Standardisation Request deliverable Approval Procedure (SRdAP).
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.1] to
provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation
of the laws of the Member States relating to the making available on the market of radio equipment and repealing
Directive 1999/5/EC [i.2].
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in table A.1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive and associated
EFTA regulations.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

ETSI
8 Draft ETSI EN 303 699 V1.2.0 (2026-07)
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
9 Draft ETSI EN 303 699 V1.2.0 (2026-07)
1 Scope
The present document specifies technical characteristics and methods for measurements for satellite communications
Earth Stations (ES) with the following characteristics:
• The ES is designed for stationary operation.
• The ES is operating as part of a satellite network (e.g. star, mesh or point to point) used for the distribution
and/or exchange of information.
• The transmit and receive frequencies are shown in Table 1.
Table 1: Frequency bands
Frequency Bands/frequencies
Transmit (Earth-to-space) 1 27,5 GHz to 29,1 GHz
Transmit (Earth-to-space) 2 29,5 GHz to 30,0 GHz
Receive (space-to-Earth) 17,3 GHz to 20,2 GHz

• The ES transmits within the frequency range from 27,5 GHz to 29,1 GHz and 29,5 GHz to 30,0 GHz, which
are bands allocated to the Fixed Satellite Services (FSS) (Earth-to-space) among other services.
• At the national level, terminals covered by the present document, might operate on a co-frequency basis, with
stations of other FSS networks / systems or with stations of other services. The present document does not
cover requirements for ensuring protection of such services.
• The ES receives within the range from 17,30 GHz to 20,20 GHz (FSS).
• The ES uses linear or circular polarization.
• The ES operates through non-geostationary satellites.
• The ES is designed for unattended operation and it does not address specifications or requirements for earth
stations operating as gateways or master earth station.
• The ES is controlled and monitored by a Network Control Facility (NCF). This function may be performed
centrally (e.g. for a network of ESs with a central hub) or it could be performed within the ES for autonomous
control. The NCF is outside the scope of the present document.
• The ES has one or more directive antennas that track satellites.
The present document may also be applicable to the frequency bands 30,0 GHz to 31,0 GHz (Earth-to-space) and
20,2 GHz to 21,2 GHz (space-to-Earth) subject to national regulation.
The present document applies to the ES including its ancillary equipment and its various telecommunication ports, and
w
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