SIST EN 300 487 V2.2.1:2025

HARMONISED EUROPEAN STANDARD
Satellite Earth Stations and Systems (SES);
Receive-Only Mobile Earth Stations (ROMES) providing data
communications operating in the 1,5 GHz frequency band;
Harmonised Standard for access to radio spectrum

2 ETSI EN 300 487 V2.2.1 (2024-12)

Reference
REN/SES-00412
Keywords
data, earth station, LMSS, MES, mobile, RO,
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 300 487 V2.2.1 (2024-12)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Test conditions . 8
4.1 Environment profile . 8
4.2 Test report . 9
4.3 Special Test Equipment (STE) . 9
4.4 Equipment Under Test (EUT) . 9
5 Receiver requirements . 9
5.1 Environmental conditions for testing . 9
5.2 Radiated emission requirements . 9
5.2.1 Purpose . 9
5.2.2 Specification . 9
5.2.3 Verification . 10
5.3 Receiver Adjacent Channel Selectivity requirements . 10
5.3.1 Purpose . 10
5.3.2 Technical requirements . 10
5.3.3 Conformance test . 10
5.4 Receiver Blocking Characteristics requirements . 11
5.4.1 Purpose . 11
5.4.2 Technical requirements . 11
5.4.3 Conformance test . 11
6 Method of Testing Receiver requirements . 11
6.1 Radiated emissions . 11
6.2 Receiver Adjacent Channel Selectivity . 11
6.2.1 General . 11
6.2.2 Test arrangement . 11
6.2.3 Test Procedures . 12
6.3 Receiver Blocking Characteristics . 12
6.3.1 General . 12
6.3.2 Test arrangement . 12
6.3.3 Test procedures . 12
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 14
Annex B (normative): RF emissions - test procedure . 15
B.1 Introduction . 15
B.2 Measuring apparatus. 15
B.3 Equipment Under Test (EUT) . 15
B.4 Special Test Equipment (STE) . 15
ETSI
4 ETSI EN 300 487 V2.2.1 (2024-12)
B.5 Measurement procedure . 15
Annex C: Void . 18
Annex D (informative): Applicability of parameters given in ETSI EG 203 336 . 19
Annex E (informative): Maximum measurement uncertainty . 23
Annex F (informative): Bibliography . 24
Annex G (informative): Change history . 25
History . 26

ETSI
5 ETSI EN 300 487 V2.2.1 (2024-12)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
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 the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Satellite Earth Stations
and Systems (SES).
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.
National transposition dates
Date of adoption of this EN: 19 December 2024
Date of latest announcement of this EN (doa): 31 March 2025
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 September 2025
Date of withdrawal of any conflicting National Standard (dow): 30 September 2026

ETSI
6 ETSI EN 300 487 V2.2.1 (2024-12)
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.
Introduction
The present document is intended to cover the provisions of Directive 2014/53/EU [i.2] (RE Directive) article 3.2 which
states that "….radio equipment shall be so constructed that it both effectively uses and supports the efficient use of radio
spectrum in order to avoid harmful interference".
Recital 10 of Directive 2014/53/EU [i.2] states that "in order to ensure that radio equipment uses the radio spectrum
effectively and supports the efficient use of radio spectrum, radio equipment should be constructed so that: in the case
of a transmitter, when the transmitter is properly installed, maintained and used for its intended purpose it generates
radio waves emissions that do not create harmful interference, while unwanted radio waves emissions generated by the
transmitter (e.g. in adjacent channels) with a potential negative impact on the goals of radio spectrum policy should be
limited to such a level that, according to the state of the art, harmful interference is avoided; and, in the case of a
receiver, it has a level of performance that allows it to operate as intended and protects it against the risk of harmful
interference, in particular from shared or adjacent channels, and, in so doing, supports improvements in the efficient
use of shared or adjacent channel".
Recital 11 of Directive 2014/53/EU [i.2] states that "although receivers do not themselves cause harmful interference,
reception capabilities are an increasingly important factor in ensuring the efficient use of radio spectrum by way of an
increased resilience of receivers against harmful interference and unwanted signals on the basis of the relevant
essential requirements of Union harmonisation legislation".
As a consequence, the present document includes receiving parameters aiming to maximize the efficient use of radio
spectrum.
ETSI
7 ETSI EN 300 487 V2.2.1 (2024-12)
1 Scope
The present document specifies technical characteristics and methods of measurement for Receive-Only Mobile Earth
Stations (ROMES) radio equipment operating under the Land Mobile Satellite Service (LMSS), in the frequency band
1 518 MHz to 1 559 MHz (space-to-earth band).
The ROMESs operate as part of a satellite system providing one-way data communications.
ROMESs could have several configurations, including:
• either Portable Equipment (PE) or Vehicle Installed Equipment (VIE);
• a number of modules including a display/control interface to the user.
NOTE: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU [i.2] is given in annex A.
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] ETSI ETS 300 133-5 ed.2 (11-1997): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Enhanced Radio MEssage System (ERMES); Part 5: Receiver conformance
specification".
2.2 Informative 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.
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 not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request
to the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of
Directive 2014/53/EU of the European Parliament and of the Council.
[i.2] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 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.
ETSI
8 ETSI EN 300 487 V2.2.1 (2024-12)
[i.3] ETSI EG 203 336 (V1.2.1): "Guide for the selection of technical parameters for the production of
Harmonised Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
bearer type: carrier with certain bandwidth, certain modulation type and using certain error coding rate
effective receive operating band: receive band within 1 518 MHz to 1 559 MHz where the tests associated with
table 3 are met
in-band signals: signals which are located in the operating band plus an offset of 10 MHz outside this operating band
operating frequency band: frequency range 1 518 MHz to 1 559 MHz
transition frequency: frequency which separates adjacent frequency ranges in a table of limits
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BW Bandwidth
CDMA Code Division Multiple Access
CW Continuous Wave
E /N Energy per bit to noise power spectral density ratio
b 0
EC European Commission
EFTA European Free Trade Association
EIRP Equivalent Isotropically Radiated Power
ETS European Telecommunication Standard
EUT Equipment Under Test
LMSS Land Mobile Satellite Service
LO Local Oscillator
LTE Long Term Evolution
PE Portable Equipment
QoS Quality of Service
RED Radio Equipment Directive
RF Radio Frequency
ROMES Receive-Only Mobile Earth Station
SNR Signal to Noise Ratio
STE Special Test Equipment
VIE Vehicle Installed Equipment
VSWR Voltage Standing Wave Ratio
4 Test conditions
4.1 Environment profile
The technical requirements of the present document apply under the environmental conditions described in clause 5.1.
ETSI
9 ETSI EN 300 487 V2.2.1 (2024-12)
4.2 Test report
The test report shall contain:
• the environmental parameters under which the tests were carried out;
• the results of the tests;
• all parameters and operational conditions;
• the value of the highest frequency conversion oscillator;
• measurement uncertainties.
4.3 Special Test Equipment (STE)
To enable the tests specified in the present document to be carried out, the use of STE, supplied by the manufacturer or
system provider, may be necessary. Since the STE will be specific for the particular equipment, it is not possible to
provide detailed specifications in the present document. However, the following baseline is provided:
• the STE shall enable the ROMES to tune to every channel in the operating frequency band, to enable spurious
emissions to be measured;
• if the connection of the STE affects any of the parameters specified in the present document then the effects
shall clearly be stated by the manufacturer.
4.4 Equipment Under Test (EUT)
The EUT shall include all units necessary for the intended operation.
5 Receiver requirements
5.1 Environmental conditions for testing
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be in accordance with its intended use. The equipment shall comply with all the technical
requirements of the present document at all times when operating within the boundary limits of the operational
environmental profile defined by its intended use.
Tests defined in the present document shall be carried out at representative points within the boundary limits of the
operational environmental profile defined by its intended use.
5.2 Radiated emission requirements
5.2.1 Purpose
To protect terrestrial and satellite radio services from emissions caused by ROMESs to which the present document
applies.
5.2.2 Specification
The radiated power from the equipment, including its antenna, shall not exceed the limits in table 1.
ETSI
10 ETSI EN 300 487 V2.2.1 (2024-12)
Table 1
Frequency range EIRP limit Measurement bandwidth
(MHz) (dBpW) (kHz)
(see note) (see note)
30,0 to 1 000,0 33 100
1 000,0 to 1 518,0 43 100
1 518,0 to 1 559,0 17 3
1 559,0 to 12 750,0 43 100
12 750,0 to 21 200,0 48 100
21 200,0 to 40 000,0 60 100
NOTE: The lower limits shall apply at the transition frequency.

5.2.3 Verification
The equipment shall be tested according to the test procedure given in annex B. The upper frequency to which tests
th
shall be performed shall be at least the 10 harmonic of the highest frequency conversion oscillator or ten times the
highest operational frequency, whichever is greater.
5.3 Receiver Adjacent Channel Selectivity requirements
5.3.1 Purpose
To enable reception of a wanted signal in the presence of o
...

SLOVENSKI STANDARD
01-marec-2025
Satelitske zemeljske postaje in sistemi (SES) - Sprejemne mobilne zemeljske
postaje (ROMES), ki zagotavljajo podatkovne komunikacije in delujejo v
frekvenčnem pasu 1,5 GHz - Harmonizirani standard za dostop do radijskega
spektra
Satellite Earth Stations and Systems (SES) - Receive-Only Mobile Earth Stations
(ROMES) providing data communications operating in the 1,5 GHz frequency band -
Harmonised Standard for access to radio spectrum
Ta slovenski standard je istoveten z: ETSI EN 300 487 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);
Receive-Only Mobile Earth Stations (ROMES) providing data
communications operating in the 1,5 GHz frequency band;
Harmonised Standard for access to radio spectrum

2 ETSI EN 300 487 V2.2.1 (2024-12)

Reference
REN/SES-00412
Keywords
data, earth station, LMSS, MES, mobile, RO,
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 300 487 V2.2.1 (2024-12)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 8
3.3 Abbreviations . 8
4 Test conditions . 8
4.1 Environment profile . 8
4.2 Test report . 9
4.3 Special Test Equipment (STE) . 9
4.4 Equipment Under Test (EUT) . 9
5 Receiver requirements . 9
5.1 Environmental conditions for testing . 9
5.2 Radiated emission requirements . 9
5.2.1 Purpose . 9
5.2.2 Specification . 9
5.2.3 Verification . 10
5.3 Receiver Adjacent Channel Selectivity requirements . 10
5.3.1 Purpose . 10
5.3.2 Technical requirements . 10
5.3.3 Conformance test . 10
5.4 Receiver Blocking Characteristics requirements . 11
5.4.1 Purpose . 11
5.4.2 Technical requirements . 11
5.4.3 Conformance test . 11
6 Method of Testing Receiver requirements . 11
6.1 Radiated emissions . 11
6.2 Receiver Adjacent Channel Selectivity . 11
6.2.1 General . 11
6.2.2 Test arrangement . 11
6.2.3 Test Procedures . 12
6.3 Receiver Blocking Characteristics . 12
6.3.1 General . 12
6.3.2 Test arrangement . 12
6.3.3 Test procedures . 12
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 14
Annex B (normative): RF emissions - test procedure . 15
B.1 Introduction . 15
B.2 Measuring apparatus. 15
B.3 Equipment Under Test (EUT) . 15
B.4 Special Test Equipment (STE) . 15
ETSI
4 ETSI EN 300 487 V2.2.1 (2024-12)
B.5 Measurement procedure . 15
Annex C: Void . 18
Annex D (informative): Applicability of parameters given in ETSI EG 203 336 . 19
Annex E (informative): Maximum measurement uncertainty . 23
Annex F (informative): Bibliography . 24
Annex G (informative): Change history . 25
History . 26

ETSI
5 ETSI EN 300 487 V2.2.1 (2024-12)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
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 the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Satellite Earth Stations
and Systems (SES).
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.
National transposition dates
Date of adoption of this EN: 19 December 2024
Date of latest announcement of this EN (doa): 31 March 2025
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 September 2025
Date of withdrawal of any conflicting National Standard (dow): 30 September 2026

ETSI
6 ETSI EN 300 487 V2.2.1 (2024-12)
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.
Introduction
The present document is intended to cover the provisions of Directive 2014/53/EU [i.2] (RE Directive) article 3.2 which
states that "….radio equipment shall be so constructed that it both effectively uses and supports the efficient use of radio
spectrum in order to avoid harmful interference".
Recital 10 of Directive 2014/53/EU [i.2] states that "in order to ensure that radio equipment uses the radio spectrum
effectively and supports the efficient use of radio spectrum, radio equipment should be constructed so that: in the case
of a transmitter, when the transmitter is properly installed, maintained and used for its intended purpose it generates
radio waves emissions that do not create harmful interference, while unwanted radio waves emissions generated by the
transmitter (e.g. in adjacent channels) with a potential negative impact on the goals of radio spectrum policy should be
limited to such a level that, according to the state of the art, harmful interference is avoided; and, in the case of a
receiver, it has a level of performance that allows it to operate as intended and protects it against the risk of harmful
interference, in particular from shared or adjacent channels, and, in so doing, supports improvements in the efficient
use of shared or adjacent channel".
Recital 11 of Directive 2014/53/EU [i.2] states that "although receivers do not themselves cause harmful interference,
reception capabilities are an increasingly important factor in ensuring the efficient use of radio spectrum by way of an
increased resilience of receivers against harmful interference and unwanted signals on the basis of the relevant
essential requirements of Union harmonisation legislation".
As a consequence, the present document includes receiving parameters aiming to maximize the efficient use of radio
spectrum.
ETSI
7 ETSI EN 300 487 V2.2.1 (2024-12)
1 Scope
The present document specifies technical characteristics and methods of measurement for Receive-Only Mobile Earth
Stations (ROMES) radio equipment operating under the Land Mobile Satellite Service (LMSS), in the frequency band
1 518 MHz to 1 559 MHz (space-to-earth band).
The ROMESs operate as part of a satellite system providing one-way data communications.
ROMESs could have several configurations, including:
• either Portable Equipment (PE) or Vehicle Installed Equipment (VIE);
• a number of modules including a display/control interface to the user.
NOTE: The relationship between the present document and essential requirements of article 3.2 of
Directive 2014/53/EU [i.2] is given in annex A.
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] ETSI ETS 300 133-5 ed.2 (11-1997): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Enhanced Radio MEssage System (ERMES); Part 5: Receiver conformance
specification".
2.2 Informative 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.
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 not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request
to the European Committee for Electrotechnical Standardisation and to the European
Telecommunications Standards Institute as regards radio equipment in support of
Directive 2014/53/EU of the European Parliament and of the Council.
[i.2] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 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.
ETSI
8 ETSI EN 300 487 V2.2.1 (2024-12)
[i.3] ETSI EG 203 336 (V1.2.1): "Guide for the selection of technical parameters for the production of
Harmonised Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
bearer type: carrier with certain bandwidth, certain modulation type and using certain error coding rate
effective receive operating band: receive band within 1 518 MHz to 1 559 MHz where the tests associated with
table 3 are met
in-band signals: signals which are located in the operating band plus an offset of 10 MHz outside this operating band
operating frequency band: frequency range 1 518 MHz to 1 559 MHz
transition frequency: frequency which separates adjacent frequency ranges in a table of limits
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BW Bandwidth
CDMA Code Division Multiple Access
CW Continuous Wave
E /N Energy per bit to noise power spectral density ratio
b 0
EC European Commission
EFTA European Free Trade Association
EIRP Equivalent Isotropically Radiated Power
ETS European Telecommunication Standard
EUT Equipment Under Test
LMSS Land Mobile Satellite Service
LO Local Oscillator
LTE Long Term Evolution
PE Portable Equipment
QoS Quality of Service
RED Radio Equipment Directive
RF Radio Frequency
ROMES Receive-Only Mobile Earth Station
SNR Signal to Noise Ratio
STE Special Test Equipment
VIE Vehicle Installed Equipment
VSWR Voltage Standing Wave Ratio
4 Test conditions
4.1 Environment profile
The technical requirements of the present document apply under the environmental conditions described in clause 5.1.
ETSI
9 ETSI EN 300 487 V2.2.1 (2024-12)
4.2 Test report
The test report shall contain:
• the environmental parameters under which the tests were carried out;
• the results of the tests;
• all parameters and operational conditions;
• the value of the highest frequency conversion oscillator;
• measurement uncertainties.
4.3 Special Test Equipment (STE)
To enable the tests specified in the present document to be carried out, the use of STE, supplied by the manufacturer or
system provider, may be necessary. Since the STE will be specific for the particular equipment, it is not possible to
provide detailed specifications in the present document. However, the following baseline is provided:
• the STE shall enable the ROMES to tune to every channel in the operating frequency band, to enable spurious
emissions to be measured;
• if the connection of the STE affects any of the parameters specified in the present document then the effects
shall clearly be stated by the manufacturer.
4.4 Equipment Under Test (EUT)
The EUT shall include all units necessary for the intended operation.
5 Receiver requirements
5.1 Environmental conditions for testing
The technical requirements of the present document apply under the environmental profile for operation of the
equipment, which shall be in accordance with its intended use. The equipment shall comply with all the technical
requirements of the present document at all times when operating within the boundary limits of the operational
environmental profile defined by its intended use.
Tests defined in the present document shall be carried out at representative points within the boundary limits of the
operational environmental profile defined by its intended use.
5.2 Radiated emission requirements
5.2.1 Purpose
To protect terrestrial and satellite radio services from emissions caused by ROMESs to which the present document
applies.
5.2.2 Specification
The radiated power from the equipment, including its antenna, shall not exceed the limits in table 1.
ETSI
10 ETSI EN 300 487 V2.2.1 (2024-12)
Table 1
Frequency range EIRP limit Measurement bandwidth
(MHz) (dBpW) (kHz)
(see note) (see note)
30,0 to 1 000,0 33 100
1 000,0 to 1 518,0 43 100
1 518,0 to 1 559,0 17 3
1 559,0 to 12 750,0 43 100
12 750,0 to 21 200,0 48 100
21 200,0 to 40 000,0 60 100
NOTE: The lower limits shall apply at the transition frequency.

5.2.3 Verification
The equipment sha
...