oSIST prEN 303 363-2 V1.0.0:2023
(Main)Air Traffic Control Surveillance Radar Sensors - Secondary Surveillance Radar (SSR) - Harmonised Standard for access to radio spectrum - Part 2: Far Field Monitor (FFM)
Air Traffic Control Surveillance Radar Sensors - Secondary Surveillance Radar (SSR) - Harmonised Standard for access to radio spectrum - Part 2: Far Field Monitor (FFM)
DEN/ERM-TGAERO-30-2
Radarski senzorji za nadzor zračnega prometa - Sekundarni nadzorni radar (SSR) - Harmonizirani standard za dostop do radijskega spektra - 2. del: Antenski nadzorni sistem (FFM)
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Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
HARMONISED EUROPEAN STANDARD
Air Traffic Control Surveillance Radar Sensors;
Secondary Surveillance Radar (SSR);
Harmonised Standard for access to radio spectrum;
Part 2: Far Field Monitor (FFM)
---------------------- Page: 1 ----------------------
2 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
Reference
DEN/ERM-TGAERO-30-2
Keywords
aeronautical, harmonised standard, radar, radio
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:
https://www.etsi.org/standards-search
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 at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
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 2023.
All rights reserved.
ETSI
---------------------- Page: 2 ----------------------
3 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 7
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 12
3.3 Abbreviations . 12
4 Technical requirements specifications . 13
4.1 Environmental profile . 13
4.2 Conformance requirements . 13
4.2.1 Transmitter requirements . 13
4.2.1.1 Maximum frequency Deviation . 13
4.2.1.1.1 Definition. 13
4.2.1.1.2 Limits . 13
4.2.1.1.3 Conformance . 13
4.2.1.2 Transmitter power . 14
4.2.1.2.1 Definition. 14
4.2.1.2.2 Limits . 14
4.2.1.2.3 Conformance . 14
4.2.1.3 Spectrum mask . 14
4.2.1.3.1 Definition. 14
4.2.1.3.2 Limits . 14
4.2.1.3.3 Conformance . 14
4.2.1.4 Emissions in idle mode . 14
4.2.1.4.1 Definition. 14
4.2.1.4.2 Limits . 14
4.2.1.4.3 Conformance . 15
4.2.1.5 Transmitted Waveform . 15
4.2.1.5.1 Definition. 15
4.2.1.5.2 Limits . 15
4.2.1.5.3 Conformance . 15
4.2.2 Receiver requirements . 15
4.2.2.1 Receiver sensitivity and dynamic range . 15
4.2.2.1.1 Definition. 15
4.2.2.1.2 Limits . 15
4.2.2.1.3 Conformance . 16
4.2.2.2 Receiver selectivity . 16
4.2.2.2.1 Definition. 16
4.2.2.2.2 Limits . 16
4.2.2.2.3 Conformance . 16
4.2.2.3 Receiver immunity to interference . 16
4.2.2.3.1 Definition. 16
4.2.2.3.2 Limits . 16
4.2.2.3.3 Conformance . 17
4.2.2.4 FFM unwanted replies. 17
4.2.2.4.1 Definition. 17
4.2.2.4.2 Limits . 17
4.2.2.4.3 Conformance . 18
4.2.2.5 FFM SLS Effectiveness . 18
ETSI
---------------------- Page: 3 ----------------------
4 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
4.2.2.5.1 Definition. 18
4.2.2.5.2 Limits . 18
4.2.2.5.3 Conformance . 18
4.2.2.6 Receiver RF intermodulation response rejection . 18
4.2.2.6.1 Definition. 18
4.2.2.6.2 Limits . 18
4.2.2.6.3 Conformance . 18
5 Testing for Compliance with technical requirements . 19
5.1 General Requirements . 19
5.1.1 Standard operation mode for testing . 19
5.2 Environmental conditions for testing . 19
5.2.1 Introduction. 19
5.2.2 Temperature and humidity . 19
5.2.3 Power supply . 19
5.3 Test specifications . 20
5.3.1 Transmitter related tests . 20
5.3.1.1 Maximum Frequency Deviation . 20
5.3.1.1.1 Test conditions . 20
5.3.1.1.2 Procedure . 20
5.3.1.2 Transmitter power . 20
5.3.1.2.1 Test conditions . 20
5.3.1.2.2 Procedure . 20
5.3.1.3 Spectrum mask . 20
5.3.1.3.1 Test conditions . 20
5.3.1.3.2 Procedure . 21
5.3.1.4 Emissions in idle mode . 21
5.3.1.4.1 Test conditions . 21
5.3.1.4.2 Procedure . 21
5.3.1.5 Transmitted Waveform . 21
5.3.1.5.1 Test conditions . 21
5.3.1.5.2 Procedure . 22
5.3.2 Receiver related tests . 22
5.3.2.1 Receiver sensitivity . 22
5.3.2.1.1 Test conditions . 22
5.3.2.1.2 Procedure . 22
5.3.2.2 Receiver dynamic range . 22
5.3.2.2.1 Test conditions . 22
5.3.2.2.2 Procedure . 22
5.3.2.3 Receiver selectivity . 22
5.3.2.3.1 Test conditions . 22
5.3.2.3.2 Procedure . 23
5.3.2.4 Receiver immunity to interference . 23
5.3.2.4.1 Test conditions . 23
5.3.2.4.2 Procedure . 23
5.3.2.5 FFM unwanted replies. 25
5.3.2.5.1 Test conditions . 25
5.3.2.5.2 Procedure . 25
5.3.2.6 FFM SLS Effectiveness . 25
5.3.2.6.1 Test conditions . 25
5.3.2.6.2 Procedure . 26
5.3.2.7 Receiver RF intermodulation response rejection . 26
5.3.2.7.1 Test conditions . 26
5.3.2.7.2 Procedure . 26
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 28
Annex B (normative): Measurement setups . 30
B.1 Setup 1 . 30
B.2 Setup 2 . 30
ETSI
---------------------- Page: 4 ----------------------
5 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
B.3 Setup 3 . 31
B.4 Setup 4 . 32
B.5 Setup 5 . 32
B.6 Setup 6 . 33
Annex C (normative): FFM test equipment characteristics . 34
Annex D (informative): Reference Waveforms . 35
Annex E (informative): Checklist . 37
Annex F (informative): Maximum Measurement Uncertainty . 39
History . 40
ETSI
---------------------- Page: 5 ----------------------
6 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
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 Web server (https://ipr.etsi.org/).
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™ and LTE™ 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 draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM), and is now submitted for the combined Public Enquiry and Vote
phase of the ETSI standards EN Approval Procedure.
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.2] 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.1].
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.
The present document is part 2 of a multi-part deliverable covering ATC Secondary Surveillance Radar systems for
civil air navigation operating in the frequencies 1 030 MHz and 1 090 MHz, as identified below:
Part 1: "SSR Interrogator";
Part 2: "Far Field Monitor (FFM)".
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
---------------------- Page: 6 ----------------------
7 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
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 SSR system provides ground-based surveillance of transponder fitted aircraft and, in addition, may allow data link
communication between ground stations and aircraft, where both are fitted with appropriate equipment.
Secondary Radar surveillance is exploited through two essential elements: the SSR interrogator, normally
ground-based, and the aircraft SSR transponder.
The Far Field Monitor (FFM) is a ground-installed device that is intended to monitor the uplink and/or downlink
performance of a Mode S interrogator system from a site located at a suitable distance from the radar interrogator (far
field).
By its fixed location, the Far Field Monitor provides a fixed geo-referenced position with respect to which the SSR
interrogator can keep aligned its azimuthal reference with the geographical north.
While a Far Field Monitor has many characteristics in common with a Mode S transponder, there are a number of
important differences required to allow monitoring and to ensure that FFM will not impact Air Traffic safety and have
only minimal impact on Radio Frequency Interference and SSR channel Loading.
An FFM interrogated by the SSR radar in Mode A, C, S and intermode formats, replies with matching Mode A, C, S
reply. The replies are evaluated by the SSR interrogator to ensure correct operation. In addition, the replies may contain
data about certain interrogation parameters as seen by the monitor.
As far as Mode S is concerned, it is assumed that the FFM can process interrogations in uplink format UF11, UF4 and
UF5 and can transmit the corresponding replies in downlink format DF11, DF4, DF20, DF5 and DF21.
As far as Intermode is concerned, it is assumed that the FFM having Mode-S capabilities will only reply to intermode
interrogations of type Mode A only all-call and Mode C only all-call. As far as intermode interrogations of type Mode
A/C/S all-call are concerned, the FFM will not reply to them. Table 1 sums up the FFM capabilities.
Table 1: FFM capabilities
Mode Interrogation processing Reply Transmission
Mode A Yes Yes
Mode C Yes Yes
Mode S Yes for at least UF11, UF4 and UF5 Yes for at least DF11, DF4, DF20, DF5 and DF21 replies
interrogations
Intermode Yes No in case of Mode A/C/S all interrogations (long P4)
ETSI
---------------------- Page: 7 ----------------------
8 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
1 Scope
The present document specifies technical characteristics and methods of measurements for the following equipment
used in ground-based ATC Secondary Surveillance Radar systems for civil air navigation:
Far Field Monitors (FFM) operating on the frequencies as indicated in Table 2.
Table 2: FFM operating frequencies
Mode Operating frequencies
FFM Receive 1 030 MHz
FFM Transmit 1 090 MHz
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.
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 specif
...
SLOVENSKI STANDARD
oSIST prEN 303 363-2 V1.0.0:2023
01-september-2023
Radarski senzorji za nadzor zračnega prometa - Sekundarni nadzorni radar (SSR) -
Harmonizirani standard za dostop do radijskega spektra - 2. del: Antenski
nadzorni sistem (FFM)
Air Traffic Control Surveillance Radar Sensors - Secondary Surveillance Radar (SSR) -
Harmonised Standard for access to radio spectrum - Part 2: Far Field Monitor (FFM)
Ta slovenski standard je istoveten z: ETSI EN 303 363-2 V1.0.0 (2023-06)
ICS:
03.220.50 Zračni transport Air transport
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
oSIST prEN 303 363-2 V1.0.0:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN 303 363-2 V1.0.0:2023
---------------------- Page: 2 ----------------------
oSIST prEN 303 363-2 V1.0.0:2023
Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
HARMONISED EUROPEAN STANDARD
Air Traffic Control Surveillance Radar Sensors;
Secondary Surveillance Radar (SSR);
Harmonised Standard for access to radio spectrum;
Part 2: Far Field Monitor (FFM)
---------------------- Page: 3 ----------------------
oSIST prEN 303 363-2 V1.0.0:2023
2 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
Reference
DEN/ERM-TGAERO-30-2
Keywords
aeronautical, harmonised standard, radar, radio
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:
https://www.etsi.org/standards-search
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 at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
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 2023.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
oSIST prEN 303 363-2 V1.0.0:2023
3 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 7
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 12
3.3 Abbreviations . 12
4 Technical requirements specifications . 13
4.1 Environmental profile . 13
4.2 Conformance requirements . 13
4.2.1 Transmitter requirements . 13
4.2.1.1 Maximum frequency Deviation . 13
4.2.1.1.1 Definition. 13
4.2.1.1.2 Limits . 13
4.2.1.1.3 Conformance . 13
4.2.1.2 Transmitter power . 14
4.2.1.2.1 Definition. 14
4.2.1.2.2 Limits . 14
4.2.1.2.3 Conformance . 14
4.2.1.3 Spectrum mask . 14
4.2.1.3.1 Definition. 14
4.2.1.3.2 Limits . 14
4.2.1.3.3 Conformance . 14
4.2.1.4 Emissions in idle mode . 14
4.2.1.4.1 Definition. 14
4.2.1.4.2 Limits . 14
4.2.1.4.3 Conformance . 15
4.2.1.5 Transmitted Waveform . 15
4.2.1.5.1 Definition. 15
4.2.1.5.2 Limits . 15
4.2.1.5.3 Conformance . 15
4.2.2 Receiver requirements . 15
4.2.2.1 Receiver sensitivity and dynamic range . 15
4.2.2.1.1 Definition. 15
4.2.2.1.2 Limits . 15
4.2.2.1.3 Conformance . 16
4.2.2.2 Receiver selectivity . 16
4.2.2.2.1 Definition. 16
4.2.2.2.2 Limits . 16
4.2.2.2.3 Conformance . 16
4.2.2.3 Receiver immunity to interference . 16
4.2.2.3.1 Definition. 16
4.2.2.3.2 Limits . 16
4.2.2.3.3 Conformance . 17
4.2.2.4 FFM unwanted replies. 17
4.2.2.4.1 Definition. 17
4.2.2.4.2 Limits . 17
4.2.2.4.3 Conformance . 18
4.2.2.5 FFM SLS Effectiveness . 18
ETSI
---------------------- Page: 5 ----------------------
oSIST prEN 303 363-2 V1.0.0:2023
4 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
4.2.2.5.1 Definition. 18
4.2.2.5.2 Limits . 18
4.2.2.5.3 Conformance . 18
4.2.2.6 Receiver RF intermodulation response rejection . 18
4.2.2.6.1 Definition. 18
4.2.2.6.2 Limits . 18
4.2.2.6.3 Conformance . 18
5 Testing for Compliance with technical requirements . 19
5.1 General Requirements . 19
5.1.1 Standard operation mode for testing . 19
5.2 Environmental conditions for testing . 19
5.2.1 Introduction. 19
5.2.2 Temperature and humidity . 19
5.2.3 Power supply . 19
5.3 Test specifications . 20
5.3.1 Transmitter related tests . 20
5.3.1.1 Maximum Frequency Deviation . 20
5.3.1.1.1 Test conditions . 20
5.3.1.1.2 Procedure . 20
5.3.1.2 Transmitter power . 20
5.3.1.2.1 Test conditions . 20
5.3.1.2.2 Procedure . 20
5.3.1.3 Spectrum mask . 20
5.3.1.3.1 Test conditions . 20
5.3.1.3.2 Procedure . 21
5.3.1.4 Emissions in idle mode . 21
5.3.1.4.1 Test conditions . 21
5.3.1.4.2 Procedure . 21
5.3.1.5 Transmitted Waveform . 21
5.3.1.5.1 Test conditions . 21
5.3.1.5.2 Procedure . 22
5.3.2 Receiver related tests . 22
5.3.2.1 Receiver sensitivity . 22
5.3.2.1.1 Test conditions . 22
5.3.2.1.2 Procedure . 22
5.3.2.2 Receiver dynamic range . 22
5.3.2.2.1 Test conditions . 22
5.3.2.2.2 Procedure . 22
5.3.2.3 Receiver selectivity . 22
5.3.2.3.1 Test conditions . 22
5.3.2.3.2 Procedure . 23
5.3.2.4 Receiver immunity to interference . 23
5.3.2.4.1 Test conditions . 23
5.3.2.4.2 Procedure . 23
5.3.2.5 FFM unwanted replies. 25
5.3.2.5.1 Test conditions . 25
5.3.2.5.2 Procedure . 25
5.3.2.6 FFM SLS Effectiveness . 25
5.3.2.6.1 Test conditions . 25
5.3.2.6.2 Procedure . 26
5.3.2.7 Receiver RF intermodulation response rejection . 26
5.3.2.7.1 Test conditions . 26
5.3.2.7.2 Procedure . 26
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 28
Annex B (normative): Measurement setups . 30
B.1 Setup 1 . 30
B.2 Setup 2 . 30
ETSI
---------------------- Page: 6 ----------------------
oSIST prEN 303 363-2 V1.0.0:2023
5 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
B.3 Setup 3 . 31
B.4 Setup 4 . 32
B.5 Setup 5 . 32
B.6 Setup 6 . 33
Annex C (normative): FFM test equipment characteristics . 34
Annex D (informative): Reference Waveforms . 35
Annex E (informative): Checklist . 37
Annex F (informative): Maximum Measurement Uncertainty . 39
History . 40
ETSI
---------------------- Page: 7 ----------------------
oSIST prEN 303 363-2 V1.0.0:2023
6 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
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 Web server (https://ipr.etsi.org/).
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™ and LTE™ 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 draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM), and is now submitted for the combined Public Enquiry and Vote
phase of the ETSI standards EN Approval Procedure.
The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.2] 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.1].
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.
The present document is part 2 of a multi-part deliverable covering ATC Secondary Surveillance Radar systems for
civil air navigation operating in the frequencies 1 030 MHz and 1 090 MHz, as identified below:
Part 1: "SSR Interrogator";
Part 2: "Far Field Monitor (FFM)".
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
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oSIST prEN 303 363-2 V1.0.0:2023
7 Draft ETSI EN 303 363-2 V1.0.0 (2023-06)
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 SSR system provides ground-based surveillance of transponder fitted aircraft and, in addition, may allow data link
communication between ground stations and aircraft, where both are fitted with appropriate equipment.
Secondary Radar surveillance is exploited through two essential elements: the SSR interrogator, normally
ground-based, and the aircraft SSR transponder.
The Far Field Monitor (FFM) is a ground-installed device that is intended to monitor the uplink and/or downlink
performance of a Mode S interrogator system from a site located at a suitable distance from the radar interrogator (far
field).
By its fixed location, the Far Field Monitor provides a fixed geo-referenced position with respect to which the SSR
interrogator can keep aligned its azimuthal reference with the geographical north.
While a Far Field Monitor has many characteristics in common with a Mode S transponder, there are a number of
important differences required to allow monitoring and to ensure that FFM will not impact Air Traffic safety and have
only minimal impact on Radio Frequency Interference and SSR channel Loading.
An FFM interrogated by the SSR radar in Mode A, C, S and intermode formats, replies with matching Mode A, C, S
reply. The replies are evaluated by the SSR interrogator to ensure correct operation. In addition, the replies may contain
data about certain interrogation parameters as seen by the monitor.
As far as Mode S is concerned, it is assumed that the FFM can process interrogations in uplink format UF11, UF4 and
UF5 and can transmit the corresponding replies in downlink format DF11, DF4, DF20, DF5 and DF21.
As far as Intermode is concerned, it is assumed that the FFM having Mode-S capabilities will only reply to intermode
interrogations of type Mode A only all-call and Mode C only all-call. As far as intermode interrogations of type Mode
A/C/S all-call are concerned, the FFM will not reply to them. Table
...
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