Primary Surveillance Radar (PSR) - Harmonised Standard for access to radio spectrum - Part 2: Air Traffic Control (ATC) PSR sensors operating in the frequency band 2 700 MHz to 3 100 MHz (S band)

The present document specifies technical characteristics and methods of measurements for ground based monostatic
ATC primary surveillance radars with the following characteristics:
• operating in the 2 700 MHz to 3 100 MHz frequency range;
• transmitter output peak power up to 100 kW;
• the transceiver-antenna connection uses a hollow metallic rectangular waveguide of type WR284/WG10/R32
according to IEC 60153-2 [i.6] with a minimum length between the output of the power amplifier and the
input to the antenna of 2,886 m (20 times the wavelength of the waveguide cut-off frequency);
• the antenna rotates, is waveguide-based and passive;
• the transceiver output uses a RF circulator.
NOTE 1: Phased array ATC primary surveillance radars are not covered by the present document.
NOTE 2: 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.

Primarni nadzorni radar (PSR) - Harmonizirani standard za dostop do radijskega spektra - 2. del: Senzorji PSR za nadzor zračnega prometa (ATC), ki delujejo v frekvenčnem pasu od 2700 MHz do 3100 MHz (pas S)

General Information

Status
Published
Public Enquiry End Date
31-Jan-2021
Publication Date
02-Mar-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Mar-2021
Due Date
06-May-2021
Completion Date
03-Mar-2021

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ETSI EN 303 364-2 V1.1.1 (2021-02)
HARMONISED EUROPEAN STANDARD
Primary Surveillance Radar (PSR);
Harmonised Standard for access to radio spectrum;
Part 2: Air Traffic Control (ATC) PSR sensors operating in the
frequency band 2 700 MHz to 3 100 MHz (S band)
---------------------- Page: 1 ----------------------
2 ETSI EN 303 364-2 V1.1.1 (2021-02)
Reference
DEN/ERM-TGAERO-31-2
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 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
The present document can be downloaded from:
http://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
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 2021.
All rights reserved.

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.
ETSI
---------------------- Page: 2 ----------------------
3 ETSI EN 303 364-2 V1.1.1 (2021-02)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 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 .............................................................................................................................................................. 9

3.3 Abbreviations ..................................................................................................................................................... 9

4 Technical requirements specifications ................................................................................................... 10

4.1 Environmental profile ....................................................................................................................................... 10

4.2 Conformance requirements .............................................................................................................................. 10

4.2.1 Transmitter requirements ............................................................................................................................ 10

4.2.1.1 Maximum frequency deviation ............................................................................................................. 10

4.2.1.1.1 Definition......................................................................................................................................... 10

4.2.1.1.2 Limits .............................................................................................................................................. 10

4.2.1.1.3 Conformance ................................................................................................................................... 10

4.2.1.2 Transmitter power ................................................................................................................................. 10

4.2.1.2.1 Definition......................................................................................................................................... 10

4.2.1.2.2 Limits .............................................................................................................................................. 11

4.2.1.2.3 Conformance ................................................................................................................................... 11

4.2.1.3 Measured B bandwidth ...................................................................................................................... 11

-40

4.2.1.3.1 Definition......................................................................................................................................... 11

4.2.1.3.2 Limits .............................................................................................................................................. 11

4.2.1.3.3 Conformance ................................................................................................................................... 11

4.2.1.4 Unwanted emissions.............................................................................................................................. 11

4.2.1.4.1 General requirements ....................................................................................................................... 11

4.2.1.4.2 Emissions in the Out-of-Band domain ............................................................................................ 12

4.2.1.4.2.1 Definition ................................................................................................................................... 12

4.2.1.4.2.2 Limits ......................................................................................................................................... 12

4.2.1.4.2.3 Confor ma nce .............................................................................................................................. 12

4.2.1.4.3 Emissions in the spurious domain ................................................................................................... 12

4.2.1.4.3.1 Definition ................................................................................................................................... 12

4.2.1.4.3.2 Limits ......................................................................................................................................... 12

4.2.1.4.3.3 Confor ma nce .............................................................................................................................. 13

4.2.1.4.4 Stand-by mode emissions ................................................................................................................ 13

4.2.1.4.4.1 Definition ................................................................................................................................... 13

4.2.1.4.4.2 Limits ......................................................................................................................................... 13

4.2.1.4.4.3 Confor ma nce .............................................................................................................................. 13

4.2.2 Receiver requirements ................................................................................................................................ 13

4.2.2.1 General requirement .............................................................................................................................. 13

4.2.2.2 Noise Figure .......................................................................................................................................... 13

4.2.2.2.1 Definition......................................................................................................................................... 13

4.2.2.2.2 Limits .............................................................................................................................................. 14

4.2.2.2.3 Conformance ................................................................................................................................... 14

4.2.2.3 Receiver Compression Level ................................................................................................................ 14

4.2.2.3.1 Definition......................................................................................................................................... 14

4.2.2.3.2 Limits .............................................................................................................................................. 14

4.2.2.3.3 Conformance ................................................................................................................................... 14

4.2.2.4 Receiver selectivity ............................................................................................................................... 14

4.2.2.4.1 Definition......................................................................................................................................... 14

4.2.2.4.2 Limit ................................................................................................................................................ 15

ETSI
---------------------- Page: 3 ----------------------
4 ETSI EN 303 364-2 V1.1.1 (2021-02)

4.2.2.4.3 Conformance ................................................................................................................................... 15

5 Testing for compliance with technical requirements .............................................................................. 16

5.1 General requirements ....................................................................................................................................... 16

5.2 Environmental conditions for testing ............................................................................................................... 16

5.2.1 Test conditions ............................................................................................................................................ 16

5.2.2 Normal temperature and humidity .............................................................................................................. 16

5.2.3 Normal test power supply ........................................................................................................................... 16

5.3 Radio test suites ................................................................................................................................................ 16

5.3.1 Transmitter test specification ...................................................................................................................... 16

5.3.1.1 Maximum frequency deviation ............................................................................................................. 16

5.3.1.2 Transmitter power ................................................................................................................................. 16

5.3.1.3 Measured B bandwidth ...................................................................................................................... 17

-40

5.3.1.4 Measured B bandwidth ...................................................................................................................... 17

-20

5.3.1.5 Unwanted emissions.............................................................................................................................. 17

5.3.1.5.1 Emissions in the Out-of-Band domain ............................................................................................ 17

5.3.1.5.2 Emissions in the spurious domain ................................................................................................... 18

5.3.1.5.3 Stand-by mode emissions ................................................................................................................ 18

5.3.2 Receiver test specification .......................................................................................................................... 19

5.3.2.1 Noise Figure .......................................................................................................................................... 19

5.3.2.2 Receiver Compression Level ................................................................................................................ 19

5.3.2.3 Receiver selectivity ............................................................................................................................... 20

5.3.2.3.1 General setup ................................................................................................................................... 20

5.3.2.3.2 Disturbing Test Signals ................................................................................................................... 20

5.3.2.3.3 Measurement Procedure .................................................................................................................. 20

Annex A (informative): Relationship between the present document and the essential

requirements of Directive 2014/53/EU ......................................................... 21

Annex B (normative): Calculation of the B bandw idth ................................................................. 23

-40

Annex C (normative): Frequency deviation, transmitter power, B , B and Out-of-band

-40 -20

emissions measurement set-up ...................................................................... 25

Annex D (normative): Spurious and stand-by emissions measurement set-up .............................. 26

Annex E (normative): Noise Figure measurement set-up ................................................................ 28

Annex F (normative): Compression level and selectivity measurement set-up.............................. 30

Annex G (informative): Maximum Measurement Uncertainty .......................................................... 32

Annex H (informative): WR284/WG10 waveguide characteristics .................................................... 33

Annex I (informative): Checklist ......................................................................................................... 35

Annex J (informative): Bibliography ................................................................................................... 37

History .............................................................................................................................................................. 38

ETSI
---------------------- Page: 4 ----------------------
5 ETSI EN 303 364-2 V1.1.1 (2021-02)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information

pertaining to these essential IPRs, if any, is 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 IPR Policy, no investigation, 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.

Foreword

This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic

compatibility and Radio spectrum Matters (ERM).

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 ground based ATC Primary Surveillance Radar

(PSR), as identified below:

Part 1: "Air Traffic Control (ATC) PSR sensors operating in the frequency band 1 215 MHz to 1 400 MHz

(L band)";

Part 2: "Air Traffic Control (ATC) PSR sensors operating in the frequency band 2 700 MHz to 3 100 MHz

(S band)";

Part 3: "Air Traffic Control (ATC) PSR sensors operating in the frequency band 8 500 MHz to 10 000 MHz

(X band)".
National transposition dates
Date of adoption of this EN: 18 February 2021
Date of latest announcement of this EN (doa): 31 May 2021
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 November 2021
Date of withdrawal of any conflicting National Standard (dow): 30 November 2022
ETSI
---------------------- Page: 5 ----------------------
6 ETSI EN 303 364-2 V1.1.1 (2021-02)
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
---------------------- Page: 6 ----------------------
7 ETSI EN 303 364-2 V1.1.1 (2021-02)
1 Scope

The present document specifies technical characteristics and methods of measurements for ground based monostatic

ATC primary surveillance radars with the following characteristics:
• operating in the 2 700 MHz to 3 100 MHz frequency range;
• transmitter output peak power up to 100 kW;

• the transceiver-antenna connection uses a hollow metallic rectangular waveguide of type WR284/WG10/R32

according to IEC 60153-2 [i.6] with a minimum length between the output of the power amplifier and the

input to the antenna of 2,886 m (20 times the wavelength of the waveguide cut-off frequency);

• the antenna rotates, is waveguide-based and passive;
• the transceiver output uses a RF circulator.

NOTE 1: Phased array ATC primary surveillance radars are not covered by the present document.

NOTE 2: 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 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 at

https://docbox.etsi.org/Reference/.

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] ECC/Recommendation (02)05 (2012): "Unwanted emissions".

[2] ERC/Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".

[3] Recommendation ITU-R M.1177-4 (04/2011): "Techniques for measurement of unwanted

emissions of radar systems".
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] 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
---------------------- Page: 7 ----------------------
8 ETSI EN 303 364-2 V1.1.1 (2021-02)

[i.2] 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.3] ITU Radio Regulations (2020).

[i.4] Recommendation ITU-R SM.1541-6 (08/2015): "Unwanted emissions in the out-of-band domain".

[i.5] ETSI EG 203 336 (V1.2.1) (2020): "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".

[i.6] IEC 60153-2 (2016): "Hollow metallic waveguides - Part 2: Relevant specifications for ordinary

rectangular waveguides".

[i.7] Recommendation ITU-R SM.331-4 (07/1978): "Noise and sensitivity of receivers".

[i.8] Recommendation ITU-R SM.332-4 (07/1978): "Selectivity of receivers".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
active state: state which produces the authorized emission
auxiliary receiver: radar receiver not included in the transceiver

NOTE: For example an auxiliary receiver could be used for high beam antenna pattern.

dummy load: device connected to a waveguide or coaxial cable and matched to their impedance (typically 50 Ohms) to

absorb the RF energy propagating inside

equipment under test: device that is the subject of the specific test investigation being described

matched filter: receiver filter that matches the transmitted radar waveform, i.e. this is the filter that maximizes the

signal-to-noise ratio of the received pulse

necessary bandwidth: width of the frequency band which is just sufficient to ensure the transmission of information at

the rate and with the quality required under specified conditions for a given class of emission

NOTE 1: This definition is taken from ITU Radio Regulation [i.3].

NOTE 2: For Primary radars the necessary bandwidth BN is considered to be B-20 (20 dB bandwidth) as defined in

Recommendation ITU-R SM.1541-6 [i.4].

occupied bandwidth: width of a frequency band such that, below the lower and above the upper frequency limits, the

mean powers emitted are each equal to a specified percentage β/2 of the total mean power of a given emission

NOTE 1: This definition is taken from ITU Radio Regulation [i.3].

NOTE 2: Unless otherwise specified in an Recommendation ITU-R for the appropriate class of emission, the value

of (β/2) should be taken as 0,5 %.
operating frequencies: frequencies on which the radar is tuned to operate

operating mode: predefined configuration for a given service accessible to the operator of the radar system

NOTE 1: Several operating modes may be available.

NOTE 2: Changing operating mode might affect the radio characteristics of the radar system.

ETSI
---------------------- Page: 8 ----------------------
9 ETSI EN 303 364-2 V1.1.1 (2021-02)

peak envelope power: average power supplied to the antenna transmission line by a transmitter during one radio

frequency cycle at the crest of the modulation envelope taken under normal operating conditions

NOTE: This definition is taken from ITU Radio Regulation [i.3].

product configuration: hardware variant of the same typology of system under test (e.g. different power outputs,

magnetrons)
pulse duration: time between the 50 % amplitude (voltage) points

pulse fall time: time taken for the trailing edge of the pulse to decrease from 90 % to 10 % of the maximum amplitude

(voltage)

pulse rise time: time taken for the leading edge of the pulse to increase from 10 % to 90 % of the maximum amplitude

(voltage)
receiver output: output of the digital matched filter function

system coupler: directional waveguide coupler with forward and reverse port or only a forward port

NOTE: The system coupler is inserted in the waveguide run between the circulator and the antenna but not

directly located behind the antenna. Usually it is located very close behind the circulator.

unwanted emissions: spurious emissions and out-of-band emissions
NOTE: This definition is taken from ITU Radio Regulation [i.3].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
B -20 dB bandwidth below PEP of the spectrum of the transmitted waveform
-20
B -40 dB bandwidth below PEP of the spectrum of the transmitted waveform
-40
B Chirp bandwidth
B Necessary bandwidth
B 3 dB resolution bandwidth of transceiver
res
dB/dec dB per decade
dBpp dB with respect to peak power
D Detectability Factor
no spur
f Operating Frequency
f Intermediate Frequency
f Receiver operating Frequency
f Image Frequency
image
k Boltzmann's constant
f Local Oscillator Frequency
Pt Pulse power of transmission
RF Radio Frequency
S/N Signal-to-Noise ratio
t Time
T Pulse length (of individual chirp waveforms) in seconds
tp Pulse duration
tr Pulse rise time
tf Pulse fall time
T Temperature in Kelvin
λ Wavelength
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AC Alternating Current
ATC Air Traffic Control
ETSI
---------------------- Page: 9 ----------------------
10 ETSI EN 303 364-2 V1.1.1 (2021-02)
CW Continuous Wave
EIA Electronic Industries Alliance
IEC International Electrotechnical Commission
IF Intermediate Frequency
ITU International Telecommunication Union
na not available
NF Noise Factor
OoB Out-of-Band
PEP Peak Envelope Power
ppm parts per million
PSR Primary Surveillance Radar
RCSC Radio Components Standardization Committee
RF Radio Frequency
WG Waveguide
4 Technical requirements specifications
4.1 Environmental profile

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, but as a minimum, shall be that specified in the test

conditions contained in the present document. 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.
4.2 Conformance requirements
4.2.1 Transmitter requirements
4.2.1.1 Maximum frequency deviation
4.2.1.1.1 Definition

The maximum frequency deviation is the maximum allowed departure from the operating frequency.

4.2.1.1.2 Limits

The maximum frequency deviation of ATC radar systems at the defined operating frequency shall not exceed

1 250 ppm
...

SLOVENSKI STANDARD
SIST EN 303 364-2 V1.1.1:2021
01-april-2021
Primarni nadzorni radar (PSR) - Harmonizirani standard za dostop do radijskega
spektra - 2. del: Senzorji PSR za nadzor zračnega prometa (ATC), ki delujejo v
frekvenčnem pasu od 2700 MHz do 3100 MHz (pas S)

Primary Surveillance Radar (PSR) - Harmonised Standard for access to radio spectrum -

Part 2: Air Traffic Control (ATC) PSR sensors operating in the frequency band 2 700 MHz

to 3 100 MHz (S band)
Ta slovenski standard je istoveten z: ETSI EN 303 364-2 V1.1.1 (2021-02)
ICS:
03.220.50 Zračni transport Air transport
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
SIST EN 303 364-2 V1.1.1:2021 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 303 364-2 V1.1.1:2021
---------------------- Page: 2 ----------------------
SIST EN 303 364-2 V1.1.1:2021
ETSI EN 303 364-2 V1.1.1 (2021-02)
HARMONISED EUROPEAN STANDARD
Primary Surveillance Radar (PSR);
Harmonised Standard for access to radio spectrum;
Part 2: Air Traffic Control (ATC) PSR sensors operating in the
frequency band 2 700 MHz to 3 100 MHz (S band)
---------------------- Page: 3 ----------------------
SIST EN 303 364-2 V1.1.1:2021
2 ETSI EN 303 364-2 V1.1.1 (2021-02)
Reference
DEN/ERM-TGAERO-31-2
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 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
The present document can be downloaded from:
http://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
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 2021.
All rights reserved.

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.
ETSI
---------------------- Page: 4 ----------------------
SIST EN 303 364-2 V1.1.1:2021
3 ETSI EN 303 364-2 V1.1.1 (2021-02)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 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 .............................................................................................................................................................. 9

3.3 Abbreviations ..................................................................................................................................................... 9

4 Technical requirements specifications ................................................................................................... 10

4.1 Environmental profile ....................................................................................................................................... 10

4.2 Conformance requirements .............................................................................................................................. 10

4.2.1 Transmitter requirements ............................................................................................................................ 10

4.2.1.1 Maximum frequency deviation ............................................................................................................. 10

4.2.1.1.1 Definition......................................................................................................................................... 10

4.2.1.1.2 Limits .............................................................................................................................................. 10

4.2.1.1.3 Conformance ................................................................................................................................... 10

4.2.1.2 Transmitter power ................................................................................................................................. 10

4.2.1.2.1 Definition......................................................................................................................................... 10

4.2.1.2.2 Limits .............................................................................................................................................. 11

4.2.1.2.3 Conformance ................................................................................................................................... 11

4.2.1.3 Measured B bandwidth ...................................................................................................................... 11

-40

4.2.1.3.1 Definition......................................................................................................................................... 11

4.2.1.3.2 Limits .............................................................................................................................................. 11

4.2.1.3.3 Conformance ................................................................................................................................... 11

4.2.1.4 Unwanted emissions.............................................................................................................................. 11

4.2.1.4.1 General requirements ....................................................................................................................... 11

4.2.1.4.2 Emissions in the Out-of-Band domain ............................................................................................ 12

4.2.1.4.2.1 Definition ................................................................................................................................... 12

4.2.1.4.2.2 Limits ......................................................................................................................................... 12

4.2.1.4.2.3 Confor ma nce .............................................................................................................................. 12

4.2.1.4.3 Emissions in the spurious domain ................................................................................................... 12

4.2.1.4.3.1 Definition ................................................................................................................................... 12

4.2.1.4.3.2 Limits ......................................................................................................................................... 12

4.2.1.4.3.3 Confor ma nce .............................................................................................................................. 13

4.2.1.4.4 Stand-by mode emissions ................................................................................................................ 13

4.2.1.4.4.1 Definition ................................................................................................................................... 13

4.2.1.4.4.2 Limits ......................................................................................................................................... 13

4.2.1.4.4.3 Confor ma nce .............................................................................................................................. 13

4.2.2 Receiver requirements ................................................................................................................................ 13

4.2.2.1 General requirement .............................................................................................................................. 13

4.2.2.2 Noise Figure .......................................................................................................................................... 13

4.2.2.2.1 Definition......................................................................................................................................... 13

4.2.2.2.2 Limits .............................................................................................................................................. 14

4.2.2.2.3 Conformance ................................................................................................................................... 14

4.2.2.3 Receiver Compression Level ................................................................................................................ 14

4.2.2.3.1 Definition......................................................................................................................................... 14

4.2.2.3.2 Limits .............................................................................................................................................. 14

4.2.2.3.3 Conformance ................................................................................................................................... 14

4.2.2.4 Receiver selectivity ............................................................................................................................... 14

4.2.2.4.1 Definition......................................................................................................................................... 14

4.2.2.4.2 Limit ................................................................................................................................................ 15

ETSI
---------------------- Page: 5 ----------------------
SIST EN 303 364-2 V1.1.1:2021
4 ETSI EN 303 364-2 V1.1.1 (2021-02)

4.2.2.4.3 Conformance ................................................................................................................................... 15

5 Testing for compliance with technical requirements .............................................................................. 16

5.1 General requirements ....................................................................................................................................... 16

5.2 Environmental conditions for testing ............................................................................................................... 16

5.2.1 Test conditions ............................................................................................................................................ 16

5.2.2 Normal temperature and humidity .............................................................................................................. 16

5.2.3 Normal test power supply ........................................................................................................................... 16

5.3 Radio test suites ................................................................................................................................................ 16

5.3.1 Transmitter test specification ...................................................................................................................... 16

5.3.1.1 Maximum frequency deviation ............................................................................................................. 16

5.3.1.2 Transmitter power ................................................................................................................................. 16

5.3.1.3 Measured B bandwidth ...................................................................................................................... 17

-40

5.3.1.4 Measured B bandwidth ...................................................................................................................... 17

-20

5.3.1.5 Unwanted emissions.............................................................................................................................. 17

5.3.1.5.1 Emissions in the Out-of-Band domain ............................................................................................ 17

5.3.1.5.2 Emissions in the spurious domain ................................................................................................... 18

5.3.1.5.3 Stand-by mode emissions ................................................................................................................ 18

5.3.2 Receiver test specification .......................................................................................................................... 19

5.3.2.1 Noise Figure .......................................................................................................................................... 19

5.3.2.2 Receiver Compression Level ................................................................................................................ 19

5.3.2.3 Receiver selectivity ............................................................................................................................... 20

5.3.2.3.1 General setup ................................................................................................................................... 20

5.3.2.3.2 Disturbing Test Signals ................................................................................................................... 20

5.3.2.3.3 Measurement Procedure .................................................................................................................. 20

Annex A (informative): Relationship between the present document and the essential

requirements of Directive 2014/53/EU ......................................................... 21

Annex B (normative): Calculation of the B bandw idth ................................................................. 23

-40

Annex C (normative): Frequency deviation, transmitter power, B , B and Out-of-band

-40 -20

emissions measurement set-up ...................................................................... 25

Annex D (normative): Spurious and stand-by emissions measurement set-up .............................. 26

Annex E (normative): Noise Figure measurement set-up ................................................................ 28

Annex F (normative): Compression level and selectivity measurement set-up.............................. 30

Annex G (informative): Maximum Measurement Uncertainty .......................................................... 32

Annex H (informative): WR284/WG10 waveguide characteristics .................................................... 33

Annex I (informative): Checklist ......................................................................................................... 35

Annex J (informative): Bibliography ................................................................................................... 37

History .............................................................................................................................................................. 38

ETSI
---------------------- Page: 6 ----------------------
SIST EN 303 364-2 V1.1.1:2021
5 ETSI EN 303 364-2 V1.1.1 (2021-02)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information

pertaining to these essential IPRs, if any, is 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 IPR Policy, no investigation, 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.

Foreword

This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic

compatibility and Radio spectrum Matters (ERM).

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 ground based ATC Primary Surveillance Radar

(PSR), as identified below:

Part 1: "Air Traffic Control (ATC) PSR sensors operating in the frequency band 1 215 MHz to 1 400 MHz

(L band)";

Part 2: "Air Traffic Control (ATC) PSR sensors operating in the frequency band 2 700 MHz to 3 100 MHz

(S band)";

Part 3: "Air Traffic Control (ATC) PSR sensors operating in the frequency band 8 500 MHz to 10 000 MHz

(X band)".
National transposition dates
Date of adoption of this EN: 18 February 2021
Date of latest announcement of this EN (doa): 31 May 2021
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 November 2021
Date of withdrawal of any conflicting National Standard (dow): 30 November 2022
ETSI
---------------------- Page: 7 ----------------------
SIST EN 303 364-2 V1.1.1:2021
6 ETSI EN 303 364-2 V1.1.1 (2021-02)
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
---------------------- Page: 8 ----------------------
SIST EN 303 364-2 V1.1.1:2021
7 ETSI EN 303 364-2 V1.1.1 (2021-02)
1 Scope

The present document specifies technical characteristics and methods of measurements for ground based monostatic

ATC primary surveillance radars with the following characteristics:
• operating in the 2 700 MHz to 3 100 MHz frequency range;
• transmitter output peak power up to 100 kW;

• the transceiver-antenna connection uses a hollow metallic rectangular waveguide of type WR284/WG10/R32

according to IEC 60153-2 [i.6] with a minimum length between the output of the power amplifier and the

input to the antenna of 2,886 m (20 times the wavelength of the waveguide cut-off frequency);

• the antenna rotates, is waveguide-based and passive;
• the transceiver output uses a RF circulator.

NOTE 1: Phased array ATC primary surveillance radars are not covered by the present document.

NOTE 2: 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 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 at

https://docbox.etsi.org/Reference/.

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] ECC/Recommendation (02)05 (2012): "Unwanted emissions".

[2] ERC/Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".

[3] Recommendation ITU-R M.1177-4 (04/2011): "Techniques for measurement of unwanted

emissions of radar systems".
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] 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
---------------------- Page: 9 ----------------------
SIST EN 303 364-2 V1.1.1:2021
8 ETSI EN 303 364-2 V1.1.1 (2021-02)

[i.2] 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.3] ITU Radio Regulations (2020).

[i.4] Recommendation ITU-R SM.1541-6 (08/2015): "Unwanted emissions in the out-of-band domain".

[i.5] ETSI EG 203 336 (V1.2.1) (2020): "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".

[i.6] IEC 60153-2 (2016): "Hollow metallic waveguides - Part 2: Relevant specifications for ordinary

rectangular waveguides".

[i.7] Recommendation ITU-R SM.331-4 (07/1978): "Noise and sensitivity of receivers".

[i.8] Recommendation ITU-R SM.332-4 (07/1978): "Selectivity of receivers".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
active state: state which produces the authorized emission
auxiliary receiver: radar receiver not included in the transceiver

NOTE: For example an auxiliary receiver could be used for high beam antenna pattern.

dummy load: device connected to a waveguide or coaxial cable and matched to their impedance (typically 50 Ohms) to

absorb the RF energy propagating inside

equipment under test: device that is the subject of the specific test investigation being described

matched filter: receiver filter that matches the transmitted radar waveform, i.e. this is the filter that maximizes the

signal-to-noise ratio of the received pulse

necessary bandwidth: width of the frequency band which is just sufficient to ensure the transmission of information at

the rate and with the quality required under specified conditions for a given class of emission

NOTE 1: This definition is taken from ITU Radio Regulation [i.3].

NOTE 2: For Primary radars the necessary bandwidth BN is considered to be B-20 (20 dB bandwidth) as defined in

Recommendation ITU-R SM.1541-6 [i.4].

occupied bandwidth: width of a frequency band such that, below the lower and above the upper frequency limits, the

mean powers emitted are each equal to a specified percentage β/2 of the total mean power of a given emission

NOTE 1: This definition is taken from ITU Radio Regulation [i.3].

NOTE 2: Unless otherwise specified in an Recommendation ITU-R for the appropriate class of emission, the value

of (β/2) should be taken as 0,5 %.
operating frequencies: frequencies on which the radar is tuned to operate

operating mode: predefined configuration for a given service accessible to the operator of the radar system

NOTE 1: Several operating modes may be available.

NOTE 2: Changing operating mode might affect the radio characteristics of the radar system.

ETSI
---------------------- Page: 10 ----------------------
SIST EN 303 364-2 V1.1.1:2021
9 ETSI EN 303 364-2 V1.1.1 (2021-02)

peak envelope power: average power supplied to the antenna transmission line by a transmitter during one radio

frequency cycle at the crest of the modulation envelope taken under normal operating conditions

NOTE: This definition is taken from ITU Radio Regulation [i.3].

product configuration: hardware variant of the same typology of system under test (e.g. different power outputs,

magnetrons)
pulse duration: time between the 50 % amplitude (voltage) points

pulse fall time: time taken for the trailing edge of the pulse to decrease from 90 % to 10 % of the maximum amplitude

(voltage)

pulse rise time: time taken for the leading edge of the pulse to increase from 10 % to 90 % of the maximum amplitude

(voltage)
receiver output: output of the digital matched filter function

system coupler: directional waveguide coupler with forward and reverse port or only a forward port

NOTE: The system coupler is inserted in the waveguide run between the circulator and the antenna but not

directly located behind the antenna. Usually it is located very close behind the circulator.

unwanted emissions: spurious emissions and out-of-band emissions
NOTE: This definition is taken from ITU Radio Regulation [i.3].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
B -20 dB bandwidth below PEP of the spectrum of the transmitted waveform
-20
B -40 dB bandwidth below PEP of the spectrum of the transmitted waveform
-40
B Chirp bandwidth
B Necessary bandwidth
B 3 dB resolution bandwidth of transceiver
res
dB/dec dB per decade
dBpp dB with respect to peak power
D Detectability Factor
no spur
f Operating Frequency
f Intermediate Frequency
f Receiver operating Frequency
f Image Frequency
image
k Boltzmann's constant
f Local Oscillator Frequency
Pt Pulse power of transmission
RF Radio Frequency
S/N Signal-to-Noise ratio
t Time
T Pulse length (of individual chirp waveforms) in seconds
tp Pulse duration
tr Pulse rise time
tf Pulse fall time
T Temperature in Kelvin
λ Wavelength
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AC Alternating Current
ATC Air Traffic Control
ETSI
---------------------- Page: 11 ----------------------
SIST EN 303 364-2 V1.1.1:2021
10 ETSI EN 303 364-2 V1.1.1 (2021-02)
CW Continuou
...

Draft ETSI EN 303 364-2 V1.0.1 (2020-11)
HARMONISED EUROPEAN STANDARD
Primary Surveillance Radar (PSR);
Harmonised Standard for access to radio spectrum;
Part 2: Air Traffic Control (ATC) PSR sensors operating in the
frequency band 2 700 MHz to 3 100 MHz (S band)
---------------------- Page: 1 ----------------------
2 Draft ETSI EN 303 364-2 V1.0.1 (2020-11)
Reference
DEN/ERM-TGAERO-31-2
Keywords
aeronautical, harmonised standard, radar, radio
ETSI
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ETSI
---------------------- Page: 2 ----------------------
3 Draft ETSI EN 303 364-2 V1.0.1 (2020-11)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 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 .............................................................................................................................................................. 9

3.3 Abbreviations ..................................................................................................................................................... 9

4 Technical requirements specifications ................................................................................................... 10

4.1 Environmental profile ....................................................................................................................................... 10

4.2 Conformance requirements .............................................................................................................................. 10

4.2.1 Transmitter requirements ............................................................................................................................ 10

4.2.1.1 Maximum frequency deviation ............................................................................................................. 10

4.2.1.1.1 Definition......................................................................................................................................... 10

4.2.1.1.2 Limits .............................................................................................................................................. 10

4.2.1.1.3 Conformance ................................................................................................................................... 10

4.2.1.2 Transmitter power ................................................................................................................................. 10

4.2.1.2.1 Definition......................................................................................................................................... 10

4.2.1.2.2 Limits .............................................................................................................................................. 11

4.2.1.2.3 Conformance ................................................................................................................................... 11

4.2.1.3 Measured B bandwidth ...................................................................................................................... 11

-40

4.2.1.3.1 Definition......................................................................................................................................... 11

4.2.1.3.2 Limits .............................................................................................................................................. 11

4.2.1.3.3 Conformance ................................................................................................................................... 11

4.2.1.4 Unwanted emissions.............................................................................................................................. 11

4.2.1.4.1 General requirements ....................................................................................................................... 11

4.2.1.4.2 Emissions in the Out-of-Band domain ............................................................................................ 12

4.2.1.4.2.1 Definition ................................................................................................................................... 12

4.2.1.4.2.2 Limits ......................................................................................................................................... 12

4.2.1.4.2.3 Confor ma nce .............................................................................................................................. 12

4.2.1.4.3 Emissions in the spurious domain ................................................................................................... 12

4.2.1.4.3.1 Definition ................................................................................................................................... 12

4.2.1.4.3.2 Limits ......................................................................................................................................... 12

4.2.1.4.3.3 Confor ma nce .............................................................................................................................. 13

4.2.1.4.4 Stand-by mode emissions ................................................................................................................ 13

4.2.1.4.4.1 Definition ................................................................................................................................... 13

4.2.1.4.4.2 Limits ......................................................................................................................................... 13

4.2.1.4.4.3 Confor ma nce .............................................................................................................................. 13

4.2.2 Receiver requirements ................................................................................................................................ 13

4.2.2.1 General requirement .............................................................................................................................. 13

4.2.2.2 Noise Figure .......................................................................................................................................... 13

4.2.2.2.1 Definition......................................................................................................................................... 13

4.2.2.2.2 Limits .............................................................................................................................................. 14

4.2.2.2.3 Conformance ................................................................................................................................... 14

4.2.2.3 Receiver Compression Level ................................................................................................................ 14

4.2.2.3.1 Definition......................................................................................................................................... 14

4.2.2.3.2 Limits .............................................................................................................................................. 14

4.2.2.3.3 Conformance ................................................................................................................................... 14

4.2.2.4 Receiver selectivity ............................................................................................................................... 14

4.2.2.4.1 Definition......................................................................................................................................... 14

4.2.2.4.2 Limit ................................................................................................................................................ 15

ETSI
---------------------- Page: 3 ----------------------
4 Draft ETSI EN 303 364-2 V1.0.1 (2020-11)

4.2.2.4.3 Conformance ................................................................................................................................... 15

5 Testing for compliance with technical requirements .............................................................................. 16

5.1 General requirements ....................................................................................................................................... 16

5.2 Environmental conditions for testing ............................................................................................................... 16

5.2.1 Test conditions ............................................................................................................................................ 16

5.2.2 Normal temperature and humidity .............................................................................................................. 16

5.2.3 Normal test power supply ........................................................................................................................... 16

5.3 Radio test suites ................................................................................................................................................ 16

5.3.1 Transmitter test specification ...................................................................................................................... 16

5.3.1.1 Maximum frequency deviation ............................................................................................................. 16

5.3.1.2 Transmitter power ................................................................................................................................. 16

5.3.1.3 Measured B bandwidth ...................................................................................................................... 17

-40

5.3.1.4 Measured B bandwidth ...................................................................................................................... 17

-20

5.3.1.5 Unwanted emissions.............................................................................................................................. 17

5.3.1.5.1 Emissions in the Out-of-Band domain ............................................................................................ 17

5.3.1.5.2 Emissions in the spurious domain ................................................................................................... 18

5.3.1.5.3 Stand-by mode emissions ................................................................................................................ 18

5.3.2 Receiver test specification .......................................................................................................................... 19

5.3.2.1 Noise Figure .......................................................................................................................................... 19

5.3.2.2 Receiver Compression Level ................................................................................................................ 19

5.3.2.3 Receiver selectivity ............................................................................................................................... 20

5.3.2.3.1 General setup ................................................................................................................................... 20

5.3.2.3.2 Disturbing Test Signals ................................................................................................................... 20

5.3.2.3.3 Measurement Procedure .................................................................................................................. 20

Annex A (informative): Relationship between the present document and the essential

requirements of Directive 2014/53/EU ......................................................... 21

Annex B (normative): Calculation of the B bandw idth ................................................................. 23

-40

Annex C (normative): Frequency deviation, transmitter power, B , B and Out-of-band

-40 -20

emissions measurement set-up ...................................................................... 25

Annex D (normative): Spurious and stand-by emissions measurement set-up .............................. 26

Annex E (normative): Noise Figure measurement set-up ................................................................ 28

Annex F (normative): Compression level and selectivity measurement set-up.............................. 30

Annex G (informative): Maximum Measurement Uncertainty .......................................................... 32

Annex H (informative): WR284/WG10 waveguide characteristics .................................................... 33

Annex I (informative): Checklist ......................................................................................................... 35

Annex J (informative): Bibliography ................................................................................................... 37

History .............................................................................................................................................................. 38

ETSI
---------------------- Page: 4 ----------------------
5 Draft ETSI EN 303 364-2 V1.0.1 (2020-11)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information

pertaining to these essential IPRs, if any, is 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 IPR Policy, no investigation, 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.

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 ground based ATC Primary Surveillance Radars

(PSR), as identified below:

Part 1: "Air Traffic Control (ATC) PSR sensors operating in the frequency band 1 215 MHz to 1 400 MHz

(L band)";

Part 2: "Air Traffic Control (ATC) PSR sensors operating in the frequency band 2 700 MHz to 3 100 MHz

(S band)";

Part 3: "Air Traffic Control (ATC) PSR sensors operating in the frequency band 8 500 MHz to 10 000 MHz

(X band)".
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: 5 ----------------------
6 Draft ETSI EN 303 364-2 V1.0.1 (2020-11)
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
---------------------- Page: 6 ----------------------
7 Draft ETSI EN 303 364-2 V1.0.1 (2020-11)
1 Scope

The present document specifies technical characteristics and methods of measurements for ground based monostatic

ATC primary surveillance radars with the following characteristics:
• operating in the 2 700 MHz to 3 100 MHz frequency range;
• transmitter output peak power up to 100 kW;

• the transceiver-antenna connection uses a hollow metallic rectangular waveguide of type WR284/WG10/R32

according to IEC 60153-2 [i.6] with a minimum length between the output of the power amplifier and the

input to the antenna of 2,886 m (20 times the wavelength of the waveguide cut-off frequency);

• the antenna rotates, is waveguide-based and passive;
• the transceiver output uses a RF circulator.

NOTE 1: Phased array ATC primary surveillance radars are not covered by the present document.

NOTE 2: 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 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 at

https://docbox.etsi.org/Reference/.

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] ECC/Recommendation (02)05 (2012): "Unwanted emissions".

[2] ERC/Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".

[3] Recommendation ITU-R M.1177-4 (04/2011): "Techniques for measurement of unwanted

emissions of radar systems".
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] 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.
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[i.2] 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.3] ITU Radio Regulations (2020).

[i.4] Recommendation ITU-R SM.1541-6 (08/2015): "Unwanted emissions in the out-of-band domain".

[i.5] ETSI EG 203 336 (V1.2.1) (2020): "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".

[i.6] IEC 60153-2 (2016): "Hollow metallic waveguides - Part 2: Relevant specifications for ordinary

rectangular waveguides".

[i.7] Recommendation ITU-R SM.331-4 (07/1978): "Noise and sensitivity of receivers".

[i.8] Recommendation ITU-R SM.332-4 (07/1978): "Selectivity of receivers".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
active state: state which produces the authorized emission
auxiliary receiver: radar receiver not included in the transceiver

NOTE: For example an auxiliary receiver could be used for high beam antenna pattern.

dummy load: device connected to a waveguide or coaxial cable and matched to their impedance (typically 50 Ohms) to

absorb the RF energy propagating inside

equipment under test: device that is the subject of the specific test investigation being described

matched filter: receiver filter that matches the transmitted radar waveform, i.e. this is the filter that maximizes the

signal-to-noise ratio of the received pulse

necessary bandwidth: width of the frequency band which is just sufficient to ensure the transmission of information at

the rate and with the quality required under specified conditions for a given class of emission

NOTE 1: This definition is taken from ITU Radio Regulation [i.3].

NOTE 2: For Primary radars the necessary bandwidth BN is considered to be B-20 (20 dB bandwidth) as defined in

Recommendation ITU-R SM.1541-6 [i.4].

occupied bandwidth: width of a frequency band such that, below the lower and above the upper frequency limits, the

mean powers emitted are each equal to a specified percentage β/2 of the total mean power of a given emission

NOTE 1: This definition is taken from ITU Radio Regulation [i.3].

NOTE 2: Unless otherwise specified in an Recommendation ITU-R for the appropriate class of emission, the value

of ( β/2) should be taken as 0,5 %.
operating frequencies: frequencies on which the radar is tuned to operate

operating mode: predefined configuration for a given service accessible to the operator of the radar system

NOTE 1: Several operating modes may be available.

NOTE 2: Changing operating mode might affect the radio characteristics of the radar system.

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peak envelope power: average power supplied to the antenna transmission line by a transmitter during one radio

frequency cycle at the crest of the modulation envelope taken under normal operating conditions

NOTE: This definition is taken from ITU Radio Regulation [i.3].

product configuration: hardware variant of the same typology of system under test (e.g. different power outputs,

magnetrons)
pulse duration: time between the 50 % amplitude (voltage) points

pulse fall time: time taken for the trailing edge of the pulse to decrease from 90 % to 10 % of the maximum amplitude

(voltage)

pulse rise time: time taken for the leading edge of the pulse to increase from 10 % to 90 % of the maximum amplitude

(voltage)
receiver output: output of the digital matched filter function

system coupler: directional waveguide coupler with forward and reverse port or only a forward port

NOTE: The system coupler is inserted in the waveguide run between the circulator and the antenna but not

directly located behind the antenna. Usually it is located very close behind the circulator.

unwanted emissions: spurious emissions and out-of-band emissions
NOTE: This definition is taken from ITU Radio Regulation [i.3].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
B -20 dB bandwidth below PEP of the spectrum of the transmitted waveform
-20
B -40 dB bandwidth below PEP of the spectrum of the transmitted waveform
-40
B Chirp bandwidth
B Necessary bandwidth
B 3 dB resolution bandwidth of transceiver
res
dB/dec dB per decade
dBpp dB with respect to peak power
D Detectability Factor
no spur
f Operating Frequency
f Intermediate Frequency
f Receiver operating Frequency
f Image Frequency
image
k Boltzmann's constant
f Local Oscillator Frequency
Pt Pulse power of transmission
RF Radio Frequency
S/N Signal-to-Noise ratio
t Time
T Pulse length (of individual chirp waveforms) in seconds
tp Pulse duration
tr Pulse rise time
tf Pulse fall time
T Temperature in Kelvin
λ Wavelength
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AC Alternating Current
ATC Air Traffic Control
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CW Continuous Wave
EIA Electronic Industries Alliance
IEC International Electrotechnical Commission
IF Intermediate Frequency
ITU International Telecommunication Union
na not available
NF Noise Factor
OoB Out-of-Band
PEP Peak Envelope Power
ppm parts per million
PSR Primary Surveillance Radar
RCSC Radio Components Standardization Committee
RF Radio Frequency
WG Waveguide
4 Technical requirements specifications
4.1 Environmental profile

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, but as a minimum, shall be that specified in the test

conditions contained in the present document. 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.
4.2 Conformance requirements
4.2.1 Transmitter requirements
4.2.1.1 Maximum frequency deviation
4.2.1.1.1 Definition
The maximum frequency deviation is the maximum allowed departure from t
...

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