ETSI EN 303 213-5-1 V1.1.1 (2020-03)

Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)

HARMONISED EUROPEAN STANDARD
Advanced Surface Movement Guidance and
Control System (A-SMGCS);
Part 5: Harmonised Standard for access to
radio spectrum for Multilateration (MLAT) equipment;
Sub-part 1: Receivers and Interrogators

2 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)

Reference
DEN/ERM-TGAERO-37-5-1
Keywords
aeronautical, harmonised standard,
interoperability, radio
ETSI
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ETSI
3 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 7
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.1 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Technical requirements specifications . 10
4.1 Environmental profile . 10
4.2 Conformance Requirements . 11
4.2.1 Applicability . 11
4.2.1.1 Equipment with multiple functions . 11
4.2.2 Transmitter operating frequency and frequency error . 11
4.2.2.1 Definition . 11
4.2.2.2 Limits . 11
4.2.2.3 Conformance . 11
4.2.3 Spectrum mask . 11
4.2.3.1 Definition . 11
4.2.3.2 Limits . 11
4.2.3.3 Conformance . 12
4.2.4 Residual Power Output . 12
4.2.4.1 Definition . 12
4.2.4.2 Limits . 12
4.2.4.3 Conformance . 12
4.2.5 Spurious emissions of transmitter in active mode . 12
4.2.5.1 Definition . 12
4.2.5.2 Limits . 13
4.2.5.3 Conformance . 13
4.2.6 Sensitivity variation over the operating frequency range. 13
4.2.6.1 Definition . 13
4.2.6.2 Limits . 13
4.2.6.3 Conformance . 13
4.2.7 RF selectivity and spurious response rejection . 13
4.2.7.1 Definition . 13
4.2.7.2 Limits . 13
4.2.7.3 Conformance . 14
4.2.8 Inter-modulation response rejection . 14
4.2.8.1 Definition . 14
4.2.8.2 Limits . 14
4.2.8.3 Conformance . 14
4.2.9 Co-channel rejection . 14
4.2.9.1 Definition . 14
4.2.9.2 Limits . 14
4.2.9.3 Conformance . 14
4.2.10 Blocking . 14
4.2.10.1 Definition . 14
4.2.10.2 Limits . 14
4.2.10.3 Conformance . 15
4.2.11 Sensitivity . 15
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4 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
4.2.11.1 Definition . 15
4.2.11.2 Limits . 15
4.2.11.3 Conformance . 15
4.2.12 Receiver spurious emissions . 15
4.2.12.1 Definition . 15
4.2.12.2 Limits . 15
4.2.12.3 Conformance . 15
5 Testing for compliance with technical requirements . 16
5.1 Environmental conditions for testing . 16
5.1.1 General requirements . 16
5.1.2 Procedure for Tests . 16
5.1.2.1 All Equipment . 16
5.1.2.2 Equipment including Transmitters . 16
5.2 Interpretation of the measurement results . 16
5.3 Test and General Conditions . 16
5.3.1 Transmitter test signals . 16
5.3.1.1 General Considerations . 16
5.3.1.2 Test signal 1 . 17
5.3.1.3 Test signal 2 . 17
5.3.2 Simulated received signals . 17
5.3.2.1 General Considerations . 17
5.3.2.2 Test signal 3 . 18
5.3.2.3 Test signal 4 . 18
5.4 Transmitter tests . 18
5.4.1 Operating frequency and frequency error . 18
5.4.1.1 Description . 18
5.4.1.2 Test conditions . 18
5.4.1.3 Method of measurement . 18
5.4.1.4 Measurement procedure . 19
5.4.2 Spectrum mask . 19
5.4.2.1 Description . 19
5.4.2.2 Test conditions . 19
5.4.2.3 Method of measurement . 19
5.4.2.4 Measurement procedure . 19
5.4.3 Residual power output . 20
5.4.3.1 Description . 20
5.4.3.2 Test conditions . 20
5.4.3.3 Method of measurement . 20
5.4.3.4 Measurement procedure . 20
5.4.4 Spurious emissions of transmitter in active mode . 21
5.4.4.1 Description . 21
5.4.4.2 Test conditions . 21
5.4.4.3 Method of measurement . 21
5.4.4.4 Measurement Procedure . 21
5.5 Receiver Tests . 22
5.5.1 Sensitivity variation over the operating frequency range. 22
5.5.1.1 Description . 22
5.5.1.2 Test conditions . 22
5.5.1.3 Method of measurement . 22
5.5.1.4 Measurement procedure . 22
5.5.2 RF selectivity and spurious response rejection . 23
5.5.2.1 Description . 23
5.5.2.2 Test conditions . 23
5.5.2.3 Method of measurement . 23
5.5.2.4 Measurement procedure . 23
5.5.3 Inter-modulation response rejection . 24
5.5.3.1 Description . 24
5.5.3.2 Test conditions . 24
5.5.3.3 Method of measurement . 24
5.5.3.4 Measurement procedure . 24
5.5.4 Co-channel rejection . 25
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5 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
5.5.4.1 Description . 25
5.5.4.2 Test conditions . 25
5.5.4.3 Method of measurement . 25
5.5.4.4 Measurement procedure . 25
5.5.5 Blocking . 26
5.5.5.1 Description . 26
5.5.5.2 Test conditions . 26
5.5.5.3 Method of measurement . 26
5.5.5.4 Measurement procedure . 26
5.5.6 Receiver spurious emissions . 27
5.5.6.1 Description . 27
5.5.6.2 Test conditions . 27
5.5.6.3 Method of measurement . 27
5.5.6.4 Measurement Procedure . 27
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 29
Annex B (informative): Bibliography . 31
Annex C (informative): Change history . 32
History . 33

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6 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
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.3] 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 5, sub-part 1, of a multi-part deliverable covering Advanced Surface Movement Guidance
and Control System (A-SMGCS), as identified below.
Part 1: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS surveillance service including external interfaces";
Part 2: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS airport safety support service";
Part 3: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for a deployed cooperative sensor including its interfaces";
Part 4: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for a deployed non-cooperative sensor including its interfaces";
Part 5: "Harmonised Standard for access to radio spectrum for multilateration equipment":
Sub-part 1: "Receivers and Interrogators";
Sub-part 2: "Reference and vehicle transmitters".
Part 6: "Harmonised Standard for access to radio spectrum for deployed surface movement radar sensors";
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7 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
Part 7: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS routing service";
Part 8: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS guidance service".

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

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
A-SMGCS are systems providing routing, guidance, surveillance and control to aircraft and affected vehicles in order to
maintain movement rate under all local weather conditions within the Aerodrome Visibility Operational Level (AVOL)
whilst maintaining the required level of safety.

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8 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
1 Scope
The present document specifies technical characteristics and methods of measurements for the following equipment:
1) Interrogators transmitting in the 1 030 MHz band, used in Mode S multilateration equipment in an Advanced
Surface Movement Guidance and Control System (A-SMGCS);
2) Receivers, receiving in the 1 090 MHz band, used in Mode S multilateration equipment in an Advanced
Surface Movement Guidance and Control System (A-SMGCS).
Antennas for this equipment are external and passive without an additional amplifier.
The present document does not apply to equipment which includes a transponder function, to ground vehicle locators
and to reference transmitters which do not contain receivers for the purpose of replying to interrogation.
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 specific, identified by date of publication and/or edition number or version number. Only the cited
version 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] ICAO Annex 10, Volume IV: "Surveillance and Collision Avoidance Systems", 5th edition, July
2014, including amendments up to amendment 89.
[2] EUROCAE ED-117A (September 2016): "MOPS for Mode S Multilateration Systems for Use in
Advanced Surface Movement Guidance and Control Systems (A-SMGCS)".
[3] ERC/Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".
2.1 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.
[i.2] ITU Radio Regulations (2016).
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9 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
[i.3] 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.4] ECC/Recommendation (02)05 (2012): "Unwanted emissions".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
conducted measurements: measurements which are made using a wired connection to the EUT
duty cycle: ratio expressed as a percentage, of the cumulative duration of transmissions within an observation interval
and the interval itself, as measured in an observation bandwidth
environmental profile: range of environmental conditions under which the EUT is declared by the manufacturer to
comply with the provisions of the present document
equipment under test: system of constituents provided by the manufacturer for qualification under the present
document
ground based multilateration equipment or ground station: aeronautical station equipment intended for use in an A-
SMGCS multilateration component
NOTE: A ground station can include sensor, interrogator and/or transponder components. A ground station can be
fixed or mobile.
inactive state: entire period between transmissions, less 100 μs transition periods preceding and following the
transmission
interrogator: aeronautical station equipment including at least one transmitter designed to produce aeronautical mobile
service signals at 1 030 MHz
Mode S: particular type of transponder uplink or downlink message defined in ICAO Annex 10, Volume IV [1]
multilateration: surveillance technique which provides position derived from the secondary surveillance radar (SSR)
transponder signals (replies or squitters) primarily using time difference of arrival (TDOA) techniques
NOTE: Additional information, including identification, can be extracted from the received signals.
Operating Channel (OC): frequency range in which the transmission from the EUT occurs, or in which the EUT is
intended to receive transmissions
operating frequency: centre of the OC
out of band emissions: power transmitted at frequencies outside the OC but within the specified spectral mask
probability of detection: rate of correctly received and decoded squitter messages
receiver: EUT which includes the capability to convert RF signals into binary content
resolution bandwidth: bandwidth that is used for measurements used for spectral measurements
sensor: aeronautical station equipment including at least one receiver designed to receive aeronautical mobile service
signals at 1 030 and/or 1 090 MHz
spurious emissions: power transmitted at frequencies below or above the Out-of-Band domain
NOTE: Spurious emissions include harmonic emissions, parasitic emissions, intermodulation products and
frequency conversion products, but exclude Out of Band emissions.
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10 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
transmission: radio emission consisting of one uplink or downlink Mode S message
transmitter: EUT which includes the capability to convert binary content into RF signals
transponder: aeronautical station equipment including at least one transmitter designed to produce aeronautical mobile
radionavigation service signals at 1 090 MHz and zero or more receivers designed to receive aeronautical mobile
radionavigation service signals at 1 030 MHz
unwanted signal: any signal other than the wanted signal or as described in a specific test case
wanted signal: in-band signal modulated according to the Mode specification
NOTE: Some manufacturers may also accept Mode 3A/C and other modulations which is beyond the scope of the
present document.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
dB decibel
dBc dB relative to carrier
dBm power in dB relative to 1 milliwatt
dBpp dB below PEP
f measurement frequency
µs Microsecond
Ω Ohm
PD Probability of Detection
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ADS-B Automatic Dependant Surveillance Broadcast
A-SMGCS Advanced Surface Movement Guidance and Control System
AVOL Aerodrome Visibility Operational Level
CRC Cyclic Redundancy Check
DME Distance Measuring Equipment
EUT Equipment Under Test
ICAO International Civil Aviation Organization
MOPS Minimum Operational Performance Specification
OC Operating Channel
OoB Out-of-Band
PEP Peak Envelope Power
RBW Reference BandWidth
RF Radio Frequency
RMS Root Mean Square
SSR Secondary Surveillance Radar
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 declared by the manufacturer in accordance to the environmental requirements stated in
EUROCAE ED-117A [2], Chapter 4 (Requirements [REQ 73.] to [REQ 78]. The equipment shall comply with all the
technical requirements of the present document at all times when operating within the boundary limits of the declared
environmental profile.
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11 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
4.2 Conformance Requirements
4.2.1 Applicability
4.2.1.1 Equipment with multiple functions
Any ground station which includes the interrogator function shall comply with the requirements in clause 4.2.2 to 4.2.5.
Any ground station which includes the receiver function shall comply with the requirements in clause 4.2.6 to 4.2.12.
4.2.2 Transmitter operating frequency and frequency error
4.2.2.1 Definition
The operating frequency is the nominal value of the carrier frequency.
The frequency error is the difference between the actual carrier frequency and its nominal value of 1 030 MHz.
4.2.2.2 Limits
The nominal value of carrier frequency of the interrogation and control transmissions shall be 1 030 MHz.
The absolute value of the frequency error shall not exceed 0,01 MHz as specified in clause 3.1.2.1.1 of ICAO Annex 10
Volume IV [1].
NOTE: This limit is stricter than the requirement defined in Appendix 2 of the ITU Radio Regulations [i.2].
4.2.2.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.4.1.
4.2.3 Spectrum mask
4.2.3.1 Definition
A spectrum mask is a set of limit lines applied to a plot of a transmitter spectrum. The purpose is to constrain emissions
at frequencies in the Out of Band domain which lies immediately outside the intended Operating Channel.
The Out of Band domain extends to ±125 MHz from the nominal operating frequency of 1 030 MHz. The frequencies
outside the Out of Band domain are defined as the spurious domain.
The definition of the spectrum mask is chosen as an alternative method to the specification of Out of Band domain
emissions.
4.2.3.2 Limits
The measured spectrum shall be below the limit lines shown in Figure 1
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12 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)

Figure 1: Spectrum mask for an interrogator transmitter
The spectrum mask specified in ICAO Annex 10 Volume 4 Figure 3-2 [1] has been modified in order to be consistent
with Appendix 3 of the ITU Radio Regulations [i.2]. The ICAO mask was extrapolated from the last three steps to
determine when the mask would intercept the -60 dB point. A value of approximately 125 MHz was reached. 125 MHz
is also the point reached when extrapolating the mask from the -40 dB (i.e. 40 MHz) by -40 dB per decade, which is the
design objective for the 60 dBpp systems reflected in Table 3 in ECC REC (02) 05 [i.4] until the spurious limit is
reached. This is also reflected in Figure A2.1 a) of ECC REC (02)05 [i.4], the Emission Mask for radars.
4.2.3.3 Conformance
The conformance tests shall be as defined in clause 5.4.2.
4.2.4 Residual Power Output
4.2.4.1 Definition
The residual power output is the power output when not in the active state (i.e. between transmissions)
4.2.4.2 Limits
The residual power output shall be not greater than -47 dBm above 1 GHz and -57 dBm at and below 1 GHz as
specified in Table 15 of Annex 5 of ERC Recommendation 74-01 [3].
4.2.4.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.4.3.
4.2.5 Spurious emissions of transmitter in active mode
4.2.5.1 Definition
Spurious emissions are unwanted emissions in the spurious domain. For active transmitters, the spurious domain is all
frequencies apart from the operating channel and the Out-of-Band domain.
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13 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
4.2.5.2 Limits
The power of any unwanted emission in the spurious domain shall not exceed -13 dBm or 60 dB below PEP (whichever
is less stringent) as specified in Table 15 of Annex 5 of ERC Recommendation 74-01 [3].
4.2.5.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.4.4.
4.2.6 Sensitivity variation over the operating frequency range
4.2.6.1 Definition
The receiver sensitivity is the ability to receive a wanted signal at low input signal levels while providing a pre-
determined level of performance. The operating frequency range is the frequency range around the nominal operating
frequency over which reception of signals can be achieved.
4.2.6.2 Limits
The sensitivity shall not degrade by more than 3 dB as the incoming signal is offset by a tolerance of 1 MHz.
4.2.6.3 Conformance
The conformance tests shall be as defined in clause 5.5.1
4.2.7 RF selectivity and spurious response rejection
4.2.7.1 Definition
RF selectivity and spurious response rejection are the ability of the EUT to avoid erroneous reception of signals from
outside the desired frequency band.
Limits are evaluated assuming the signal is constructed as a valid Mode S waveform except that the frequency is
altered. Although a 1 090 MHz system has only a single frequency channel, DME systems may occupy adjacent
frequency allocations within the aviation band. It is important that the receiver rejects signals which are out of band
while retaining sufficient bandwidth for acceptable multilateration performance.
4.2.7.2 Limits
The EUT shall reject signals such that the signal level of a valid message shall be increased by at least the value given
for the frequency offset in Table 1 before the signal is received with a probability of 90 %.
NOTE 1: The limits were derived from receiver Out-of-Band rejection characteristics that are used within the
industry for receivers that are used for both ADS-B and multilateration.
NOTE 2: These limits use valid Mode S signals in order to be a more stringent requirement for the receiver
rejection.
Table 1: Minimum rejection level for messages
Frequency (MHz) Minimum Rejection level (dB)
±12,5 3
±19 20
±29 40
±46 60
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14 Draft ETSI EN 303 213-5-1 V1.0.0 (2019-12)
EXAMPLE: Assume the EUT receives a valid signal at 1 090 MHz with 90 % PD at a level of -80 dBm. A
similar signal offset by 19 MHz would need to be injected at least 20 dB higher (i.e. ≥ -60 dBm)
before the same 90 % PD was achieved. This shows that the receiver has at least 20 dB of rejection
at the 19 MHz frequency offset.
4.2.7.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.5.2.
4.2.8 Inter-modulation response rejection
4.2.8.1 Definition
The intermodulation response rejection is a measure of the capability of the receiver to receive a wanted modulated
signal without exceeding a given degradation due to the presence of two or more unwanted signals with a specific
frequency relationship relative to the receiver frequency.
4.2.8.2 Limits
At any frequency combination from -78 MHz to -20 MHz and from +20 MHz to +78 MHz from the receiver frequency
of 1 090 MHz, the unwanted signals shall not reduce the probability of detection by more than 5 percentage points if
their signal level is 40 dB above the reference sensitivity.
4.2.8.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.5.3.

4.2.9 Co-channel rejection
4.2.9.1 Definition
Co-channel rejection is the receiver's ability to re
...

SLOVENSKI STANDARD
01-junij-2020
Napredni sistem za vodenje in nadzor gibanja po zemlji (A-SMGCS) - 5. del:
Harmonizirani standard za dostop do radijskega spektra za večplastno (MLAT)
opremo - 1. poddel: Sprejemniki in bralniki
Advanced Surface Movement Guidance and Control System (A-SMGCS) - Part 5:
Harmonised Standard for access to radio spectrum for Multilateration (MLAT) equipment
- Sub-part 1: Receivers and Interrogators
Ta slovenski standard je istoveten z: ETSI EN 303 213-5-1 V1.1.1 (2020-03)
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONISED EUROPEAN STANDARD
Advanced Surface Movement Guidance and
Control System (A-SMGCS);
Part 5: Harmonised Standard for access to
radio spectrum for Multilateration (MLAT) equipment;
Sub-part 1: Receivers and Interrogators

2 ETSI EN 303 213-5-1 V1.1.1 (2020-03)

Reference
DEN/ERM-TGAERO-37-5-1
Keywords
aeronautical, harmonised standard,
interoperability, 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.
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ETSI
3 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 7
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.1 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Technical requirements specifications . 10
4.1 Environmental profile . 10
4.2 Conformance Requirements . 11
4.2.1 Applicability . 11
4.2.1.1 Equipment with multiple functions . 11
4.2.2 Transmitter operating frequency and frequency error . 11
4.2.2.1 Definition . 11
4.2.2.2 Limits . 11
4.2.2.3 Conformance . 11
4.2.3 Spectrum mask . 11
4.2.3.1 Definition . 11
4.2.3.2 Limits . 11
4.2.3.3 Conformance . 12
4.2.4 Residual Power Output . 12
4.2.4.1 Definition . 12
4.2.4.2 Limits . 12
4.2.4.3 Conformance . 12
4.2.5 Spurious emissions of transmitter in active mode . 12
4.2.5.1 Definition . 12
4.2.5.2 Limits . 13
4.2.5.3 Conformance . 13
4.2.6 Sensitivity variation over the operating frequency range. 13
4.2.6.1 Definition . 13
4.2.6.2 Limits . 13
4.2.6.3 Conformance . 13
4.2.7 RF selectivity and spurious response rejection . 13
4.2.7.1 Definition . 13
4.2.7.2 Limits . 13
4.2.7.3 Conformance . 14
4.2.8 Inter-modulation response rejection . 14
4.2.8.1 Definition . 14
4.2.8.2 Limits . 14
4.2.8.3 Conformance . 14
4.2.9 Co-channel rejection . 14
4.2.9.1 Definition . 14
4.2.9.2 Limits . 14
4.2.9.3 Conformance . 14
4.2.10 Blocking . 14
4.2.10.1 Definition . 14
4.2.10.2 Limits . 14
4.2.10.3 Conformance . 15
4.2.11 Sensitivity . 15
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4 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
4.2.11.1 Definition . 15
4.2.11.2 Limits . 15
4.2.11.3 Conformance . 15
4.2.12 Receiver spurious emissions . 15
4.2.12.1 Definition . 15
4.2.12.2 Limits . 15
4.2.12.3 Conformance . 15
5 Testing for compliance with technical requirements . 15
5.1 Environmental conditions for testing . 15
5.1.1 General requirements . 15
5.1.2 Procedure for Tests . 16
5.1.2.1 All Equipment . 16
5.1.2.2 Equipment including Transmitters . 16
5.2 Interpretation of the measurement results . 16
5.3 Test and General Conditions . 16
5.3.1 Transmitter test signals . 16
5.3.1.1 General Considerations . 16
5.3.1.2 Test signal 1 . 16
5.3.1.3 Test signal 2 . 17
5.3.2 Simulated received signals . 17
5.3.2.1 General Considerations . 17
5.3.2.2 Test signal 3 . 17
5.3.2.3 Test signal 4 . 18
5.4 Transmitter tests . 18
5.4.1 Operating frequency and frequency error . 18
5.4.1.1 Description . 18
5.4.1.2 Test conditions . 18
5.4.1.3 Method of measurement . 18
5.4.1.4 Measurement procedure . 18
5.4.2 Spectrum mask . 19
5.4.2.1 Description . 19
5.4.2.2 Test conditions . 19
5.4.2.3 Method of measurement . 19
5.4.2.4 Measurement procedure . 19
5.4.3 Residual Power Output . 20
5.4.3.1 Description . 20
5.4.3.2 Test conditions . 20
5.4.3.3 Method of measurement . 20
5.4.3.4 Measurement procedure . 20
5.4.4 Spurious emissions of transmitter in active mode . 21
5.4.4.1 Description . 21
5.4.4.2 Test conditions . 21
5.4.4.3 Method of measurement . 21
5.4.4.4 Measurement Procedure . 21
5.5 Receiver Tests . 22
5.5.1 Sensitivity variation over the operating frequency range. 22
5.5.1.1 Description . 22
5.5.1.2 Test conditions . 22
5.5.1.3 Method of measurement . 22
5.5.1.4 Measurement procedure . 22
5.5.2 RF selectivity and spurious response rejection . 23
5.5.2.1 Description . 23
5.5.2.2 Test conditions . 23
5.5.2.3 Method of measurement . 23
5.5.2.4 Measurement procedure . 23
5.5.3 Inter-modulation response rejection . 23
5.5.3.1 Description . 23
5.5.3.2 Test conditions . 24
5.5.3.3 Method of measurement . 24
5.5.3.4 Measurement procedure . 24
5.5.4 Co-channel rejection . 25
ETSI
5 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
5.5.4.1 Description . 25
5.5.4.2 Test conditions . 25
5.5.4.3 Method of measurement . 25
5.5.4.4 Measurement procedure . 25
5.5.5 Blocking . 26
5.5.5.1 Description . 26
5.5.5.2 Test conditions . 26
5.5.5.3 Method of measurement . 26
5.5.5.4 Measurement procedure . 26
5.5.6 Receiver spurious emissions . 27
5.5.6.1 Description . 27
5.5.6.2 Test conditions . 27
5.5.6.3 Method of measurement . 27
5.5.6.4 Measurement Procedure . 27
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 28
Annex B (informative): Bibliography . 30
Annex C (informative): Change history . 31
History . 32

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6 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
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.3] 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 5, sub-part 1, of a multi-part deliverable covering Advanced Surface Movement Guidance
and Control System (A-SMGCS), as identified below.
Part 1: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS surveillance service including external interfaces";
Part 2: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS airport safety support service";
Part 3: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for a deployed cooperative sensor including its interfaces";
Part 4: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for a deployed non-cooperative sensor including its interfaces";
Part 5: "Harmonised Standard for access to radio spectrum for multilateration equipment":
Sub-part 1: "Receivers and Interrogators";
Sub-part 2: "Reference and vehicle transmitters";
Part 6: "Harmonised Standard for access to radio spectrum for deployed surface movement radar sensors";
Part 7: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS routing service";
ETSI
7 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
Part 8: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS guidance service".

National transposition dates
Date of adoption of this EN: 9 March 2020
Date of latest announcement of this EN (doa): 30 June 2020
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2020
Date of withdrawal of any conflicting National Standard (dow): 31 December 2021

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
A-SMGCS are systems providing routing, guidance, surveillance and control to aircraft and affected vehicles in order to
maintain movement rate under all local weather conditions within the Aerodrome Visibility Operational Level (AVOL)
whilst maintaining the required level of safety.

ETSI
8 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
1 Scope
The present document specifies technical characteristics and methods of measurements for the following equipment:
1) Interrogators transmitting in the 1 030 MHz band, used in Mode S multilateration equipment in an Advanced
Surface Movement Guidance and Control System (A-SMGCS).
2) Receivers, receiving in the 1 090 MHz band, used in Mode S multilateration equipment in an Advanced
Surface Movement Guidance and Control System (A-SMGCS).
Antennas for this equipment are external and passive without an additional amplifier.
The present document does not apply to equipment which includes a transponder function, to ground vehicle locators
and to reference transmitters which do not contain receivers for the purpose of replying to interrogation.
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 specific, identified by date of publication and/or edition number or version number. Only the cited
version 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] ICAO Annex 10, Volume IV: "Surveillance and Collision Avoidance Systems", 5th edition, July
2014, including amendments up to amendment 89.
[2] EUROCAE ED-117A (September 2016): "MOPS for Mode S Multilateration Systems for Use in
Advanced Surface Movement Guidance and Control Systems (A-SMGCS)".
[3] ERC/Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".
2.1 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.
[i.2] ITU Radio Regulations (2016).
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9 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
[i.3] 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.4] ECC/Recommendation (02)05 (2012): "Unwanted emissions".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
conducted measurements: measurements which are made using a wired connection to the EUT
duty cycle: ratio expressed as a percentage, of the cumulative duration of transmissions within an observation interval
and the interval itself, as measured in an observation bandwidth
environmental profile: range of environmental conditions under which the EUT is declared by the manufacturer to
comply with the provisions of the present document
equipment under test: system of constituents provided by the manufacturer for qualification under the present
document
ground based multilateration equipment or ground station: aeronautical station equipment intended for use in an A-
SMGCS multilateration component
NOTE: A ground station can include sensor, interrogator and/or transponder components. A ground station can be
fixed or mobile.
inactive state: entire period between transmissions, less 100 μs transition periods preceding and following the
transmission
interrogator: aeronautical station equipment including at least one transmitter designed to produce aeronautical mobile
service signals at 1 030 MHz
Mode S: particular type of transponder uplink or downlink message defined in ICAO Annex 10, Volume IV [1]
multilateration: surveillance technique which provides position derived from the secondary surveillance radar (SSR)
transponder signals (replies or squitters) primarily using time difference of arrival (TDOA) techniques
NOTE: Additional information, including identification, can be extracted from the received signals.
Operating Channel (OC): frequency range in which the transmission from the EUT occurs, or in which the EUT is
intended to receive transmissions
operating frequency: centre of the OC
out of band emissions: power transmitted at frequencies outside the OC but within the specified spectral mask
probability of detection: rate of correctly received and decoded squitter messages
receiver: EUT which includes the capability to convert RF signals into binary content
resolution bandwidth: bandwidth that is used for measurements used for spectral measurements
sensor: aeronautical station equipment including at least one receiver designed to receive aeronautical mobile service
signals at 1 030 MHz and/or 1 090 MHz
spurious emissions: power transmitted at frequencies below or above the Out-of-Band domain
NOTE: Spurious emissions include harmonic emissions, parasitic emissions, intermodulation products and
frequency conversion products, but exclude Out of Band emissions.
ETSI
10 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
transmission: radio emission consisting of one uplink or downlink Mode S message
transmitter: EUT which includes the capability to convert binary content into RF signals
transponder: aeronautical station equipment including at least one transmitter designed to produce aeronautical mobile
radionavigation service signals at 1 090 MHz and zero or more receivers designed to receive aeronautical mobile
radionavigation service signals at 1 030 MHz
unwanted signal: any signal other than the wanted signal or as described in a specific test case
wanted signal: in-band signal modulated according to the Mode specification
NOTE: Some manufacturers may also accept Mode 3A/C and other modulations which is beyond the scope of the
present document.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
dB decibel
dBc dB relative to carrier
dBm power in dB relative to 1 milliwatt
dBpp dB below PEP
f measurement frequency
µs Microsecond
Ω Ohm
PD Probability of Detection
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ADS-B Automatic Dependant Surveillance Broadcast
A-SMGCS Advanced Surface Movement Guidance and Control System
AVOL Aerodrome Visibility Operational Level
CRC Cyclic Redundancy Check
DME Distance Measuring Equipment
EUT Equipment Under Test
ICAO International Civil Aviation Organization
MOPS Minimum Operational Performance Specification
OC Operating Channel
PEP Peak Envelope Power
RBW Reference BandWidth
RF Radio Frequency
RMS Root Mean Square
SSR Secondary Surveillance Radar
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 declared by the manufacturer in accordance to the environmental requirements stated in
EUROCAE ED-117A [2], Chapter 4 (Requirements [REQ 73.] to [REQ 78.]). The equipment shall comply with all the
technical requirements of the present document at all times when operating within the boundary limits of the declared
environmental profile.
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11 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
4.2 Conformance Requirements
4.2.1 Applicability
4.2.1.1 Equipment with multiple functions
Any ground station which includes the interrogator function shall comply with the requirements in clause 4.2.2 to
clause 4.2.5.
Any ground station which includes the receiver function shall comply with the requirements in clause 4.2.6 to
clause 4.2.12.
4.2.2 Transmitter operating frequency and frequency error
4.2.2.1 Definition
The operating frequency is the nominal value of the carrier frequency.
The frequency error is the difference between the actual carrier frequency and its nominal value of 1 030 MHz.
4.2.2.2 Limits
The nominal value of carrier frequency of the interrogation and control transmissions shall be 1 030 MHz.
The absolute value of the frequency error shall not exceed 0,01 MHz as specified in ICAO Annex 10, Volume IV [1],
clause 3.1.2.1.1.
NOTE: This limit is stricter than the requirement defined in the ITU Radio Regulations [i.2], Appendix 2.
4.2.2.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.4.1.
4.2.3 Spectrum mask
4.2.3.1 Definition
A spectrum mask is a set of limit lines applied to a plot of a transmitter spectrum. The purpose is to constrain emissions
at frequencies in the Out of Band domain which lies immediately outside the intended Operating Channel.
The Out of Band domain extends to ± 125 MHz from the nominal operating frequency of 1 030 MHz. The frequencies
outside the Out of Band domain are defined as the spurious domain.
The definition of the spectrum mask is chosen as an alternative method to the specification of Out of Band domain
emissions.
4.2.3.2 Limits
The measured spectrum shall be below the limit lines shown in Figure 1.
ETSI
12 ETSI EN 303 213-5-1 V1.1.1 (2020-03)

Figure 1: Spectrum mask for an interrogator transmitter
The spectrum mask specified in ICAO Annex 10, Volume 4 [1], Figure 3-2 has been modified in order to be consistent
with the ITU Radio Regulations [i.2], Appendix 3. The ICAO mask was extrapolated from the last three steps to
determine when the mask would intercept the -60 dB point. A value of approximately 125 MHz was reached. 125 MHz
is also the point reached when extrapolating the mask from the -40 dB (i.e. 40 MHz) by -40 dB per decade, which is the
design objective for the 60 dBpp systems reflected in ECC REC (02) 05 [i.4], Table 3 until the spurious limit is reached.
This is also reflected in ECC REC (02)05 [i.4], Figure A2.1, item a), the Emission Mask for radars.
4.2.3.3 Conformance
The conformance tests shall be as defined in clause 5.4.2.
4.2.4 Residual Power Output
4.2.4.1 Definition
The residual power output is the power output when not in the active state (i.e. between transmissions).
4.2.4.2 Limits
The residual power output shall be not greater than -47 dBm above 1 GHz and -57 dBm at and below 1 GHz as
specified in ERC Recommendation 74-01 [3], Annex 5, Table 15.
4.2.4.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.4.3.
4.2.5 Spurious emissions of transmitter in active mode
4.2.5.1 Definition
Spurious emissions are unwanted emissions in the spurious domain. For active transmitters, the spurious domain is all
frequencies apart from the operating channel and the Out-of-Band domain.
ETSI
13 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
4.2.5.2 Limits
The power of any unwanted emission in the spurious domain shall not exceed -13 dBm or 60 dB below PEP (whichever
is less stringent) as specified in ERC Recommendation 74-01 [3], Annex 5, Table 15.
4.2.5.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.4.4.
4.2.6 Sensitivity variation over the operating frequency range
4.2.6.1 Definition
The receiver sensitivity is the ability to receive a wanted signal at low input signal levels while providing a pre-
determined level of performance. The operating frequency range is the frequency range around the nominal operating
frequency over which reception of signals can be achieved.
4.2.6.2 Limits
The sensitivity shall not degrade by more than 3 dB as the incoming signal is offset by a tolerance of 1 MHz.
4.2.6.3 Conformance
The conformance tests shall be as defined in clause 5.5.1.
4.2.7 RF selectivity and spurious response rejection
4.2.7.1 Definition
RF selectivity and spurious response rejection are the ability of the EUT to avoid erroneous reception of signals from
outside the desired frequency band.
Limits are evaluated assuming the signal is constructed as a valid Mode S waveform except that the frequency is
altered. Although a 1 090 MHz system has only a single frequency channel, DME systems may occupy adjacent
frequency allocations within the aviation band. It is important that the receiver rejects signals which are out of band
while retaining sufficient bandwidth for acceptable multilateration performance.
4.2.7.2 Limits
The EUT shall reject signals such that the signal level of a valid message shall be increased by at least the value given
for the frequency offset in Table 1 before the signal is received with a probability of 90 %.
NOTE 1: The limits were derived from receiver Out-of-Band rejection characteristics that are used within the
industry for receivers that are used for both ADS-B and multilateration.
NOTE 2: These limits use valid Mode S signals in order to be a more stringent requirement for the receiver
rejection.
Table 1: Minimum rejection level for messages
Frequency Offset (MHz) Minimum Rejection level (dB)
± 12,5 3
± 19 20
± 29 40
± 46 60
ETSI
14 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
EXAMPLE: Assume the EUT receives a valid signal at 1 090 MHz with 90 % PD at a level of -80 dBm.
A similar signal
...

SLOVENSKI STANDARD
01-junij-2020
Napredni sistem za vodenje in nadzor gibanja po zemlji (A-SMGCS) - 5. del:
Harmonizirani standard za dostop do radijskega spektra za večplastno (MLAT)
opremo - 1. poddel: Sprejemniki in bralniki
Advanced Surface Movement Guidance and Control System (A-SMGCS) - Part 5:
Harmonised Standard for access to radio spectrum for Multilateration (MLAT) equipment
- Sub-part 1: Receivers and Interrogators
Ta slovenski standard je istoveten z: ETSI EN 303 213-5-1 V1.1.1 (2020-03)
ICS:
03.220.50 Zračni transport Air transport
49.090 Oprema in instrumenti v On-board equipment and
zračnih in vesoljskih plovilih instruments
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONISED EUROPEAN STANDARD
Advanced Surface Movement Guidance and
Control System (A-SMGCS);
Part 5: Harmonised Standard for access to
radio spectrum for Multilateration (MLAT) equipment;
Sub-part 1: Receivers and Interrogators

2 ETSI EN 303 213-5-1 V1.1.1 (2020-03)

Reference
DEN/ERM-TGAERO-37-5-1
Keywords
aeronautical, harmonised standard,
interoperability, radio
ETSI
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Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
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Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
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No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2020.
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
3 ETSI EN 303 213-5-1 V1.1.1 (2020-03)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 7
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.1 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 Technical requirements specifications . 10
4.1 Environmental profile . 10
4.2 Conformance Requirements . 11
4.2.1 Applicability . 11
4.2.1.1 Equipment with multiple functions . 11
4.2.2 Transmitter operating frequency and frequency error . 11
4.2.2.1 Definition . 11
4.2.2.2 Limits . 11
4.2.2.3 Conformance . 11
4.2.3 Spectrum mask . 11
4.2.3.1 Definition . 11
4.2.3.2 Limits . 11
4.2.3.3 Conformance . 12
4.2.4 Residual Power Output . 12
4.2.4.1 Definition . 12
4.2.4.2 Limits . 12
4.2.4.3 Conformance . 12
4.2.5 Spurious emissions of transmitter in active mode . 12
4.2.5.1 Definition . 12
4.2.5.2 Limits . 13
4.2.5.3 Conformance . 13
4.2.6 Sensitivity variation over the operating frequency range. 13
4.2.6.1 Definition . 13
4.2.6.2 Limits . 13
4.2.6.3 Conformance . 13
4.2.7 RF selectivity and spurious response rejection . 13
4.2.7.1 Definition . 13
4.2.7.2 Limits . 13
4.2.7.3 Conformance . 14
4.2.8 Inter-modulation response rejection . 14
4.2.8.1 Definition . 14
4.2.8.2 Limits . 14
4.2.8.3 Conformance . 14
4.2.9 Co-channel rejection . 14
4.2.9.1 Definition . 14
4.2.9.2 Limits . 14
4.2.9.3 Conformance . 14
4.2.10 Blocking . 14
4.2.10.1 Definition . 14
4.2.10.2 Limits . 14
4.2.10.3 Conformance . 15
4.2.11 Sensitivity . 15
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4.2.11.1 Definition . 15
4.2.11.2 Limits . 15
4.2.11.3 Conformance . 15
4.2.12 Receiver spurious emissions . 15
4.2.12.1 Definition . 15
4.2.12.2 Limits . 15
4.2.12.3 Conformance . 15
5 Testing for compliance with technical requirements . 15
5.1 Environmental conditions for testing . 15
5.1.1 General requirements . 15
5.1.2 Procedure for Tests . 16
5.1.2.1 All Equipment . 16
5.1.2.2 Equipment including Transmitters . 16
5.2 Interpretation of the measurement results . 16
5.3 Test and General Conditions . 16
5.3.1 Transmitter test signals . 16
5.3.1.1 General Considerations . 16
5.3.1.2 Test signal 1 . 16
5.3.1.3 Test signal 2 . 17
5.3.2 Simulated received signals . 17
5.3.2.1 General Considerations . 17
5.3.2.2 Test signal 3 . 17
5.3.2.3 Test signal 4 . 18
5.4 Transmitter tests . 18
5.4.1 Operating frequency and frequency error . 18
5.4.1.1 Description . 18
5.4.1.2 Test conditions . 18
5.4.1.3 Method of measurement . 18
5.4.1.4 Measurement procedure . 18
5.4.2 Spectrum mask . 19
5.4.2.1 Description . 19
5.4.2.2 Test conditions . 19
5.4.2.3 Method of measurement . 19
5.4.2.4 Measurement procedure . 19
5.4.3 Residual Power Output . 20
5.4.3.1 Description . 20
5.4.3.2 Test conditions . 20
5.4.3.3 Method of measurement . 20
5.4.3.4 Measurement procedure . 20
5.4.4 Spurious emissions of transmitter in active mode . 21
5.4.4.1 Description . 21
5.4.4.2 Test conditions . 21
5.4.4.3 Method of measurement . 21
5.4.4.4 Measurement Procedure . 21
5.5 Receiver Tests . 22
5.5.1 Sensitivity variation over the operating frequency range. 22
5.5.1.1 Description . 22
5.5.1.2 Test conditions . 22
5.5.1.3 Method of measurement . 22
5.5.1.4 Measurement procedure . 22
5.5.2 RF selectivity and spurious response rejection . 23
5.5.2.1 Description . 23
5.5.2.2 Test conditions . 23
5.5.2.3 Method of measurement . 23
5.5.2.4 Measurement procedure . 23
5.5.3 Inter-modulation response rejection . 23
5.5.3.1 Description . 23
5.5.3.2 Test conditions . 24
5.5.3.3 Method of measurement . 24
5.5.3.4 Measurement procedure . 24
5.5.4 Co-channel rejection . 25
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5.5.4.1 Description . 25
5.5.4.2 Test conditions . 25
5.5.4.3 Method of measurement . 25
5.5.4.4 Measurement procedure . 25
5.5.5 Blocking . 26
5.5.5.1 Description . 26
5.5.5.2 Test conditions . 26
5.5.5.3 Method of measurement . 26
5.5.5.4 Measurement procedure . 26
5.5.6 Receiver spurious emissions . 27
5.5.6.1 Description . 27
5.5.6.2 Test conditions . 27
5.5.6.3 Method of measurement . 27
5.5.6.4 Measurement Procedure . 27
Annex A (informative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 28
Annex B (informative): Bibliography . 30
Annex C (informative): Change history . 31
History . 32

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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.3] 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 5, sub-part 1, of a multi-part deliverable covering Advanced Surface Movement Guidance
and Control System (A-SMGCS), as identified below.
Part 1: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS surveillance service including external interfaces";
Part 2: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS airport safety support service";
Part 3: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for a deployed cooperative sensor including its interfaces";
Part 4: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for a deployed non-cooperative sensor including its interfaces";
Part 5: "Harmonised Standard for access to radio spectrum for multilateration equipment":
Sub-part 1: "Receivers and Interrogators";
Sub-part 2: "Reference and vehicle transmitters";
Part 6: "Harmonised Standard for access to radio spectrum for deployed surface movement radar sensors";
Part 7: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS routing service";
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Part 8: "Community Specification for application under the Single European Sky Interoperability Regulation EC
552/2004 for A-SMGCS guidance service".

National transposition dates
Date of adoption of this EN: 9 March 2020
Date of latest announcement of this EN (doa): 30 June 2020
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2020
Date of withdrawal of any conflicting National Standard (dow): 31 December 2021

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
A-SMGCS are systems providing routing, guidance, surveillance and control to aircraft and affected vehicles in order to
maintain movement rate under all local weather conditions within the Aerodrome Visibility Operational Level (AVOL)
whilst maintaining the required level of safety.

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1 Scope
The present document specifies technical characteristics and methods of measurements for the following equipment:
1) Interrogators transmitting in the 1 030 MHz band, used in Mode S multilateration equipment in an Advanced
Surface Movement Guidance and Control System (A-SMGCS).
2) Receivers, receiving in the 1 090 MHz band, used in Mode S multilateration equipment in an Advanced
Surface Movement Guidance and Control System (A-SMGCS).
Antennas for this equipment are external and passive without an additional amplifier.
The present document does not apply to equipment which includes a transponder function, to ground vehicle locators
and to reference transmitters which do not contain receivers for the purpose of replying to interrogation.
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 specific, identified by date of publication and/or edition number or version number. Only the cited
version 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] ICAO Annex 10, Volume IV: "Surveillance and Collision Avoidance Systems", 5th edition, July
2014, including amendments up to amendment 89.
[2] EUROCAE ED-117A (September 2016): "MOPS for Mode S Multilateration Systems for Use in
Advanced Surface Movement Guidance and Control Systems (A-SMGCS)".
[3] ERC/Recommendation 74-01 (2019): "Unwanted emissions in the spurious domain".
2.1 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.
[i.2] ITU Radio Regulations (2016).
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[i.3] 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.4] ECC/Recommendation (02)05 (2012): "Unwanted emissions".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
conducted measurements: measurements which are made using a wired connection to the EUT
duty cycle: ratio expressed as a percentage, of the cumulative duration of transmissions within an observation interval
and the interval itself, as measured in an observation bandwidth
environmental profile: range of environmental conditions under which the EUT is declared by the manufacturer to
comply with the provisions of the present document
equipment under test: system of constituents provided by the manufacturer for qualification under the present
document
ground based multilateration equipment or ground station: aeronautical station equipment intended for use in an A-
SMGCS multilateration component
NOTE: A ground station can include sensor, interrogator and/or transponder components. A ground station can be
fixed or mobile.
inactive state: entire period between transmissions, less 100 μs transition periods preceding and following the
transmission
interrogator: aeronautical station equipment including at least one transmitter designed to produce aeronautical mobile
service signals at 1 030 MHz
Mode S: particular type of transponder uplink or downlink message defined in ICAO Annex 10, Volume IV [1]
multilateration: surveillance technique which provides position derived from the secondary surveillance radar (SSR)
transponder signals (replies or squitters) primarily using time difference of arrival (TDOA) techniques
NOTE: Additional information, including identification, can be extracted from the received signals.
Operating Channel (OC): frequency range in which the transmission from the EUT occurs, or in which the EUT is
intended to receive transmissions
operating frequency: centre of the OC
out of band emissions: power transmitted at frequencies outside the OC but within the specified spectral mask
probability of detection: rate of correctly received and decoded squitter messages
receiver: EUT which includes the capability to convert RF signals into binary content
resolution bandwidth: bandwidth that is used for measurements used for spectral measurements
sensor: aeronautical station equipment including at least one receiver designed to receive aeronautical mobile service
signals at 1 030 MHz and/or 1 090 MHz
spurious emissions: power transmitted at frequencies below or above the Out-of-Band domain
NOTE: Spurious emissions include harmonic emissions, parasitic emissions, intermodulation products and
frequency conversion products, but exclude Out of Band emissions.
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transmission: radio emission consisting of one uplink or downlink Mode S message
transmitter: EUT which includes the capability to convert binary content into RF signals
transponder: aeronautical station equipment including at least one transmitter designed to produce aeronautical mobile
radionavigation service signals at 1 090 MHz and zero or more receivers designed to receive aeronautical mobile
radionavigation service signals at 1 030 MHz
unwanted signal: any signal other than the wanted signal or as described in a specific test case
wanted signal: in-band signal modulated according to the Mode specification
NOTE: Some manufacturers may also accept Mode 3A/C and other modulations which is beyond the scope of the
present document.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
dB decibel
dBc dB relative to carrier
dBm power in dB relative to 1 milliwatt
dBpp dB below PEP
f measurement frequency
µs Microsecond
Ω Ohm
PD Probability of Detection
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ADS-B Automatic Dependant Surveillance Broadcast
A-SMGCS Advanced Surface Movement Guidance and Control System
AVOL Aerodrome Visibility Operational Level
CRC Cyclic Redundancy Check
DME Distance Measuring Equipment
EUT Equipment Under Test
ICAO International Civil Aviation Organization
MOPS Minimum Operational Performance Specification
OC Operating Channel
PEP Peak Envelope Power
RBW Reference BandWidth
RF Radio Frequency
RMS Root Mean Square
SSR Secondary Surveillance Radar
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 declared by the manufacturer in accordance to the environmental requirements stated in
EUROCAE ED-117A [2], Chapter 4 (Requirements [REQ 73.] to [REQ 78.]). The equipment shall comply with all the
technical requirements of the present document at all times when operating within the boundary limits of the declared
environmental profile.
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4.2 Conformance Requirements
4.2.1 Applicability
4.2.1.1 Equipment with multiple functions
Any ground station which includes the interrogator function shall comply with the requirements in clause 4.2.2 to
clause 4.2.5.
Any ground station which includes the receiver function shall comply with the requirements in clause 4.2.6 to
clause 4.2.12.
4.2.2 Transmitter operating frequency and frequency error
4.2.2.1 Definition
The operating frequency is the nominal value of the carrier frequency.
The frequency error is the difference between the actual carrier frequency and its nominal value of 1 030 MHz.
4.2.2.2 Limits
The nominal value of carrier frequency of the interrogation and control transmissions shall be 1 030 MHz.
The absolute value of the frequency error shall not exceed 0,01 MHz as specified in ICAO Annex 10, Volume IV [1],
clause 3.1.2.1.1.
NOTE: This limit is stricter than the requirement defined in the ITU Radio Regulations [i.2], Appendix 2.
4.2.2.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.4.1.
4.2.3 Spectrum mask
4.2.3.1 Definition
A spectrum mask is a set of limit lines applied to a plot of a transmitter spectrum. The purpose is to constrain emissions
at frequencies in the Out of Band domain which lies immediately outside the intended Operating Channel.
The Out of Band domain extends to ± 125 MHz from the nominal operating frequency of 1 030 MHz. The frequencies
outside the Out of Band domain are defined as the spurious domain.
The definition of the spectrum mask is chosen as an alternative method to the specification of Out of Band domain
emissions.
4.2.3.2 Limits
The measured spectrum shall be below the limit lines shown in Figure 1.
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Figure 1: Spectrum mask for an interrogator transmitter
The spectrum mask specified in ICAO Annex 10, Volume 4 [1], Figure 3-2 has been modified in order to be consistent
with the ITU Radio Regulations [i.2], Appendix 3. The ICAO mask was extrapolated from the last three steps to
determine when the mask would intercept the -60 dB point. A value of approximately 125 MHz was reached. 125 MHz
is also the point reached when extrapolating the mask from the -40 dB (i.e. 40 MHz) by -40 dB per decade, which is the
design objective for the 60 dBpp systems reflected in ECC REC (02) 05 [i.4], Table 3 until the spurious limit is reached.
This is also reflected in ECC REC (02)05 [i.4], Figure A2.1, item a), the Emission Mask for radars.
4.2.3.3 Conformance
The conformance tests shall be as defined in clause 5.4.2.
4.2.4 Residual Power Output
4.2.4.1 Definition
The residual power output is the power output when not in the active state (i.e. between transmissions).
4.2.4.2 Limits
The residual power output shall be not greater than -47 dBm above 1 GHz and -57 dBm at and below 1 GHz as
specified in ERC Recommendation 74-01 [3], Annex 5, Table 15.
4.2.4.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.4.3.
4.2.5 Spurious emissions of transmitter in active mode
4.2.5.1 Definition
Spurious emissions are unwanted emissions in the spurious domain. For active transmitters, the spurious domain is all
frequencies apart from the operating channel and the Out-of-Band domain.
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4.2.5.2 Limits
The power of any unwanted emission in the spurious domain shall not exceed -13 dBm or 60 dB below PEP (whichever
is less stringent) as specified in ERC Recommendation 74-01 [3], Annex 5, Table 15.
4.2.5.3 Conformance
The conformance tests for this requirement shall be as defined in clause 5.4.4.
4.2.6 Sensitivity variation over the operating frequency range
4.2.6.1 Definition
The receiver sensitivity is the ability to receive a wanted signal at low input signal levels while providing a pre-
determined level of performance. The operating frequency range is the frequency range around the nominal operating
frequency over which reception of signals can be achieved.
4.2.6.2 Limits
The sensitivity shall not degrade by more than 3 dB as the incoming signal is offset by a tolerance of 1 MHz.
4.2.6.3 Conformance
The conformance tests shall be as defined in clause 5.5.1.
4.2.7 RF selectivity and spurious response rejection
4.2.7.1 Definition
RF selectivity and spurious response rejection are the ability of the EUT to avoid erroneous reception of signals from
outside the desired frequency band.
Limits are evaluated assuming the signal is constructed as a valid Mode S waveform except that the frequency is
altered. Although a 1 090 MHz system has only a single frequency channel, DME systems may occupy adjacent
frequency allocations within the aviation band. It is important that the receiver rejects signals which are out of band
while retaining sufficient bandwidth for acceptable multilateration performance.
4.2.7.2 Limits
The EUT shall reject signals such that the signal level of a valid message shall be increased by at least the value given
for the frequency offset in Table 1 before the signal is received with a probability of 90 %.
NOTE 1: The limits were derived from receiver Out-of-Band rejection characteristics that are used within the
industry for receivers that are used for both ADS-B and multilateration.
NOTE 2: These limits use valid Mode S signals in order to be a more stringent requirement for the receiver
rejection.
Table 1: Minimum rejection level for messages
Frequency Offset (MHz) Minimum Rejection level (dB)
± 12,5 3
± 19 20
± 29 40
± 46 60
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EXAMPLE: Assume the EUT receives a valid signal at
...