SIST EN 302 297 V1.1.1:2005
(Main)Electromagnetic compatibility and Radio spectrum Matters (ERM); Transmitting equipment for the analogue television broadcasting service; Harmonized EN under article 3.2 of the R&TTE Directive
- Abstract
To develop a Harmonised Standard providing requirements under article 3.2 of the R&TTE Directive covering analogue Television, based on existing ITU, EBU & CEPT technical specifications or other documents where appropriate.
- Status
- Published
- Publication Date
- 30-Apr-2005
- Technical Committee
- RES - Radio equipment and systems
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-May-2005
- Due Date
- 01-May-2005
- Completion Date
- 01-May-2005
- Mandate
- M/284
SIST EN 302 297 V1.1.1:2005 is the Slovenian adoption of ETSI EN 302 297 V1.1.1, a harmonized European standard for transmitting equipment used in the analogue television broadcasting service. It specifies radio spectrum and electromagnetic compatibility-related requirements under article 3.2 of the R&TTE Directive for analogue TV transmitters with 7 MHz and 8 MHz RF channel bandwidths in CEPT bands. In practice, it helps manufacturers, test labs, and conformity assessors check whether a transmitter uses the spectrum efficiently and keeps unwanted emissions under control.
What does SIST EN 302 297 V1.1.1:2005 specify?
SIST EN 302 297 V1.1.1:2005 applies to transmitting equipment for analogue television broadcasting service, specifically television transmitter equipment with 7 MHz and 8 MHz RF channel bandwidths operating in CEPT frequency bands. Its purpose is to support article 3.2 of the R&TTE Directive, which deals with effective use of the allocated radio spectrum and avoidance of harmful interference.
The document is organized into four main clauses plus three annexes:
| Annex | What it covers |
|---|---|
| Annex A | General measuring arrangements for antenna port and enclosure port tests |
| Annex B | Bibliography |
| Annex C | Official EN title in the languages listed |
The main body covers scope, references, definitions, and technical requirements. Other ENs may also apply when equipment has to meet additional essential requirements under other parts of article 3.
What are the key requirements of SIST EN 302 297 V1.1.1:2005?
Environmental profile and operating conditions
Clause 4.1 requires the supplier to declare the environmental profile, and the equipment has to meet the standard across the declared operating range. In practice, this means the transmitter is not only checked once under ideal lab conditions - its compliance has to hold within the environmental limits the supplier specifies for normal use.
Spurious emissions at the antenna port
Clause 4.2.1 covers spurious emissions, meaning unwanted emissions outside the necessary bandwidth that can be reduced without affecting transmission. The transmitter is tested at the lowest operating frequency, the highest operating frequency, and one frequency midway between them, using the normal operating environment and the setup in Annex A.1.1.
The measurement method uses a test signal generator, a coupling device, a test load, and a spectrum analyser. Annex A.1.2 gives the practical frequency ranges and reference bandwidths used for spurious measurements. The limits in clause 4.2.1.3 depend on transmitter mean power and use absolute or relative levels. For the reader, that means the correct limit must be chosen from the transmitter power class before a result can be judged compliant.
Out-of-band emissions and spectrum masks
Clause 4.2.2 covers out-of-band emissions, which are emissions immediately outside the necessary bandwidth caused by modulation, excluding spurious emissions. The same representative test frequencies and basic setup are used, but with the test signal defined for out-of-band measurements in Annex A.1.3.2.
This part is more detailed than the spurious emission check because the document uses spectrum masks for 7 MHz and 8 MHz analogue TV systems. It covers negative and positive modulation and 0.75 MHz or 1.25 MHz vestigial side band (VSB) arrangements. The measurement bandwidth is 50 kHz, and the masks extend across the occupied channel edges into the adjacent spectrum. Practically, this means the transmitter must stay within a shaped emission envelope, not just pass a single point limit.
Transmitter muting during frequency shift
Clause 4.2.3 addresses transmitter muting during frequency shift, which is relevant for frequency-agile transmitters and systems with frequency control loops. During retuning, emissions have to be suppressed, and the limit uses the same spurious emission limits as clause 4.2.1. For engineers, this means the transmitter must not radiate uncontrolled energy while changing channel or recovering control.
Cabinet radiation and enclosure port measurements
Clause 4.3.1 covers cabinet radiation, meaning radiated emissions from the enclosure rather than from the antenna port. The measurement method follows EN 55022, or EN 55011 if the physical size of the equipment makes that necessary. Measurements are made outside the exclusion band around the transmitter channel, and the configuration has to represent normal operation as closely as practical.
The radiated emission limits apply from 30 MHz to 4.5 GHz and are power-dependent. The test is normally done at 10 m where feasible, and other distances may be used with a distance correction. In practice, this is the check that catches leakage from cabinets, cables, and internal circuitry, not just the intended RF output.
Measurement uncertainty
Clause 4.4 requires measurement uncertainty to be calculated and minimized, and the uncertainty is applied to the limit. If a result falls below the adjusted limit, it is acceptable. This matters because borderline results need an uncertainty-aware assessment rather than a simple pass/fail reading.
What terms does SIST EN 302 297 V1.1.1:2005 define?
- Antenna port - the equipment port intended for connection to an antenna using coaxial cable in normal operation.
- Environmental profile - the range of environmental conditions within which the equipment has to comply with this standard.
- Out-of-band emissions - emissions immediately outside the necessary bandwidth that come from the modulation process.
- Spurious emissions - unwanted emissions outside the necessary bandwidth that can be reduced without affecting transmission.
- Cabinet radiation - radiation from the enclosure of the equipment, excluding radiation from connected antennas or cables.
- Equipment Under Test (EUT) - the transmitter being measured in the compliance test setup.
- Vestigial Side Band (VSB) - the transmission arrangement used in the spectrum masks for the analogue TV systems covered here.
Who uses SIST EN 302 297 V1.1.1:2005?
SIST EN 302 297 V1.1.1:2005 is used by transmitter manufacturers, RF design engineers, compliance laboratories, and certification or conformity assessment teams. Broadcasters and system integrators use it when selecting, specifying, or accepting analogue television transmitter equipment.
Quality managers and buyers use it to define acceptance criteria and to check that the supplied transmitter matches the required channel bandwidth, operating band, and emission performance. Test labs use it to set up measurements, choose the correct bandwidths and masks, and document results for type testing or verification.
Which standards are used with SIST EN 302 297 V1.1.1:2005?
- ETSI EN 301 489-14 - gives the EMC standard for analogue and digital terrestrial TV broadcasting service transmitters, and is listed as directly associated with this document.
- CENELEC EN 55022 - provides the measurement method used for cabinet radiation when the equipment size allows it.
- CENELEC EN 55011 - provides the alternative cabinet-radiation measurement method when physical size is a restriction.
- IEC 60489-1 + Am1 - gives general definitions and standard measurement conditions for radio equipment, and Annex A points to it for guidance on radiated-emission measurement methods.
What does the SIST EN 302 297 V1.1.1:2005 document contain?
- Step-by-step measurement methods for spurious emissions, out-of-band emissions, transmitter muting during frequency shift, and cabinet radiation.
- Test arrangements in Annex A, including the generator, coupling device, test load, measuring antenna, and spectrum analyser connections.
- Spectrum masks, break points, end-point values, and limit figures for analogue TV systems with 7 MHz and 8 MHz channels.
- Frequency ranges and reference bandwidths for unwanted-emission measurements, plus guidance on test signals for different emission types.
- A cabinet-radiation method that includes exclusion bands, operating mode selection, distance correction, and uncertainty handling for compliance work.
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Frequently Asked Questions
SIST EN 302 297 V1.1.1:2005 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Electromagnetic compatibility and Radio spectrum Matters (ERM); Transmitting equipment for the analogue television broadcasting service; Harmonized EN under article 3.2 of the R&TTE Directive". This standard covers: To develop a Harmonised Standard providing requirements under article 3.2 of the R&TTE Directive covering analogue Television, based on existing ITU, EBU & CEPT technical specifications or other documents where appropriate.
To develop a Harmonised Standard providing requirements under article 3.2 of the R&TTE Directive covering analogue Television, based on existing ITU, EBU & CEPT technical specifications or other documents where appropriate.
SIST EN 302 297 V1.1.1:2005 is classified under the following ICS (International Classification for Standards) categories: 33.060.20 - Receiving and transmitting equipment; 33.100.01 - Electromagnetic compatibility in general; 33.170 - Television and radio broadcasting. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 302 297 V1.1.1:2005 is associated with the following European legislation: EU Directives/Regulations: 1999/5/EC, TRRTP124; Standardization Mandates: M/284. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 302 297 V1.1.1:2005 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2005
(OHNWURPDJQHWQD]GUXåOMLYRVWLQ]DGHYHY]YH]L]UDGLMVNLPVSHNWURP (50
2GGDMQLãNDRSUHPD]DDQDORJQRWHOHYL]LMVNRUDGLRGLIX]LMVNRVWRULWHY
+DUPRQL]LUDQL(1YVNODGXVþOHQRPGLUHNWLYH5 77(
Electromagnetic compatibility and Radio spectrum Matters (ERM); Transmitting
equipment for the analogue television broadcasting service; Harmonized EN under
article 3.2 of the R&TTE Directive
Ta slovenski standard je istoveten z: EN 302 297 Version 1.1.1
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
33.170 Televizijska in radijska Television and radio
difuzija broadcasting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
Candidate Harmonized European Standard (Telecommunications series)
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Transmitting equipment for the
analogue television broadcasting service;
Harmonized EN under article 3.2
of the R&TTE Directive
2 ETSI EN 302 297 V1.1.1 (2005-01)
Reference
DEN/ERM-TG17-002
Keywords
analogue, broadcasting, radio, regulation,
terrestrial, TV
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The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2005.
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ETSI
3 ETSI EN 302 297 V1.1.1 (2005-01)
Contents
Intellectual Property Rights.5
Foreword.5
Introduction .6
1 Scope.8
2 References.8
3 Definitions, symbols and abbreviations .9
3.1 Definitions.9
3.2 Symbols.10
3.3 Abbreviations.10
4 Technical requirements specifications.11
4.1 Environmental profile.11
4.2 Antenna port measurements.11
4.2.1 Spurious emissions.11
4.2.1.1 Definition.11
4.2.1.2 Method of measurement (essential test suite) .11
4.2.1.2.1 Initial conditions.11
4.2.1.2.2 Procedure.11
4.2.1.2.3 Test requirements.11
4.2.1.3 Limit.12
4.2.2 Out-of-band emissions.12
4.2.2.1 Definition.12
4.2.2.2 Method of measurement (essential test suite) .13
4.2.2.2.1 Initial conditions.13
4.2.2.2.2 Procedure.13
4.2.2.2.3 Test requirements.13
4.2.2.3 Limit.13
4.2.2.3.1 Spectrum masks for 7 MHz and 8 MHz analogue television systems.13
4.2.3 Transmitter muting during frequency shift .19
4.2.3.1 Definition.19
4.2.3.2 Method of measurement (essential test suite) .19
4.2.3.2.1 Initial conditions.19
4.2.3.2.2 Procedure.20
4.2.3.2.3 Test requirements.20
4.2.3.3 Limit.20
4.3 Enclosure port measurements (radiated emissions).20
4.3.1 Cabinet radiation.20
4.3.1.1 Definition.20
4.3.1.2 Method of measurement (essential test suite) .20
4.3.1.2.1 Initial conditions.20
4.3.1.2.2 Procedure.21
4.3.1.2.3 Test requirements.21
4.3.1.3 Limit.21
4.4 Measurement uncertainties.22
Annex A (normative): General measuring arrangements.23
A.1 Testing arrangements for antenna port measurements .23
A.1.1 Spurious and out-of-band emissions .23
A.1.2 Test frequency range .23
A.1.3 Test modulating signal .24
A.1.3.1 Spurious emissions.24
A.1.3.2 Out-of-band emissions.24
A.2 Testing arrangements for enclosure port (radiated emissions) measurements .24
ETSI
4 ETSI EN 302 297 V1.1.1 (2005-01)
Annex B (informative): Bibliography.25
Annex C (informative): The EN title in the official languages .26
History .27
ETSI
5 ETSI EN 302 297 V1.1.1 (2005-01)
Intellectual Property Rights
IPRs essential or potentially essential to the present document 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 (http://webapp.etsi.org/IPR/home.asp).
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.
Foreword
This Candidate Harmonized European Standard (Telecommunications series) has been produced by ETSI Technical
Committee Electromagnetic compatibility and Radio spectrum Matters (ERM).
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC [1] (as amended) laying down a procedure for the provision of information in the
field of technical standards and regulations.
The present document is intended to become a Harmonized Standard, the reference of which will be published in the
Official Journal of the European Communities referencing the Directive 1999/5/EC of the European Parliament and of
the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual
recognition of their conformity ("the R&TTE Directive" [2]).
National transposition dates
Date of adoption of this EN: 21 January 2005
Date of latest announcement of this EN (doa): 30 April 2005
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 October 2005
Date of withdrawal of any conflicting National Standard (dow): 31 October 2006
ETSI
6 ETSI EN 302 297 V1.1.1 (2005-01)
Introduction
The present document is part of a set of standards designed to fit in a modular structure to cover all radio and
telecommunications terminal equipment under the R&TTE Directive [2]. Each standard is a module in the structure.
The modular structure is shown in figure 1.
Disability*
3.3f
Emergency*
3.3e
Fraud*
3.3d
3.3c
Privacy*
No harm to the network*
3.3b
* If needed
Scoped by
Interworking via the network*
equipment
3.3a class or type
Interworking with the network
Use of spectrum
3.2
New radio harmonized standards
Spectrum
Scoped by frequency and/or equipment type
Radio Product EMC
EN 301 489 multi-part EMC standard
3.1b
EMC
Generic and product standards also notified under EMC Directive
- If needed, new standards for human exposure to
Electromagnetic Fields,
- if needed, new standards for acoustic safety
3.1a
Standards also notified under LV Directive
Safety
Non-radio Radio (RE)
TTE Non-TTE
Figure 1: Modular structure for the various standards used under the R&TTE Directive [2]
ETSI
7 ETSI EN 302 297 V1.1.1 (2005-01)
The left hand edge of the figure 1 shows the different clauses of Article 3 of the R&TTE Directive [2].
For article 3.3 various horizontal boxes are shown. Dotted lines indicate that at the time of publication of the present
document essential requirements in these areas have to be adopted by the Commission. If such essential requirements
are adopted, and as far and as long as they are applicable, they will justify individual standards whose scope is likely to
be specified by function or interface type.
The vertical boxes show the standards under article 3.2 for the use of the radio spectrum by radio equipment. The
scopes of these standards are specified either by frequency (normally in the case where frequency bands are
harmonized) or by radio equipment type.
For article 3.1b the diagram shows EN 301 489, the multi-part product EMC standard for radio used under the EMC
Directive [3].
For article 3.1a the diagram shows the existing safety standards currently used under the LV Directive [4] and new
standards covering human exposure to electromagnetic fields. New standards covering acoustic safety may also be
required.
The bottom of the figure shows the relationship of the standards to radio equipment and telecommunications terminal
equipment. A particular equipment may be radio equipment, telecommunications terminal equipment or both. A radio
spectrum standard will apply if it is radio equipment. An article 3.3 standard will apply as well only if the relevant
essential requirement under the R&TTE Directive [2] is adopted by the Commission and if the equipment in question is
covered by the scope of the corresponding standard. Thus, depending on the nature of the equipment, the essential
requirements under the R&TTE Directive [2] may be covered in a set of standards.
The modularity principle has been taken because:
• it minimizes the number of standards needed. Because equipment may, in fact, have multiple interfaces and
functions it is not practicable to produce a single standard for each possible combination of functions that may
occur in an equipment;
• it provides scope for standards to be added:
- under article 3.2 when new frequency bands are agreed; or
- under article 3.3 should the Commission take the necessary decisions
without requiring alteration of standards that are already published;
• it clarifies, simplifies and promotes the usage of Harmonized Standards as the relevant means of conformity
assessment.
Other documents directly associated with the present document:
• EN 301 489-14 [5].
ETSI
8 ETSI EN 302 297 V1.1.1 (2005-01)
1 Scope
The present document applies to transmitting equipment for the analogue television broadcasting service.
The types of equipment covered by the present document are as follows:
• Television transmitter equipment for analogue television broadcasting service, with 7 MHz and 8 MHz RF
channel bandwidths, operating in the CEPT frequency bands. These frequencies are currently within the
television Bands I, III, IV and V.
The present document is intended to cover the provisions of article 3.2 of Directive 1999/5/EC [2] (R&TTE Directive),
which states that "… radio equipment shall be so constructed that it effectively uses the spectrum allocated to
terrestrial/space radio communications and orbital resources so as to avoid harmful interference".
In addition to the present document, other ENs that specify technical requirements in respect of essential requirements
under other parts of article 3 of the R&TTE Directive [2] may apply to equipment within the scope of the present
document.
NOTE: A list of such ENs is included on the web site http://www.newapproach.org.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
[1] Council Directive 98/34/EC of the European Parliament and of the Council of 22 June 1998 laying
down a procedure for the provision of information in the field of technical standards and
regulations.
[2] Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio
equipment and telecommunications terminal equipment and the mutual recognition of their
conformity (R&TTE Directive).
[3] Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of the Member
States relating to electromagnetic compatibility (EMC Directive).
[4] Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the laws of the
Member States relating to electrical equipment designed for use within certain voltage limits
(LV Directive).
[5] ETSI EN 301 489-14 (V1.2.1): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services;
Part 14: Specific conditions for analogue and digital terrestrial TV broadcasting service
transmitters".
[6] CENELEC EN 55022 (1998): "Information technology equipment - Radio disturbance
characteristics - Limits and methods of measurement".
[7] CENELEC EN 55011 (1998): "Industrial, scientific and medical (ISM) radio-frequency
equipment - Radio disturbance characteristics - Limits and methods of measurement.
ETSI
9 ETSI EN 302 297 V1.1.1 (2005-01)
[8] IEC 60489-1 + Am1 (1996) + Am2 (1999): "Methods of measurement for radio equipment used in
the mobile services. Part 1: General definitions and standard conditions of measurement".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
antenna port: port of an apparatus which is designed, in normal operation, to be connected to an antenna using coaxial
cable
analogue signal: signal in which the characteristic quantity representing information may at any instant assume any
value within a continuous interval
analogue television: television in which picture information is represented by an analogue signal
NOTE: Sound information can be represented by an analogue and/or digital signal
broadcasting service: radiocommunication service in which the transmissions are intended for direct reception by the
general public
NOTE: This service may include sound transmissions, television transmissions or other types of transmission
cabinet radiation: radiation from an enclosure containing equipment, excluding radiation from connected antennas or
cables
carrier power: average power supplied to the antenna port by a transmitter during one radio frequency cycle taken
under the condition of no modulation
class of emission: set of characteristics of an emission designated by standard symbols, e.g. type of modulation of the
main carrier, modulating signal, type of information to be transmitted, and also, if appropriate, any additional signal
characteristics
dBc: decibels relative to the unmodulated carrier power of the emission
NOTE: In the cases which do not have a carrier, for example in some digital modulation schemes where the
carrier is not accessible for measurement, the reference level equivalent to dBc is decibels relative to the
mean power.
digital signal: discretely timed signal in which information is represented by a finite number of well defined discrete
values that its characteristic quantities may take in time
enclosure port: physical boundary of the apparatus through which electromagnetic fields may radiate or impinge
NOTE: In the case of integral antenna equipment, this port is inseparable from the antenna port.
environmental profile: range of environmental conditions under which equipment within the scope of EN 302 297 is
required to comply with the provisions of EN 302 297
exclusion band: band of radio frequencies where no measurements are made
harmonic: component of order greater than 1 of the Fourier series of a periodic quantity
harmonic number: integral number given by the ratio of the frequency of a harmonic to the fundamental frequency
nd
EXAMPLE: (2 harmonic = 2 x fundamental frequency).
intermodulation products: unwanted frequencies resulting from intermodulation between carriers or harmonics of
emission or between any oscillations generated to produce the carrier
ETSI
10 ETSI EN 302 297 V1.1.1 (2005-01)
mean power: average power supplied to the antenna port by a transmitter during an interval of time sufficiently long
compared with the lowest frequency encountered in the modulation taken under normal operating conditions
NOTE: For analogue television transmissions, the mean power level is defined with a specified video signal
modulation. This video signal has to be chosen in such a way that the maximum mean power level (e.g. at
the video signal blanking level for PAL) is provided to the antenna transmission line.
necessary bandwidth: for a given class of emission, the width of the frequency band which is sufficient to ensure the
transmission of information at the rate and with the quality required under specified conditions
out-of-band emissions: emission on a frequency or frequencies immediately outside the necessary bandwidth which
results from the modulation process, but excluding spurious emissions
rated output power: rated output power is the power that the transmitter or transposer shall deliver at its output under
specified conditions of operation
reference bandwidth: bandwidth in which the emission level is specified
spurious emissions: emission on a frequency or frequencies which are outside the necessary bandwidth and the level of
which may be reduced without affecting the corresponding transmission of information Spurious emissions include
harmonic emissions, parasitic emissions, intermodulation products and frequency conversion products but exclude
out-of-band emissions
television transmitter: used in EN 302 297 to refer to that equipment with a video input and one or more audio inputs
and a combined vision and sound radio frequency output
unwanted emissions: consist of spurious emissions and out-of-band emissions
letterbox operation: transmission of a picture format with an aspect ratio greater than 1,33, in such a way that empty
(black
...