SIST EN 302 077-1 V1.1.1:2006

SLOVENSKI STANDARD
01-marec-2006
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Electromagnetic compatibility and Radio spectrum Matters (ERM); Transmitting
equipment for the Terrestrial - Digital Audio Broadcasting (T-DAB) service; Part 1:
Technical characteristics and test methods
Ta slovenski standard je istoveten z: EN 302 077-1 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.

European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Transmitting equipment for the
Terrestrial - Digital Audio Broadcasting (T-DAB) service;
Part 1: Technical characteristics and test methods

2 ETSI EN 302 077-1 V1.1.1 (2005-01)

Reference
DEN/ERM-TG17WG2-002-1
Keywords
audio, broadcasting, DAB, digital, radio, terrestrial
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ETSI
3 ETSI EN 302 077-1 V1.1.1 (2005-01)

Contents
Intellectual Property Rights.5
Foreword.5
Introduction .5
1 Scope.6
2 References.6
3 Definitions, symbols and abbreviations .7
3.1 Definitions.7
3.2 Symbols.8
3.3 Abbreviations.8
4 Technical requirements specifications.9
4.1 Environmental profile.9
4.2 Transmitter output characteristics .9
4.2.1 Rated output power.9
4.2.1.1 Definition.9
4.2.1.2 Method of measurement.9
4.2.1.2.1 Initial conditions.9
4.2.1.2.2 Procedure.9
4.2.1.2.3 Test requirements.10
4.2.1.3 Limit.10
4.2.2 Frequency stability.10
4.2.2.1 Definition.10
4.2.2.2 Method of measurement.10
4.2.2.2.1 Initial conditions.10
4.2.2.2.2 Procedure.10
4.2.2.2.3 Test requirements.10
4.2.2.3 Limit.11
4.2.3 Crest factor.11
4.2.3.1 Definition.11
4.2.3.2 Method of measurement.11
4.2.3.2.1 Initial conditions.11
4.2.3.2.2 Procedure.11
4.2.3.2.3 Test requirements.11
4.2.3.3 Limit.12
4.3 Digital signal processing.12
4.3.1 Signal delay of T-DAB transmitters .12
4.3.1.1 Definition.12
4.3.1.2 Method of measurement.12
4.3.1.2.1 Initial conditions.12
4.3.1.2.2 Procedure.12
4.3.1.2.3 Test requirements.12
4.3.1.3 Limit.12
4.3.2 Behaviour in case of erroneous ETI signal .12
4.3.2.1 Definition.12
4.3.2.2 Method of measurement.13
4.3.2.2.1 Initial conditions.13
4.3.2.2.2 Procedure.13
4.3.2.2.3 Test requirements.13
4.3.2.3 Limit.13
4.3.3 BER-Performance degradation.13
4.3.3.1 Definition.13
4.3.3.2 Method of measurement.13
4.3.3.2.1 Initial conditions.13
4.3.3.2.2 Procedure.14
ETSI
4 ETSI EN 302 077-1 V1.1.1 (2005-01)

4.3.3.2.3 Test requirements.14
4.3.3.3 Limit.14
4.4 Antenna port measurements.14
4.4.1 Spurious emissions.14
4.4.1.1 Definition.14
4.4.1.2 Method of measurement (essential test suite) .15
4.4.1.2.1 Initial conditions.15
4.4.1.2.2 Procedure.15
4.4.1.2.3 Test requirements.15
4.4.1.3 Limit.15
4.4.2 Out-of-band emissions.17
4.4.2.1 Definition.17
4.4.2.2 Method of measurement (essential test suite) .17
4.4.2.2.1 Initial conditions.17
4.4.2.2.2 Procedure.17
4.4.2.2.3 Test requirements.17
4.4.2.3 Limit.17
4.5 Enclosure port measurements (radiated emissions).21
4.5.1 Cabinet radiation.21
4.5.1.1 Definition.21
4.5.1.2 Method of measurement (essential test suite) .21
4.5.1.2.1 Initial conditions.21
4.5.1.2.2 Procedure.21
4.5.1.2.3 Test requirements.21
4.5.1.3 Limit.22
4.6 Measurement uncertainties.23
Annex A (normative): General measuring arrangements.24
A.1 Testing arrangements for antenna port measurements .24
A.1.1 Spurious emissions.24
A.1.2 Out-of-band emissions.25
A.1.3 Test frequency range .25
A.1.4 Test modulating signal .26
A.2 Testing arrangements for enclosure port (radiated emissions) measurements .26
Annex B (informative): Typical COFDM measuring arrangements.27
B.1 ETI errors.27
B.2 Bit Error performance measurement .27
B.2.1 Test procedure.27
Annex C (informative): Measurement of the overall delay of a T-DAB transmitter .29
Annex D (informative): Delay type and delay management.31
Annex E (informative): Spectrum measurements .32
Annex F (informative): Bibliography.33
History .34

ETSI
5 ETSI EN 302 077-1 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 European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM).
The present document is part 1 of a multi-part deliverable covering the Electromagnetic compatibility and Radio
spectrum Matters (ERM); Transmitting equipment for the Terrestrial - Digital Audio Broadcasting (T-DAB) service, as
identified below:
Part 1: "Technical characteristics and test methods";
Part 2: "Harmonized EN under article 3.2 of R&TTE Directive".

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 2005

Introduction
The present document covers a set of non mandatory technical parameters that are considered to be the minimum
requirement for the design and operation of a T-DAB sound broadcasting service.
Other documents directly associated with the present document:
• EN 302 077-2 [1];
• EN 301 489-11 [2].
ETSI
6 ETSI EN 302 077-1 V1.1.1 (2005-01)

1 Scope
The present document applies to the following radio telecommunications terminal equipment types:
- Digital Audio Broadcast - Terrestrial equipment used in the sound broadcasting service.
NOTE: At the time the present document was drafted, the following bands were allocated to T-DAB (Wiesbaden
agreement, Maastricht agreement (see bibliography)):
47 MHz to 68 MHz;
174 MHz to 240 MHz;
1 452 MHz to 1 492 MHz.
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] ETSI EN 302 077-2: "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Transmitting equipment for the Terrestrial - Digital Audio Broadcasting (T-DAB) service;
Part 2: Harmonized EN under article 3.2 of the R&TTE Directive".
[2] ETSI EN 301 489-11: "Electromagnetic compatibility and Radio spectrum Matters (ERM);
ElectroMagnetic Compatibility (EMC) standard for radio equipment and services;
Part 11: Specific conditions for terrestrial sound broadcasting service transmitters".
[3] ETSI ETS 300 799: "Digital Audio Broadcasting (DAB); Distribution interfaces; Ensemble
Transport Interface (ETI)".
[4] CENELEC EN 55022: "Information technology equipment - Radio disturbance characteristics -
Limits and methods of measurement".
[5] CENELEC EN 55011: "Industrial, scientific and medical (ISM) radio-frequency equipment -
Radio disturbance characteristics - Limits and methods of measurement".
[6] IEC 60489-1 amendment 2: "Methods of measurement for radio equipment used in the mobile
services. Part 1: General definitions and standard conditions of measurement".
[7] ETSI TR 100 028 (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics".
ETSI
7 ETSI EN 302 077-1 V1.1.1 (2005-01)

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
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
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 P.
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 302 077-1 is
required to comply with the provisions of EN 302 077-1
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
(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
L-band: for the purpose of these document L-band is defined as the frequency range from 1 452 MHz to 1 492 MHz
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 envelope taken under normal operating conditions
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: 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
ETSI
8 ETSI EN 302 077-1 V1.1.1 (2005-01)

RMS power: the apparent power of an AC power that is calculated by multiplying root-mean-square (rms) current by
the root mean square voltage
NOTE 1: In a purely resistive circuit this is held to be the equivalent heating effect of a DC power and can be
deemed to be true power. In a circuit that consists of reactance as well as resistance the apparent power is
greater than the true power (the vector difference between true power and apparent power is called
reactive power).
True Power = Vrms x (Irms ∆ cos Ø)
Where Δ cos Ø is the phase difference between voltage and current introduced by the reactance of the
load.
NOTE 2: From the above definition it becomes clear that unless any measuring system can be completely devoid of
reactance then the measured power cannot be considered to be RMS power. It therefore becomes apparent
that this parameter would be difficult to measure with any degree of accuracy at RF frequencies.
spurious emissions: emissions 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.
unwanted emissions: consist of spurious emissions and out-of-band emissions
3.2 Symbols
For the purposes of the present document, the following symbols apply:
C/N Carrier power to Noise power density
-6
μ micro, 10
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BER Bit Error Ratio
COFDM Coded Orthogonal Frequency Division Multiplex
CRC Cyclic Redundancy Check
CW Continuous Wave
EMC ElectroMagnetic Compatibility
ETI Ensemble Transport Interface
EUT Equipment Under Test
FIB Fast Information Blocks
FIC Fast Information Channel
Hz Hertz (cycles per second)
IEC International Electrotechnical Commission
IF Intermediate Frequency
ITU International Telecommunications Union
LV Low Voltage
N Noise power
NI Network Independent layer
PRBS Pseudo Random Binary Sequence
R&TTE Radio and Telecommunications Terminal Equipment
RF Radio Frequency
rms root mean square
SFN Single Frequency Network
T-DAB Terrestrial - Digital Audio Broadcast
Tx Transmitter
V Volt
VHF Very High Frequency
W Watt
ETSI
9 ETSI EN 302 077-1 V1.1.1 (2005-01)

4 Technical requirements specifications
4.1 Environmental profile
The environmental profile for operation of the equipment shall be declared by the supplier. The equipment shall comply
with all the technical requirements of the present document at all times when operating within the boundary limits of the
required operational environmental profile.
4.2 Transmitter output characteristics
4.2.1 Rated output power
4.2.1.1 Definition
The rated output power is the power that the transmitter shall deliver at its antenna port under the manufacturers
specified conditions of operation.
NOTE: It is, however, recommended that this parameter is not quoted as RMS power.
4.2.1.2 Method of measurement
4.2.1.2.1 Initial conditions
Test environment:
The normal operating environment, as declared by the equipment manufacturer.
Test frequencies:
a) the lowest operating frequency of the EUT;
b) the highest operating frequency of the EUT;
c) a frequency mid-way between a) and b) above.
Test arrangement: (see figure A.1)
1) all ports unused at the time of testing shall be correctly terminated;
2) connect the EUT to the Test Load, via the Coupling Device or via the attenuator;
3) connect the measuring device to the Coupling Device or attenuator.
4.2.1.2.2 Procedure
The power of the signal of a T-DAB transmitter is defined as the long-term average of the time-varying short-term
signal power. An appropriate instrument for T-DAB power measurements is a thermal power meter.
NOTE: The signal power is constant symbol by symbol. A certain short-term variation is especially given by the
Null symbol.
ETSI
10 ETSI EN 302 077-1 V1.1.1 (2005-01)

4.2.1.2.3 Test requirements
The results obtained shall be compared to the limits in clause 4.2.1.3 in order to demonstrate compliance.
4.2.1.3 Limit
The output power shall be within ±0,5 dB of the rated output power under normal operating conditions as defined by the
manufacturer.
4.2.2 Frequency stability
4.2.2.1 Definition
The frequency stability of an emission is the variation of frequency against a predetermined time scale.
4.2.2.2 Method of measurement
4.2.2.2.1 Initial conditions
Test environment:
The normal operating environment, as declared by the equipment manufacturer.
Test frequencies:
Any one frequency within the tuning range of the EUT.
Test arrangement: (see figure A.1)
1) all ports unused at the time of testing shall be correctly terminated;
2) connect the EUT to the Test Load, via the Coupling Device or via the attenuator;
3) connect the measuring device to the Coupling Device or attenuator.
NOTE: Alternatively the transmitter local oscillator may be measured in order to calculate the frequency stability
of the EUT RF output signal.
4.2.2.2.2 Procedure
The characteristic frequency may be measured with any suitable measuring device, provided that the accuracy attained
during the measurement is better than approximately 10 % of the frequency tolerance or the frequency stability given in
the relevant equipment specification of the transmitter.
For a tight frequency tolerance or a high degree of frequency stability, the measuring accuracy stated above puts higher
demands on the accuracy of the measuring equipment.
In this case, the measurements shall preferably be made with a recording instrument.
The accuracy of the measuring method, if known, shall be stated with the results of the measurements. If not known, an
estimate should be given.
The conditions of operation shall also be given together with the assigned frequency of the emission, which has been
used as the characteristic frequency.
4.2.2.2.3 Test requirements
The results obtained shall be compared to the limits in clause 4.2.2.3 in order to demonstrate compliance.
ETSI
11 ETSI EN 302 077-1 V1.1.1 (2005-01)

4.2.2.3 Limit
The centre frequency of the RF signal shall not deviate more than 10 % of the relevant carrier spacing from its nominal
value. This results in the following allowance for frequency deviation:
- transmission mode I < 100 Hz;
- transmission mode IV < 200 Hz;
- transmission mode II < 400 Hz;
- transmission mode III < 800 Hz.
The stability of the centre frequency shall be better than:
- transmission mode I ±10 Hz;
- transmission mode IV ±20 Hz;
- transmission mode II ±40 Hz;
- transmission mode III ±80 Hz;
within a three month period when measured under identical operating conditions at the start and at the end of the period.
4.2.3 Crest factor
4.2.3.1 Definition
Maximum ratio of peak power to mean power levels.
4.2.3.2 Method of measurement
4.2.3.2.1 Initial conditions
Test environment:
The normal operating environment, as declared by the equipment manufacturer.
Test frequencies:
a) the lowest operating frequency of the EUT;
b) the highest operating frequency of the EUT;
c) a frequency mid-way between a) and b) above.
Test arrangement: (see figure A.1)
1) all ports unused at the time of testing shall be correctly terminated;
2) connect the EUT to the Test Load, via the Coupling Device or attenuator;
3) connect the measuring device to the Coupling Device or attenuator.
4.2.3.2.2 Procedure
Using a suitable measuring device first record the peak power then record the mean power.
4.2.3.2.3 Test requirements
The results obtained shall be compared to the limits in clause 4.2.3.3 in order to demonstrate compliance.
ETSI
12 ETSI EN 302 077-1 V1.1.1 (2005-01)

4.2.3.3 Limit
The peak level of the output RF power signal shall not exceed the mean power level by more than 13 dB.
4.3 Digital signal processing
4.3.1 Signal delay of T-DAB transmitters
4.3.1.1 Definition
The overall signal delay of the T-DAB transmitter is the time difference from the start of the first bit of the ETI(NI)
frame with frame phase 0 to the start of the Null symbol of the corresponding transmission frame at the RF output.
(See ETS 300 799 [3], clause C.6).
4.3.1.2 Method of measurement
4.3.1.2.1 Initial conditions
Test environment:
The normal operating environment, as declared by the equipment manufacturer.
Test arrangement: (see figure C.2).
4.3.1.2.2 Procedure
A possible means of determining the delay of a transmitter is to insert a specific test pattern into the ETI signal and
observe the COFDM signal at IF or RF. Annex C provides details of a possible implementation of this method.
4.3.1.2.3 Test requirements
The results obtained shall be compared to the limits in clause 4.3.1.3 in order to demonstrate compliance.
4.3.1.3 Limit
Transmitters that are operated in SFNs (Single Frequency Networks) shall provide additional adjustable delay. This
adjustable delay shall allow the overall delay to be increased to at least 500 ms in all modes, with a maximum step of
1 µs.
Manual setting of the adjustable delay is the minimum requirement. Provision should be made for automatic dynamic
delay compensation.
NOTE: Adjustable delay may also be a requirement in particular situations when analogue and digital
transmissions have to be synchronized.
4.3.2 Behaviour in case of erroneous ETI signal
4.3.2.1 Definition
Operational status of transmitter during ETI signal error.
ETSI
13 ETSI EN 302 077-1 V1.1.1 (2005-01)

4.3.2.2 Method of measurement
4.3.2.2.1 Initial conditions
Test environment:
The normal operating environment, as declared by the equipment manufacturer.
Test arrangement: (see clause B.1).
4.3.2.2.2 Procedure
See annex B.
4.3.2.2.3 Test requirements
The results obtained shall be compared to the limits in clause 4.3.2.3 in order to demonstrate compliance.
4.3.2.3 Limit
The Minimum Requirements for Terrestrial DAB Transmitters shall be:
• P = 4;
• Q = 40;
• M = 80.
If the input signal is absent, or if frame synchronization is not achieved, the transmitter RF signal shall be muted in line
with spurious emission limits, clause 4.4.1.2.4.
If frame synchronization is achieved, but CRC violations are detected, the transmitter shall offer two alternative
responses:
a) The output RF signal is not affected by sporadic single CRC violations. The output RF signal is switched off
after P CRC violations in Q frames, and switched on after M consecutive frames free from CRC violations.
b) The output RF signal is transmitted irrespective of CRC violations.
After the warming-up time of the transmitter the output RF signal shall be stable within two seconds following the
application of an error-free input signal.
4.3.3 BER-Performance degradation
4.3.3.1 Definition
Difference between theoretical and actual BER degradation.
4.3.3.2 Method of measurement
4.3.3.2.1 Initial conditions
Test environment:
The normal operating environment, as declared by the equipment manufacturer.
Test arrangement: (see clause B.2).
ETSI
14 ETSI EN 302 077-1 V1.1.1 (2005-01)

4.3.3.2.2 Procedure
For this measurement a test receiver should be used. In principle only the degradation of the whole chain (transmitter
and receiver) can be assessed, but this can provide a useful indication of transmitter degradation.
The receiver is connected to the output of the transmitter (without insertion of a channel simulator). Error correction
shall be enabled in both the EUT and the receiver. Band limited noise is added to the T-DAB signal at the receiver input
in order to achieve a given value of BER. Adjustable attenuators are used to set both the input power (C) and the noise
power (N) to appropriate values at the input of the receiver. BER is the ratio of erroneous bits of the received data to the
total bits of the received data during the measurement interval. The power of the added noise, N, is measured within the
nominal T-DAB bandwidth of 1,536 MHz.
4.3.3.2.3 Test requirements
The results obtained shall be compared to the limits in clause 4.3.3.3 in order to demonstrate compliance.
4.3.3.3 Limit
An operational transmitter shall not degrade the theoretical system BER (with channel coding and decoding) by more
than 1 dB, under the conditions set out in tables 4.1 and 4.2.
Table 4.1: BER Performance degradation limits
Code Rate R for equal convolutional coding 0,5
Transmission modes all T-DAB modes
Theoretical performance according to table 4.2

Table 4.2: BER Performance degradation limits
BER C/N
-2
5,0 dB
1 × 10
-3
5,4 dB
3 × 10
-3
5,8 dB
1 × 10
-4
6,2 dB
3 × 10
-4
6,6 dB
1 × 10
-5
6,9 dB
3 × 10
-5
7,2 dB
1 × 10
-6
7,5 dB
3 × 10
-6
7,8 dB
1 × 10
Theoretical BER performance in Gaussian channel (equal error protection with R = 0,5).
4.4 Antenna port measurements
4.4.1 Spurious emissions
4.4.1.1 Definition
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.
For the purposes of the present document spurious emissions are emissions at frequencies outside the frequency range
f ± 3 MHz, where f is the centre frequency of the transmission, irrespective of the number of carriers employed.
0 0
ETSI
15 ETSI EN 302 077-1 V1.1.1 (2005-01)

4.4.1.2 Method of measurement (essential test suite)
4.4.1.2.1 Initial conditions
Test environment:
The normal operating environment, as declared by the equipment manufacturer.
Test frequencies:
a) the lowest operating frequency of the EUT;
b) the highest operating frequency of the EUT;
c) a frequency mid-way between a) and b) above.
Test arrangement: (see figure A.1)
1) all ports unused at the time of testing shall be correctly terminated;
2) connect the EUT to the Test Load, via the Coupling Device or via the attenuator;
3) connect the measuring device to the Coupling Device or attenuator.
4.4.1.2.2 Procedure
1) operate the EUT at each of the test frequencies as defined in clause 4.4.1.2.1;
2) measure the results on the Spectrum Analyser.
4.4.1.2.3 Test requirements
The results obtained shall be compared to the limits in clause 4.4.1.3 in order to demonstrate compliance.
4.4.1.3 Limit
Spurious emissions shall not exceed the values set out in table 4.3, shown additionally in figures 4.1 and 4.2, for the
rd
frequency range 9 kHz to 1 GHz or 3 Harmonic whichever is higher.
NOTE: In the case of a T-DAB transmitter supplied without an internal bandpass output filter, the manufacturer
shall specify the characteristics of the filter necessary to fulfil the spurious emission limits defined in
table 4.3. The manufacturer shall include this information in their test report.
Table 4.3: Spurious emissions limits
Frequency range of the
Limits of the spurious emission Reference Figure
spurious emission bandwidth
(MHz) (kHz)
9 kHz - 174 -36 dBm (250 nW) 100 4.1
> 174 - 400 -82 dBm, for P < 25 W 4.2
-126 dBc, for 25 W < P < 1 000 W 4
-66 dBm, for 1 000 W < P
> 400 - 1 000 -36 dBm (250 nW) 100 4.1
> 1 000 - 1 452 -30 dBm (1 µW) 100 4.1
> 1 452 - 1 492 -62 dBm, for P < 25 W 4.2
-106 dBc, for 25 W < P < 1 000 W 4
-46 dBm, for 1 000 W < P
> 1 492 -30 dBm (1 µW) 100 4.1
NOTE: P = mean power of the transmitter.

ETSI
-30 dBm ( 1µW )
-36 dBm (250nW)
-46 dBm (25 nW)
-62 dBm ( 630 pW)
-66 dBm (0,25 nW)
-82 dBm ( 6,3 pW)
16 ETSI EN 302 077-1 V1.1.1 (2005-01)

-70
dBc
9 kHz - 174 MHz
> 400 MHz - 1 000 MHz
> 1 000 MHz - 1 452 MHz
-80
> 1 492 MHz
-90
-100
-110
30 40 50 60 70 80 90 dBm
2,5 5 25 50 250 500 2,5 5 25 50 250 500
1 W 10 W 100 W 1 kW 10 kW 100 kW 1 MW
Mean power of the transmitter
Figure 4.1: Spurious emissions limits for T-DAB transmitters
(100 kHz reference bandwidth)
dBc -90
> 174 MHz - 400 MHz
> 1 452 MHz - 1 492 MHz
-100
-110
-120
-130
30 40 50 60 70 80 90 dBm
2,5 5 25 50 250 500 2,5 5 25 50 250 500
1 W 10 W 100 W 1 kW 10 kW 100 kW 1 MW
Mean power of the transmitter
Figure 4.2: Spurious emissions limits for T-DAB transmitters
(4 kHz reference bandwidth)
ETSI
Ratio of spurious emission to mean power
Ratio of spurious emission to mean power
(reference bandwidth 4 kHz)
(reference bandwidth 100 kHz)
17 ETSI EN 302 077-1 V1.1.1 (2005-01)

4.4.2 Out-of-band emissions
4.4.2.1 Definition
Emission on a frequency or frequencies immediately outside the necessary bandwidth which results from the
modulation process, but excludes spurious emissions.
For the purposes of the present document out-of-band emissions are emissions at frequencies outside the necessary
bandwidth and within the frequency range f ± 3 MHz, where f is the centre frequency of the transmission, irrespective
0 0
of the number of carriers employed.
4.4.2.2 Method of measurement (essential test suite)
4.4.2.2.1 Initial conditions
Test environment:
The normal operating environment, as declared by the equipment manufacturer.
Test frequencies:
a) the lowest operating frequency of the EUT;
b) the highest operating frequency of the EUT;
c) a frequency mid-way between a) and b) above.
Test arrangement: (see figure A.2).
4.4.2.2.2 Procedure
1) all ports unused at the time of testing shall be correctly terminated;
2) operate the EUT at each of the test frequencies as defined in clause 4.4.2.2.1 and in each relevant T-DAB
operating mode;
3) measure th
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