ETSI EN 300 373-2 V1.1.1 (2003-10)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.NYHQþQLKElectromagnetic compatibility and Radio spectrum Matters (ERM); Maritime mobile transmitters and receivers for use in the MF and HF bands; Part 2: Harmonized EN covering essential requirements under article 3.2 of the R&TTE Directive47.020.70Navigacijska in krmilna opremaNavigation and control equipment33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.20Sprejemna in oddajna opremaReceiving and transmitting equipmentICS:Ta slovenski standard je istoveten z:EN 300 373-2 Version 1.1.1SIST EN 300 373-2 V.1.1.1:2004en01-julij-2004SIST EN 300 373-2 V.1.1.1:2004SLOVENSKI
STANDARD
ETSI EN 300 373-2 V1.1.1 (2004-01)Candidate Harmonized European Standard (Telecommunications series) Electromagnetic compatibilityand Radio spectrum Matters (ERM);Maritime mobile transmitters and receiversfor use in the MF and HF bands;Part 2: Harmonized EN covering essential requirementsunder article 3.2 of the R&TTE Directive
ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 2
Reference DEN/ERM-TG26-027-2 Keywords maritime, radio, regulation, telephony 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
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Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: editor@etsi.org Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2004. All rights reserved.
DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 3
Contents Intellectual Property Rights.6 Foreword.6 Introduction.7 1 Scope.9 2 References.9 3 Definitions, symbols and abbreviations.10 3.1 Definitions.10 3.2 Symbols.10 3.3 Abbreviations.11 4 Technical requirements specifications.11 4.1 Environmental profile.11 4.2 Conformance requirements.11 4.2.1 Frequency error.11 4.2.1.1 Definition.11 4.2.1.2 Limits.12 4.2.1.3 Conformance.12 4.2.2 Output power and intermodulation products.12 4.2.2.1 Definition.12 4.2.2.2 Limits.12 4.2.2.2.1 Output power in the range 1 605 kHz to 4 000 kHz for all modulation modes.12 4.2.2.2.2 Output power in the range 4 MHz to 27,5 MHz for all modulation modes.12 4.2.2.2.3 Intermodulation products for SSB telephony modes.12 4.2.2.2.4 Difference of power of B-state frequency and Y-state frequency.12 4.2.2.2.5 Output spectrum.13 4.2.2.3 Conformance.13 4.2.3 Power of out-of-band emissions of SSB telephony.13 4.2.3.1 Definition.13 4.2.3.2 Limits.13 4.2.3.3 Conformance.14 4.2.4 Power of conducted spurious emissions of SSB telephony.14 4.2.4.1 Definition.14 4.2.4.2 Limits.14 4.2.4.3 Conformance.14 4.2.5 Carrier suppression.14 4.2.5.1 Definition.14 4.2.5.2 Limits.14 4.2.5.3 Conformance.14 4.2.6 Maximum usable sensitivity.14 4.2.6.1 Definition.14 4.2.6.2 Limits.15 4.2.6.3 Conformance.15 4.2.7 Adjacent signal selectivity.15 4.2.7.1 Definition.15 4.2.7.2 Limits.15 4.2.7.3 Conformance.15 4.2.8 Blocking or desensitization.16 4.2.8.1 Definition.16 4.2.8.2 Limits.16 4.2.8.3 Conformance.16 4.2.9 Intermodulation response.16 4.2.9.1 Definition.16 4.2.9.2 Limits.16 4.2.9.3 Conformance.16 SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 4
4.2.10 Spurious response rejection ratio.16 4.2.10.1 Definition.16 4.2.10.2 Limits.16 4.2.10.3 Conformance.17 4.2.11 Receiver spurious emissions.17 4.2.11.1 Definition.17 4.2.11.2 Limits.17 4.2.11.3 Conformance.17 4.2.12 Synthesizer lock.17 4.2.13 Channel switching.17 5 Testing for compliance with technical requirements.17 5.1 Test conditions, power supply and ambient temperatures.17 5.1.1 General.17 5.1.2 Test power source.17 5.1.3 Normal test conditions.18 5.1.3.1 Normal temperature and humidity.18 5.1.3.2 Normal test power source.18 5.1.3.2.1 Mains voltage and frequency.18 5.1.3.2.2 Secondary battery power sources.18 5.1.3.2.3 Other power sources.18 5.1.4 Extreme test conditions.18 5.1.4.1 Extreme temperature tests.18 5.1.4.2 Extreme values of test power source.18 5.1.4.2.1 Mains voltage and mains frequency.18 5.1.4.2.2 Secondary battery power sources.18 5.1.4.2.3 Other power sources.19 5.1.5 Artificial antennas.19 5.1.5.1 Transmitters.19 5.1.5.2 Receivers.19 5.1.6 Standard test signals.19 5.1.6.1 Test signals applied to the receiver input.19 5.1.6.1.1 Sources.19 5.1.6.1.2 Levels.19 5.1.6.2 Normal test signals.19 5.1.6.2.1 Class of emission J3E.20 5.1.6.2.2 Class of emission F1B.20 5.1.6.3 Choice of testing frequencies.20 5.1.7 Warming up period.20 5.1.7.1 Time.20 5.1.7.2 Heaters.20 5.2 Interpretation of the measurement results.20 5.3 Essential radio test suites.21 5.3.1 Frequency error.21 5.3.2 Output power and intermodulation products.21 5.3.3 Power of out-of-band emissions of SSB telephony.22 5.3.4 Power of conducted spurious emissions of SSB telephony.22 5.3.5 Carrier suppression.22 5.4 Other test specifications.23 5.4.1 General.23 5.4.2 Maximum usable sensitivity.23 5.4.3 Adjacent signal selectivity.23 5.4.4 Blocking or desensitization.23 5.4.5 Intermodulation response.24 5.4.5.1 Class of emission J3E.24 5.4.5.2 Class of emission F1B analogue.24 5.4.5.3 Class of Emission F1B digital.25 5.4.5.4 Results.25 5.4.6 Spurious response rejection ratio.25 5.4.7 Receiver spurious emissions.26 Annex A (normative): The EN Requirements Table (EN-RT).27 SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 5
Annex B (informative): Bibliography.29 Annex C (informative): The EN title in the official languages.30 History.31
ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 6
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 (as amended) [8] 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 [1] 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"). The present document is part 2 of a multi-part deliverable covering Maritime mobile transmitters and receivers for use in the MF and HF bands, as identified below: Part 1: "Technical characteristics and methods of measurement"; Part 2: "Harmonized EN covering essential requirements under article 3.2 of the R&TTE Directive"; Part 3: "Harmonized EN covering essential requirements under article 3.3(e) of the R&TTE Directive". Technical specifications relevant to Directive 1999/5/EC [1] are given in annex A.
National transposition dates Date of adoption of this EN: 26 December 2003 Date of latest announcement of this EN (doa): 31 March 2004 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
30 September 2004 Date of withdrawal of any conflicting National Standard (dow): 30 September 2005
ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 7
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 [1]. Each standard is a module in the structure. The modular structure is shown in figure 1.
- If needed, new standards for human exposure to
Electromagnetic Fields, - If needed, new standards for acoustic safety Use of spectrum * If needed Scoped by
equipment
class or type Scoped by frequency and/or equipment type Disability* Privacy* Fraud* No harm to the network* Emergency* Interworking via
the network* Interworking with the network Non-radio Radio (RE) Non-TTE TTE 3.1b 3.2 3.3c 3.3b 3.3a 3.3d 3.3e 3.3f Radio Product EMC EN 301 843 multi-part EMC standard Generic and product standards also notified under EMC Directive Standards also notified under LV Directive 3.1a New radio harmonized standards Spectrum EMC Safety
Figure 1: Modular structure for the various standards used under the R&TTE Directive [1] SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 8
The left hand edge of the figure 1 shows the different clauses of article 3 of the R&TTE Directive [1]. 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 301 843 (see bibliography), the multi-part product EMC standard for radio used under the EMC Directive [2]. For article 3.1a the diagram shows the existing safety standards currently used under the LV Directive [3] and new standards covering human exposure to electromagnetic fields. New standards covering acoustic safety may also be required. The bottom of figure 1 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 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 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. SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 9
1 Scope The present document applies to radio transmitters and receivers, for use on vessels, operating in either the Medium Frequency (MF) only or in the Medium and High Frequency (MF/HF) bands allocated in the International Telecommunications Union (ITU) Radio Regulations [4], to the Maritime Mobile Service (MMS). The present document refers to equipment for one or more of the following: - Single SideBand (SSB) modulation for telephony transmission and reception (J3E); - Frequency Shift Keying (FSK) or SSB modulation of a keyed sub-carrier to transmit and receive Digital Selective Calling (DSC) signals in accordance with ITU-R Recommendation M.493-10 [5]. The present document also refers to radio equipment, which is not integrated with the DSC encoder or decoder, but defines the interfaces with such equipment. NOTE 1: The requirements for integrated equipment may be found in other relevant EN/ETSs. The present document is intended to cover the provisions of Directive 1999/5/EC (R&TTE Directive) [1] article 3.2, 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". The requirements in the present document are applicable to receivers for operating on all frequencies in the bands 1 605 kHz to 4 000 kHz or 1 605 kHz to 27,5 MHz as allocated in the ITU Radio Regulations [4], to the MMS. Other spot frequency receivers should meet all the requirements of the present document and other relevant standards as applicable for the frequencies and modes provided. If the equipment, or parts of it, are designed in such a manner that they can be used for other categories of maritime radiocommunication (e.g. Morse telegraphy or NBDP - ETS 300 067 [6]), those parts of the equipment should fulfil the relevant requirements of the appropriate standards for the service(s) in question e.g. ETS 300 067 [6]. 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 [1] will apply to equipment within the scope of the present document. NOTE 2: 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] 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). [2] 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). SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 10 [3] Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the laws of Member States relating to electrical equipment designed for use within certain voltage limits
(LV Directive). [4] ITU Radio Regulations (2001). [5] ITU-R Recommendation M.493-10: "Digital selective-calling system for use in the maritime mobile service". [6] ETSI ETS 300 067: "Radio Equipment and Systems (RES); Radiotelex equipment operating in the maritime MF/HF service; Technical Characteristics and methods of measurement". [7] ETSI TR 100 028: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics". [8] 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. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in the R&TTE Directive [1] and the following apply: assigned frequency: centre of the frequency band assigned to a station carrier frequency: frequency to which the transmitter or receiver is tuned environmental profile: range of environmental conditions under which equipment within the scope of the present document is required to comply with the provisions of the present document spurious emission: 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 NOTE: Spurious emissions include harmonic emissions, parasitic emissions, intermodulation products and frequency conversion products but exclude out of-band emissions (ITU Radio Regulations [4]). standard output power: (of the receiver) is defined as: a) 1 mW for earphone reception; b) 500 mW for loudspeaker reception; c) 0 dBm into 600 Ω for the audio line outputs; measured across a resistor equal to the nominal value of the load impedance as declared by the manufacturer 3.2 Symbols For the purposes of the present document, the symbols given in the ITU Radio Regulations [4] and the following apply: dBA dB relative to 2 × 10-5 Pascal dBd antenna gain relative to a half-wave dipole dBuV dB relative to 1 microvolt emf dBuV/m dB relative to 1 microvolt per metre F1B frequency modulation, single channel containing quantized or digital information without the use of a modulating sub-carrier, telegraphy for automatic reception J2B SSB, suppressed carrier, single channel containing quantized or digital information with the use of a modulating sub-carrier, telegraphy for automatic reception J3E SSB, suppressed carrier, single channel containing analogue information, telephony SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 11 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: AGC Automatic Gain Control Bd Baud BER Bit Error Rate DC Direct Current DSC Digital Selective Calling EMC ElectroMagnetic Compatibility emf electromotive force FSK Frequency Shift Keying IF Intermediate Frequency ITU International Telecommunications Union LV Low Voltage MF Medium Frequency MF/HF Medium and High Frequency MMS Maritime Mobile Service NBDP Narrow Band Direct Printing telegraphy PEP Peak Envelope Power R&TTE Radio and Telecommunications Terminal Equipment RF Radio Frequency SINAD Signal + Noise + Distortion/Noise + Distortion SSB Single SideBand 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 determined by the environmental class of the equipment. 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 Conformance requirements 4.2.1 Frequency error 4.2.1.1 Definition The frequency error of the transmitter is defined as: a) for SSB telephony: - the difference between the measured frequency less 1 000 Hz and the nominal value of the frequency for the particular telephony channel. b) for DSC with an analogue interface: - the difference between the measured and the nominal assigned frequency. c) for DSC with a digital interface: - the difference between the measured Y-state frequency and the nominal assigned frequency -85 Hz and the difference between the measured B-state frequency and the nominal assigned frequency +85 Hz. SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 12 4.2.1.2 Limits The transmitter frequencies shall, after the warming-up period specified in clause 5.1.7 be within ±10 Hz of the frequencies calculated in accordance with the definitions in clause 4.2.1.1. 4.2.1.3 Conformance Conformance tests as described in clause 5.3.1 shall be carried out. 4.2.2 Output power and intermodulation products 4.2.2.1 Definition The output power is the value of peak envelope power delivered by the transmitter to the artificial antenna in telephony SSB mode or the value of the mean power delivered by the transmitter to the artificial antenna in DSC mode. NOTE: The measurement of intermodulation products characterizes the linearity of amplitude modulated transmitters and is defined in ITU-R Recommendation SM 326-6 (see bibliography). 4.2.2.2 Limits 4.2.2.2.1 Output power in the range 1 605 kHz to 4 000 kHz for all modulation modes The maximum peak envelope power or maximum mean power, as appropriate (see clause 4.2.2.1), shall be within ±1,5 dB of the manufacturer's declared value(s), shall be greater than 60 W and shall not exceed 400 W. 4.2.2.2.2 Output power in the range 4 MHz to 27,5 MHz for all modulation modes The maximum peak envelope power or maximum mean power, as appropriate (see clause 4.2.2.1), shall be within ±1,5 dB of the manufacturer's declared value(s), shall be greater than 60 W, and shall not exceed 1 500 W. 4.2.2.2.3 Intermodulation products for SSB telephony modes For equipment with a rated output power exceeding 250 W PEP the value of intermodulation products shall not exceed 25 dB below the highest of the two tones under normal test conditions and shall not exceed 22 dB below the highest of the two tones under extreme test conditions. For equipment with a rated output power up to and including 250 W PEP the value of intermodulation products shall not exceed 22 dB below the highest of the two tones under normal test conditions and shall not exceed 19 dB below the highest of the two tones under extreme test conditions. 4.2.2.2.4 Difference of power of B-state frequency and Y-state frequency The difference of the power of the B-state frequency and the Y-state frequency shall not exceed 2 dB. SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 13 4.2.2.2.5 Output spectrum The output spectrum on DSC sending a dot pattern shall fall within the mask defined in figure 2. 0 dBHz-10 dB-20 dB-30 dB-40 dB-60 dB-43 dB-50 dBf
- 552cf
- 276cf
- 138cf
cf
+ 138cf
+
552cf
+ 276c0 dB-9 dB-25 dB-43 dB Without exceedingthe power of 50 mW fc: centre frequency.
Figure 2: Output spectrum 4.2.2.3 Conformance Conformance tests as described in clause 5.3.2 shall be carried out. 4.2.3 Power of out-of-band emissions of SSB telephony 4.2.3.1 Definition Out-of band emissions are emissions on a frequency or frequencies immediately outside the necessary bandwidth which result from the modulation process, but excluding spurious emissions. 4.2.3.2 Limits The power of any out-of-band emission supplied to the artificial antenna shall be in accordance with the limits given in table 1. Table 1: Limits for out-of-band emissions Separation ∆∆∆∆ in kHz between the frequency of the out-of-band emission and a frequency 1 400 Hz above the carrier
Minimum attenuation below maximum peak envelope power 1,5 < ∆ ≤ 4,5
31 dB 4,5 < ∆ ≤ 7,5
38 dB 7,5 < ∆ ≤ 12 43 dB without exceeding the power of 50 mW
ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 14 4.2.3.3 Conformance Conformance tests as described in clause 5.3.3 shall be carried out. 4.2.4 Power of conducted spurious emissions of SSB telephony 4.2.4.1 Definition Spurious emissions are 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. 4.2.4.2 Limits The power of any conducted spurious emission at the antenna port shall be in accordance with table 2. Table 2: Limits for conducted spurious emissions Frequency range Minimum attenuation below peak envelope power in Tx mode Power in the Tx standby mode 9 kHz to 2 GHz 43 dB without exceeding the power of 50 mW 2 nW > 2 GHz to 4 GHz 43 dB without exceeding the power of 50 mW 20 nW
4.2.4.3 Conformance Conformance tests as described in clause 5.3.4 shall be carried out. 4.2.5 Carrier suppression 4.2.5.1 Definition The carrier suppression is expressed in terms of the ratio between the peak envelope power and the carrier power output power. 4.2.5.2 Limits The carrier suppression for modulation J3E shall be at least 40 dB. 4.2.5.3 Conformance Conformance tests as described in clause 5.3.5 shall be carried out. 4.2.6 Maximum usable sensitivity 4.2.6.1 Definition The maximum usable sensitivity is the minimum level of a radio frequency input signal with specified modulation which will produce at the receiver analogue outputs a chosen value of Signal plus Noise plus Distortion to Noise plus Distortion (SINAD) ratio and, at the same time an output power not less than the standard output power. In the case of digital outputs it is the minimum level of a radio frequency input signal with specified modulation which will produce a chosen value of bit error ratio. SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 15 4.2.6.2 Limits The maximum usable sensitivity shall be better than the values given in table 3. Table 3: Limits of maximum usable sensitivity Frequency range Class of emission Maximum level of input of input signal (dBµV) 50 ΩΩΩΩ or 10 ΩΩΩΩ and 250 pF source impedance
Normal conditions Extreme conditions 1 605 kHz to 4 000 kHz
J3E +16 +22
F1B +5 +11 4 MHz to 27,5 MHz
J3E +11 +17
F1B +0 +6
4.2.6.3 Conformance Conformance tests as described in clause 5.4.2 shall be carried out. 4.2.7 Adjacent signal selectivity 4.2.7.1 Definition Adjacent signal selectivity is defined as the ability of the receiver to discriminate between a wanted signal (to which the receiver is tuned) and unwanted signals existing simultaneously in channels adjacent to that of the wanted signal or an increase of the bit error ratio to 10-2. 4.2.7.2 Limits The adjacent signal selectivity shall exceed the values given in the tables 4, 5 and 6. Table 4: Class of emission J3E Carrier frequency of unwanted signal relative to carrier frequency of wanted signal Adjacent signal selectivity -1 kHz and +4 kHz 40 dB -2 kHz and +5 kHz 50 dB -5 kHz and +8 kHz 60 dB
Table 5: Class of emission F1B Carrier frequency of unwanted signal relative to carrier frequency of wanted signal Adjacent signal selectivity -500 Hz and +500 Hz 40 dB
Table 6: Class of emission F1B (digital output) Carrier frequency of unwanted signal relative to carrier frequency of wanted signal Adjacent signal selectivity -500 Hz and +500 Hz BER = 10-2 or better
4.2.7.3 Conformance Conformance tests as described in clause 5.4.3 may be carried out. SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 16 4.2.8 Blocking or desensitization 4.2.8.1 Definition Blocking is a change (generally a reduction) in the wanted output power of a receiver, or a reduction in the SINAD ratio, or an increase in the bit error rate due to an unwanted signal on another frequency. 4.2.8.2 Limits Class of emission J3E or F1B (analogue output) With the wanted signal at +60 dBµV, the level of the unwanted signal shall be not less than 100 dBµV. With the wanted signal at a level equal to the measured maximum usable sensitivity, the level of the unwanted signal shall be at least +65 dB above the measured usable sensitivity level. Class of emission F1B (digital output) The bit error ratio shall be 10-2 or better. 4.2.8.3 Conformance Conformance tests as described in clause 5.4.4 may be carried out. 4.2.9 Intermodulation response 4.2.9.1 Definition Intermodulation is a process by which signals are produced from two or more (generally unwanted) signals simultaneously present in a non-linear circuit. 4.2.9.2 Limits The level of each of the two interfering signals which result in a 20 dB SINAD ratio at the receiver output shall be not less than +80 dBµV for J3E and +70 dBµV for analogue F1B. The level of each of the two interfering signals which result in a bit error ratio of 10-2 for digital receivers shall be not less than +70 dBµV. 4.2.9.3 Conformance Conformance tests as described in clause 5.4.5 may be carried out. 4.2.10 Spurious response rejection ratio 4.2.10.1 Definition The spurious response rejection ratio is the ratio of the input level of an unwanted signal, at the frequency of the spurious response to the input level of a wanted signal, when the wanted and unwanted signals individually produce the same SINAD ratio at the receiver output. 4.2.10.2 Limits Class of emission J3E and Class of emission F1B (analogue output) The spurious response rejection ratio shall not be less than 60 dB. SIST EN 300 373-2 V.1.1.1:2004

ETSI ETSI EN 300 373-2 V1.1.1 (2004-01) 17 Class of emission F1B (digital output) The bit error ratio shall be 10-2 or better. 4.2.10.3 Conformance Conformance tests as described in clause 5.4.6 may be carried out. 4.2.11 Receiver spurious emissions 4.2.11.1 Definition Spurious emissions are any radio frequency emissions generated in the receiver and radiated either by way of conduction to the antenna or other conductors connected to the receiver, or ra
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