SIST EN 300 338-1 V1.4.2:2018
(Main)Technical characteristics and methods of measurement for equipment for generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile service - Part 1: Common requirements
Technical characteristics and methods of measurement for equipment for generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile service - Part 1: Common requirements
The present document states the minimum requirements for equipment to be used for generation, transmission and
reception of Digital Selective Calling (DSC) for use on board ships.
DSC is intended to be used in the Medium Frequency (MF), High Frequency (HF) and Very High Frequency (VHF)
bands of the Maritime Mobile Service (MMS), for distress, urgency and safety communication and general
communications.
The present document is a multipart deliverable that covers the requirements to be fulfilled by:
- DSC equipment integrated with a transmitter and/or a receiver;
- DSC equipment not integrated with a transmitter and/or a receiver.
These requirements include the relevant provisions of the ITU Radio Regulations [i.17] and Recommendations ITU-R
M.493-14 [2], M.541-10 [3], M.689-3 [4] and M.1082-1 [5], the International Convention for the Safety Of Life At Sea
(SOLAS) [i.16], and the relevant resolutions of the International Maritime Organization (IMO).
Equipment for generation, transmission and reception of DSC designed according to the following equipment classes:
• Class A: includes all the facilities defined in annex 1 of Recommendation ITU-R M.493-14 [2] and complies
with the IMO Global Maritime Distress and Safety System (GMDSS) carriage requirements for MF/HF
installations and/or VHF installations.
• Class B: provides minimum facilities for equipment on ships not required to use class A equipment and
complies with the minimum IMO GMDSS carriage requirements for MF and/or VHF installations. This
equipment should provide for:
- alerting, acknowledgement and relay facilities for distress purposes;
- calling and acknowledgement for general communication purposes; and
- calling in connection with semi-automatic/automatic services, as defined in Recommendation ITU-R
M.493-14 [2], annex 2, clause 3.
• Class D: provides minimum facilities for VHF DSC distress, urgency and safety as well as routine calling and
reception as recommended by IMO MSC/Circ.803 [i.2] for non-SOLAS vessels participating in the GMDSS.
• Class E: provides minimum facilities for MF and/or HF DSC distress, urgency and safety as well as routine
calling and reception as recommended by IMO MSC/Circ.803 [i.2] for non-SOLAS vessels participating in the
GMDSS.
• Class H: provides minimum facilities for handheld VHF DSC distress, urgency and safety as well as routine
calling and reception as recommended by IMO MSC/Circ.803 [i.2] for non-SOLAS vessels participating in the
GMDSS.
• Class M: provides minimum facilities for VHF Man Overboard devices as defined in Recommendation ITU-R
M.493-14 [2].
NOTE 1: Class A and Class B equipment may support the optional semi-automatic/automatic service in accordance
with Recommendations ITU-R M.689-3 [4], M.1082-1 [5] and M.493-14 [2], tables 4.10.1 and 4.10.2 and
are encouraged to do so.
NOTE 2: Class D and Class E equipment may also support the optional semi-automatic/automatic service.
Tehnične karakteristike in merilne metode za naprave, ki generirajo, oddajajo in sprejemajo digitalni selektivni klic (DSC) v pomorski mobilni storitvi, ki deluje v območju MF, MF/HF oziroma VHF - 1. del: Splošne zahteve
V tem dokumentu so navedene minimalne zahteve za naprave, ki generirajo, oddajajo in sprejemajo digitalni selektivni klic (DSC) za uporabo na ladjah.
Digitalno selektivno klicanje je namenjeno za uporabo v pasovih srednje frekvence (MF), visoke frekvence (HF) in zelo visoke frekvence (VHF) pomorske mobilne storitve (MMS) za zasilno, nujno in varnostno komunikacijo ter splošno komunikacijo.
Ta dokument je večdelni dokument in obravnava zahteve, ki jih morajo izpolnjevati:
– naprave za digitalno selektivno klicanje, vgrajene v oddajniku in/ali sprejemniku;
– naprave za digitalno selektivno klicanje, ki niso vgrajene v oddajniku in/ali sprejemniku.
Te zahteve vključujejo ustrezne določbe pravilnika o radiokomunikacijah ITU [i.17] ter priporočil ITU-R M.493-14 [2], M.541-10 [3], M.689-3 [4] in M.1082-1 [5], Mednarodno konvencijo o varstvu človeškega življenja na morju (SOLAS) [i.16] ter ustrezne resolucije Mednarodne pomorske organizacije (IMO).
Naprave za generiranje, oddajanje in sprejemanje digitalnih selektivnih klicev so zasnovane v skladu z naslednjimi razredi naprav:
• Razred A: vključuje vse zmogljivosti, opredeljene v dodatku 1 priporočila ITU-R M.493-14 [2], ter je v skladu z zahtevami za prevoz v okviru globalnega pomorskega zasilnega in varnostnega sistema (GMDSS) Mednarodne pomorske organizacije za namestitve v pasovih srednje/visoke frekvence in/ali zelo visoke frekvence.
• Razred B: zagotavlja minimalne zmogljivosti za naprave na ladjah, za katere se ne zahteva uporaba naprav razreda A, ter je v skladu z minimalnimi zahtevami za prevoz v okviru globalnega pomorskega zasilnega in varnostnega sistema (GMDSS) Mednarodne pomorske organizacije za namestitve v pasovih srednje/visoke frekvence in/ali zelo visoke frekvence. Te
naprave morajo zagotavljati:
– funkcije za opozarjanje, potrjevanje in prenos za zasilne namene;
– klicanje in potrjevanje za namene splošne komunikacije; ter
– klicanje v povezavi s polavtomatskimi/avtomatskimi storitvami, kot je opredeljeno v priporočilu ITU-R M.493-14 [2], dodatek 2, člen 3.
• Razred D: zagotavlja minimalne zmogljivosti za zasilno, nujno in varnostno digitalno selektivno klicanje v pasovih zelo visoke frekvence ter rutinsko klicanje in sprejemanje po priporočilu iz MSC/Circ.803 [i.2] Mednarodne pomorske organizacije za plovila, ki niso zajeta z Mednarodno konvencijo o varstvu človeškega življenja na morju ter so del globalnega pomorskega zasilnega in varnostnega sistema.
• Razred E: zagotavlja minimalne zmogljivosti za zasilno, nujno in varnostno digitalno selektivno klicanje v pasovih srednje in/ali visoke frekvence ter rutinsko klicanje in sprejemanje po priporočilu iz MSC/Circ.803 [i.2] Mednarodne pomorske organizacije za plovila, ki niso zajeta z Mednarodno konvencijo o varstvu človeškega življenja na morju ter so del globalnega pomorskega zasilnega in varnostnega sistema.
• Razred H: zagotavlja minimalne zmogljivosti za ročno zasilno, nujno in varnostno digitalno selektivno klicanje v pasovih zelo visoke frekvence ter rutinsko klicanje in sprejemanje po priporočilu iz MSC/Circ.803 [i.2] Mednarodne pomorske organizacije za plovila, ki niso zajeta z Mednarodno konvencijo o varstvu človeškega življenja na morju ter so del globalnega pomorskega zasilnega in varnostnega sistema.
• Razred M: zagotavlja minimalne zmogljivosti za naprave za pomoč pri padcu človeka v vodo v pasovih zelo visoke frekvence, kot je opredeljeno v priporočilu ITU-R M.493-14 [2].
OPOMBA 1: Naprave razredov A in B lahko podpirajo izbirno polavtomatsko/avtomatsko storitev v skladu s priporočili ITU-R M.689-3 [4], M.1082-1 [5] in M.493-14 [2], preglednici 4.10.1 in 4.10.2, kar se tudi spodbuja.
OPOMBA 2: Naprave razredov D in E lahko prav tako podpirajo izbirno polavtomatsko/avtomatsko storitev.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Technical characteristics and methods of measurement for equipment for generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile service - Part 1: Common requirements47.020.70Navigacijska in krmilna opremaNavigation and control equipment33.060.20Sprejemna in oddajna opremaReceiving and transmitting equipmentICS:Ta slovenski standard je istoveten z:ETSI EN 300 338-1 V1.4.2 (2017-11)SIST EN 300 338-1 V1.4.2:2018en01-januar-2018SIST EN 300 338-1 V1.4.2:2018SLOVENSKI
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SIST EN 300 338-1 V1.4.2:2018
ETSI EN 300 338-1 V1.4.2 (2017-11) Technical characteristics and methods of measurement for equipment for generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile service; Part 1: Common requirements
EUROPEAN STANDARD SIST EN 300 338-1 V1.4.2:2018
ETSI ETSI EN 300 338-1 V1.4.2 (2017-11) 2
Reference REN/ERM-TG26-594 Keywords DSC, GMDSS, maritime, 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 only prevailing document is the print of the Portable Document Format (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 https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https://portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2017. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSM® and the GSM logo are trademarks registered and owned by the GSM Association. SIST EN 300 338-1 V1.4.2:2018
ETSI ETSI EN 300 338-1 V1.4.2 (2017-11) 3 Contents Intellectual Property Rights . 7 Foreword . 7 Modal verbs terminology . 8 1 Scope . 9 2 References . 10 2.1 Normative references . 10 2.2 Informative references . 10 3 Definitions and abbreviations . 12 3.1 Definitions . 12 3.2 Abbreviations . 13 4 General requirements . 13 4.1 General . 13 4.2 Frequencies. 14 4.3 Classes of emission . 15 4.4 Accessibility . 15 4.5 Calibration . 15 4.6 Controls and indicators . 15 4.6.1 General . 15 4.6.2 Markings . 15 4.7 Distress alert activation . 15 4.8 Own MMSI . 16 4.9 Group MMSI . 16 4.10 Own position . 16 4.11 Light sources . 17 4.12 Operation . 17 4.13 Routine testing . 17 4.14 Safety precautions . 17 4.14.1 Excessive current and voltage . 17 4.14.2 Protection . 17 4.14.3 Earthing . 17 4.14.4 Access . 17 4.15 Memory . 18 4.16 Compass safe distance . 18 4.17 Instructions . 18 4.18 Warming-up period . 18 4.18.1 Time . 18 4.18.2 Heaters . 18 4.18.3 Heating circuits . 18 4.19 Selection of signal characteristics . 18 4.20 Automatic/semi-automatic service . 19 4.21 RF power used for DSC signalling . 19 5 Test conditions . 19 5.1 Test conditions, power sources, and ambient temperatures . 19 5.1.1 Normal and extreme test conditions. 19 5.1.2 Test power source . 19 5.2 Normal test conditions . 19 5.2.1 Normal temperature and humidity . 19 5.2.2 Normal power sources . 19 5.2.2.1 Battery power source. 19 5.2.2.2 Other power sources . 20 5.3 Extreme test conditions . 20 5.3.0 General . 20 5.3.1 Extreme temperatures . 20 5.3.2 Extreme values of test power sources . 20 SIST EN 300 338-1 V1.4.2:2018
ETSI ETSI EN 300 338-1 V1.4.2 (2017-11) 4 5.3.2.1 Battery power source. 20 5.3.2.2 Other power sources . 20 5.3.3 Procedure for tests at extreme temperatures . 20 5.4 Standard test signals . 20 5.4.1 References to standard test signals . 20 5.4.2 Standard test signal no. 1 . 21 5.4.3 Standard test signal no. 2 . 21 5.4.4 Standard test signal no. 3 . 21 5.4.5 Standard test signal no. 4 . 21 5.5 Determination of the symbol error rate in the output of the receiving part . 21 5.6 Test Impedances . 21 6 RF test or baseband test of DSC equipment . 22 6.1 RF test of integrated DSC equipment . 22 6.1.1 SOLAS VHF class A/B . 22 6.1.2 Non-SOLAS VHF class D . 22 6.1.3 SOLAS MF/HF class A/B . 22 6.1.4 Non-SOLAS MF/HF class E . 22 6.1.5 Non-SOLAS VHF class H . 22 6.1.6 MoB class M . 22 6.2 Baseband test of non integrated DSC equipment . 22 6.2.1 VHF Encoder . 22 6.2.1.1 Frequency error . 22 6.2.1.1.1 Definition. 22 6.2.1.1.2 Method of measurements. 22 6.2.1.1.3 Limits . 22 6.2.1.2 Output voltage . 23 6.2.1.2.1 Definition. 23 6.2.1.2.2 Method of measurement . 23 6.2.1.2.3 Limits . 23 6.2.1.3 Bit stream speed . 23 6.2.1.3.1 Definition. 23 6.2.1.3.2 Method of measurement . 23 6.2.1.3.3 Limits . 23 6.2.1.4 Unwanted spectral components of the output signal . 23 6.2.1.4.1 Definition. 23 6.2.1.4.2 Method of measurement . 23 6.2.1.4.3 Limits . 24 6.2.1.5 Residual frequency modulation . 24 6.2.1.5.1 Definition. 24 6.2.1.5.2 Method of measurement . 24 6.2.1.5.3 Limits . 24 6.2.2 VHF DSC decoder . 25 6.2.2.1 Dynamic range . 25 6.2.2.1.1 Definition. 25 6.2.2.1.2 Method of measurement . 25 6.2.2.1.3 Limits . 25 6.2.2.2 Noise immunity . 25 6.2.2.2.1 Definition. 25 6.2.2.2.2 Method of test . 25 6.2.2.2.3 Limits . 25 6.2.3 MF/HF DSC encoder . 26 6.2.3.1 Frequency error . 26 6.2.3.1.1 Definition. 26 6.2.3.1.2 Method of measurement . 26 6.2.3.1.3 Limits . 26 6.2.3.2 Output voltage . 26 6.2.3.2.1 Definition. 26 6.2.3.2.2 Method of measurement . 26 6.2.3.2.3 Limits . 26 6.2.3.3 Bit stream speed . 26 6.2.3.3.1 Definition. 26 SIST EN 300 338-1 V1.4.2:2018
ETSI ETSI EN 300 338-1 V1.4.2 (2017-11) 5 6.2.3.3.2 Method of measurement . 26 6.2.3.3.3 Limits . 27 6.2.3.4 Unwanted spectral components of the output signal . 27 6.2.3.4.1 Definition. 27 6.2.3.4.2 Method of measurement . 27 6.2.3.4.3 Limits . 27 6.2.3.5 Residual frequency modulation . 28 6.2.3.5.1 Definition. 28 6.2.3.5.2 Method of measurement . 28 6.2.3.5.3 Limits . 28 6.2.4 MF/HF DSC decoder . 28 6.2.4.1 Interface for scanning . 28 6.2.4.2 Scanning efficiency . 28 6.2.4.2.1 Definition. 28 6.2.4.2.2 Method of measurement . 29 6.2.4.2.3 Limits . 29 6.2.4.3 Dynamic range . 29 6.2.4.3.1 Definition. 29 6.2.4.3.2 Method of measurement . 29 6.2.4.4 Noise Immunity . 29 6.2.4.4.1 Definition. 29 6.2.4.4.2 Method of test . 30 6.2.4.4.3 Limits . 30 7 Environmental tests . 30 7.1 Environmental tests . 30 7.1.1 Introduction. 30 7.1.2 Procedure . 30 7.1.3 Performance check . 30 7.1.4 Vibration test (all classes) . 31 7.1.4.1 Method of measurement . 31 7.1.4.2 Requirement . 31 7.1.5 Temperature tests . 31 7.1.5.1 Dry heat for externally mounted equipment (all classes) . 31 7.1.5.1.1 Method of measurement . 31 7.1.5.1.2 Requirement . 31 7.1.5.2 Damp heat cycle (all classes) . 32 7.1.5.2.1 Method of measurement . 32 7.1.5.2.2 Requirement . 32 7.1.5.3 Low temperature cycle . 32 7.1.5.3.1 Method of measurement for externally mounted equipment (all classes) . 32 7.1.5.3.2 Method of measurement for internally mounted equipment . 32 7.1.5.3.3 Requirement . 32 7.1.6 Corrosion test (class A or B) . 32 7.1.6.1 General . 32 7.1.6.2 Method of measurement . 33 7.1.6.3 Requirements . 33 7.1.7 Rain test (externally mounted, class A or B) . 33 7.1.7.1 General . 33 7.1.7.2 Method of measurement . 34 7.1.7.3 Requirements . 34 8 Decoding and error correction . 34 8.1 Reception of DSC messages . 34 8.2 Error handling in the automated procedures .
...
ETSI EN 300 338-1 V1.4.2 (2017-11)
EUROPEAN STANDARD
Technical characteristics and methods of measurement
for equipment for generation, transmission
and reception of Digital Selective Calling (DSC)
in the maritime MF, MF/HF and/or VHF mobile service;
Part 1: Common requirements
---------------------- Page: 1 ----------------------
2 ETSI EN 300 338-1 V1.4.2 (2017-11)
Reference
REN/ERM-TG26-594
Keywords
DSC, GMDSS, maritime, 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 only prevailing document is the
print of the Portable Document Format (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
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2017.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.
GSM® and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
---------------------- Page: 2 ----------------------
3 ETSI EN 300 338-1 V1.4.2 (2017-11)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
1 Scope . 9
2 References . 10
2.1 Normative references . 10
2.2 Informative references . 10
3 Definitions and abbreviations . 12
3.1 Definitions . 12
3.2 Abbreviations . 13
4 General requirements . 13
4.1 General . 13
4.2 Frequencies. 14
4.3 Classes of emission . 15
4.4 Accessibility . 15
4.5 Calibration . 15
4.6 Controls and indicators . 15
4.6.1 General . 15
4.6.2 Markings . 15
4.7 Distress alert activation . 15
4.8 Own MMSI . 16
4.9 Group MMSI . 16
4.10 Own position . 16
4.11 Light sources . 17
4.12 Operation . 17
4.13 Routine testing . 17
4.14 Safety precautions . 17
4.14.1 Excessive current and voltage . 17
4.14.2 Protection . 17
4.14.3 Earthing . 17
4.14.4 Access . 17
4.15 Memory . 18
4.16 Compass safe distance . 18
4.17 Instructions . 18
4.18 Warming-up period . 18
4.18.1 Time . 18
4.18.2 Heaters . 18
4.18.3 Heating circuits . 18
4.19 Selection of signal characteristics . 18
4.20 Automatic/semi-automatic service . 19
4.21 RF power used for DSC signalling . 19
5 Test conditions . 19
5.1 Test conditions, power sources, and ambient temperatures . 19
5.1.1 Normal and extreme test conditions. 19
5.1.2 Test power source . 19
5.2 Normal test conditions . 19
5.2.1 Normal temperature and humidity . 19
5.2.2 Normal power sources . 19
5.2.2.1 Battery power source. 19
5.2.2.2 Other power sources . 20
5.3 Extreme test conditions . 20
5.3.0 General . 20
5.3.1 Extreme temperatures . 20
5.3.2 Extreme values of test power sources . 20
ETSI
---------------------- Page: 3 ----------------------
4 ETSI EN 300 338-1 V1.4.2 (2017-11)
5.3.2.1 Battery power source. 20
5.3.2.2 Other power sources . 20
5.3.3 Procedure for tests at extreme temperatures . 20
5.4 Standard test signals . 20
5.4.1 References to standard test signals . 20
5.4.2 Standard test signal no. 1 . 21
5.4.3 Standard test signal no. 2 . 21
5.4.4 Standard test signal no. 3 . 21
5.4.5 Standard test signal no. 4 . 21
5.5 Determination of the symbol error rate in the output of the receiving part . 21
5.6 Test Impedances . 21
6 RF test or baseband test of DSC equipment . 22
6.1 RF test of integrated DSC equipment . 22
6.1.1 SOLAS VHF class A/B . 22
6.1.2 Non-SOLAS VHF class D . 22
6.1.3 SOLAS MF/HF class A/B . 22
6.1.4 Non-SOLAS MF/HF class E . 22
6.1.5 Non-SOLAS VHF class H . 22
6.1.6 MoB class M . 22
6.2 Baseband test of non integrated DSC equipment . 22
6.2.1 VHF Encoder . 22
6.2.1.1 Frequency error . 22
6.2.1.1.1 Definition. 22
6.2.1.1.2 Method of measurements. 22
6.2.1.1.3 Limits . 22
6.2.1.2 Output voltage . 23
6.2.1.2.1 Definition. 23
6.2.1.2.2 Method of measurement . 23
6.2.1.2.3 Limits . 23
6.2.1.3 Bit stream speed . 23
6.2.1.3.1 Definition. 23
6.2.1.3.2 Method of measurement . 23
6.2.1.3.3 Limits . 23
6.2.1.4 Unwanted spectral components of the output signal . 23
6.2.1.4.1 Definition. 23
6.2.1.4.2 Method of measurement . 23
6.2.1.4.3 Limits . 24
6.2.1.5 Residual frequency modulation . 24
6.2.1.5.1 Definition. 24
6.2.1.5.2 Method of measurement . 24
6.2.1.5.3 Limits . 24
6.2.2 VHF DSC decoder . 25
6.2.2.1 Dynamic range . 25
6.2.2.1.1 Definition. 25
6.2.2.1.2 Method of measurement . 25
6.2.2.1.3 Limits . 25
6.2.2.2 Noise immunity . 25
6.2.2.2.1 Definition. 25
6.2.2.2.2 Method of test . 25
6.2.2.2.3 Limits . 25
6.2.3 MF/HF DSC encoder . 26
6.2.3.1 Frequency error . 26
6.2.3.1.1 Definition. 26
6.2.3.1.2 Method of measurement . 26
6.2.3.1.3 Limits . 26
6.2.3.2 Output voltage . 26
6.2.3.2.1 Definition. 26
6.2.3.2.2 Method of measurement . 26
6.2.3.2.3 Limits . 26
6.2.3.3 Bit stream speed . 26
6.2.3.3.1 Definition. 26
ETSI
---------------------- Page: 4 ----------------------
5 ETSI EN 300 338-1 V1.4.2 (2017-11)
6.2.3.3.2 Method of measurement . 26
6.2.3.3.3 Limits . 27
6.2.3.4 Unwanted spectral components of the output signal . 27
6.2.3.4.1 Definition. 27
6.2.3.4.2 Method of measurement . 27
6.2.3.4.3 Limits . 27
6.2.3.5 Residual frequency modulation . 28
6.2.3.5.1 Definition. 28
6.2.3.5.2 Method of measurement . 28
6.2.3.5.3 Limits . 28
6.2.4 MF/HF DSC decoder . 28
6.2.4.1 Interface for scanning . 28
6.2.4.2 Scanning efficiency . 28
6.2.4.2.1 Definition. 28
6.2.4.2.2 Method of measurement . 29
6.2.4.2.3 Limits . 29
6.2.4.3 Dynamic range . 29
6.2.4.3.1 Definition. 29
6.2.4.3.2 Method of measurement . 29
6.2.4.4 Noise Immunity . 29
6.2.4.4.1 Definition. 29
6.2.4.4.2 Method of test . 30
6.2.4.4.3 Limits . 30
7 Environmental tests . 30
7.1 Environmental tests . 30
7.1.1 Introduction. 30
7.1.2 Procedure . 30
7.1.3 Performance check . 30
7.1.4 Vibration test (all classes) . 31
7.1.4.1 Method of measurement . 31
7.1.4.2 Requirement . 31
7.1.5 Temperature tests . 31
7.1.5.1 Dry heat for externally mounted equipment (all classes) . 31
7.1.5.1.1 Method of measurement . 31
7.1.5.1.2 Requirement . 31
7.1.5.2 Damp heat cycle (all classes) . 32
7.1.5.2.1 Method of measurement . 32
7.1.5.2.2 Requirement . 32
7.1.5.3 Low temperature cycle . 32
7.1.5.3.1 Method of measurement for externally mounted equipment (all classes) . 32
7.1.5.3.2 Method of measurement for internally mounted equipment . 32
7.1.5.3.3 Requirement . 32
7.1.6 Corrosion test (class A or B) . 32
7.1.6.1 General . 32
7.1.6.2 Method of measurement . 33
7.1.6.3 Requirements . 33
7.1.7 Rain test (externally mounted, class A or B) . 33
7.1.7.1 General . 33
7.1.7.2 Method of measurement . 34
7.1.7.3 Requirements . 34
8 Decoding and error correction . 34
8.1 Reception of DSC messages . 34
8.2 Error handling in the automated procedures . 35
8.2.1 General . 35
8.2.2 Distress automated procedures .
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