IEC 61097-9:1997
Current
The latest, up-to-date edition.
Global maritime distress and safety system (GMDSS) - Part 9: Shipborne transmitters and receivers for use in the MF and HF bands suitable for telephony, digital selective calling (DSC) and narrow band direct printing (NBDP) - Operational and performance requirements, methods of testing and required test results
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
English
28-11-1997
FOREWORD
1 Scope
2 Normative references
3 Performance requirements
3.1 Introduction
3.2 Power supplies
3.3 Control
3.4 Interfaces
3.5 Frequency indication
3.6 Distress controls
3.7 Control panel priority
3.8 Labels
3.9 Safety precautions
3.10 Classes of emission
3.11 Frequency bands
3.12 Warming-up period
4 Transmitter
4.1 Frequencies and classes of emission
4.2 Frequency accuracy and stability
4.3 Output power
4.4 Transmitter input
4.5 Permissible warming-up period
4.6 Continuous operation
4.7 Controls and indicators
4.8 Safety precautions
4.9 Power supply
4.10 Synthesizer lock
4.11 Channel switching
4.12 NBDP transmit and receive timing
5 Receiver
5.1 Frequencies and classes of emission
5.2 Frequency stability and accuracy
5.3 Usable sensitivity
5.4 Receiver output
5.5 Permissible warming-up period
5.6 Immunity to interference
5.7 Controls
5.8 Power supply
5.9 Antenna static protection
5.10 Loudspeaker switching
5.11 Noise reducer
5.12 Audio gain control and automatic gain control
(AGC)
5.13 NBDP transmit and receive timing
6 Radiotelephone alarm signal generator
6.1 Introduction
6.2 General
6.3 Frequency and duration of tones
6.4 Modulation
6.5 Controls
6.6 Duration of alarm signal
6.7 Alarm signal repeat
6.8 Activation of the radio telephone transmitter
6.9 Aural monitoring
7 Methods of testing and required test results
7.1 Test conditions
7.2 Performance check
7.3 Environmental tests
7.4 Electromagnetic compatibility (EMC)
7.5 Immunity
7.6 Acoustic noise
7.7 Compass safe distance
7.8 Safety precautions
7.9 General conditions of measurement
8 Transmitter
8.1 General
8.2 Frequency error
8.3 Output power and intermodulation products
8.4 Unwanted frequency modulation
8.5 Sensitivity of the microphone
8.6 Sensitivity of the 600 omega line input for SSB
telephony
8.7 Automatic level control and/or limiter for SSB
telephony
8.8 Audio frequency response using SSB telephony
8.9 Power of out-of-band emissions using SSB telephony
8.10 Power of conducted spurious emissions of SSB
telephony
8.11 Residual hum and noise power using telephony
8.12 Residual frequency modulation on DSC and NBDP
8.13 Carrier suppression
8.14 Continuous operation
8.15 Protection of the transmitter
8.16 Residual RF noise power
8.17 Switching time for NBDP
9 Receiver
9.1 Audio frequency output levels
9.2 Frequency error
9.3 Unwanted frequency modulation
9.4 Audio frequency pass band
9.5 Maximum usable sensitivity
9.6 Harmonic content in output
9.7 Adjacent channel selectivity
9.8 Blocking
9.9 Cross-modulation
9.10 Intermodulation
9.11 Spurious response rejection ratio
9.12 Audio frequency intermodulation
9.13 Conducted spurious emissions into the antenna
9.14 Internally generated spurious signals
9.15 Improvement in signal-to-noise ratio with AGC
9.16 AGC range
9.17 AGC time constants (attack and recovery time)
9.18 Switching time for NBDP
9.19 Reciprocal mixing
9.20 Protection of input circuits
Figures
1 Limits for unwanted emission (MF/HF transmitter)
2 Limits for automatic level control
3 Limits for audio frequency response
Annexes
A Relationship between bit error rate (BER) input and
symbol error rate (SER) output
B Bibliography
C Delays in equipment and its effect on narrow band direct
printing communication in the GMDSS using the protocol
in Recommendation ITU-R M.625
Specifies the minimum operational and performance requirements and methods of testing for transmitters and receivers capable of voice communication, digital selective calling and narrow band direct printing telegraphy for the GMDSS operating in either the medium frequency band only or in medium and high frequency bands.
Committee |
TC 80
|
DevelopmentNote |
Stability Date: 2018. (10/2012)
|
DocumentType |
Standard
|
Pages |
56
|
PublisherName |
International Electrotechnical Committee
|
Status |
Current
|
BS EN 61162-1:2016 | Maritime navigation and radiocommunication equipment and systems. Digital interfaces Single talker and multiple listeners |
BS EN 61162-2:1999 | Maritime navigation and radiocommunication equipment and systems. Digital interfaces Single talker and multiple listeners, high-speed transmission |
I.S. EN 61162-1:2016 | MARITIME NAVIGATION AND RADIOCOMMUNICATION EQUIPMENT AND SYSTEMS - DIGITAL INTERFACES - PART 1: SINGLE TALKER AND MULTIPLE LISTENERS |
IEC 61097-3:2017 | Global maritime distress and safety system (GMDSS) - Part 3: Digital selective calling (DSC) equipment - Operational and performance requirements, methods of testing and required test results |
IEC 61162-1:2016 | Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners |
09/30214168 DC : 0 | BS EN 61162-1 - MARITIME NAVIGATION AND RADIOCOMMUNICATION EQUIPMENT AND SYSTEMS - DIGITAL INTERFACES - PART 1: SINGLE TALKER AND MULTIPLE LISTENERS |
EN 61162-1:2016 | Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners |
IEC 61162-1:2016 | Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners |
ISO 3791:1976 | Office machines and data processing equipment — Keyboard layouts for numeric applications |
IEC 60945:2002 | Maritime navigation and radiocommunication equipment and systems - General requirements - Methods of testing and required test results |
IEC 61097-8:1998 | Global maritime distress and safety system (GMDSS) - Part 8: Shipborne watchkeeping receivers for the reception of digital selective calling (DSC) in the maritime MF, MF/HF and VHF bands - Operational and performance requirements, methods of testing and required test results |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.