![header thumbnail](/images/publishers\iec_cover.gif)
IEC 61097-8:1998
Current
The latest, up-to-date edition.
![header thumbnail](/images/publishers\iec_cover.gif)
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
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English
11-09-1998
FOREWORD
1 Scope
2 Normative references
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 General and operational requirements
4.1 General
4.2 Construction
4.3 Controls and indicators
4.4 Software
4.5 Memory
4.6 Interfaces
4.7 Marking and identification
4.8 Instructions
4.9 Warming-up period
4.10 Safety precautions
4.11 Compass safe distance
5 Technical requirements
5.1 Durability and resistance to environmental
conditions
5.2 Protection of the antenna input circuit
5.3 Frequency bands and channels
5.4 Mode of reception
5.5 Scanning receivers
5.6 Calling sensitivity
5.7 Adjacent channel selectivity
5.8 Co-channel rejection
5.9 Intermodulation response
5.10 Interference rejection, spurious response and
blocking immunity
5.11 Dynamic range
5.12 Conducted spurious emissions into the antenna
5.13 Frequency stability
6 General test conditions
6.1 General
6.2 Test power source
6.3 Normal test conditions
6.4 Extreme test conditions
6.5 Application of test signals to the receiver
6.6 Choice of testing frequencies
6.7 Test signals
6.8 Measurement of bit error rate (BER)
6.9 Measurement uncertainty and interpretation of
the measuring results
7 Environmental tests
7.1 Procedure
7.2 Performance check
7.3 Vibration tests
7.4 Temperature tests
7.5 Corrosion test
8 MF/HF watchkeeping receiver
8.1 Calling sensitivity
8.2 Adjacent channel selectivity
8.3 Co-channel rejection
8.4 RF intermodulation response
8.5 Spurious response rejection
8.6 Dynamic range
8.7 Conducted spurious emissions into the antenna
8.8 Protection of receiver antenna input circuits
8.9 Stop/start
8.10 Stop/start of scanning efficiency
9 VHF watchkeeping receiver
9.1 Calling sensitivity
9.2 Adjacent channel selectivity
9.3 Co-channel rejection
9.4 Intermodulation response
9.5 Spurious response and blocking immunity
9.6 Dynamic range
9.7 Conducted spurious emissions into the antenna
10 EMC
11 EMI
Annex A - Relationship between bit error rate (BER) input
and symbol error rate (SER) output
Annex B - Use of FSK demodulators for testing DSC
watchkeeping receivers
Annex C - Bibliography
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.