BS EN 61097-14:2010
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Global maritime distress and safety system (GMDSS) – AIS search and rescue transmitter (AIS-SART). Operational and performance requirements, methods of testing and required test results
| Published By | Publication Date | Number of Pages |
| BSI | 2010 | 44 |
IEC 61097-14:2010 specifies the minimum performance requirements, technical characteristics and methods of testing, and required test results, for Automatic Identification Systems (AIS) search and rescue transmitters (AIS-SART) which may be carried by ships as a search and rescue locating device as required by Chapters III and IV of the International Convention for Safety of Life at Sea (SOLAS), as amended. It takes account of IMO resolution A.694(17) and is associated with IEC 60945.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | CONTENTS |
| 9 | 1 Scope 2 Normative references |
| 10 | 3 Performance requirements 3.1 General 3.2 Operational 3.3 Battery |
| 11 | 3.4 Unique identifier (user ID) |
| 12 | 3.5 Environment 3.6 Range performance 3.7 Transmission performance |
| 14 | 3.8 Labelling 3.9 Manuals |
| 15 | 4 Technical requirements 4.1 Functional block diagram of an AIS-SART Figures Figure 1 – Functional block diagram of an AIS-SART |
| 17 | 4.2 Physical layer requirement Tables Table 1 – Required parameter settings for an AIS-SART Table 2 – Required settings of physical layer constants |
| 18 | 4.3 Link layer requirements Table 3 – Modulation parameters of the physical layer of the AIS-SART Table 4 – Minimum required transmitter characteristics |
| 20 | 5 General methods of testing 5.1 Introduction 5.2 General requirements Figure 2 – Burst transmissions in active mode |
| 21 | 5.3 Normal test conditions 5.4 Extreme test conditions 5.5 Preparation of AIS-SART for type-approval testing 5.6 Test signals |
| 22 | 5.7 Artificial antenna (dummy load) 5.8 Facilities for access 5.9 Modes of operation of the transmitter 5.10 Measurement uncertainties Table 5 – Maximum values of absolute measurement uncertainties |
| 23 | 6 Performance tests 6.1 Operational tests 6.2 Battery |
| 24 | 6.3 Unique identifier 6.4 Environment 6.5 Range performance 6.6 Transmission performance 6.7 Labelling |
| 25 | 6.8 Manuals 6.9 Electronic position fixing system 6.10 Activator 6.11 Indicator 7 Physical radio tests 7.1 General description |
| 26 | 7.2 Frequency error 7.3 Conducted power Figure 3 – Measurement arrangement |
| 27 | 7.4 Radiated power Table 6 – Conducted power – Required results |
| 28 | 7.5 Modulation spectrum slotted transmission |
| 29 | 7.6 Transmitter test sequence and modulation accuracy Figure 4 – Emission mask Figure 5 – Measurement arrangement for modulation accuracy |
| 30 | 7.7 Transmitter output power versus time function Table 7 – Peak frequency deviation versus time |
| 31 | Figure 6 – Power versus time mask Table 8 – Definition of timings |
| 32 | 7.8 Spurious emissions from the transmitter 8 Link layer tests 8.1 Tests for synchronisation accuracy 8.2 Active mode tests |
| 35 | 8.3 Test mode tests |
| 37 | Annex A (informative) Results of trials to verify the range performance of the AIS-SART |
| 39 | Table A.1 – Test results, AIS-SART to vessel (Oban Bay, Scotland) Distances detected in nautical miles (NM) Table A.2 – Test results, AIS-SART to helicopter (Oban Bay, Scotland) Distances detected in nautical miles (NM) |
| 40 | Table A.3 – Test results, AIS-SART to aircraft (Key West, Florida) Distances detected in nautical miles (NM) |
| 41 | Bibliography |
