Reference details
- Reference
- ETSI EN 301 843-4 V2.2.1 (2017-11)
- Official title
- ElectroMagnetic Compatibility (EMC) standard for marine radio equipment and services; Harmonised Standard for electromagnetic compatibility; Part 4: Specific conditions for Narrow-Band Direct-Printing (NBDP) NAVTEX receivers
- Organisation
- ETSI
- Publisher status in source
- PublishedThis is the status recorded in the source, not a statement that this is the latest edition.
- Source access
- 19 October 2026
Research and application
Begin with the official scope and the product configuration. The title identifies a subject; it does not establish every product, use condition or legal requirement covered by the publication.
Product research routes
- Radio and communications equipment
Radio configurations, spectrum use and the interaction between hardware, software and network functions.
- Marine, aviation and aerospace products
Equipment qualification and interface requirements in marine and aerospace service environments.
Questions for the evidence file
- Radio configuration matrix
- Antenna specification
- Test-mode equivalence
- Software version and change control
- Configuration and installation basis
- Environmental qualification
Record the exact edition and associated amendments, the assessed object, the evidence examined and the limits of the conclusion. Explore IESQ research for detailed product and standard studies.
Legal citation
No Commission citation record has been linked to this reference in the IESQ index. That is an index result, not a conclusion that the standard is uncited. Consult the relevant Commission list and Official Journal acts.
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