NAVICOM RT-420DSC User Manual
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Contents
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Navicom RT-420DSC - 20 -Appendix A – Near Lightning Strike TestThis appendix describes the general procedure for evaluating the immunity to near lightning strikes(NLS) of the RT-420DSC VHF Radio.The test simulates a slow, high-energy pulse produced by an NLS event.Related External Documents BS EN 61000-4-5 : 2006 EMC Directive 2004/108/ECList of AbbreviationsAE Auxiliary EquipmentCE Conducted EmissionsEMC Electromagnetic CompatibilityEN European NormEUT Equipment Under TestFTB Fast Transient BurstMED Marine Equipment DirectiveQP Quasi PeakSafetyThe high voltage interference pulse can contain a very large quantity of energy and every precautionshall be taken to avoid contact with EUT during a test. It is highly recommended that at least one otherperson is present (or very close by) during the test.Test ConfigurationEUT SetupThe EUT shall be setup in a typical system configuration on an isolated wooden bench with NOGROUNDPLANE. The power to the EUT and auxiliary equipment shall be from 12V or 24V sealedlead-acid batteries via a suitable fuse. The length of the EUT power cable shall be no more than 2m.Any screens within the system shall be terminated at the battery very connection.EUT Operating ConfigurationAll operating configurations should be tested with appropriate performance criteria defined for eachtest.Performance CriteriaFrom BS EN 61000-4-5 : 2006Performance criteria C: Temporary loss of function or degradation of performance, the correction ofwhich requires operator intervention. |
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