Differences

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+====== EMC ======
+===== Standards =====
+Possibly relevant standards for boat / yacht equipment.
+CISPR 25 - automotive and boats. Designed for not interfering with the broadcast radio receiver in a car.
+CISPR 12 - For the protection of radio receivers not on the boat.
+IEC / EN 60945 - Maritime Navigation and Radiocommunication Equipment and Systems - General Requirements - Methods of Testing and Required Test Results
+IEC 60533 - "ELECTRICAL AND ELECTRONIC INSTALLATIONS IN SHIPS – ELECTROMAGNETIC COMPATIBILITY (EMC) – SHIPS WITH A METALLIC HULL"
+==== Notes from the web ====
+[[https://www.elitetest.com/blog/emc-emi-testing/cispr-12-vs-cispr-25-deciphering-standard-applications/]]
+"CISPR 12 is used as a regulatory standard by many countries. CISPR 25 is an engineering standard that is used mainly by vehicle manufacturers and not for regulatory purposes."
+LED lights interfering with nearby VHF receiver aerials.
+[[https://www.dco.uscg.mil/Portals/9/DCO%20Documents/5p/CG-5PC/INV/Alerts/1318.pdf?ver=2018-08-16-091109-630]]