Reading the Class B specifications (http://www.navcen.uscg.gov/?pageName=AISMessagesB) , there's a Message 18 transmission interval that's SOG dependent (https://www.panbo.com/archives/2015/06/sotdma_class_b_ais_the_new_middle_way.html). That makes sense as you need more frequent updates at higher speeds. The question is about triggering a transmission on course changes? Class...
1 Reply
Last Reply