EntityQ1752377· pop 13· linked from 21 articlesDigital Selective CallingSign in to savemarine radio standardConnectionsMaritime Mobile Service IdentityEntitygeographic coordinate systemEntityInternational Standard Book NumberEntityGlobal Positioning SystemEntityhertzEntityantennaEntitytouchscreenEntityInternational Telecommunication UnionEntityradio receiverEntityanalog signalEntitybaudEntityerror detection and correctionEntitytransmissionEntityfrequency-shift keyingEntitydistress signalEntityGlobal Maritime Distress Safety SystemEntityhigh frequencyEntitymedium frequencyEntityradiotelephoneEntitypan-panEntityCategoriesInternational telecommunicationsMaritime communicationTelecommunication protocols