MDA-3: The Metadata zero loss VHF antenna splitter is the world?s most effective antenna splitter, developed specifically for use with Class B AIS transceivers. Using sophisticated technology it offers unrivalled performance and reliability ensuring maximum AIS and VHF Radio performance in all situations. Antenna splitter features Built in automatic safety features such as clear call routing (CCR) which ensures VHF radio emergency call priority and continued full performance operation even when power fails! Includes output for FM broadcast receiver.