Should I use a dedicated antenna for Class B AIS or a Class B AIS/VHF radio antenna splitter?
Antenna splitters simplify installation and reduce cable runs. Signal loss is minimal (<3dB) and is far outweighed by the advantages of an antenna optimally located at the highest point available (sailboat masthead, power yacht cabin top or arch). NOTE: Be sure to use a splitter specifically designed for Class B AIS. Splitters designed for use with AIS Receivers are not compatible with AIS Transponders.