BlueAIS Class B, standalone with room to grow
One of the very first Class B AIS transponder prototypes — the Shine Micro RadarPlus — was a standalone design, and it seemed to make a lot of sense (though for some reason it never came to market). It’s a little surprising then that EMA’s new BlueAIS is the first truly available standalone Class B, to my knowledge. Everything is in that 8-inch square waterproof box, and its single cable — which carries power, RS232 and 422 data feeds, and even “silent mode” switching to a little breakout box (with LED indicators) below — can be had in lengths up to 300 feet. The configuration purportedly performs very well and because EMI already has a lot of experience with similar standalone marine communications designs, there are numerous mounting options now and some interesting possibilities to come…