1. We mounted the Vesper Watchmate 850 above the Vesper XB-8000 in the cockpit for testing. We used both with and without the Vesper splitter.

Vesper Class B AIS Sea Trial

XB-8000 elevates the tech factor; Watchmate pleases KISS sailors.

During a recent passage from Sarasota, Fla., to Havana, Cuba, Practical Sailor had the chance to compare the new Vesper XB-8000 Class B AIS transponder with its predecessor, the Vesper Watchmate 850, a stand-alone Class B AIS transceiver that earned our Best Choice pick back in 2013.

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