This new app called Boat Beacon, shows the position of other vessels as you'd expect but also act as an AIS transmitter for your own position. It means you must turn it off when travelling back home up the motorway otherwise some strange positions will be reported.......
Very useful for poor condition or on a night passage.
You can also add data about your vessel such as type, Sail. Motor etc., length, MMSI details and more.
I will give it a good this season - at £6.00 it's worth a trial.
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