Nah , just a single note, would be good if you could pick a song though, something appropriate .
I had it fitted ages ago after a bit of a scare with a small Navy boat , same thing, we were just on his course, but I had no way to alert him of our presence.
I was just getting ready to fire the boat up when he suddenly changed course (when he saw us).
Probably should put up a poll ? But how many already have a horn in their boat??
I've had to use it quite a few times now, perhaps they should be considered standard eqipment?
Muzz