The navigation rules require sound signals to be made under certain circumstances. Meeting, crossing and overtaking situations, which will be described in some detail shortly, are examples of when sound signals are required. Recreational vessels are also required to sound signals during periods of reduced visibility. 

Your MasterCraft boat is equipped with a horn, but you may also purchase aftermarket devices in case of potential electrical disconnect or failure. 

The following are standard signals when using a whistle:

One prolonged blast: WARNING.

One short blast: PASS ON MY PORT SIDE.

Two short blasts: PASS ON MY STARBOARD SIDE.

Three short blasts: MY ENGINES ARE IN REVERSE.

Five or more blasts: DANGER!

NOTE:  The requirement to carry a bell on board no longer applies to vessels operating on International Waters.