Acoustic multifunctional standard calibration method

An acoustic transmitting method, comprising:

• deploying an acoustic transmitter device, capable of transmitting and recording a plurality of acoustic signals, from a marine-vessel, wherein said acoustic transmitter device is deployed underwater at a predetermined distance from said marine-vessel and is contained in an expendable package;
• providing at least one predefined standard acoustic signal for underwater acoustic energy transmission by said acoustic transmitter device;
• providing a periodic acoustic signal pulse with encoded information for underwater acoustic energy transmission by said acoustic transmitter device;
• transmitting said at least one predefined standard acoustic signal to ensonify at least one acoustic receiver joined to said marine-vessel, wherein said at least one predefined standard acoustic signal is transmitted from a predefined depth at a specified start time for a specified period of time;
• changing the depth of the acoustic transmitter device during a transmit operation at a selectable rate;
• recording a plurality of acoustic signal data, including acoustic signal data projected by said marine-vessel, by means of said acoustic transmitter device;
• and
• controlling said acoustic transmitter device by a remote controlled trigger signal and alternately by a plurality of preset conditions.