Restricted Visibility:
1 Short blast= I'm leaving you on my starboard side
2 short blast= I'm leaving you on my port side
3 short blast= I'm operating astern propulsion
4 short blast= A pilot vessel engaged in pilotage duty
1 Long 2 Short Blasts:
Not under command
Restricted in ability to maneuver
Constrained by draft
Fishing
Sailing
Pilotage
Seaplane
100 meters or less= ring a bell rapidly for 5 seconds every min Rapid
bell 5 seconds every 1 min= at anchor Rapid bell followed by 3 distinct
strokes= aground
1 long every 2 min= u/w making way
2 long every 2 min= u/w not making way
Improperly or overloading the boat
A microphone converts sound energy into electrical signals. These signals are then transmitted to a recording device or a sound system for amplification and manipulation.
Sound energy signals are called sound waves. These waves are caused by the compression and rarefaction of particles in a medium, such as air, that result in the transmission of sound energy.
The instrument that converts electrical energy to sound or image signals in a radio or television is called a speaker for sound signals and a screen or monitor for image signals. These devices receive electrical signals and convert them into audible sound waves or visual images for the viewer.
a speaker's 'coil' (and magnet) converts electrical signals to sound
A microphone converts voice sound waves into electrical signals, which are then digitized by an analog-to-digital converter (ADC) to produce digital signals. These digital signals can then be processed and transmitted digitally.
Flares are rated for day, night or combined day/night use.
A microphone is a device that captures sound by converting acoustic energy into electrical signals. These signals can then be processed and recorded for playback or transmission.
steer away from the sound signals and slow to a crawl
The electrical signals generated by the ears are sent to the brain via the auditory nerve for interpretation. The brain processes and interprets these signals to create the perception of sound.
Sound is transmitted via telegraph by converting sound waves into electrical signals. These electrical signals are then sent through a telegraph wire to a receiver on the other end. The receiver converts the electrical signals back into sound waves, allowing the message to be heard.
Sound is turned into electrical signals by a device called a microphone. Microphones convert sound vibrations into electrical impulses that can then be processed or recorded by various electronic devices.