CA34/44/54 Echo menu
Chapter 5-11
5.9 Transducer beamwidth
The transducer mounted to the hull of your vessel serves as both
a ‘speaker’ when transmitting, and as a ‘microphone’ when the
echosounder is receiving. Similar to the way a flashlight focuses
light, most of the sound from your transducer is focused downwards
with a smaller amount going out to the sides. The amount of focusing
of the sound beam is expressed as a ‘beamwidth’.
Transducer
Approximation of the sound
pattern below the transducer
This angle is the transducer’s
beamwidth
1/2 maximum intensity
Maximum intensity
Fig. 3 A representation of a transducer bemwidth.
The center of the sound beam is the most intense, then as you move
out towards the sides of the sound beam there is a point where the
intensity of the sound is half what it was in the center. The distance
moved is the ‘beamwidth’. See Fig. 3.
Summary of Contents for CA34
Page 26: ...Chapter 2 10 CA34 44 54 Fundamentals initial start up...
Page 56: ...Chapter 3 30 CA34 44 54 Radar menu...
Page 80: ...Chapter 4 24 CA34 44 54 Chart menu and INFO windows...
Page 112: ...Chapter 6 20 CA34 44 54 Pilot menu navigation examples...
Page 188: ...Chapter 10 10 CA34 44 54 Troubleshooting Service and Specifications...