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that this doesn't turn the zone alarm off. See the Alarms section for more
information on the zone alarm.
TRANSDUCER CONE ANGLES
The sound waves from the transducer spread out into the water in a cone
shaped beam. This looks much like the beam from a flashlight. The angle
between the outside edges of the cone is the cone angle.
Lowrance offers a choice of transducers with either an 8 or 20 degree cone
angle. The transducer supplied with the LMS-350A has a 20 degree cone
angle. Typically, wide cone angle transducers (20 degrees) are ideal for
operating in shallow to medium water depths. The 20 degree cone angle
allows you to see more of the underwater world. In 15 feet of water the
20 degree cone covers an area about six feet across. The 8 degree
transducer covers only about a two foot circle.
The 20 degree transducer is almost always the best to use in fresh water,
the 8 degree mostly in salt water. In a deep water environment, (300 feet
- fresh water, 100 feet - salt water) the narrow cone angle is more
desirable. Since the sound energy is concentrated in a smaller area, it can
penetrate to much deeper depths.
8 degree
20 degree
TRANSDUCER CONE ANGLES