Humminbird 727 - Manual (Page 8)

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DualBeam PLUS™ Sonar
Your 700 Series™ Fishing System uses a 200/83 kHz
DualBeam PLUS™ sonar system with a wide (60°) area
of coverage. DualBeam PLUS™ sonar has a narrowly
focused 20° center beam, surrounded by a second
beam of 60°, expanding your coverage to an area equal
to your depth. In 20 feet of water, the wider beam
covers an area 20 feet wide. The 20° center beam is
focused on the bottom, to show you structure, weeds
and cover. The 60° wide beam is hunting for fish in the
wide coverage area. DualBeam PLUS™ sonar returns
can be blended together, viewed separately or
compared side-by-side. DualBeam PLUS™ is ideal for a
wide range of conditions - from shallow to very deep
water in both fresh and salt water. Depth capability is
affected by such factors as boat speed, wave action,
bottom hardness, water conditions and transducer
installation.
531524-1_A - 717 & 727 Man_Eng.qxp 9/30/2006 7:23 PM Page 8