Vexilar LC-507 - Manual (Page 2)

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General Description
The Edge 507 is like having two depth sounders in one. The fea-
tures are designed to give the angler the best sonar for any situa-
tion. The split screen dual frequency design allows you to compare
one view with the other to help you gain much more information
about what is below.
The dual frequency feature gives an you incredible advantage.
The Low frequency, 107 kHz, beam provides a wide cone with allot
of sensitivity. This allows you to see fish, as true arcs, as they pass
under the boat. Also, it allows you to see breaks and structure off to
the sides of you. The high frequency beam, 400 kHz, is an excellent
compliment. It gives you a precise narrow beam for locating fish
and sharp edges of structure that are directly under the boat. Using