Vexilar LC-507 - Manual (Page 20)

20
TYPICAL INDICATIONS
The LC-507 can display fish, bait fish, weeds, as well as distin-
guish the differences between a hard bottom and a softer bottom.
In the real world, there is no such thing as a typical indication. What
you see on the display is a representation of the water you are fish-
ing, given the current settings of the unit. The Range, Gain, Clean
Line, and all other settings will affect the way your display will
appear in your situation.
FINDING BOTTOM
Once you have turned on the LC-507, in automatic range mode,
you must allow it time to find the bottom. This can take from just a
short moment to more than a minute, depending on the depth and
conditions. If you are operating in manual range mode, you will
need to adjust the range to find the bottom. As soon as the digital
depth appears, the graphical representation of the bottom will start
to move across the screen.
IDENTIFYING
BOTTOM TYPES
Figure 23 shows
what you may see
when moving over a
harder area of the bot-
tom. The harder the
bottom is the better the
signal is reflected from
it. The result on the display is an increase in the number and strength
of the multiple echoes of the bottom. In order to view these changes,
the range must be set deep enough to see these multiple echoes. If
the Automatic Range Control is active, you must have the A-RNG-
MODE feature, in the menu, set to 2nd or 3rd. This will insure that
the range will be adjusted so the multiple echoes can be seen.
Although these echoes can be seen on either beam, the 107 kHz beam
will work better than the 400 kHz beam.
Figure 23