Vexilar LC-507 - Manual (Page 25)

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welmed". In this condition the unit will show erroneous informa-
tion. The graphic display will become mostly black and the digital
numbers on the display will read no depth or depths that are much
deeper than reality. These depths are actually multiple echoes of the
real bottom. It is important to use caution when navigating in shal-
low waters. Use common sense. Don't rely solely on your depth
sounder.
It often helps to turn off the automatic features and manually
change the range to the 5 or 10 foot range. Also, turn the gain level
down to the minimum. If the digital depth reading doesn't seem
right, it is probably a multiple of the correct depth. Use the graph-
ic display as a better reference.
USING THE MODE FEATURE
There are three memory modes in which you can store three dif-
ferent control and feature setups. The point of the Mode feature is
to allow you to quickly change several menu and control panel items
at one time. To make this feature work for you, you will need to go
into each mode and program the settings you want.
If you are new to the operation of the LC-507, it is recommend-
ed that you program each mode as described below. This should be
a good “starting point”. It will also help you get accustomed to the
use of the Mode feature, as well as, the effect of the menu features.
When programmed these new mode settings will give the follow-
ing results.
Mode 1 -
Mode 2 -
Mode 3 -
Basic settings to give the best view of the bottom on
both beams.
Modifies settings to look at multiple bottom echoes.
Hard Bottom Alarm and Fish Alarm are on.
Modifies settings to give good results for high speed
operation, 400 kHz at full screen.
Keep in mind that your final settings will, most likely, differ from
these, given your application and conditions.