Lowrance lcx-112c 操作ガイド

ページ / 232
 
58
NOTE: 
If you want to change the sensitivity in Manual Mode, first turn off 
Auto Sensitivity. From the Sonar Page, press 
MENU
|
 
to 
A
UTO 
S
ENSITIVITY
|
ENT
|
 to 
S
ENSITIVITY
|
ENT.
 Press 
 or 
 to pick a different 
sensitivity setting. When it's set at the desired level, press 
EXIT
Important Tip: 
While you are experimenting and learning, it's possible to scramble 
the settings so that the sonar picture disappears from your screen. 
If  that  happens,  remember  that  it's  easy  to  switch  back  to  full 
automatic operation by simply restoring the factory auto settings. 
Here's how: 
To Restore Factory Settings:
 
1. Press 
MENU
|
MENU
|
 to 
S
YSTEM 
S
ETUP
|
ENT
|
 
to 
R
ESET 
O
PTIONS
|
ENT
2. The unit asks if you want to reset all the options. Press 
← to 
Y
ES
|
ENT.
 All options are reset and the unit reverts back to the Map 
Page at the 4000-mile zoom range. (Any recorded sonar logs or GPS 
data will be unchanged.) 
Fish Symbols vs. Full Sonar Chart 
You may have noticed in the quick reference that we used fish arches in 
full sonar chart mode for our example, and not the popular Fish I.D.
™ 
fish symbol feature. Here's why: Fish I.D. is an easier way for a sonar 
novice to recognize a fish signal return when he sees it. However, 
locating a fish via symbol has some limitations. 
Your sonar unit's microprocessor is remarkably powerful, but it can be 
fooled. Some of the echoes calculated to be fish could be tree limbs or 
turtles! To see what's under your boat in maximum detail, we recommend 
you turn off Fish I.D. and begin learning to interpret fish arches. 
Fish  I.D.  is  most  handy  when  you're  in  another  part  of  the  boat  or 
performing some task that prevents you from watching the sonar screen. 
Then, you can turn on Fish I.D. and the audible fish alarm. When a fish 
swims under your boat, you'll hear it!  
Fish I.D. can also be useful when you want to screen out some of the sonar 
detail gathered by your unit. For example, a fisherman in San Francisco 
Bay saw clouds of clutter in the water but no fish arches. When he pulled 
downrigger up, it brought up several small jellyfish. The fisherman 
switched his Lowrance sonar to Fish I.D., which screened out the schools of 
jellyfish and clearly showed the game fish there as fish symbols.