GPS Chart Plotter & Echo Sounder
42
When in soft ground and muddy ground ,user can choose a smaller echo signal classification,
to make the echo display for darker colors, such as red and orange;
when in hard, especially shallow water, you can choose a larger Echo signal classification, to
avoid the plankton and garbage caused by weak echoes in the echo image shows a darker
color, so that the screen display is too complex.
On map screen
：
Press
〖
MENU
〗
to enter
【
Main Menu
】
, select
【
Fish Finder
】
. Select
【
18 Echo Signal Level
】
in
【
Fish Finder
】
, press
〖
←
〗、〖
→
〗
to set echo signal level mode..
On fish finder screen
：
Press
〖
MENU
〗
to enter
【
Fish Finder
】
, Select
【
18 Echo Signal Level
】
in
【
Fish Finder
】
, press
〖
←
〗、〖
→
〗
to set echo signal level mode.
4-1-18 Noise Reduction
Noise reduction is primarily used to attenuate the noise caused by the phytoplankton and
garbage echo reflections. Users can according to the actual situation of noise reduction level
settings: low, medium and high.
On map screen
：
Press
〖
MENU
〗
to enter
【
Main Menu
】
, select
【
Fish Finder
】
. Select
【
19 Noise Reduction
】
in
【
Fish Finder
】
, press
〖
←
〗、〖
→
〗
to set noise reduction mode.
On fish finder screen
：
Press
〖
MENU
〗
to enter
【
Fish Finder
】
, Select
【
19 Noise Reduction
】
in
【
Fish Finder
】
, press
〖
←
〗、〖
→
〗
to set noise reduction mode.
4-1-19 Auto Gain Correction
The Auto Gain Correction function is mainly used to adjust the automatic gain value to meet the
requirements of different customers on the automatic gain value. Users can according to the
actual situation of auto gain correction settings: -20%~+20%.
On map screen
：
Press
〖
MENU
〗
to enter
【
Main Menu
】
, select
【
Fish Finder
】
. Select
【
21 Auto Gain Correction
】
in
【
Fish Finder
】
, press
〖
←
〗、〖
→
〗
to set Auto Gain Correction mode.
On fish finder screen
：
Press
〖
MENU
〗
to enter
【
Fish Finder
】
, Select
【
21 Auto Gain Correction
】
in
【
Fish Finder
】
,
press
〖
←
〗、〖
→
〗
to set Auto Gain Correction mode.
4-1-20 A-Scope
A-Scope is to display the echo in the form of lateral deformation. The greater the deformation,
the stronger the echo. Once fish population is detected, the A-wave meter will immediately
estimate the approximate size of the fish population so that it does not need to wait until all
echoes are displayed on the screen. This feature is useful when the fish is moving fast,
especially in deep-sea areas or at lower screen speeds. Users can switch on/off the A scope
according to the actual situation
