Color; Pulse; Output Power; Alarm - JRC JFC-7050 Operation Manual

Operation
4.2. Noise Rejection
Your Echo sounder could be disturbed by the engine noise. This function can reject the noise from
the engine or other machinery instruments.
( The default setting is Off.)

5. Color

5.1. Bottom Color Level
This function adjusts the colors. Make it upper level, the color becomes darker.
( The default setting is Off.)
5.2. Color Rejection
There are 16 color levels for Echo sounder. The color bar is on the left of the Echo sounder. If the
level is higher, the color of the bar is deleted one by one.
5.3. Screen Color
Select the back ground color of the Echo sounder for your convenience.

6. Pulse

Select the pulse of the output from the transducer. Levels are among Low, Medium and High, which
depends upon the depth. Low is proper to research precise a fish school but it is not suitable to
measure a deep depth. High is opposite from Low.
( The default setting is Medium.)

7. Output Power

Select the output from the installed transducer. Levels are from off to 3. It should be careful about
the depth. If you set high level in a sallow depth, the Fish finder screen turns to red. You see
nothing expect red on the screen.
( The default setting is 3.)

8. Alarm

8.1. Depth
8.1.1. Deep Alarm
It alarms when the set deep depth is out of the range.
( The default setting is Off.)
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