Furuno FCR-28x9 Manual De Usuario

2.  RADAR, CHART RADAR OPERATION

You can select the pulse length for the 0.5 to 24 nm range 
scales as shown below.

1. Open the menu then select [1 ECHO], [1 CUSTOMIZE 

ECHO] and [8 PULSE] menus to show the [PULSE] 
menu.

2. Do one of the following: 

Control Unit: Press appropriate numeric key to select 
corresponding item number.
Trackball module: Click appropriate item.

3. Select desired option by pressing the numeric key 

pressed at step 2 or spinning the scrollwheel.

4. To confirm selection, press the ENTER key on the Con-

trol Unit, or push the left button.

1. Click the [Pulse] button at the top of the InstantAccess bar.

2. Click a pulse length.

The GAIN control (or [Gain] button) adjusts the sensitivity of the receiver. The proper 
setting is such that the background noise is just visible on the screen. If you set up for 
too little sensitivity, weak echoes may be missed. On the other hand excessive sensi-
tivity yields too much background noise; strong targets may be missed because of the 
poor contrast between desired echoes and the background noise on the display.

Adjust the gain so background noise is just visible on the screen.

While monitoring the radar image and the gain slider bar, operate the GAIN control to 
adjust the sensitivity.

For coarse adjustment, put the cursor within the slider bar area then push the left 
button. For fine adjustment, put the cursor at the end of the slider bar then roll the 
trackball while pushing and holding down the left button. Release the button to finish.

 

 

 

Put cursor on slider bar and push and 
hold left button. Drag cursor to new 
location then release left button.