How To Suppress Main Bang; Dual Radar Display - Furuno FAR-3220-NXT Installation Manual

3.4

How to Suppress Main Bang

Main bang is the clutter at the center of the screen that you typically see on the radar
display, and it may mask close-in targets. If main bang appears at the screen center,
suppress it as follows.
1. Transmit the radar on a long range and then wait ten minutes.
2. Adjust the gain to show a slight amount of noise on the display.
3. Select the 0.25 NM range, and turn off the A/C SEA control.
4. Show the [RADAR INSTALLATION] menu, then select [1 ECHO ADJ] followed by
[4 MBS].
5. Set a value that causes the main bang to just disappear. The setting range is 0 to
255.
3.5

Dual Radar Display

The dual radar display shows radar images
from two radar sources on one radar display.
Any combination of X- and S-band radars is
possible.
Note: The [RADAR INSTALLATION] menu is
inoperative (grayed out on the installation
menu) when the dual radar display is active.
3.5.1 How to enable, disable the dual
radar display
1. Open the [RADAR INSTALLATION] menu,
then select [OTHERS] menu.
2. Select [5 COMBINE FUNC].
3. Select [OFF] or [ON] as appropriate.
3. SETTINGS AND ADJUSTMENTS
Image from main radar
Image from
external radar
3-3