Furuno FMD-3200 Operator's Manual page 264

16. RADAR OVERLAY
5. [INT Reject] reduces radar interference. Radar interference can
occur when your vessel is in the area of another radar that op-
erates in the same frequency band (3 GHz) as own radar. The
interference is seen on the screen as a number of bright spikes
either in irregular pattern or as dotted lines that extend from the
center of the edge of the picture. When this type of interference
appears on the screen, use the interference rejector.
Four settings are available, [1], [2], [3] and [OFF]. The higher the setting the great-
er the degree of interference rejection. Turn the rejector off when no interference
is present, so as not to miss small targets.
6. [Initiative Range], when checked, sends the current ECDIS range to the RCB. For
example, the current ECDIS range is 4 NM. Then, "4 NM" is sent to the RCB and
the RCB sends echo data within that range to the ECDIS. If multiple ECDIS units
are in the system, only one ECDIS can have [Initiative Range] checked, so all EC-
DIS displays are synched. If unchecked, the radar sends echo data corresponding
to the previously set ECDIS range.
7. Click the [RCB Detail Settings] button to show the [RCB Detail Settings] dialog
box. Set each item as shown on the next page. The dialog box has two divisions,
[Common] and [Individual]. The [Common] settings apply to all the radars con-
nected to the ECDIS via the Radar Connection Box. The [Individual] settings apply
to the radar currently feeding echo data to the ECDIS via the Radar Connection
Box.
Note: For FURUNO radars, it is recommended to use the settings set on the radar
in order to match the radar overlay picture with the radar picture.
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