Furuno FAR-28x7 Series - Manual (Page 126)

2. RADAR OBSERVATION
2-8
2.4 RACON
A RACON is a radar beacon which emits radar receivable signals in the radar
frequency spectrum (X- or S-band). There are several signal formats; in general,
the RACON signal appears on the radar screen as a rectangular echo
originating at a point just beyond the position of the radar beacon. It has a Morse
coded pattern. Note that the position on the radar display is not accurate.
RACON
RACON