Furuno 851 MARK-2 User Manual download pdf (Page 37)

3-7

3.7 Racon (Radar Beacon)

A racon is a radar transponder which emits

a characteristic signal when triggered by a

ship’s radar (usually only the 3 centimeter

band). The signal may be emitted on the

same frequency as that of the triggering

radar, in which case it is superimposed on

the ship's radar display automatically.

The racon signal appears on the PPI as a

radial line originating at a point just beyond

the position of the radar beacon or as a

Morse code signal (see figure below)

displayed radially from just beyond the

beacon.

Racon

Figure 3-9 Appearance of racon signal

on the display

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