Furuno USA Inc 9ZWRTR088B Manual De Usuario

2.  DESCRIPTION OF RADAR

When the SART is at a range greater than approximately 1 nm, the first dot is dis-
played at 0.64 nm past the true position of the SART. When the range closes so that 
the fast-sweep responses are also seen, the first range echoes are displayed at 150 
m past the true position.

When you find the SART position, do as follows:

1. Use the RANGE key to set the range scale to 6 nm or 12 nm.
2. Turn off [A/C Auto].
3. Turn off [Int Rejector].

To display only the SART echo clearly on the radar screen, reduce the tuning on man-
ual mode. The normal radar echoes get weak, but the SART echoes remain. Your ship 
comes near the SART, the arc for the SART display becomes larger. Most of the radar 
screen becomes fuzzy. Adjust the A/C SEA and GAIN controls to display the neces-
sary screen.

The RACON is a RAdar beaCON which sends 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 an echo in the shape of a rectangle 
originating at a point just past the position of the radar beacon. It has a Morse coded 
pattern. Note that the position on the radar display is not accurate.

Echo description

Your ship position

RACON signal

RACON station

Echoes on the radar screen