Furuno FAR-2157 installation manual Other Settings, Echo menu setting

3.5 Other Settings

ECHO menu setting

Open the ECHO ADJ menu as described on page 3-3 and 3-4.

[ECHO ADJ]

1BACK

2CABLE ATT ADJ AUTO/MANUAL 30

3HD ALIGN 000.0°

4TIMING ADJ

0

5MBS 0

6DEFAULT ANT HEIGHT 5/7.5/10/15/20/ 25/30/35/40/45/ more 50 m

7NEAR STC CURVE 2/2.5/3/3.5/4.2

8MID STC CURVE

3/4/5/6

9FAR STC CURVE 6/7/8

0RING SUPPRESSION 0

ECHO ADJ menu

CABLE ATT ADJ

Before adjusting, set the radar as follows (Same as default setting of PICTURE1): IR: 2, ES: off, EAV: off, 24nm range, long pulse

To adjust the cable attenuation manually, choose MANUAL and push the thumbwheel. With the gain set to 80, spin the thumbwheel until noise just appears on the screen. Default setting is 30 for the antenna cable length of 15 m. The setting range is 0 to 73.

To adjust the cable attenuation automatically, choose AUTO and push the thumbwheel. The message "CABLE ATT ADJ" appears (in red) at the bottom of the screen. It takes about five min- utes to complete the adjustment, after which the radar goes into stand-by.

DEFAULT ANT HEIGHT

Select height (m) of the radar antenna unit from the sea surface from among 5, 7.5, 10, 15, 20, 25, 30, 35, 40, 45 and "more 50 m".

NEAR STC CURVE, MID STC CURVE AND FAR STC CURVE

The default setting is suitable for most conditions. If necessary, change the setting according to sea conditions.

RING SUPPRESSION

This is mainly used to removes "ring" noise that appears in the waveguide-type radar. Adjust so the rings disappear at the range of 0.125 nm. The setting range is 0 to 255.

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