1. OPERATIONAL OVERVIEW
1-30
1.27.2 How to edit a customized echo
1. Select a customize echo option to edit (see paragraph 1.27.1).
2. Select the [CUSTOMIZE ECHO] box, then press the right button to display the
[CUSTOMIZE ECHO] menu.
3. Set the items below referring to the sections shown.
4. Select [VIDEO CONTRAST TYPE], then push the ADJUST knob.
5. Select [1], [2], [3] or [4] (Dynamic Range) or [A], [B], [C] (Curve) as appropriate
then press the left button. Refer to the description and illustration below.
1-4: Control dynamic range. 1 provides the widest dynamic range; 4 is the narrow-
est dynamic range.
A: Low level echo brilliance is reduced and noise and clutter are also reduced.
B: Low and high level echoes are displayed evenly.
C: High level echoes' outer edge has gradation to indicate the echo level, with the
higher level echo at the core.
6. Select [9 CONDITION], then push the ADJUST knob.
7. Select [2 NEAR STC CURVE], then push the ADJUST knob.
8. Select the appropriate setting for the current sea conditions, then push the AD-
JUST knob. The available settings are: [2], [2.5], [3], [3.5], [4.2]. A higher setting
is recommended for rough weather.
9. Select [1 STC ANT HEIGHT], then push the ADJUST knob.
10. Select the radar antenna height (above the waterline), then push the ADJUST
knob.
11. If necessary, select [2 LOW LEVEL ECHO] to reject low level echoes. The setting
range is [0] to [8]. The higher the figure, the stronger the low level echo that is
erased.
12. To save custom settings, select [SAVE] from [0 DEFAULT], then push the AD-
JUST knob.
1.27.3 How to restore a user customized echo to the saved settings
If you get lost in operation while changing the settings for a user customized echo, you
can easily restore the settings for that user customized echo saved at
paragraph 1.27.2.
1. Select the [CUSTOMIZE ECHO] box, then press the right button to display the
[CUSTOMIZE ECHO] menu.
2. Select [0 DEFAULT], then push the ADJUST knob.
3. Select [USER], then push the ADJUST knob.
• [INT REJECT] : section 1.21 • [HATCHING] : section 1.37
• [ECHO STRETCH] : section 1.22 • [NOISE REJECT] : section 1.25
• [ECHO AVERAGE] : section 1.23 • [PULSE] : section 1.17
• [TARGET ANALYZER] : section 1.37 • [ACE] : section 1.24
CONTRAST
LEVEL
CONTRAST
LEVEL
CONTRAST
LEVEL
CONTRAST
LEVEL
3
2
1
4
A
B C
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