Furuno 2127-BB Manual De Usuario

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3. SETTING AND ADJUSTMENT 
 
 
 
3-6
3.4 Adjustment 
Sweep 
Timing 
Sweep timing differs with respect to the length of the signal cable between the antenna unit 
and the processor unit. Adjust sweep timing at installation to prevent the following 
symptoms: 
 
•  The echo of a “straight” target (for example, pier), on the 0.25 m range, will appear on the 
display as being pulled inward or pushed outward. See Figure below. 
•  The range of target echoes will also be incorrectly shown. 
(1) Correct               (2) Target pushed           (3) Target pushed
                                             inward                            outward
 
Examples of correct and incorrect sweep timings 
 
1.  Transmit on the 0.25 nm range. 
2.  Adjust radar picture controls to display picture properly. 
3.  Select a target echo which should be displayed straightly. 
4.  Press the [4] key to choose the [TIMING ADJ] on the [ECHO ADJ] menu. 
[ECHO ADJ]
1  BACK
2  CABLE ATT ADJ
      AUTO/MANUAL 
30
3  HD ALIGN
000.0
°
4  TIMING ADJ
0
5  MBS
0
6  DEFAULT ANT HEIGHT
5/7.5/10/15/20/
25/30/35/40/45/
more 50 m
7  NEAR STC CURVE
2/2.5/3/3.5/4.2
8  MID STC CURVE
3/4/5/6
9  FAR STC CURVE
6/7/8
0  RING SUPPRESSION
0
 
5.  Rotate the wheel to set a suitable value which causes the target to be displayed 
straightly. The setting range is 0 to 4095. 
6.  Press the [MENU] key to finish.