Sweep Timing - Furuno FCR-2127 Installation Manual

3. SETTING AND ADJUSTMENT
3.7

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 0.125 nm 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 0.125 nm range.
2. Adjust radar picture controls to display picture properly.
3. Select a target echo which should be displayed straightly.
4. Place the cursor on a value of the "Timing adj" on the "Radar Initialize" menu.
Radar Initialize
5. Rotate the wheel to set a suitable value and click the left button, which causes the target
to be displayed straightly. The setting range is 0 to 4095.
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