Furuno FAX-30 manual Phasing signal out of synchronization, Noise rejection, Sync entry window

Models: FAX-30

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2. FAX OPERATION: NAVNET

2.5.2Phasing signal out of synchronization

The SYNC soft key functions to fine tune the phasing signal. If the dead sector is plotted at an angle even when the phase is properly selected, adjust the synchronization to display the dead sector straightly.

Example of phasing signal out of synchronization

1.With a facsimile image displayed (see paragraph 2.4), press the EDIT IMAGE soft key.

2.Press the SYNC soft key.

SYNC

+00

Sync entry window

3.Enter a sync value that displays the dead sector straightly. If the dead sectors appears as in the left-hand figure in example of phasing signals in the illustration above, enter a larger value and for the right-hand figure, enter a smaller value. The setting range is –50 to +50.

4.Press the ENTER soft key.

5.Press the RETURN soft key several times to return to the standby display.

2.5.3Noise rejection

If noise speckles appear on the image, turn on the noise rejector as below to remove the noise.

1.With a facsimile image displayed (see paragraph 2.4), press the EDIT IMAGE soft key.

2.Press the NOISE REJECT soft key.

NOISE REJECT

°

§OFF LOW MEDIUM

HIGH

Noise rejector options

3.Rotate the [ENTER] knob to choose the noise rejection level desired. HIGH provides the greatest degree of noise rejection.

4.Press the ENTER soft key.

5.Press the RETURN soft key several times to return to the standby display.

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Page 36
Image 36
Furuno FAX-30 Phasing signal out of synchronization, Noise rejection, Example of phasing signal out of synchronization