Furuno FAX-30 - Manual (Page 36)

2. FAX OPERATION: NAVNET
2-14
2.5.2 Phasing 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.
2.5.3 Noise 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.