Advancement Synchronized With Ship's Speed - Furuno 1722C Operator's Manual

4. VIDEO SOUNDER OPERATION
4.10.2

Advancement synchronized with ship's speed

With speed data provided by a speed measuring device, picture advance speed
may be automatically synchronized with ship's speed. As shown in the figure
below the horizontal scale of the display is not influenced with the speed
dependent picture advance mode active, thus it permits judgement of fish school
size and abundance at any speed. With the advancement synchronized with
ship's speed the picture advance speed setting (on the previous page) is
ignored.
How the speed-dependent picture advance mode works
Activating/deactivating the speed-dependent picture advance mode
1. Press the [MENU] key followed by the SOUNDER MENU soft key.
2. Select SPD SENSING PIC ADV.
3. Press the EDIT soft key to open the setting window.
4. Use the cursor pad to select ON or OFF (default setting) as appropriate.
5. Press the ENTER soft key.
6. Press the [MENU] key to close the menu.
Note: Use the same speed data sentence (STG or STW) throughout the network
for smooth advancement of the sounder picture.
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