User manual - JG Technologies

5. Select a preset Zoom Factor (x2, x3, x4) or select Manual
Once selection is made you will be returned to the Display Mode
menu.
6. If Manual is chosen select Manual Zoom Factor
The manual zoom factor menu is displayed.
7. Select Manual Zoom Factor so that the zoom setting is
highlighted.
8. Using the Rotary Control change the zoom factor to the
required setting.
9. Press the Ok button, or select the Manual Zoom Factor menu
again to confirm the setting.
Adjusting the position of the fishfinder zoomed area
When the zoom function is selected, the system automatically
selects the zoom position so that the bottom details are always in the
lower half of the display. If required you can reposition the portion of
the image to be zoomed so that an alternative area is displayed.
From the fishfinder application, with Zoom preset selected:
1. Select Menu.
2. Select Adjust Preset , where is the preset
already selected.
3. Select Display Mode.
4. Select Zoom Position.
The manual zoom position menu is displayed.
5. Select Zoom Position .
Selecting the zoom position menu will switch the zoom position
between Auto and Manual.
6. If Manual is chosen use the Rotary Control to reposition the
zoomed area as required.
Fishfinder A-Scope mode
The A-Scope mode enables you to view a live (rather than historical)
image of the seabed and fish directly below your vessel.
The standard fishfinder display shows a historical record of fishfinder
echoes. If required, you can display a live image of the bottom
structure and the fish directly below the transducer by using the
A-Scope feature. The width of the bottom covered by the A-Scope
is indicated at the bottom of the window. A-Scope provides a more
precise and easier to interpret indication of the target strength.
There are three A-Scope modes:
Mode 1 Mode 2 Mode 3
Bottom Lock
The Bottom Lock function applies a filter to flatten the image of the
seabed and make any objects on or just above it easier to discern.
This feature is particularly useful for finding fish that feed close to
the bottom.
Bottom Lock is selected for individual fishfinder windows and
can replace or appear alongside the standard fishfinder image.
Adjusting the range of the bottom lock image allows you to view
more bottom details. You can also reposition the image on screen to
anywhere between the bottom of the window (0%) and the middle of
the window (50%) by using the Bottom Shift control.
Bottom Lock is selected for individual fishfinder windows and can
either replace (ON) or appear alongside (SPLIT) the standard
fishfinder image.
Adjusting the bottom lock range/position
From the fishfinder application, with bottom lock display mode
selected:
1. Select Menu.
2. Select Adjust Preset , where is the preset
already selected.
3. Select Display Mode.
4. Select Bottom Lock to switch between Full screen and Split
screen
5. Select B-Lock Range.
Selecting Bottom Lock Range will open the B-Lock Range menu
6. Select the B-Lock Range menu.
7. Use the Rotary Control to adjust the range to the required
setting.
8. Press the Ok button, or select the B-Lock Range menu again to
confirm the setting.
The A-scope image is
centred in the window.
The left-hand side of
the Mode 1 image is
expanded to give a more
detailed view.
The A-scope image
angles outward as
signal width increases
with depth.
162 e7 / e7D / e95 / e97 / e125 / e127 / c95 / c97 / c125 / c127