Raymarine C140w, User Reference Handbook, Page: 64 / 222

6. Press the OK button.
Resetting the chart offset value
1. Press the MENU button.
2. Highlight the Chart Setup menu option, and press the right
cursor key to select it.
3. Highlight the Chart Offset option, and press the right cursor
key to select it.
4. Press the OFFSET softkey to select the ON option.
5. Press the SET OFFSET softkey.
6. Press the CLEAR OFFSET softkey.
Chart layers
Aerial photo overlay
You can overlay an aerial photo on to the chart display, helping you
to interpret your environment and its features.
If you are using a suitable chart card, you can overlay an aerial
photo on to the chart display. This covers the navigable waters up to
three miles inside the coastline.
Beyond these limits, the land will appear green, and the resolution is
dependent on the region covered by the chart card you are using.
Using the options in the Cartography Setup Menu, you can specify
whether the aerial photo overlay is displayed for land areas only, or
for land and sea areas.
You can also adjust the opacity of the aerial photo overlay if required.
Note: When the CHART VIEW mode is set to SYSTEM, the
aerial photo overlay is displayed in ALL networked displays.
Enabling aerial photo overlay
In the chart application:
1. Press the PRESENTATION softtkey.
2. Press the CHART LAYERS softkey.
3. Press the AERIAL OVERLAY softkey repeatedly until the ON
option is selected.
4. Press the OK button.
Specifying aerial overlay opacity
In the chart application:
1. Press the PRESENTATION softtkey.
2. Press the CHART LAYERS softkey.
3. Press the AERIAL OVERLAY softkey repeatedly until the ON
option is selected.
The opacity gauge is displayed above the softkey.
4. Using the rotary control, select the level of opacity required,
between 1 and 100%.
5. Press the OK button.
Specifying the aerial overlay area
In the chart application, with aerial photo overlay enabled:
1. Press the MENU button.
2. Using the trackpad, select the Cartography Setup menu item.
3. Using the trackpad, select the Aerial Photo Overlay menu item.
4. Press the trackpad right to select the On Land or On Land and
Sea option, as appropriate.
64 C-Series Widescreen user reference