4 showing radar picture, 5 selecting the range, 6 adjusting lcd backlighting and display tone – Furuno FMD-811 User Manual
Page 13: 7 adjusting control panel brilliance, 8 adjusting gain, a/c rain and stc (a/c sea)

3
1.4 Showing Radar Picture
After the power is turned on,ST-BY (Stand-
By) appears at the screen center.
Press the [ST-BY TX] key to display radar
picture in four gray tones according to echo
strength.
Press the [ST-BY TX] key again to set the
radar in stand-by.
1.5 Selecting the Range
The range selected automatically determines
the range ring interval and the number of
range rings.
Procedure
Press the [– RANGE +] key. The range and
range ring interval appear at the top left cor-
ner on the display.
Tips for selecting the range
• When navigating in or around crowded
harbors, select a short range to watch for
possible collision situations.
• If you select a lower range while on open
water, increase the range occasionally to
watch for vessels that may be heading
your way.
1.6 Adjusting LCD Backlighting
and Display Tone
The [BRILL] key adjusts the LCD back-
lighting in eight levels, including off. The
[TONE] key adjusts the tone (contrast) of
the display in 32 levels, including off.
Procedure
1) Press the [BRILL] key (or [TONE] key).
The display shown in Figure 1-3 appears.
BRILL
DOWN
BRILL
UP
TONE
DOWN
19 7