Furuno NAVNET 1833 - Manual (Page 174)

5. CUSTOMIZING YOUR UNIT
5-4
Contents of radar display setup menu
Item Description Settings Default Setting
EBL
Reference References EBL bearing, shown in the
EBL data box, to North (True) or heading
(Relative). Relative with no heading
input. True only in course-up, north-up
and true motion. True, Relative
Relative
Cursor
Position Chooses how to display cursor position.
Note: “RNG & BRG-TRUE” requires
heading data and true bearing. The
equipment reverts to relative bearing
when heading data is lost. L/L: Lat/Long
position of cursor
TD: Loran C or
Decca TDs
RNG & BRG-REL:
Range and bearing
in relative bearing.
RNG & BRG-TRUE:
Range and bearing
in true bearing. RNG &
BRG-REL
Tuning Selects receiver tuning method. For
further details see “2.6 Tuning.” Auto, Manual Auto
Turns on/off dead sector graphic, which
shows area where no echoes are
transmitted. To set sector, select ON,
then enter range. Max sector is 135°.
The dead sector is shown with dashed
lines. TX Sector
Blanking On, Off Off (0°)
Noise
Rejection Electrical noise, appearing on the screen
as “speckles,” may be suppressed with
the noise rejector. Note that some forms
of interference cannot be suppressed. Off, Low, High
Low
2
nd
Echo
Rejection
Reduces second-trace echoes. See the
paragraph “2.24 Suppressing
Second-trace Echoes.” On, Off Off
Watchman
Time Sets watchman stand-by period. For
further details see the paragraph “2.23
Watchman.” 5, 10, 20 minutes 5 minutes
Range
Unit Selects unit of range measurement. nm, km, sm nm
Trail Mode Sets echo trail reference.
Note: Relative trail is available in all
presentation modes except true motion.
True trail is available in all modes. True: Echo trails
plotted in their actual
speeds and courses.
Requires compass
signal and speed
input.
Relative: Echo trails
move relative to own
ship. Relative