Furuno GD-1700C - Manual (Page 196)

5. CUSTOMIZING YOUR UNIT
5-26
Contents of radar display setup menu
Item Description Settings
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
Cursor Position Chooses how to display cursor position.
Note: “RNG & BRG-TRUE” requires
heading data and true bearing.. The
equipment reverts to “Relative” when
heading data is lost.
LAT/LON: Lat/Long
position
TD: Loran C or Decca
TDs
RNG & BRG-REL:
Range and bearing
referenced to ship’s
heading
RNG & BRG-TRUE:
Range and bearing
referenced to North
Tuning Selects receiver tuning method. For
further details, see the paragraph “3.6
Tuning.” Auto, Manual
Turns on/off dead sector graphic, which
shows area where no echoes are
transmitted. To set, select ON then
enter range. Max. sector is 135°.
Dashed lines mark the dead sector. TX Sector
Blanking On, Off
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, High, Low
(Con’t on next page)