Furuno NAVNET 1823C - Manual (Page 182)

5. CUSTOMIZING YOUR UNIT
5-8
4. Select function desired with the trackball, then press the ENTER soft key or
[ENTER] knob to register your selection.
5. Press the [MENU] key to close the menu.
Radar function keys
Menu Item Function
Function Key
Label
OFF Assigns no function. —
HL: HDG LINE OFF Turns heading line off. HL
MOD: MODE Selects presentation mode. MOD
GAI: GAIN Shows gain sensitivity adjustment window. GAI
SEA: A/C SEA Shows A/C SEA adjustment window. SEA
RAI: A/C RAIN Shows A/C RAIN adjustment window. RAI
FTC: FTC Displays FTC window. Available with Model 1700
series radar. Inoperative otherwise. FTC
ES: ECHO STRETCH Turns echo stretch on/off. ES
PLS: PULSE LENGTH Sets pulselength (long or short). PLS
ZOM: ZOOM Turns zoom on/off. ZOM
OFC: OFFCENTER Press to shift display center to cursor location.
Press again to turn shift off and return cursor to
display center. OFC
TRL: ECHO TRAIL Starts/stops echo trails. TRL
RNG: RINGS ON/OFF Turns range rings on/off. RNG
TLL: TLL OUTPUT Outputs cursor position, in NMEA format, to
navigator. TLL
ALM: GUARD ALARM Displays alarm soft keys. ALM
EBL: EBL Switches control between EBL1 and EBL2 with
each press. EBL
VRM: VRM Switches control between VRM1 and VRM2 with
each press. VRM
TTM: TTM ON/OFF Turns TTM (Tracked Target Message) display
on/off. TTM
WMK: WPT ON/OFF Turns waypoint marker on/off. WMK
WTM: WATCHMAN Turns watchman on/off. WTM
ACQ: ACQUISITION Acquires and tracks cursor-selected target.
(Requires ARP-equipped Model 1800/1900 series
network radar.) ACQ
TX: STBY/TX Toggles between standby and transmit TX
RSR: RADAR SOURCE Selects source for radar picture. RSR
DBX: D. BOX ON/OFF Turns data boxes on/off. DBX
CHG: CHANGE CNTRL Changes display control in combination display. CHG
Note: To use CHANGE CNTRL set it on all displays, with the same soft key number.