Instruction Manual

RA51/52/53/54/55 INSTRUCTION MANUAL – 05 33
5.4.8 Temporarily erasing heading marker (HDG OFF)
The heading marker is temporarily removed from the screen by holding down the “HDG OFF”
key.
5.4.9 Using parallel cursors (///CSR)
Press the “///CSR” key and parallel cursors will appear on the screen. As you move the EBL, the
parallel cursors also move. To cancel the function, press "///CSR" key once more.
5.4.10 Establishment of the indication of the RANGE RINGS (RINGS)
Press the “RINGS” key to make range rings appear on the screen. Press again to remove them.
5.4.11 Variable range function (VAR RNG)
The "RANGE UP" and "RANGE DOWN" keys change the range of the radar in steps, but this can
be done in a continuously variable mode by using "VAR RNG". When you press the key, VAR will
be displayed at the upper left of the screen (beside MODE). Pressing the up and down cursor
arrows changes the display. To exit this function, press "VAR RNG" again.
5.4.12 Changing display modes (MODE)
Pressing the "MODE" key will step you through the various screen display modes: heads up (HU),
heading set (HS), North up (NU), course up (CU), and true motion (TM). Heading data from a
compass is needed for NU, CU and TM to function. TM is only displayed on a PPI screen. The
mode will automatically change to NU on other screens.
5.4.13 Guard Zone (GZ)
A guard zone can be created around your boat at any distance and any angle range. Whenever
another vessel enters the zone, an alarm sounds. This is called the IN MODE. You can also set an
OUT MODE that monitors when a target leaves the guard zone. The guard zone is set using the
"GZ" soft key. IN MODE or OUT MODE must be selected via the "MENU" key under the "NAV"
heading.
To set a guard zone, press the "GZ" soft key. Set a center point for the zone by moving the cross
with the cursor pad, then press "ENT". Next set the area with the cursor pad and press "ENT"
again. The guard zone will remain in effect until you press the "GZ" key twice. While a guard
zone is on, the text "GZ IN" will appear at the left of the screen.
When the alarm sounds, press either the "MENU" or "ENT" key to turn it off. Select between the
IN MODE and OUT MODE by pressing "MENU", then selecting SETUP>CUSTOM>PRESET2.
The volume level of the alarm can also be set in the same place.
GZ Up/Down & Left/Right ENT Up/Down & Left/Right ENT Setting completed
(Setting the center of GZ) (Setting the scope of GZ)
GZ ------------------------------------------------------------------------------------------- Canceling GZ
5.4.14 Off Center (OFF-C)
You can set the screen display so that it just shows what's directly in front of your boat while
underway, or it only displays a portion of the entire scanner sweep in any direction. Press the
"OFF-C" soft key and use the cursor pad to set an off-center point on the screen for the boat's
location. Press "ENT" and your boat's location will now be moved to the new cursor position. The
text "OFF-C" will be displayed at the upper right of the screen. To cancel the off-center function,
press "OFF-C" again.
Note: *VRM2 and EBL2 start point do not follow the OFF-C function during a floating state. VRM2
and EBL2 functions will work in the OFF-C mode.