Koden Electronics RB719A Marine Radar RA55 User Manual C7 3PowerOn 1
Koden Electronics Co., Ltd Marine Radar RA55 C7 3PowerOn 1
Contents
C7
28 RA51/52/53/54/55 INSTRUCTION MANUAL – 05
5.3 Basic Operations ______________________________________
xxx = Keys to press
5.3.1 Turning On and Off
POWER
Press the "POWER" key to power on. The 2 (or 3)-minute timer
and "RADAR OFF" are displayed. After an initial 2 (or 3)-minute
warm-up sequence, the radar will go into standby mode. "STBY"
will be displayed on the screen. To power off, press and hold the
"POWER" key for more than 3 seconds.
5.3.2 Transmitting
POWER
Press "POWER" momentarily
and the radar picture appears
on screen. The unit is now
operating. Press "POWER"
again, and the unit will return
to the standby mode.
5.3.3 Adjusting the contrast and brilliance of screen, and key-backlight
xxx = Keys to press
BRILL
Press the "BRILL" key and control indicators will be displayed on
the screen. Use the up and down arrows on the cursor pad to select
the item you want to adjust, then adjust it with the control knob.
When you are through making adjustments, press the "BRILL" or
"ENT" key to exit. You can also press any other key and continue
with that function.
Brilliance Up/Down Select brilliance.
Control knob Adjust brilliance with knob.
Key backlight Up/Down Select key backlight.
Control knob Adjust key backlight with knob.
ENT Press "ENT" key to return.
5.3.4 Changing the range scale (RANGE UP, RANGE DOWN)
RANGE UP or Pressing "RANGE UP" key increases the distance the unit
will scan,
RANGE DOWN the "RANGE DOWN" key decreases it.
POWER ON
START
SCREEN
AT
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CHANGE
RANGE
RA51/52/53/54/55 INSTRUCTION MANUAL – 05 29
RADOME SCANNER (RA51)
RANGE 0.125
0.25 0.5 0.75 1.5 3 6 12 24 36
Number of rings 2 2 2 3 6 6 6 6 6 6
Range ring interval
0.0625
0.125
0.25 0.25 0.25 0.5 1 2 4 6
OPEN SCANNER (RA52)
RANGE 0.125
0.25 0.5 0.75 1.5 3 6 12 24 48
Number of rings 2 2 2 3 6 6 6 6 6 6
Range ring interval
0.0625
0.125
0.25 0.25 0.25 0.5 1 2 4 8
OPEN SCANNER (RA53)
RANGE 0.125
0.25 0.5 0.75 1.5 3 6 12 24 48 64
Number of rings 2 2 2 3 6 6 6 6 6 6 4
Range ring interval
0.0625
0.125
0.25 0.25 0.25 0.5 1 2 4 8 16
OPEN SCANNER (RA54)
RANGE 0.125
0.25 0.5 0.75 1.5 3 6 12 24 48 72
Number of rings 2 2 2 3 6 6 6 6 6 6 6
Range ring interval
0.0625
0.125
0.25 0.25 0.25 0.5 1 2 4 8 12
OPEN SCANNER (RA55)
RANGE 0.125
0.25 0.5 0.75 1.5 3 6 12 24 48 96 120
Number of rings 2 2 2 3 6 6 6 6 6 6 6 6
Range ring interval
0.0625
0.125
0.25 0.25 0.25 0.5 1 2 4 8 16 20
5.3.5 Automatic adjustment (AUTO)
"AUTO" adjusts the GAIN, STC and FTC automatically. If the "AUTO" key is pressed after
you've adjusted GAIN, STC, or FTC manually, they will all be switched to "AUTO" or harbor
mode (HBR). By pressing the "AUTO" key repeatedly, you alternate among the AT1, AT2
and HBR modes. By pressing "STC" key, all controls return to manual state.
AT1 Use when navigating in a harbor area, narrow channel, or area with small islands where
there is a high level of echo. The control condition is similar to turning down GAIN
slightly. *
AT2 Use on open sea to suppress sea clutter. The control condition is similar to high GAIN.
*
HBR Also for use when navigating in a harbor area, narrow channel, or area with small
islands. The FTC is switched to manual mode. The STC is set to a predetermined
value that you can select. See section 5.5.4.6.5 (7) "Setting Harbor STC".
* Manual FTC may be used in these modes to reduce the appearance of noise on the
screen.
You can make manual adjustments to GAIN and FTC during AUTO operation.
If the "GAIN" key is pressed, only GAIN enters the manual state.
If the "FTC" key is pressed, only FTC enters the manual state.
However, if the "STC" key is pressed, STC, GAIN, and FTC all enter the manual state.
5.3.6 Sensitivity adjustment (GAIN)
(1) When the "GAIN" key is pressed, the GAIN display characters on the left side of the
screen will be highlighted.
(2) Turn the control knob to select an acceptable level. The numbers will move in a range of 0
to 99.
(3) Press the "GAIN" key to exit from the adjustment state. You can also press any other key
and continue with that function.
To make adjustments manually:
GAIN Control knob GAIN --------------------The adjustment state is ended.
Other function key --Shift to other functions
AUTO AUTO -------------------GAIN, STC, and FTC are set at AUTO
and the adjustment state is ended.
30 RA51/52/53/54/55 INSTRUCTION MANUAL – 05
To switch from the MANUAL state
AUTO -------------------------------------------------------------- Set GAIN, STC and FTC at AUTO
5.3.7 Removing sea clutter (STC)
(1) When the "STC" key is pressed, the STC display characters on the left side of the screen
will be highlighted.
(2) Turn the control knob to select an acceptable level. The numbers will move in a range of
0 to 99.
(3) Press the "STC" key to exit from the adjustment state. You can also press any other key
and continue with that function.
To make adjustments manually:
STC Control knob STC The adjustment state is ended.
Other function key ----Shift to other functions
AUTO AUTO ---------------------STC, GAIN, and FTC are set at AUTO
and the adjustment state is ended.
To switch from the MANUAL state
AUTO --------------------------------------------------------------Set STC, GAIN and FTC at AUTO
5.3.8 Removing rain and snow clutter (FTC)
(1) When the "FTC" key is pressed, the FTC display
characters on the left side of the screen will be
highlighted.
(2) Turn the control knob to adjust to an acceptable level.
The numbers move in a range of 0 to 99.
(3) After you've made an adjustment, press the "FTC"
key again to exit. You can also exit by pressing any
other function key and continuing with that function.
To make adjustments manually:
FTC Control knob FTC --------------------The adjustment becomes ineffective.
Other function key --Shift to other functions
AUTO AUTO -------------------GAIN, STC, and FTC are set at AUTO
and these functions will become
ineffective.
To switch from the MANUAL state
AUTO --------------------------------------------------------------Set GAIN, STC and FTC at AUTO
5.3.9 Man Over Board (MOB)
To activate the Man Overboard function, press the "MOB" button at the lower right of the
display panel. This will send the boat's position to an external plotter through the NMEA
port using the "WPL" format. It will only work if you are connected to an external navigation
receiver and compass. You can then use the plotter to navigate a return to that position. To
check position data, select "MOB" from the "WINDOW" menu in the "SETUP". The position
of MOB and current position will be displayed on the screen. If you press the "MOB" key
while watching the MOB screen, MOB data will be cleared and you will return to previous
screen. If you press any other key, the MOB data will remain and you will return to the
previous screen you had been viewing.
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