Instruction Manual

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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