Furuno FCV-1200LM - Manual (Page 43)

2-9
2.4 TX/RX Menu
DISP ALM TX/RX USER-1/2 SYSTEM
Menu for TX/RX setting.
[-/+]: Change set, [EXIT (knob)]: Exit
PRR LEVEL : (0~20,S)
STC : (0~10)
GAIN ADJ : +
RX BAND : STD
TX PULSE : STD
PULSE LENGTH : 0.2msec (0.2~5.0)*2
STC : (0~10)
GAIN ADJ : +
RX BAND : STD
TX PULSE : STD
PULSE LENGTH : 0.2msec (0.2~5.0)*2
*1: FCV-1200L only
*2: The setting becomes available when
MANUAL is selected at TX PULSE.
*1
*1
TX/RX menu
PRR LEVEL
Changes pulse repetition rate. Normally, the highest rate (20) is used. When in shallow waters
second reflection echoes may appear between surface and actual bottom echo. In this case
lower the PRR level.
The choice “S” means the ship’s speed dependent mode, where the PRR changes
automatically with ship’s speed. (Requires ship’s speed input.) For further information about the
ship’s speed dependent mode, see page 1-20.
STC (High and Low Frequencies)
Adjusts STC level for the high and low frequencies, and is useful for suppressing surface noise.
The setting range is 0-10; the higher the setting the greater the extent of suppression. Setting
10 suppresses noise up to about 5 m. Turn off the STC when there is no noise on the screen,
otherwise weak echoes may be missed.
GAIN ADJ (High and Low Frequencies)
Adjusts gain (range: -50 to +50) of transceiver unit selected. Adjust the setting when the GAIN
control cannot effectively adjust the gain.