32
controls return to manual state.
AT1
Use when find navigation way in much echo such as port area, narrow channel,
small islands area. The control condition is similar to slightly down GAIN.
AT2
Use at open sea to suppress the sea clutter. The control condition is similar to
high GAIN.
HBR Use at in a bay area, inlet, or a harbor. The control condition becomes manual
STC by
using the value established HARBOR of ADJUST menu.
Note) Refer to "Setting STC circuit(STC)" in section 5.5.4.5.4(6).
Note) When you select HBR mode, FTC will be switched to MANU mode.
* What happens if GAIN, STC, and FTC keys are pressed during AUTO operation?
1) If GAIN key is pressed,
Only GAIN enters a manual state.
2) If FTC key is pressed,
Only FTC enters manual state.
3) If STC key is pressed,
STC, GAIN, and FTC enter manual state.
5.3.6 Sensitivity adjustment (GAIN)
(1) When the "GAIN" key is pressed, the GAIN
display on the left side of the screen will be
reversed as
G 35
and the adjustable state will be entered.
(2) When the control knob is turned, the figure will
be shifted within a range of 0 and 99, and the
sensitivity can be manually adjusted. When
the "AUTO" key is pressed, all (GAIN, STC and
FTC) will enter an AUTO state.
(3) After the adjustment is finished, press the
"GAIN" key to exit from the adjustment state. If
some other function key is pressed, shift to
that function will take place.
(a) To make adjustments by MANUAL (When the GAIN key is pressed under AUTO operation,
shift to a manual operation will take place.)
GAIN
→
Control knob
→
GAIN -------------------------The adjustment state is ended.
µθ
>
Other function key
•
------Shift to other functions
µθ
> AUTO
µθ
>
AUTO ------------------------GAIN, STC, and FTC are set at AUTO and the
adjustment state is ended.
(b) To switch from the MANUAL state
AUTO -------------------------------------------------------------------------Set GAIN, STC and FTC at AUTO
5.3.7 Removing sea clutter (STC)
. 75
.25
HU
G 50
ST’BY
+
Содержание RA40C
Страница 24: ...14 Horizontal line Line of sight θ Fig 3 2 Obtaining sufficient dip angle ...
Страница 48: ...38 The function can be changed at the KEY ASSIGNMENT function in the CUSTOM menu of the SETUP ...
Страница 69: ...73 ...
Страница 80: ...63 a PPI Screen All functions can be used on this screen D V T D Q T g t PPIScr een ...
Страница 93: ...52 ...