
11-8
Displaying LORAN C TDs
1. Select GRI and press the EDIT soft key to
show the GRI & sta. pair window.
GRI & STA. PAIR
▲
9940 11-27
▼
U.S. WEST COAST
▼
GRI & sta. pair window
2. Press
▲
or
▼
to select GRI code. Press
!
to enable selection of station pair, and then
press
▲
or
▼
to select station pair. See the
Loran C chain list at the end of this manual
for GRI and station pairs.
3. Press the ENTER soft key or the [ENTER]
key to register your selection.
4. If necessary, you may enter a position
offset to refine Loran C position. Select
LORAN C CORRECTION1 or
CORRECTION2 and press the EDIT soft
key. Enter correction value and press the
ENTER soft key or the [ENTER] key. Use
the + <--> - soft key to switch from plus to
minus and vice versa.
Displaying DECCA TDs
1. Select DEC CHAIN and press the EDIT
soft key to show the chain sta. pair window.
CHAIN STA. PAIR
▲
20 P-R
▼
FRENCH
▼
Chain sta. pair window
2. Press
▲
or
▼
to select Decca chain
number. Press
!
to enable selection of
lane, and then press
▲
or
▼
to select lane
pair (R: red, G: green and P: purple). Refer
to the Decca chain list at the end of this
manual.
3. Press the ENTER soft key or the [ENTER]
key to register your selection.
4. If necessary, you may enter position offset
to refine Decca position. Select DECCA
CORRECTION1 or CORRECTION2 and
press the EDIT soft key. Enter correction
value and press the ENTER soft key or the
[ENTER] key. Use the + <--> - soft key to
switch from plus to minus and vice versa.
11.4 SOUNDER
SETUP
OPTIONS menu
This menu provides video sounder facilities
such as noise and interference reduction,
range setup and system setup.
1. Press the [MENU] key.
2. Press the SOUNDER SETUP OPTIONS
soft key.
GPS 3D
SYSTEM
SETUP
EDIT
NOISE LIMITER
OFF
CLUTTER
AUTO
SIGNAL LEVEL
OFF
PICTURE ADVANCE
1/1
E/S WINDOW
STD
RETURN
RANGE
SETUP
SYSTEM
SETUP
Sounder setup menu
SOUNDER SETUP OPTIONS
menu description
NOISE LIMITER
Suppress interference from other acoustic
equipment operating nearby or other electronic
on your boat.
CLUTTER
Suppresses low level noise due to dirty water
or noise, and the default setting is AUTO.
This setting is available when MANUAL is
selected at MODE/FREQonly.
SIGNAL LEVEL
Erases selected echo level.
PICTURE ADVANCE
Selects picture advance speed.
Содержание GP-1640F
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