Marine Radio User Manual
73
5
FUNCTIONS FOR RECEIVE
D Center mode
Displays signals around the displayed frequency
within the selected span. The set frequency is always
displayed at the center of the screen.
q Set a mode and frequency.
w Select
G
-
1
(Scope).
e Push [F-3
FIX
] momentarily to select the center
mode.
•“= ” appears when the center mode is selected.
r Push [F-4
SPD
] momentarily to select the sweep
speed.
• “≈” or “≈≈” appears when Slow speed or Fast speed is
selected, respectively.
t Push [F-1
SPN
] one or more times to select the
desired steps.
•±10, 25, 50, 100 and 250 kHz are available.
•Push and hold [F-1
SPN
] for 1 sec. to select the ±10
kHz step.
•The simple band scope operates in the peak level hold
mode. Peak levels are displayed in the background of
the current spectrum in a different color until the receive
frequency changes. This can be cleared by pushing
and holding [F-2
HLD
] for 1 sec., or deactivated in the
scope set mode. (below)
y Push [F-2
HLD
] to freeze the current spectrum dis-
play and range.
•“H ” and readout frequency indicator appear while the
function is in use.
NOTE: If there is a lot of signal noise, turn the pre-
amp OFF and the attenuator ON (p. 74) to reduce
the input level and improve the readability of the
scope.
[MENU/GRP]
[F-1]
[F-2] [F-3] [F-4]
•Push and hold [MENU/GRP] for 1 sec. once or twice
to select the menu group
G
(Graphic).
•Push [MENU/GRP] momentarily one or more times to
select the menu
G
-
1
(Scope).
D Scope set mode
This set mode is used to set the peak hold function
and scope size setting.
q Select
G
-
1
(Scope).
w Push and hold [F-4
SPD
] for 1 sec. to enter the
scope set mode.
e Push [F-1
≤
] or [F-2
≥
] to select the desired set
item.
r Set the desired condition using [DIAL].
•Push [F-4
DEF
] for 1 sec. to select a default condition.
t Push [
Z
(
MENU
/
GRP
)] to exit from set mode.
[MENU/GRP] [F-1] [F-2] [F-4] [DIAL]
•Push and hold [MENU/GRP] for 1 sec. once or twice
to select the menu group
G
(Graphic).
•Push [MENU/GRP] momentarily one or more times to
select the menu
G
-
1
(Scope).