ICOM IC-7000 说明手册

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页码 166
71
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
G--1
1 (Scope).
e Push 
[F-3
F
FI
IX
X
]
momentarily to select the center
mode.
• “= ” appears when the center mode is selected.
r Push 
[F-4
S
SP
PD
D
]
momentarily to select the sweep
speed.
• “≈” or “≈≈” appears when Slow speed or Fast speed is
selected, respectively.
t Push 
[F-1
S
SP
PN
N
]
one or more times to select the
desired steps.
• ±10, 25, 50, 100 and 250 kHz are available.
• Push and hold 
[F-1
S
SP
PN
N
]
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
H
HL
LD
D
]
for 1 sec., or deactivated in the
scope set mode. (p. 72)
y Push 
[F-2
H
HL
LD
D
]
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. 72) 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
G (Graphic).
• Push 
[MENU/GRP]
momentarily one or more times to
select the menu G
G--1
1 (Scope).
D
Scope set mode
This set mode is used to set the peak hold function
and scope size setting.
q Select G
G--1
1 (Scope).
w Push and hold 
[F-4
S
SP
PD
D
]
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 
D
DE
EF
F
]
for 1 sec. to select a default condition.
t Push 
[
Z
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
G (Graphic).
• Push 
[MENU/GRP]
momentarily one or more times to
select the menu G
G--1
1 (Scope).