ICOM IC-7000 用户手册

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页码 166
52
4
RECEIVE AND TRANSMIT
4
• Preamp and attenuator (p. 74)
➥ Push [P.AMP/ATT] momentarily to turn the pre-
amp ON or OFF.
• “
” appears when the preamp is set to ON.
➥ Push [P.AMP/ATT] for 1 sec. to turn the attenua-
tor ON.
• Push
[P.AMP/ATT] momentarily to turn the attenuator
OFF.
• “
” appears when the attenuator is set to ON.
• Twin PBT (passband tuning) (p. 79)
➥ Push [PBT/M-ch/RIT] (switch) momentarily once
or twice to select the twin PBT ON or OFF (M-ch
RIT).
• PBT indicator lights green when the twin PBT is se-
lected.
➥ Rotate [PBT/M-ch/RIT] (controls–inner/outer).
• Push
[PBT/M-ch/RIT(
CLR
)] to clear the settings.
• AGC (auto gain control) (p. 76)
➥ While “M-3” is selected, push [F-3 AGCmomen-
tarily one or more times to select AGC fast, AGC
middle and AGC slow.
• “
,” “
” and “
” appears when the
fast time constant, middle time constant and slow
time constant is selected, respectively.
➥ While “M-3” is selected, push [F-3 AGCfor 1
sec. to enter the AGC set mode.
• Push
[F-2 FAST][F-3 MIDor [F-4 SLOWto select
the time constant, then rotate 
[DIAL] to adjust the time
constant.
• Noise blanker (p. 80)
➥ Push [NB/ADJ] to turn the noise blanker ON and
OFF.
• “
” appears when the noise blanker is set to ON.
➥ Push [NB/ADJ] for 1 sec. to enter the noise
blanker set mode, then rotate 
[DIAL] to adjust the
threshold level, or noise pulse width.
• DSP noise reduction (p. 81)
➥ Push [NR/LEV] to turn the DSP noise reduction
ON and OFF.
• “
” appears when the DSP noise reduction is set to
ON.
➥ Push [NR/LEV] for 1 sec. to enter the noise re-
duction level set mode, then rotate 
[DIAL] to ad-
just the DSP noise reduction level.
• Manual notch filter (pgs. 82, 83)
➥ Push [MNF/ADJ] to turn the manual notch filter
ON and OFF.
• “
” appears when the manual notch filter is set to
ON.
➥ Push [MNF/ADJ] for 1 sec. to enter the manual
notch filter set mode.
• Push
[F-2 NF1][F-3 NF2to select the notch filter,
push
[F-4 NWto set the filter width, rotate [DIAL] to
set the attenuating frequency.
1
4
function (p. 32)
➥ While “M-3” is selected, push [F-2 1/4to turn
the
1
4
function ON and OFF.
• “
” indicator appears when the function is activate.
• Push and hold 
[MENU/GRP] for 1 sec. once or twice
to select the menu group M.
• Push
[MENU/GRP] momentarily one or more times
to select the menu M-3.
DConvenient functions for receive