Icom IC-7851 Instruction Manual page 25

%6 NOTCH KEY [NOTCH]
➥
Push to select the Notch function between auto,
manual, or OFF in the SSB or AM mode.
➥
Push to turn the Manual notch function ON or
OFF in the CW, RTTY, or PSK mode.
➥
Push to turn the Auto notch function ON or OFF
in the FM mode.
• "
" is displayed when the Manual notch filter is in
MN
use.
• "
" is displayed when the Auto notch filter is in
AN
use.
➥
Hold down for 1 second to select the Manual
notch width from wide, mid, or narrow.
✔ What is the Notch function?
The notch function eliminates unwanted CW or AM
carrier tones while preserving the desired voice signal.
The DSP circuit automatically adjusts the filtering fre-
quency to effectively eliminate unwanted tones.
%7 AUDIO PEAK FILTER/TWIN PEAK FILTER KEY
[APF/TPF]
During CW mode operation
➥
Push to turn the Audio peak filter ON or OFF.
• "
APF
" appears when audio peak filter is in use.
➥
Hold down for 1 second to select the APF pass-
band width from WIDE, MID, or NAR or from 320,
160, or 80 Hz, depending on the APF type set-
ting.
During RTTY mode operation
➥
Push to turn the Twin peak filter ON or OFF.
• "
TPF
" appears when twin peak filter is in use.
%8 PBT CLEAR KEY [PBT CLEAR]
Hold down for 1 second to clear the PBT settings.
• The [PBT CLEAR] indicator above this key lights when
the PBT function is in use.
%9 FILTER KEY [FILTER]
➥
Push to select one of three IF filter settings.
➥
Hold down for 1 second to enter the Filter
screen.
(p. 7-13)
(p. 5-6)
(p. 5-15)
(p. 7-5)
(p. 7-6)
^0 MEMORY WRITE KEY [MW]
Hold down for 1 second to store the selected fre-
quency and operating mode into the displayed
memory channel.
• This function is usable in both the VFO and memory
modes.
^1 KEYPAD
➥
Push to select the operating band.
• Push [GENE] to select the general coverage band.
➥
Push the same key 2 or 3 times to call up other
stacked frequencies in the band.
• Icom's triple band stacking register memorizes 3 fre-
quencies in each band.
➥
After pushing [F-INP], push to enter a frequency
or memory channel. Pushing [ENT] or [p]/[q] to
save and exit.
• Example: To enter 14.195 MHz, push [F-INP] [1] [4]
[•] [1] [9] [5] [ENT].
^2 VFO/MEMORY KEY [V/M]
➥
Push to toggle the selected operating mode be-
tween the VFO and memory.
➥
Hold down for 1 second to copy the memory con-
tents to the VFO.
^3 MEMO PAD-WRITE KEY [MP-W]
Enters the selected frequency and operating mode
into a memo pad.
• The five most recent entries remain in the memo pads.
• The number of memo pads can be expanded from 5 to
10 in the Others set screen.
^4 MEMO PAD-READ KEY [MP-R]
➥
Push to call up a frequency and operating mode
in a memo pad.
The 5 (or 10) most recently entered frequencies
and operating modes can be recalled, starting
from the most recent.
• The number of memo pads can be expanded from 5
to 10 in Others set screen.
➥
Hold down for 1 second to enter the Memo pad
list screen.
1-9
PANEL DESCRIPTION
(p. 11-4)
(p. 4-6)
(pp. 4-9, 11-2)
(pp. 4-5, 11-2)
(p. 11-5)
(p. 11-7)
(p. 15-15)
(p. 11-8)
(p. 15-15)
1