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Icom IC-7851 - Page 25

Icom IC-7851
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1-9
1
PANEL DESCRIPTION
%6 NOTCH KEY [NOTCH]
(p. 7-13)
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.
MN
is displayed when the Manual notch filter is in
use.
AN
is displayed when the Auto notch filter is in
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 (p. 5-6)
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 (p. 5-15)
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] (p. 7-5)
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] (p. 7-6)
Push to select one of three IF filter settings.
Hold down for 1 second to enter the Filter
screen.
^0 MEMORY WRITE KEY [MW] (p. 11-4)
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. (p. 4-6)
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. (pp. 4-9, 11-2)
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. (pp. 4-5, 11-2)
Hold down for 1 second to copy the memory con-
tents to the VFO. (p. 11-5)
^3 MEMO PAD-WRITE KEY [MP-W] (p. 11-7)
Enters the selected frequency and operating mode
into a memo pad.
The ve 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. (p. 15-15)
^4 MEMO PAD-READ KEY [MP-R] (p. 11-8)
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. (p. 15-15)
Hold down for 1 second to enter the Memo pad
list screen.

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