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74
5
FUNCTIONS FOR RECEIVE
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D
1st IF filter selection
(Mode: SSB/CW/RTTY/AM)
The IC-9100 has a 15 kHz filter passband width at the
1st IF frequency. The 1st IF filters reduce interference
from strong nearby signals.
If the optional FL-430
1st
if
filter
(6
k
h
z
)
is installed,
a 6 kHz filter width can be used. Or, if the FL-431
1st
if
filter
(3
k
h
z
)
is installed, a 3 kHz filter width can be
used.
• The filter passband width can be selected on only the
HF/50 MHz band frequency.
q
Hold down [FILTER] for 1 second to display the “FIL”
screen (Filter).
w
Select SSB, CW, RTTY or AM mode.
• The passband widths for FM and DV modes are fixed,
and have no options.
e
Hold down [F-5] for 1 second to select the desired
filter width from 15 kHz
,
6 kHz and 3 kHz.
• Hold down [F-3] for 1 second to reset to the default filter
setting, if desired. (The filter passband width setting is
also reset to the default setting.)
r
Push [MENU] to save, and exit the “FIL” screen.
D
IF (DSP) filter shape
(Mode: SSB/CW)
A soft or sharp type of DSP filter shape for both SSB
and CW can be independently selected.
q
Hold down [FILTER] for 1 second to display the “FIL”
screen (Filter).
w
Select the SSB or CW mode.
e
Push [F-5] once or twice to select either the soft or
sharp filter shape.
r
Push [MENU] to save, and exit the “FIL” screen (Fil-
ter).
[MENU]
[FILTER]
[F-5]
[F-3]
15 kHz is selected.
B W
S S B - 2 2 . 4 K
R : 1 5 K
S H A R P
F I L
S
0
B
2 . 4 K
[MENU]
[FILTER]
[F-5]
B W
S S B - 2 2 . 4 K
S H A R P
F I L
S
0
B
2 . 4 K
B W
S S B - 2 2 . 4 K
S O F T
F I L
S
0
B
2 . 4 K
Push