Icom IC-7700 User Manual
Page 102
5-14
D
D
Roofing filter selection
The IC-7700 has 3, 6 and 15 kHz roofing filters at the
1st IF frequency. The roofing filter provides interfer-
ence reduction from nearby strong signals.
q
Push and hold
for 1 sec. to enter filter set
screen.
w
Select any mode except FM.
e
Push [F-6•ROOFING] to select the desired filter
width from 15 kHz
(default),
6 kHz and 3 kHz.
• Push and hold [F-4•DEF] for 1 sec. to select a default
value.
r
Push
to exit filter set screen.
D
D
DSP filter shape
The type of DSP filter shape for each SSB, SSB data
and CW can be selected independently from soft and
sharp.
q
Push and hold
for 1 sec. to enter filter set
screen.
w
Select SSB, SSB data or CW mode.
e
Push [F-7•SHAPE] to select the desired filter shape
from soft and sharp.
r
Push
to exit filter set screen.
The filter shape can be set for each band (HF and
50 MHz bands), mode, as well as the passband width
setting (CW only) independently from your default set-
ting in filter shape set mode.
D
D
Filter shape set mode
The type of DSP filter shape for SSB, SSB data and
CW can be selected independently from soft and
sharp.
q
Push and hold
for 1 sec. to enter filter set
screen.
w
Push and hold [F-7•SHAPE] for 1 sec. to enter filter
shape set mode.
e
Push [F-1•
Y
] or [F-2•
Z
] to select the desired item.
r
Rotate the main dial to select the filter shape from
soft and sharp.
t
Push
to exit filter shape set mode.
EXIT/SET
FILTER
EXIT/SET
FILTER
EXIT/SET
FILTER
5
FUNCTIONS FOR RECEIVE
Select the filter shape for SSB mode in HF bands.
The set filter shape is automatically used only
when the IF filter is set to 600 Hz or wider.
HF
SSB
(600Hz – )
SHARP
Select the filter shape for SSB data mode in HF
bands.
The set filter shape is automatically used only
when the IF filter is set to 600 Hz or wider.
SSB–D (600Hz – )
SHARP