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7-7
7
FUNCTIONS FOR RECEIVE
D
DSP filter shape
The DSP filter shape for SSB, SSB data and CW can
be independently set to soft or sharp.
q
Hold down [FILTER] for 1 second.
• The Filter screen is displayed.
w
Select the SSB, SSB-D1 or CW mode.
Push [FILTER] several times to set the desired IF
e
filter to FIL1 (Wide), FIL2 (Mid) or FIL3 (Narrow).
e
Push [SHAPE](F) several times to set the desired
filter shape to soft or sharp.
• When selecting SSB-D2 or SSB-D3, and the 1.2 kHz
roofing filter, you can select the filter shape.
r
Push [EXIT•SET].
• Exits the Filter screen.
The filter shape can be independently set for the
Main and Sub bands, only when different modes are
set.
• When selecting “SHARP”
[EXIT/SET]
Mode keys
(F) Function keys
[FILTER] MAIN, SUB
• Roofing filter screen
D
Roofing filter selection
The IC-7850 has 1.2, 3, 6 and 15 kHz roofing filters for
the 1st IF frequency. The roofing filter provides interfer-
ence reduction from nearby strong signals.
Push [ROOFING](F) to set the desired filter width to
➥
1.2, 3, 6, or 15 kHz
(default)
.
• Hold down [DEF](F) for 1 second to select the default
value.
Mode
FIL1 FIL2 FIL3
Mode
FIL1 FIL2 FIL3
SSB
15
15
6
RTTY
15
6
6
SSB-D
6
6
6
PSK
6
6
6
CW
6
6
6
AM
15
15
15
• Roofing filter default value
(kHz)