5-14
DD
Roofing filter selection
The IC-7800 has a 6 kHz roofing filter at the 1st IF fre-
quency. The roofing filter provides interference reduc-
tion from nearby strong signals.
q Push [FILTER] for 1 sec. to enter filter set screen.
w Select any mode except FM.
e Push [F-6•ROOFING] to select the desired filter
from 15 kHz (regular 1st IF filter) and 6 kHz
(roofing fil-
ter)
.
• Push [F-4•DEF] for 1 sec. to select a default value.
r Push [EXIT•SET] to exit filter set screen.
DD
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 [FILTER] 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 [EXIT•SET] 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 as your default setting
in filter shape set mode.
DD
Filter shape set mode
The type of DSP filter shape for each SSB, SSB data
and CW can be selected independently from soft and
sharp.
q Push [FILTER] for 1 sec. to enter filter set screen.
w Push [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 [EXIT/SET] to exit filter shape set mode.
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.
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.
