D Roofing Filter Selection; D Dsp Filter Shape; D Filter Shape Set Mode - Icom IC-7800 Instruction Manual

D Roofing filter selection

D DSP filter shape

D Filter shape set mode

Select the filter shape for SSB mode in HF bands.
Select the filter shape for SSB data mode in HF
bands.
FUNCTIONS FOR RECEIVE
The IC-7800 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 Hold down [FILTER] for 1 second 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
• Hold down [F-4•DEF] for 1 second to select a default
value.
r Push [EXIT•SET] to exit filter set screen.
The type of DSP filter shape for each SSB, SSB data
and CW can be selected independently from soft and
sharp.
q Hold down [FILTER] for 1 second 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 set-
ting (CW only) independently as your default setting in
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 Hold down [FILTER] for 1 second to enter filter set
screen.
w Hold down [F-7•SHAPE] for 1 second 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.
The set filter shape is automatically used only
when the IF filter is set to 600 Hz or wider.
The set filter shape is automatically used only
when the IF filter is set to 600 Hz or wider.
5-15
6 kHz and 3 kHz.
(default),
5