Icom IC-7700 - Manual (Page 101)

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IF filter selection
The transceiver has 3 passband width IF filters for
each mode.
For SSB, CW and PSK modes, the passband width
can be set within 50 to 3600 Hz in 50 or 100 Hz steps.
A total of 41 passband widths are available.
For RTTY mode, the passband width can be set within
50 to 2700 Hz in 50 or 100 Hz steps. A total of 32 pass-
band widths are available.
For AM mode, the passband width can be set within
200 Hz to 10 kHz in 200 Hz steps. A total of 50 pass-
band widths are available.
For FM mode, the passband width is fixed and 3 pass-
band widths are available.
The filter selection is automatically memorized in
each mode.
The PBT shift frequencies are automatically memo-
rized in each filter.
D D IF filter selection
q Select the desired mode.
w Push several times to select the IF filter
1, 2 or 3.
• The selected passband width and filter number is dis-
played in the LCD.
D D Filter passband width setting (except FM mode)
q Push and hold for 1 sec. to enter filter set
screen.
w Select any mode except FM.
• Passband widths for FM modes are fixed and cannot be set.
e Push several times to select the desired
IF filter.
r While pushing [F-1•BW], rotate the main dial to set
the desired passband width.
• In SSB, CW and PSK modes, the passband width can
be set within the following range.
50 to 500 Hz 50 Hz steps
600 to 3600 Hz 100 Hz steps
• In RTTY mode, the passband width can be set within the
following range.
50 to 500 Hz 50 Hz steps
600 to 2700 Hz 100 Hz steps
• In AM mode, the passband width can be set within the
following range.
200 Hz to 10 kHz 200 Hz steps
• Push and hold [F-4•DEF] for 1 sec. to select the default
value.
t Repeat steps w to r if desired for other modes.
y Push to exit filter set screen.
The PBT shift frequencies are cleared when the
passband width is changed.
This filter set screen graphically displays the PBT
shift frequencies and CW pitch operations.
EXIT/SET
FILTER
FILTER
FILTER
FILTER
5
FUNCTIONS FOR RECEIVE