User's Manual Part 3

5-13
■ 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
IF filter selection
q Select the desired mode.
w Push [FILTER] 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
Filter passband width setting
(except FM mode)
q Push [FILTER] 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 [FILTER] 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 [F-4•DEF] for 1 sec. to select the default value.
t Repeat steps w to r if desired.
y Push [EXIT/SET] 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.
[FILTER] for main [FILTER] for sub
5
FUNCTIONS FOR RECEIVE