User's Manual

61
5
FUNCTION FOR RECEIVE
■ IF filter selection
The transceiver has 3 passband width IF filters for
each mode.
For SSB and CW 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 passband widths are available.
For AM and FM modes, the passband width is fixed
and 3 passband widths are available.
The filter selection is automatically memorized in
each mode.
The PBT shift frequencies are automatically mem-
orized in each filter.
• IF filter selection
q Select the desired mode.
w For RTTY mode, turn OFF the RTTY filter by push-
ing [RTTY FIL].
e 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.
•Filter passband width setting
(SSB, CW and RTTY mode only)
q Select SSB, CW or RTTY mode.
•Passband widths for AM and FM modes are fixed and
cannot be set.
w For RTTY mode, turn OFF the RTTY filter by push-
ing [RTTY FIL].
e Push [FILTER] for 1 sec. to enter filter set mode.
r Push [FILTER] several times to select the desired
IF filter.
t While pushing [(F-1)BW], rotate the tuning dial to
set the desired passband width.
•In SSB and CW 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
•Push [(F-3)DEF] to select the default value.
y Repeat steps r to t if desired.
u Push [EXIT/SET] to exit the filter set mode screen.
The PBT shift frequencies are cleared when the
passband width is changed.
This filter set mode screen graphically displays the
PBT shift frequencies and CW pitch operations.
BW
BW
DEF
DEF
SFT
SFT
0
FIL2
FIL2
USB
USB
qw:pp
TX
TX
VFO
VFO
USB
USB
USB
USB
USB
USB
FIL2
FIL2
q r .q o t .p p
q r .w p t .p p
14.100.00
14.100.00
14.100.00
14.100.00
1
1
VFO
VFO
BW
BW
2.4k
2.4k
FILTER
FILTER
SSB
SSB
FI
FI
L 1
FI
FI
L 2
FI
FI
L 3
3.0k
3.0k
2.4K
2.4K
1.8K
1.8K
PBT2
PBT2
PBT1
PBT1
300
300
1500
1500
2700
2700
ANT
ANT
1
COMP
COMP
OFF
OFF
WIDE
WIDE
METER
METER
Po
P.AMP
P.AMP
1
AGC
AGC
MID
MID
ATT
ATT
OFF
OFF
VOX
VOX
OFF
OFF
Passband
width
Selected
IF filter
SFT
SFT
0
FIL2
FIL2
USB
USB
qw:pp
TX
TX
VFO
VFO
USB
USB
USB
USB
USB
USB
FIL2
FIL2
q r .q o t .p p
q r .w p t .p p
14.100.00
14.100.00
14.100.00
14.100.00
1
1
VFO
VFO
BW
BW
2.4k
2.4k
ANT
ANT
1
METER
METER
Po
Po
P.AMP
P.AMP
1
ATT
ATT
OFF
OFF
Passband
width
Selected
IF filter