I Cw Pitch Control; I If Filter Selection - Icom IC-756PRO2 Instruction Manual

I CW pitch control

The received CW audio pitch and monitored CW
audio can be adjusted to suit your preferences (300 to
900 Hz) without changing the operating frequency.
The received CW audio pitch can be adjusted in
25 Hz steps.
I 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.
Passband Selected
width
ANT ANT
BW BW 2.4k 2.4k SFT SFT 0
1
TX T X VFO VFO U S B U S B
qr.qot.pp
METER METER
Po Po
14.100.00 14.100.00
1
P.AMP P.AMP
1
VFO VFO USB USB
qr.wpt.pp
ATT ATT
OFF OFF
1 14.100.00 14.100.00
IF filter
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FIL2 FIL2
USB USB
FIL2 FIL2
USB USB
RECEIVE AND TRANSMIT
The filter set mode screen graphically displays the
CW pitch operations. (See below.)
• 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.
Passband Selected
width IF filter
ANT ANT
2.4k 2.4k 0
BW BW SFT SFT
1
T X TX VFO VFO U S B U S B
qr.qot.pp
METER METER
Po
1 14.100.00 14.100.00
P.AMP P.AMP
1 VFO VFO USB USB
qr.wpt.pp
ATT ATT
OFF OFF
1 14.100.00 14.100.00
AGC AGC
MID MID
VOX VOX
OFF OFF
3 0 0 3 0 0 1 5 0 0 1 5 0 0
COMP COMP
OFF OFF
WIDE WIDE
BW BW DEF DEF
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.
5
qw:pp
FIL2 FIL2
USB USB
FIL2 FIL2
USB USB
FILTER FILTER
SSB SSB
FIL 1 FI 3 . 0 k 3 . 0 k
2 7 0 0 2 7 0 0
FIL 2 FI 2 . 4 K 2 . 4 K
PBT1 PBT1
FI FIL 3 1 . 8 K 1 . 8 K
PBT2 PBT2
29