Icom IC-756PROIII [66/124] If filter selection

Icom IC-756PROIII [66/124] If filter selection
61
5
FUNCTION FOR RECEIVE
IF lter 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 memo-
rized in each lter.
[FILTER]
IF lter selection
q Select the desired mode.
w For RTTY mode, turn OFF the RTTY lter by push-
ing [RTTY FIL].
e Push [FILTER] several times to select the IF lter
1, 2 or 3.
The selected passband width and lter 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 xed and
cannot be set.
w For RTTY mode, turn OFF the RTTY lter by push-
ing [RTTY FIL].
e Push [FILTER] for 1 sec. to enter lter set mode.
r Push [FILTER] several times to select the desired
IF lter.
t While pushing [(F-1)BW], rotate the tuning dial to
set the desired passband width.
The passband width can be set within the range as
shown right table.
Push [(F-3)DEF] for 1 sec. to select the default value.
y Repeat steps r to t if desired.
u Push [EXIT/SET] to exit the lter set mode screen.
The PBT shift frequencies are cleared when the
passband width is changed.
This lter set mode screen graphically displays the
PBT shift frequencies and CW pitch operations.
*: When the IF lter is selected FIL2 or FIL3 in the FM
mode operation, the Tx IF lter’s passband width is
xed narrow selection (2.5 kHz).
FIL1
Mode Filter Default Range (Steps)
3.0 kHz
1.8 kHz
2.4 kHz
1.2 kHz
250 Hz
7.0 kHz
500 Hz
2.4 kHz
250 Hz
500 Hz
9.0 kHz
3.0 kHz
6.0 kHz
10 kHz
Fixed
Fixed
15 kHz
50–500 Hz (50 Hz)/
600–3.6 kHz (100 Hz)
50–500 Hz (50 Hz)/
600–3.6 kHz (100 Hz)
50–500 Hz (50 Hz)/
600–2.7 kHz (100 Hz)
FIL2
SSB
RTTY
AM
FM*
SSB-D
CW
FIL3
FIL1
FIL2
FIL3
FIL1
FIL2
FIL3
FIL1
FIL2
FIL3
FIL1
FIL2
FIL3
BWBW
DEFDEF
SFTSFT
0
FIL2FIL2
USBUSB
TXTX
VFOVFO
USBUSB
USBUSB
USBUSB
FIL2FIL2
qr.qot.pp
qr.wpt.pp
14.100.0014.100.00
14.100.0014.100.00
1
1
VFOVFO
BWBW
2.4k2.4k
FILTERFILTER
SSBSSB
FIFIL 1
FIFIL 2
FIFIL 3
3.0k3.0k
2.4K2.4K
1.8K1.8K
PBT2PBT2
PBT1PBT1
300300 15001500 27002700
ANTANT
1
COMPCOMP
OFFOFF
WIDEWIDE
METERMETER
PoPo
P.AMPP.AMP
1
AGCAGC
MIDMID
ATTATT
OFFOFF
VOXVOX
OFFOFF
qw:pp
12:00
Passband
width
Selected
IF filter

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Hi
2 года назад