Icom IC-7410 Instruction Manual - Page 64

IF filter selection

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5 FUNCTIONS FOR RECEIVE ■ IF filter selection The transceiver has 3 passband width IF filters for each mode. The filter selection is automatically memorized in each mode. The PBT shift frequencies are automatically memorized in each filter. D IF filter selection q Select the desired mode. w P ush [FILTER] one or more times to select IF filter 1, 2 or 3. • T he selected passband width and filter number is dis- played on the LCD. D Filter passband width setting (Mode: SSB/CW/RTTY/AM) q H old down [FILTER] for 1 second to display the "FIL" screen (Filter) to set the filter passband width. w Select either the SSB, CW, RTTY or AM mode. • Passband widths for the FM mode is fixed and cannot be set. e P ush [FILTER] one or more times to select IF filter 1, 2 or 3. r P ush [BW](F-1), then rotate [DIAL] to adjust the desired passband width. Then push [BW](F-1) to set it. • While holding down [BW](F-1), rotating [DIAL] also adjusts the passband width. After adjustment, release [BW](F-1) to set it. • Hold down [F-3] for 1 second to reset to the default setting, if desired. t Repeat steps w to r if desired. y P ush [MENU] to save, and exit the "FIL" screen. Mode IF filter Adjustable range (steps) SSB FILTER1 (3.0 kHz) FILTER2 (2.4 kHz) 50 to 500 Hz (50 Hz) 600 to 3600 Hz (100 Hz) FILTER3 (1.8 kHz) SSB-D CW FILTER1 (1.2 kHz) FILTER2 (500 Hz) FILTER3 (250 Hz) 50 to 500 Hz (50 Hz) 600 to 3600 Hz (100 Hz) RTTY FILTER1 (2.4 kHz) FILTER2 (500 Hz) 50 to 500 Hz (50 Hz) 600 to 2700 Hz (100 Hz) FILTER3 (250 Hz) AM AM-D FILTER1 (9.0 kHz) FILTER2 (6.0 kHz) 200 Hz to 10 kHz (200 Hz) FILTER3 (3.0 kHz) FM FM-D FILTER1 (15 kHz) FILTER2 (10 kHz)* Fixed FILTER3 (7.0 kHz)* * When FILTER2 or FILTER3 is selected in the FM mode, the TX IF filter's passband width is fixed to the narrow selection 57 (2.5 kHz). [BW] [F-3] [FILTER] Filter selection [DIAL] M1 AGC B2.4K S 0 TBW SCP The selected filter width is displayed when [FILTER] is pushed. • "FIL" screen display FIL B 2.4K S BW 0 SSB-2 2.4K SHARP Shows the selected filter and passband width. • While adjusting the passband width Blinks Appears FIL B 2.4K S BW 0 SSB-2 2.4K SHARP Reverses Push [BW](F-1), then rotate [DIAL] to adjust the passband width. Then push [BW](F-1), The PBT shift frequencies are cleared when the passband width is changed. This "FIL" screen (Filter) graphically displays the PBT shift frequencies and passband width.

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57
5
FUNCTIONS FOR RECEIVE
■
IF filter selection
The transceiver has 3 passband width IF filters for
each mode.
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] one or more times to select IF filter
1, 2 or 3.
• The selected passband width and filter number is dis
-
played on the LCD.
D
Filter passband width setting
(
Mode: SSB/CW/RTTY/AM)
q
Hold down [FILTER] for 1 second to display the “FIL”
screen (Filter) to set the filter passband width.
w
Select either the SSB, CW, RTTY or AM mode.
• Passband widths for the FM mode is fixed and cannot
be set.
e
Push [FILTER] one or more times to select IF filter
1, 2 or 3.
r
Push [BW](F-1), then rotate [DIAL] to adjust the de-
sired passband width.
Then push
[BW](F-1)
to set it.
• While holding down [BW](F-1), rotating [DIAL] also
adjusts the passband width. After adjustment, release
[BW](F-1) to set it.
• Hold down [F-3] for 1 second to reset to the default set
-
ting, if desired.
t
Repeat steps
w
to
r
if desired.
y
Push [MENU] to save, and exit the “FIL” screen.
Mode
IF filter
Adjustable range (steps)
SSB
FILTER1 (3.0 kHz)
50 to 500 Hz (50 Hz)
600 to 3600 Hz (100 Hz)
FILTER2 (2.4 kHz)
FILTER3 (1.8 kHz)
SSB-D
CW
FILTER1 (1.2 kHz)
50 to 500 Hz (50 Hz)
600 to 3600 Hz (100 Hz)
FILTER2 (500 Hz)
FILTER3 (250 Hz)
RTTY
FILTER1 (2.4 kHz)
50 to 500 Hz (50 Hz)
600 to 2700 Hz (100 Hz)
FILTER2 (500 Hz)
FILTER3 (250 Hz)
AM
AM-D
FILTER1 (9.0 kHz)
200 Hz to 10 kHz (200 Hz)
FILTER2 (6.0 kHz)
FILTER3 (3.0 kHz)
FM
FM-D
FILTER1 (15 kHz)
Fixed
FILTER2 (10 kHz)*
FILTER3 (7.0 kHz)*
* When FILTER2 or FILTER3 is selected in the FM mode, the
TX IF filter’s passband width is fixed to the narrow selection
(2.5 kHz).
Push [BW](F-1), then rotate [DIAL] to adjust the
passband width. Then push [BW](F-1),
BW
SSB-2
2.4K
SHARP
FIL
S
0
B
2.4K
BW
SSB-2
2.4K
SHARP
FIL
S
0
B
2.4K
•
“
FIL
”
screen display
• While adjusting the passband width
Appears
Blinks
Reverses
Shows the selected filter and passband width.
The PBT shift frequencies are cleared when the
passband width is changed.
This “FIL” screen (Filter) graphically displays the
PBT shift frequencies and passband width.
[FILTER]
[BW]
[F-3]
[DIAL]
The selected filter width is displayed
when [FILTER] is pushed.
Filter selection
AGC
TBW
SCP
M1
S
0
B
2.4K