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21
4
OPERATION
■
Filter selection
The filter selection switches the IF passband width as
shown in the table at right.
The filter selection is for temporal setting.
q
Select the desired mode programmed channel.
(p. 13)
w
Push [SET] for 1 sec. to enter
quick set mode.
e
Push [UP
Y
] or [
Z
DN] several times until “FILTER”
appears on the display.
r
Rotate the channel selector to select desired pass-
band width.
• Either “
” or “
” does not appear while the nor-
mal filter is selected.
• “
” appears when the wide filter is selected.
• “
” appears when the narrow filter is selected.
t
Push [SET] to exit
quick set mode.
• Optional filter variations
When an optional filter is installed, set the optional
filter in
initial set mode. An optional filter is not se-
lected by default.
FL-65 (2.4 kHz)*
1
FL-257 (3.3 kHz)*
2
FL-96 (2.8 kHz)*
2
FL-222 (1.8 kHz)*
2
FL-52A (500 Hz)*
2
FL-53A (250 Hz)*
2
2nd IF signal
2nd IF signal/DET
CFWS450HT (6 kHz)*
3
Through
*
1
AM; Narrow,
SSB/CW/RTTY; Normal
*
3
AM; Normal,
SSB/CW/RTTY; Wide
*
2
OPTION
Name
Band width
Mode
FL-52A
500 Hz/–6dB
CW/RTTY-N
FL-53A
250 Hz/–6dB
CW/RTTY-N
FL-96
2.8 KHz/–6dB
SSB-W
FL-222
1.8 KHz/–6dB
SSB-N
FL-257
3.3 KHz/–6dB
SSB-W
• Filter construction (Rx)
• Filter selection table
no
FL-52A
FL-53A
FL-96
FL-222
FL-257
WIDE
6 kHz*
6 kHz*
6 kHz*
6 kHz*
6 kHz*
6 kHz*
SSB
2.8 kHz
3.3 kHz
NORMAL
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
NARROW
—
500 Hz*
250 Hz*
—
1.8 kHz*
—
WIDE
6 kHz*
6 kHz*
6 kHz*
6 kHz*
6 kHz*
6 kHz*
CW
2.8 kHz
3.3 kHz
NORMAL
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
NARROW
—
500 Hz
250 Hz
—
1.8 kHz
—
WIDE
6 kHz*
6 kHz*
6 kHz*
6 kHz*
6 kHz*
6 kHz*
RTTY
2.8 kHz
3.3 kHz
NORMAL
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
NARROW
—
500 Hz
250 Hz
—
1.8 kHz
—
WIDE
—
—
—
—
—
—
AM
NORMAL
6 kHz
6 kHz
6 kHz
6 kHz
6 kHz
6 kHz
NARROW
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
2.4 kHz
500 Hz*
250 Hz*
2.8 kHz*
1.8 kHz*
3.3 kHz*
*Can be used when the expanded filter selection is turned on in the
initial set mode. (see next page)