Page 61
FT
DX
9000 C
ONTEST
O
PERATION
M
ANUAL
NAR switch
WIDTH (BW) “NAR” may be
observed on theLCD
NARROW
(
NAR
)
O
NE
-T
OUCH
IF F
ILTER
S
ELECTION
Pressing the NAR switch (#
) provides one-touch, mode-specific selection of a narrow IF DSP filter setting that does
not depend on the setting of the Width control. Pressing the NAR switch once more returns the bandwidth control to the
Width/Shift system. The factory default bandwidths are:
SSB Mode
Pressing the NAR switch selects a bandwidth of 1.8 kHz.
CW/RTTY/PKT Modes
Pressing the NAR switch selects a bandwidth of 300 Hz.
AM Mode
Pressing the NAR switch selects a bandwidth of 6 kHz.
FM Mode (28/50 MHz Bands)
Pressing the NAR switch selects a bandwidth of 9 kHz.
Advice
The bandwidth applied when the NAR switch is
pressed may be adjusted using the Menu. This allows
you to customize a quick-switch “Narrow” bandwidth
matching your operating needs (in examples below,
the default setting is underlined).
SSB
Main (VFO-A)
RX DSP 094 MAIN-SSB-NARROW
200/400/600/850/1100/1350/1500/
1650/1800/1950/2100/2250 Hz
Sub (VFO-B)
RX DSP 106 SUB-SSB-NARROW
200/400/600/850/1100/1350/1500/
1650/1800/1950/2100/2250 Hz
CW
Main (VFO-A)
RX DSP 085 MAIN-CW-NARROW
25/50/100/200/300/400 Hz
Sub (VFO-B)
RX DSP 097 SUB-CW-NARROW
25/50/100/200/300/400 Hz
PSK
Main (VFO-A)
RX DSP 088 MAIN-PSK-NARROW
25/50/100/200/300/400 Hz
Sub (VFO-B)
RX DSP 100 SUB-PSK-NARROW
25/50/100/200/300/400 Hz
RTTY
Main (VFO-A)
RX DSP 91 MAIN-RTTY-NARROW
25/50/100/200/300/400 Hz
Sub (VFO-B)
RX DSP 103 SUB-RTTY-NARROW
25/50/100/200/300/400 Hz
I
NTERFERENCE
R
EJECTION
(S
IGNALS
WITHIN
3
KHZ
)
WIDTH (BW) “NAR” may
be observed on the LCD
Advice
When the NAR button has been pushed so as to
engaged the narrow filter, the Width control will be
disabled, but IF Shift still is operational. For many
applications, you may find that simple adjustment of
the WIDTH control (#
), instead of engaging the
Narrow filter, may be satisfactory for interference re-
duction.
When you press the NAR button in the FM mode,
both the transmit and receive bandwidths are narrowed.
Note
When the NAR button is pressed, the WIDTH con-
trol no longer functions.
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