Narrow (Nar) One-Touch If Filter Selection - Yaesu FT-2000D Operating Manual

I
NTERFERENCE
NARROW ( NAR ) O
Main band ( VFO-A ) "One-Touch Narrow" Operation
Pressing the [ NAR ] button provides one-touch, mode-spe-
cific selection of a narrow IF DSP filter set-
ting that does not depend on the setting of
the [ WIDTH ] knob. Pressing the [ NAR ] but-
ton once more returns the bandwidth control
to the Width/Shift system. The factory de-
fault bandwidths are:
O M
PERATING ODE
SSB
CW
RTTY/PKT-L/PKT-U
PKT-FM
AM
FM ( 28/50 MHz Bands )
A :
DVICE
When the narrow bandwidth is selected, the "
icon will appear in the display and the bandwidth on
the WIDTH indicator in the display will be reduced.
The bandwidth applied when the [ NAR ] button is
pressed may be adjusted using the Menu. This allows
you to customize a quick-switch "Narrow" bandwidth
matching your operating needs. The default values for
each mode below are underlined.
SSB mode: Menu item "106 rdsP SSB NAR"
200/400/600/850/1100/1350/1500/1650/
1800/1950/2100/2250 Hz
CW mode: Menu item "097 rdsP CW NARR"
25/50/100/200/300/400/500/800/1200/1400/
1700/2000 Hz
PSK mode: Menu item "100 rdsP PSK NAR"
25/50/100/200/300/400 Hz
RTTY mode: Menu item "103 rdsP RTY NAR"
25/50/100/200/300/400 Hz
When the [ NAR ] button has been pushed so as to en-
gage the narrow filter, the [ WIDTH ] knob will be dis-
abled, but IF Shift still is operational. For many appli-
cations, you may find that simple adjustment of the
[ WIDTH ] knob, instead of engaging the Narrow filter,
may be satisfactory for interference reduction.
You may adjust the CW bandwidth using the [ WIDTH ]
knob, even if the narrow filter is engaged. In this case,
available bandwidth selections are 25 Hz ~ 2 kHz.
When you press the [ NAR ] button in the FM mode,
both the transmit and receive bandwidths are narrowed.
N :
OTE
When the [ NAR ] button is pressed, the [ WIDTH ] knob no
longer functions (except the CW mode).
Page 60
R
EJECTION ( S
NE
[ NAR ] S
WITCH
"ON" "OFF"
1.8 kHz
500 Hz
300 Hz
9 kHz 16 kHz
6 kHz 9 kHz
9 kHz 16 kHz
: Depends on the [ WIDTH ] knob
3
IGNALS WITHIN KHZ
-T IF F
OUCH ILTER
Sub band ( VFO-B )
"One-Touch Narrow" Operation
"
1. Press the [ B ] button.
2. Within five seconds of pressing the [ B ] button (while
the imbedded orange LED is blinking), press the [ NAR ]
button to toggle the bandwidth between "WIDE" and
"Narrow." When the narrow bandwidth is selected, the
" " icon will appear in the display.
O M
PERATING ODE
SSB
CW
RTTY/PKT-L/PKT-U
PKT-FM
AM
FM ( 28/50 MHz bands )
FT-2000D O
)
S
ELECTION
[ WIDTH ] Knob
WIDTH Indicator
[ NAR ] Button
[ B ] Button
[ NAR ] Button
[ NAR ] S
WITCH
"ON" "OFF"
1.1 kHz 2.25 kHz
1.2 kHz 2.0 kHz
(300 Hz/500 Hz)
1.2 kHz 1.2 kHz
9 kHz 16 kHz
6 kHz 9 kHz
9 kHz 16 kHz
: Requires the optional CW Narrow Filter
300 Hz: YF-122CN, 500 Hz: YF-122C
M
PERATING ANUAL