Narrow (Nar) One-Touch If Filter Selection - Yaesu FT-2000 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 "104 rdsP SSB NAR
200/400/600/850/1100/1350/1500/1650/
1800/1950/2100/2250 Hz
CW mode: Menu item "095 rdsP CW NARR
25/50/100/200/300/400/500/800/1200/1400/
1700/2000 Hz
PSK mode: Menu item "098 rdsP PSK NAR
25/50/100/200/300/400 Hz
RTTY mode: Menu item "101 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
104 rdsP SSB NAR 104 rdsP SSB NAR" 104 rdsP SSB NAR 104 rdsP SSB NAR
095 rdsP CW NARR 095 rdsP CW NARR" 095 rdsP CW NARR
095 rdsP CW NARR
098 rdsP PSK NAR 098 rdsP PSK NAR
098 rdsP PSK NAR 098 rdsP PSK NAR"
101 rdsP RTY NAR 101 rdsP RTY NAR
101 rdsP RTY NAR" 101 rdsP RTY NAR
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-2000 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