Nr/Dnr (Digital Noise Reduction) Operation - Yaesu FT DX 9000 CONTEST Operation Manual

NR/DNR ( D
If the optional Dual Receive Unit (RXU-9000) is installed, Digital Noise Reduction operation is available on both the
VFO-A and VFO-B. Operation is identical on either VFO.
As a reminder, there is no difference in the fundamental performance of the two VFOs. Please see page 65 for details.
VFO-A B DNR O
AND PERATION
1. Press the VFO-A [ NR ] switch. The LED imbedded in
the switch will glow Red, confirming that the DNR
system is engaged.
2. Rotate the VFO-A [ NR ] knob to select the setting that
most effectively reduces the noise level.
To disable the DNR system, press the VFO-A [ NR ] switch
once more. The imbedded LED will turn off, confirming
that the DNR system is not active.
The VFO-B frequency display will show the current noise reduction parameter for 3 seconds whenever the [ NR ]
knob (or [ DNR ] knob) is turned.
You may disable this feature (displaying the current noise reduction parameter) via Menu item "DISPLAY 022
LEVEL INDICATOR." See page 133 for details.
FT 9000 C O
DX ONTEST
N
IGITAL OISE
( VFO-B ) [ DNR ] Knob
( VFO-B ) [ DNR ] Swicth
A
M
PERATION ANUAL
D D D D D R R R R R
U U U U U AL AL AL AL AL ECEIVE ECEIVE ECEIVE
ECEIVE ECEIVE
) O
R
EDUCTION PERATION
VFO-B B DNR O
AND
1. Pressing the [ SUB RX ] switch will engage Dual Re-
ceive operation.
When the imbedded LED glows green, this is your
confirmation that Dual Receive is in operation.
2. Press the VFO-B [ DNR ] switch. The LED imbedded
in the switch will glow Umber, confirming that the
DNR system is engaged.
3. Rotate the VFO-B [ DNR ] knob to select the setting
that most effectively reduces the noise level.
To disable the DNR system, press the VFO-B [ DNR ]
switch once more. The imbedded LED will turn off, con-
firming that the DNR system is not active.
DVICE
( RXU-9000 RXU-9000 )
U U U U U RXU-9000 RXU-9000
RXU-9000
NIT NIT NIT NIT NIT
( VFO-A ) [ NR ] Knob
VDD BIAS TEMP SWR
[ SUB RX ] Switch
( VFO-A ) [ NR ] Swicth
PERATION
Page 167