If Noise Blanke (Nb) Operation - Yaesu FTDX9000MP Operation Manual

The FT 9000MP includes an effective IF Noise Blanker, which can significantly reduce noise caused by automotive
DX
ignition systems.
SUB(VFO-B) [NB] Knob
( VFO-A ) NB O
M B
AIN AND
1. Press the VFO-A [ NB ] switch momentarily to reduce
a short pulse noise such as from switching transients,
automobile ignitions and power lines. The LED im-
bedded in the switch will glow Red to confirm that
the Narrow-NB is operating.
Press and hold the VFO-A [ NB ] switch for two sec-
onds to reduce a longer duration man-made pulse
noise. The LED imbedded in the switch will glow
Yellow to confirm that the Wide-NB is operating.
2. Advance the VFO-A [ NB ] control to the point where
the offending ignition noise is best reduced or elimi-
nated.
To end Noise Blanker operation, press the VFO-A [ NB ]
switch once more. The LED imbedded in the switch will
turn off, confirming that the Noise Blanker is no longer in
operation.
FT 9000MP O
DX PERATION
I I I I I
NTERFERENCE NTERFERENCE NTERFERENCE
NTERFERENCE NTERFERENCE
IF N B
OISE LANKER
MAIN(VFO-A) [NB] Knob
MAIN(VFO-A) [NB] Switch
SUB(VFO-B) [NB] Switch
PERATION
M
ANUAL
R R R R R
EJECTION EJECTION EJECTION
EJECTION EJECTION
( NB ) O
PERATION
( VFO-B ) NB O
S B
UB AND
1. Pressing the Sub (VFO-B) band's [ RX ] switch will
engage Dual Receive operation.
When the imbedded LED grows green, this is your
confirmation that Dual Receive is in operation.
2. Press the VFO-B [ NB ] switch momentarily to reduce
a short pulse noise such as from switching transients,
automobile ignitions and power lines. The LED im-
bedded in the switch will glow Umber to confirm that
the Narrow-NB is operating.
Press and hold the VFO-B [ NB ] switch for two sec-
onds to reduce a longer duration man-made pulse
noise. The LED imbedded in the switch will glow Yel-
low to confirm that the Wide-NB is operating.
3. Advance the VFO-B [ NB ] control to the point where
the offending ignition noise is best reduced or elimi-
nated.
To end Noise Blanker operation, press the VFO-B [ NB ]
switch once more. The LED imbedded in the switch will
turn off, confirming that the Noise Blanker is no longer in
operation.
A A A A A
D D D D D VICE
When the Roofing filter mode is set to "AUTO"
and the Noise Blanker is turned On, the Roofing
Filter bandwidth will automatically be set to 15 kHz.
(S (S (S (S (S 3 3 3 3 3
IGN IGNALS IGN ALS WITHIN ALS ALS WITHIN WITHIN WITHIN KHZ KHZ KHZ
IGN IGN ALS WITHIN KHZ KHZ
VDD BIAS TEMP SWR
PERATION
VICE VICE VICE VICE
Page 79
) ) ) ) )