If Noise Blanker (Nb) Operation - Yaesu FT DX 3000 Operating Manual

The FT 3000 includes an effective IF Noise Blanker, which can significantly reduce noise caused by automotive igni-
DX
tion systems.
1. Press the [ NB ] button briefly to reduce short dura-
tion pulse noise such as from switching transients,
automobile ignitions and power lines. The "NB ON"
will appear in the display to confirm that the Narrow-
NB is operating.
2. Press the [ NB ] button again to reduce longer-dura-
tion man-made pulse noise. The "NBW ON" will
appear in the display to confirm that the Wide-NB is
operating.
3. If desired, you may adjust the Noise Blanker level
via Menu item "033 NB LEVEL" to the point where
the offending noise is best reduced or eliminated.
See box below for details.
4. To end Noise Blanker operation, press the [ NB ] but-
ton once more. The "NB OFF" will appear in the
display, confirming that the Noise Blanker is no lon-
ger in operation.
A :
dvice
The Noise Blanker operation will be memorized inde-
pendently on each VFO stack of VFO-A and VFO-B.
The Noise Blanker level is the same for both VFO-A
and VFO-B.
1. Press the [ MENU ] button to engage the Menu
mode.
2. Rotate the [ CLAR/VFO-B ] knob (or press the
p /q button) to select Menu item "033 NB
LEVEL".
3. Press the [ SELECT ] button
4. Rotate the [ CLAR/VFO-B ] knob (or press the
p/q button) to the point where the offending
noise is best reduced or eliminated.
5. Press the [ SELECT ] button, then press the
[ MENU ] button to lock in the new setting and
exit to normal operation.
FT 3000 O
DX peraTing
i
nTerFerence
iF N b
oiSe lANKeR
Adjusting the Noise Blanker Level
M
anual
( Nb ) o
peRAtioN
[ NB ] Button
[ MENU ] Button
r
ejecTiOn
[ CLAR/VFO-B ] Knob
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