Adjusting The Noise Blanker Level; Adjusting The Noise Attenuation; Reduces Longer Duration Pulse Noise - Yaesu FTDX10 Operation Manual

NB
The FTDX10 includes an effective IF Noise Blank-
er, which can significantly reduce noise caused by
automotive ignition systems.
The NB function can be operated individually for
VFO-A band and VFO-B.
Press the [NB] key to enable the Noise Blanker op-
eration. To disable Noise Blanker operation, press
the [NB] key once more.

• Adjusting the Noise Blanker Level

NB Level
After adjusting to a NB level, the NB level display
disappears after about 2 seconds.
After adjusting the NB level, the operation of the
[FUNC] knob returns to the operation that was used
before adjusting the NB level.
• The NB function may be less effective on
some other types of interference.
• While NB function is activated, the LED
inside this key glows orange.
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Turn the [FUNC] knob to
adjust the NB Level.
Press and hold the [NB] key to
display the NB level.

• Adjusting the Noise Attenuation

1. Press the [FUNC] knob.
2. Select [OPERATION SETTING]→[GENERAL]
→[NB REJECTION].
3. Rotate the [FUNC] knob to set the noise attenu-
ation (10dB / 30dB / 40dB).
4. Press the [FUNC] knob to save the new setting.
5. Touch [BACK] several times to return to normal
operation.

• Reduces longer duration pulse noise

Reduces long duration noise as well as pulse noise.
1. Press the [FUNC] knob.
2. Select [OPERATION SETTING]→[GENERAL]
→ [NB WIDTH] .
3. Rotate the [FUNC] knob to select the value that
will reduce the noise.
4. Press the [FUNC] knob to save the new setting.
5. Touch [BACK] several times to return to normal
operation.
DNR (Digital Noise Reduction)
The Digital Noise Reduction (DNR) system is de-
signed to reduce the level of ambient noise found
on the HF and 50 MHz bands. The (DNR) system
is especially effective during SSB operation. Any
of 15 different noise-reduction algorithms can be
selected; each of these algorithms was created to
deal with a different noise profile. You will want to
experiment with the DNR system to find the best
setting corresponding to the noise currently being
experienced.
The DNR function can be operated individually for
VFO-A band and VFO-B.
Press the [DNR] key to enable the DNR operation.
To disable DNR operation, press the [DNR] key
once more.