Yaesu VR-5000, Руководство по эксплуатации

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VR-5000 O
PERATING
M
ANUAL
46
DSP N
OISE
R
EDUCTION
The DSP Noise Reduction feature can be effective against a wide variety of noise types; it
is not limited to the “impulse” type (such as ignition noise).
To activate the DSP Noise Reduction system:
1. It is helpful to set up the receiver on a frequency with a station present, so you can hear
the effects of any changes you make. Press the [ DSP
] key to engage the DSP.
2. Press the [
F
] key momentarily, then press the [
DSP
] key.
3. Rotate the DIAL knob to set the cursor to the “
NR
” menu option, then press the [ •
(
BEEP
) ] key.
4. Press the [ ENT
(
SET
) ] key, then rotate the
DIAL knob to find the point where best
signal-to-noise ratio is obtained under the current noise conditions.
5. Press the [ ENT
(
SET
) ] key, then rotate the
DIAL knob to set the cursor to the “
END
”
menu option, then press the [
ENT
(
SET
) ] key.
6. Confirm that the cursor is on the “
UPDATE
” menu option, then press the [ ENT
(
SET
)
]
key to exit the setup process.
To disable the DSP Noise Reduction feature, set the “ NR ” menu option to “ OFF ” in step 3.
CW-PITCH
In the CW mode, you can change the CW Pitch as desired. This feature adjusts the center
frequency of the DSP CW Peaking Filter, to match the CW tone you prefer to listen to.
To change the CW Pitch:
1. Press the [ F
] key momentarily, then press the [
DSP
] key.
2. Rotate the
DIAL
knob to set the cursor to the “ CW-PITCH ” menu option, then press the
[
•
(
BEEP
)
] key.
3. Press the [ ENT
(
SET
) ] key, then rotate the
DIAL knob to choose the desired CW Pitch.
The available values are 400 Hz ~ 1100 Hz (in 50 Hz steps).
4. Press the [ ENT
(
SET
) ] key, then rotate the
DIAL knob to set the cursor to the “ END ”
menu option, then press the [ ENT
(
SET
)
] key.
5. Confirm that the cursor is on the “ UPDATE ” menu option, then press the [
ENT
(
SET
) ]
key to exit the setup process.
Note
: If you set the “
CW-PITCH
” menu item to “
OFF
” in step 2, it will automatically
disable the CW Bandpass Filter. This is a “short-cut” to speed your progress through
the Menu system.
DSP Operation