Yaesu VR-5000, Руководство по эксплуатации

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VR-5000 O
PERATING
M
ANUAL
44
DSP Operation
Digital Signal Processing is a highly-effective fitering technology which can dramatically
improve reception. The optional DSP Unit (
DSP-1
) brings to the
VR-5000
the following
four features:
Ì
DSP NOTCH Filter
Ì
DSP Bandpass Filter
Ì
DSP CW Peaking Filter
Ì
DSP Noise Reducer
Ì
CW-PITCH
DSP NOTCH F
ILTER
Unwanted beat notes within the receiver’s IF filter passband can be effectively removed by
utilization of the DSP NOTCH Filter.
To activate the DSP NOTCH Filter:
1. Press the [
F
] key momentarily, then press the [
DSP
] key.
2. Rotate the DIAL knob to set the cursor to the “
NOTCH
” menu option, then press the [ •
(
BEEP
) ] key to change its setting to “
ON .”
3. Rotate the DIAL knob to set the cursor to the “
END
” menu option, then press the
[
ENT
(
SET
) ] key.
4. Confirm that the cursor is on the “
UPDATE
” menu option, then press the [ ENT
(
SET
)
]
key to exit the setup process.
5. Press the [ DSP
] key to activate the DSP system.
To disable the DSP NOTCH Filter, set the “
NOTCH
” menu item to “
OFF
” in step 2.
DSP B
ANDPASS
F
ILTER
In the SSB, AM, and FM modes, the DSP Bandpass Filter may be used to enhance the
receiver’s selectivity. Interference from adjacent-frequency stations, high-pitched noise,
and low-frequency “rumble” components are among the types of problems which may be
minimized using the DSP Bandpass Filter.
LOW-CUT Normal
Peak
HI GH-CUT