Справочник Пользователя для Rigol MSO1074Z-S 4-channel oscilloscope, Digital Storage oscilloscope, MSO1074Z-S
Модели
MSO1074Z-S
RIGOL
2-72
DS1000Z Programming Guide
[:SOURce[<n>]]:MOD:AM[:DEPTh]
Syntax
[:SOURce[<n>]]:MOD:AM[:DEPTh] <depth>
[:SOURce[<n>]]:MOD:AM[:DEPTh]?
[:SOURce[<n>]]:MOD:AM[:DEPTh]?
Description
Set or query the AM modulation depth (indicates the amplitude variation degree and is
expressed as a percentage) of the specified source channel. The default unit is %.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
{1|2}
If omitted, operating on
source 1 by default
<depth>
Real
0 to 120
100
Explanation
In 0% modulation, the output amplitude is half of the carrier waveform amplitude.
In 100% modulation, the output amplitude is equal to carrier waveform amplitude.
In >100% modulation, the envelop distortion will be occurred and the output amplitude
of the instrument would not exceed 5Vpp (50Ω load). In real electrical circuit, it should be
avoided.
Return
Format
The query returns an integer.
Example
:MOD:AM 80
[:SOURce[<n>]]:MOD:AM:INTernal:FREQuency
[:SOURce[<n>]]:MOD:FM:INTernal:FREQuency
Syntax
[:SOURce[<n>]]:MOD:AM:INTernal:FREQuency <frequency>
[:SOURce[<n>]]:MOD:AM:INTernal:FREQuency?
[:SOURce[<n>]]:MOD:FM:INTernal:FREQuency <frequency>
[:SOURce[<n>]]:MOD:FM:INTernal:FREQuency?
[:SOURce[<n>]]:MOD:AM:INTernal:FREQuency?
[:SOURce[<n>]]:MOD:FM:INTernal:FREQuency <frequency>
[:SOURce[<n>]]:MOD:FM:INTernal:FREQuency?
Description
Set or query the modulating waveform frequency of AM or FM of the specified source
channel. The default unit is Hz.
Parameter
Name
Type
Range
Default
[<n>]
Discrete {1|2}
If omitted, operating on
source 1 by default
<frequency>
Real
1Hz to 50kHz
1kHz
Explanation
AM: amplitude modulation. The amplitude of the carrier waveform varies with the
instantaneous voltage of the modulating waveform.
FM: frequency modulation. The frequency of the carrier waveform varies with the
instantaneous voltage of the modulating waveform.
Noise as modulating waveform.
Return
Format
The query returns an integer.
Example
:MOD:AM:INTernal:FREQuency 100