
RIGOL Chapter 2 Command System
2-72 DS1000Z Programming Guide
[:SOURce[<n>]]:MOD:AM[:DEPTh]
Syntax [:SOURce[<n>]]:MOD:AM[:DEPTh] <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
[<n>] Discrete {1|2}
If omitted, operating on
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
Return
The query returns an integer.
[: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?
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
<frequency> Real 1Hz to 50kHz 1kHz
Explanation Sending the [:SOURce[<n>]]:MOD:TYPe command can set the modulation type.
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.
Sending
[:SOURce[<n>]]:MOD:AM:INTernal:FUNCtion or
[:SOURce[<n>]]:MOD:FM:INTernal:FUNCtion can selelct Sine, Square, Ramp or
Noise as modulating waveform.
Return
The query returns an integer.
:MOD:AM:INTernal:FREQuency 100
Komentarze do niniejszej Instrukcji