RIGOL DG1000Z Series - Manual (Page 129)

Chapter 2 Command System RIGOL
DG1000Z Programming Guide 2-117
:SOURce[:MOD]:AM Commands
[:SOURce[]][:MOD]:AM[:DEPTh]
Syntax [:SOURce[]][:MOD]:AM[:DEPTh] {|MINimum|MAXimum}
[:SOURce[]][:MOD]:AM[:DEPTh]? [MINimum|MAXimum]
Description Set the AM modulation depth of the specified channel.
Query the AM modulation depth of the specified channel.
Parameter Name Type Range Default
[] Discrete 1|2 1
Real 0% to 120% 100%
Explanation  When [:SOURce[]] or [] is omitted, the system sets the related
parameters of CH1 by default.
 Modulation depth expressed as a percentage indicates the amplitude variation
degree. In 0% modulation depth, the output amplitude is half of the carrier
waveform amplitude. In 100% modulation depth, the output amplitude is equal
to the carrier waveform amplitude. In greater than 100% modulation depth, the
output amplitude of the instrument would not exceed 10Vpp (50Ω load).
 When external modulation source ( [:SOURce[]][:MOD]:AM:SOURce ) is
selected, the output amplitude of the instrument is controlled by the ±5V signal
level of the [CH1/Sync/Ext Mod/Trig/FSK] connector of the corresponding
channel at the rear panel. For example, if the modulation depth is set to 100%,
the output amplitude will be the maximum when the modulating signal is +5V
and the minimum when the modulating signal is -5V.
Return Format The query returns the AM modulation depth in scientific notation with 7 effective
digits, for example, 5.000000E+01 (the AM modulation depth is 50%).
Example :SOUR1:AM 50 /*Set the AM modulation depth of CH1 to 50%*/
:SOUR1:AM? /*Query the AM modulation depth of CH1 and the query returns
5.000000E+01*/
Related
Command
[:SOURce[]][:MOD]:AM:SOURce