Agilent Technologies 33120A, Руководство пользователя

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AM Commands
Use the
APPLy
command or the equivalent
FUNC:SHAP
,
FREQ
,
VOLT
,
and
VOLT:OFFS
commands to configure the carrier waveform. Set the
carrier frequency between 100
m
Hz and 15 MHz (100 kHz for triangle
and ramp). The default is 1 kHz.
AM:DEPTh {<
depth in percent
>|MINimum|MAXimum}
Set the internal modulation depth in percent. Select from 0% to 120%.
The default is 100% .
MIN
= 0%.
MAX
= 120%. [ Stored in volatile memory ]
If you select the external modulating source (
AM:SOUR EXT
), the
modulation depth is controlled by the signal level present on the
AM Modulation terminal (5 volts peak corresponds to 100% modulation).
AM:DEPTh? [MINimum|MAXimum]
Query the modulation depth. Returns a value in percent.
AM:INTernal:FUNCtion {SINusoid|SQUare|TRIangle|RAMP|NOISe|USER}
Select the shape of the modulating waveform. Used only when the
internal modulation source is selected (
AM:SOUR INT
). You can use the
noise function as the modulating waveform. However, you cannot use
the noise function or dc volts as the carrier waveform. The default
is SIN. [ Stored in volatile memory ]
AM:INTernal:FUNCtion?
Query the shape of the internal modulating waveform. Returns “
SIN
”,
“
SQU
”, “
TRI
”, “
RAMP
”, “
NOIS
”, or “
USER
”.
AM:INTernal:FREQuency {<
frequency
>|MINimum|MAXimum}
Set the frequency of the modulating waveform. Used only when the
internal modulation source is selected (
AM:SOUR INT
). Select from
10 mHz to 20 kHz. The default is 100 Hz .
MIN
= 10 mHz.
MAX
= 20 kHz. [ Stored in volatile memory ]
AM:INTernal:FREQuency? [MINimum|MAXimum]
Query the internal modulating frequency. Returns a value in hertz.
4
Chapter 4 Remote Interface Reference
AM Modulation Commands
155