Modulated
Waveforms
Control
Commands
Keyword
[:SOURce]
:MODulation
:TYPE
:CARRier
[:FREQuency]
:LOAD
:DEMO
:PSK
:TYPE
:DATA
:MARKer
:BAUD
:CARRier
:STATe
:USER
:DATA
:QAM
:TYPE
:CARRier
:STATe
:BAUD
:DATA
:MARKer
:USER
:DATA
5-44
This group is used to control the modulated waveforms and their
respective parameters. Note that the modulation can be turned off
to create continuous carrier waveform (CW). The following
modulation schemes can be selected and controlled: PSK and
QAM. The modulation commands are summarized in Table 5-6.
Factory defaults after *RST are shown in the Default column.
Parameter range and low and high limits are listed, where
applicable.
Table
5 -6, Modulated Waveforms Commands
Parameter Form
OFF | PSK | QAM
10 to 50e6
BPSK | QPSK | OQPSK | DQPSK | 8PSK | 16PSK | USER
<data_array>
1 to 4000
1 to 10e6
OFF | ON | 0 | 1
<data_array>
16QAM | 64QAM | 256QAM | USER
OFF | ON | 0 | 1
1 to 10e6
<data_array>
1 to 4000
<data_array>
Default
OFF
1e6
BPSK
1
10e3
1
16QAM
1
10e3
1