Loading ...
Loading ...
Loading ...
SDG7000A User Manual
60 / 133 WWW.SIGLENT.COM
Trigger Source
Trigger sources include Internal, External and Manual trigger。
Table 9-15 Description of I/Q waveform trigger source
Trigger source
Description
Internal
When the trigger source is internal, the IQ waveform is continuously
output.
External
When the trigger source is external, the signal generator receives the
trigger input from the rear panel and outputs a cycle of IQ waveform
every time it receives a trigger edge of CMOS pulse.
Manual
When the trigger source is manual, a Trigger Button will appear on the
parameter page and each time the button is pressed, the IQ signal will
be output for one cycle.
Data Source
Click the setting icon in the "Data Source" parameter setting box to enter the data source
selection interface. You can choose to load the Built-In waveform or the saved waveform
Table 9-16 I/Q waveform data source description
Data Source
Description
Built-In
The built-in waveforms are a series of preset waveforms in the signal
generator, including a variety of ASK, PSK, QAM, and other modulation
waveforms. The selection method of Built-In waveform is the same as
that of Arb.
From File
A saved waveform is the waveform file saved in the local directory or
external USB flash disk by the user. The selection method of the saved
waveform is the same as that of Arb.
9.6.1 Working Mode
The I/Q signal of the SDG7000A can be output in two modes. When the central frequency (carrier)
= 0, the working mode is baseband I/Q. In this mode, CH1 is I-channel and CH2 is Q-channel.
When the central frequency≠ 0, the working mode is IF (Intermediate Frequency). In this mode,
the I and Q data will be sent to the internal quadrature modulator and modulated to the carrier
frequency before output. The output of the quadrature modulator is led out from CH1 after
broadband compensation.
Loading ...
Loading ...
Loading ...