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SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)FUTURE
IQ Analysis (SA Mode Only)
How to Setup IQ Analysis General
General setup for IQ Analysis:
1. Press Meas Setup 4 >
2. Press
3. Press
4. Press
5. Press Freq/Dist >
6. Press
How to Setup IQ Analysis Streaming (Requires Option 353 IQ
Streaming, SA Mode Only)
The feature provides continuous streaming of IQ data up to 1.25 MSamples/sec
over the Ethernet port in either VITA49A or Decodio formats.
If locked to GPS, will populate the timestamp applied to streamed data
packets. If not locked to GPS, the system clock time is used to stamp the
streamed data packets. Refer to
"Frequency Reference" on page
General setup for IQ Streaming:
1. Press Meas Setup 4 >
2. Then
3. Configure Center Frequency, Span, Preamp, and RF Attenuation
Keysight N9915-90020 User's Guide
IQE Sample Rate
Average Count
Measurement Setup Settings" on page
Average Type
> Auto (default). Learn more refer to
Measurement Setup Settings" on page
Center
Freq Span
> 1 MHz (default).
This feature's intended use is that the Streamed data will be sent to
another computer. That computer or another one will act as a SCPI
controller and is required for actually controlling the streaming, in
particular setting up network data and starting and stopping the
streaming.
IQE SampRate
Setting the IQE sample rate to Manual, forces the Span to be:
Span = 0.8 * Sample rate.
a. Press Freq/Dist >
b. Press
Freq Span
This forces the Span to be:
Span = 1.25 * Span.
IQ Analysis
General
>
> Auto (default).
> 10 (default). Learn more refer to
308.
308.
> 1 GHz
Chapter 31, "System Settings"
788.
IQ Analysis
Streaming
>
Manual
> 1.25 MHz (default when set to Auto).
>
Center
> 1 GHz 1 GHz
> 1 MHz (default).
"Adjusting the
"Adjusting the
and to
251
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