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SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)
IQ Analysis (Requires Option 351 IQ Analyzer and Option 353 IQ Streaming, SA Mode
Only)
IQ Analysis (Requires Option 351 IQ Analyzer and Option 353 IQ
Streaming, SA Mode Only)
IMPORTANT!
- IQ Streaming is used by configuring the desired setup and then starting
- During streaming, the data displayed on the FieldFox is not updated.
- For both Decodio and VITA49, FieldFox encodes all streamed I and IQ
- FieldFox does not support TCP networking.
- Data for both protocols is 2 floating point values per sample (I and Q).
– Except for the 32-bit floating point only option for I and Q data, FieldFox
– While in any IQ Analysis mode, the sample rate to frequency span will
How to Select IQ Analysis
— Press Meas Setup 4
— Then
When IQ Analysis is selected, the following settings are maintained from a
previous measurement: Center Frequency, Span, BW, Sample Rate, Preamp
ON|OFF, and RF Attenuation.
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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 configuration data and starting and stopping
the streaming.
the acquisition/data stream. In order to make measurement changes
(bandwidth, center frequency, etcetera) streaming must be stopped, the
new setup configured, and then streaming restarted.
data as 32-bit IEEE 754 floating point values.
implements VITA 49A a subset of the VITA 49.2 protocol.
stay locked/coupled in a ratio of 1.25:1.
IQ Analysis
then choose from
— Then
General
–
— Then
Streaming
location in a VRT (VITA49) enabled architecture (e.g., VRT packet
class with a defined packet attribute used in one or more places in a a
architecture to create packet streams).
– to emit a sequence of packets from a specific
Keysight N9927-90020 User's Guide
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Troubleshooting
