Keysight Technologies C Series - Page 252

252 Keysight N9915-90020 User’s Guide
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)FUTURE
IQ Analysis (SA Mode Only)
c. Then to adjust receiver gain:
Press Scale/Amptd then
— To configure automatically: Press Ref Level – adjust as
needed.
or
To adjust manually:
— Press
Preamp ON (default = OFF)
— Press
RF Atten > Manual > 15 dB (default)
4. Setup IQ Streaming protocol, destination host, and port:
To set the destination host, IQ streaming protocol, and samples per
packet, refer to the [:SENS]:IQST subsystem commands in the FieldFox
Programming Help:
https://rfmw.em.keysight.com/wireless/helpfiles/FFProgrammingHelpWe
bHelp/Home.htm
www.keysight.com.
— Destination Host
— Destination Port – (default is 4991)
— Protocol – Choose Vita or Decodio
— Samples per packet
5. Start Streaming: Refer to the FieldFox Programming Help
https://rfmw.em.keysight.com/wireless/helpfiles/FFProgrammingHelpWe
bHelp/Home.htm
on www.keysight.com.
6. When done press Exc
to stop streaming or refer to the
https://rfmw.em.keysight.com/wireless/helpfiles/FFProgrammingHelpWe
bHelp/Home.htm
on www.keysight.com.
Or via the FieldFox front panel, choose:
— Press Meas Setup 4
> IQ Analysis > None
Or simply choose:
— Press Measure 1 > All Meas Off
Typically, the goal is to be able to see the desired signal that you want to
capture as close as possible to the top of the display grid on the screen,
without causing an ADC over range to be displayed. This maximizes the
signal-to-noise ratio.