IQ Streaming - Example

This example provides a general sequence for an IQ Streaming setup.

1. Select SA mode (INST:SEL "SA")

2. Set IQ Streaming protocol, destination host and port, etcetera. Learn more, refer to "Write the SCPI program" sample below.

3. Optional: Configure frequency center, before entering IQ Streaming feature (SENS:FREQ:CENT).  

NOTE: Center frequency can be set be fore entering IQ streaming, but span (SENS:FREQ:SPAN) and sample rate (IQST:SRAT) must be setup only after entering streaming).

 

     4.   Select the streaming feature (SENS:MEAS:IQAN STReaming).

 

NOTE: IQ Streaming sets up some default frequency Start/Stop/Span settings based on your model FieldFox. But, you can make changes as required after entering the streaming feature.

    
     5.   Adjust other settings as needed:

• Span - SENS:FREQ:SPAN,

• Sample rate SENS:IQST:SRAT, and

• Others as required.

      6.   Start streaming (SENS:IQST:STAR).

 

      7.   When done streaming: Stop streaming (SENS:IQST:STOP).

NOTE:

• You can also send single SCPI commands to the FieldFox using this free Instrument Console program.

• Learn more, refer to the FieldFox User's Guide for your model on www.keysight.com.

 

Requirements

• To connect to the FieldFox and run SCPI programs, you must first connect the FieldFox to the Ethernet or

• Use a crossover cable to connect directly to your PC.

• You will need separate computer to store your IQ streaming files.

NOTE:

Optional: Load the Keysight FieldFox Data Link software to control and view  and control your FieldFox display remotely.

Optional: Load the Keysight IO Libraries Suite software to send remote SCPI commands.

 

Write the SCPI program

The following sequence should configure the FieldFox for streaming at 1GHz, 100kHz span, Decodio protocol on port 5000 sent to 192.168.1.30:

 

IQ Streaming SCPI Setup sample

# Select SA mode INST:SEL "SA" *OPC?   # Set the destination address for UDP packets IQSTream:DHOST "192.168.1.30"   # Set the destination port for UDP packets IQSTream:DPORt 5000   # Set DECodio protocol IQSTream:PROT DEC   # Set streaming mode SENS:MEAS:IQAN str   # Setup center frequency eind span. Note this is set AFTER setting streaming mode. # This sets a 100kHz span, which in auto is 125 kHz sample rate. SENS:FREQ:CENT 1e9;SPAN 100e3   # Start streaming SENS:IQST:START   # Stop streaming SENS:IQST:STOP

 

Last Modified:

12dec2022	In the section "Write the SCPI program" Chg'd: "100MHz" to read "100kHz"
01june2021	New command (A.12.3x)