Keysight Generic VNA Setup Instruction & Driver Details

Keysight PNA-L Series "A" :

Model Supported :N5230A, N5230C, N5231A, N5232A, N5234A, N5235A, N5239A.



Measurement Mode Supported :

Firmware supported :

A.09.90.21 (WinXP) or A.10.65.08 (Win7) (Download Keysigth VNA Firmware)

Keysight PNA-L Series "B" :

Model Supported : N5231B, N5232B, N5234B, N5235B, N5239B.



Measurement Mode Supported :

Firmware supported :

A.17.35.10 (Download Keysigth VNA Firmware).

Keysight PNA-C Series :

Model Supported :E8361A, E8362B, E8363B, E8364B, E8361C, E8362C, E8363C, E8364C



Measurement Mode Supported :

Firmware supported :

A.09.42.23 (Download Keysigth VNA Firmware ).

Keysight PNA-X Series “A”:

Model Supported : N5241A, N5242A, N5244A, N5245A, N5247A, N5249A



Measurement Mode Supported :

Firmware supported :

A.09.90.21 (WinXP) or A.10.65.08 (Win7) (Download Keysigth VNA Firmware)

Keysight PNA-X Series “B”:

Model Supported : N5221B, N522B, N5224B, N5225B, N5227B, N5231B, N5232B, N5234B, N5235B, N5239B, N5241B, N5242B, N5244B, N5245B, N5247B, N5249B



Measurement Mode Supported :

Firmware supported :

A.17.35.10 (Download Keysigth VNA Firmware).

Keysight PNA Series “A”:

Model Supported : N5221A, N5222A, N5224A, N5225A, N5227A



Measurement Mode Supported :

Firmware supported :

A.09.90.21 (WinXP) or A.10.65.08 (Win7) (Download Keysigth VNA Firmware)

Keysight PNA Series “B”:

Model Supported : N5221B, N5222B, N5224B, N5225B, N5227B



Measurement Mode Supported :

Firmware supported :

A.17.35.10 (Download Keysigth VNA Firmware).

Keysight ENA compatible with PNA Firmwares:

Model Supported : E5080A



Measurement Mode Supported :

Firmware supported :

A.12.60.03 (Download Keysigth VNA Firmware).

Installing VISA layer

IQSTAR instrument scanner can communicate with the instruments trough the software VISA layer. On the remote computer, several visa dll's can be installed, depending on the GPIB controller (Ni or Keysight) installed.

For example, “Agilent IO Library Suites” from Agilent or/and “Measurement and Automation” from National Instruments can be installed.

Download NI-VISA and/or Download Keysigth IO Libraries Suite. Once the standalone installer has been downloaded, launch the executable and follow the onscreen prompts to complete the installation.

• If “Measurement and Automation” from National Instruments is only installed on the computer, the NI “visa64.dll” is linked to the primary VISA interface. This dll will be used when plugging a NI GPIB-USB key or a NI GPIB card.

• If “Agilent IO Library Suites” from Agilent is only installed on the computer, both Agilent “visa64.dll” and “agvisa64.dll” will address the same software in order to communicate with the instruments. This dll will be used when plugging an Agilent USB GPIB key or Agilent GPIB card.

• If “Agilent IO Library Suites” is installed on top of the “Measurement and Automation” in order to enable both Agilent and NI USB-GPIB keys, the Agilent software installer will ask if the original NI “visa64.dll” has to be replaced by the Agilent “visa64.dll”.
  • If the Agilent “visa64.dll” erases and replaces the NI “visa64.dll”, both “visa64.dll” and “agvisa64.dll” will address the same software in order to communicate with the instruments. In this configuration, NI key or NI card cannot be used anymore.
  • If the Agilent “visa64.dll” does not erase and does not replace the NI “visa64.dll”, the “agvisa64.dll” will be used to drive the Agilent card or Agilent key, while the “visa64.dll” will be used to drive the NI card or NI key.

Keysight VNA Firmware Update & IQSTAR Setup

Keysigth VNA requires compatible firmware that can be downloaded and installed on the VNA, allowing to be up to date with IQSTAR driver.

Following the Keysigth VNA models and VNA exploitation system (Windows 7 or XP) firmware have to be downloaded : Download Keysigth VNA Firmware .

Once the standalone installer has been downloaded, launch the executable and follow the onscreen prompts to complete the installation.
  • Launch 'Network Analyzer' software on the Keysight VNA.
  • Launch IQSTAR and select "Keysight Generic VNA" driver in Vector Network Analyzer instrument settings.
  • Set the communication address. Note the icon can be use to open the Instrument Scanner.

    Keysight VNA is now ready to use. From VNA instrument settings, press to test connection with VNA.

"Keysight Generic VNA" driver options

To set the specific driver options, click on icon in options from instrument section.



Keysight Generic VNA driver options are the following:


  • Force Identification As : In order to evaluate the instrument model and options, IQSTAR queries *IDN? during bench initialization , then IQSTAR will adapt the instrument driver in function of the instrument model. This option allows to force a model version in order to adapt instrument driver behavior.
  • Allow AutoRange Attenuation : Allow to use the internal source step attenuator in order to increase the internal RF source power range. Using this option, the internal source power range will be extended from 40 dB (-30dBm to 10dBm) to 100 dB (-90dBm to 10dBm). If not checked, a specific attenuation value can be set (default value set to 0dB).


    Note: This capability is an hardware option (e.g : Extended power range option 217 or 417 for PNA-X series B).
    Note: This option can lead to measurement error when the internal couplers are used. If the internal couplers are use and "Allow Autorange Attenuation" option is enabled, "Set Mathematical offset for Source attenuation" has to be also enabled.
  • Enable Testset : Allow to use Z5623A H83/H87 (Dual Direction Pulse Test Set to use with the E8364B)


    Use 'Testset URL' tab to fills the comunication address.
  • Enable External Trigger input in CW mode : Allow to triggered VNA measurement from external harware. Define trigger delay value and appropriated IFBW to allow pulse measurement in WBF detection without any option. To learn more see Getting Started : "Overview on the Pulsed Measurement Techniques"
  • Note: External trigger signal has to be connect on rear panel "Meas TRIG IN" BNC connector.


  • Force Port 1 Reference mixer switch to External : Allow to force the port 1 external coupler in external in S-Parameters.



  • Force Pulse Mode for PNA-X XP version :

  • Set Mathematical offset for Source attenuation : Allow to enable internal calibration factor in order to compensate source attenuator modification. In PNA/PNA-X, the source attenuator is located between incident coupler (R1/2/R3/R4) and reflected coupler (A/B/C/D).



    Working with internal coupler, source attenuator value change during a large power sweep, therefore the calibration become inaccurate and the resul are wrong. Using this option, the VNA will automatically correct the RAW data value in function of source attenuator position.

  • Force Port 1 Bypass switch to rear panel (Combiner) Can be use to connect an external booster amplifer on VNA rear panel.



  • Force 2nd Source Bypass switch to rear panel (Combiner)Can be use to connect an external booster amplifer on VNA rear panel.



  • Receiver A/B/C/D attenuatior:Can be use to force the relevant attenuator to a fix value.
  • Use a Custom External Modulator:If set, pulsed measurements will be allowed with a VNA having no pulse capabilities (Pulsed options, pulsed modulators). For more information on how to use an external modulator, see Getting Started : "Overview on the Pulsed Measurement Techniques".
  • Use Gaussian filter instead of standard filter:Sets the IFBW filter shape.
  • Force VNA's internal RF Source to generate only one tone: If the VNA supports the 2-Tones generation, IQSTAR will try to use it, even if the setup has some other RF Sources. If for any reason, it is needed to generate one tone with the VNA and the other one with the external RF Sources, this option needs to be checked.
  • Use Low Frequency Extension Unit:If set, allows the VNA to set frequencies down to 900Hz with the respective LFE Unit.
Spectrum Analyzer Options (need options 090 + 90x):
  • Detector Type: Sets the detector type of all spectrum measurements traces.
  • Disable Port 1 auto attenuation when source 1 is unused: When using the VNA advanced capabilities, such as some RF generation routed to the VNA internal combiner, it may be necessary to have the lowest losses between the rear panel combiner thru input and the front port 1 connector. This option prevents the control of the source attenuator on this RF path when the source is off to obtain the best possible dynamic. This option is useful when doing NPR measurements, where a modulated source is injecting a modulated RF signal into the VNA real combiner thru connector, as the source 1 of the VNA can also be used in other types of measurements.