E4990A Firmware Revision History

Firmware for Windows 7 and for Windows 10

Revision A.03.02 and later can be installed onto the E4990A with Windows 7 and with Windows 10.

Revision A.04.00 . . . Released March 2021

• Support E4990A with Windows 10 version 1809.
• Support GPT partition / UEFI boot.
• Support BitLocker.
  

Revision A.03.06 … Released March 2020

• Enhance USBTMC communication between E4990A with Windows 10 and Host PC
• Fixed: EULA rejection error
  

Revision A.03.02 . . . Released September 2018

• Support the E4990A with Windows 7 and with Windows 10 version 1607
• Support Flex-ATX CPU
• Support NLT Touch panel
  
• Update WinDriver
• Update EULA
  
• Rebranded USB manufacture ID
• Added a command to select Keysight Technologies or Agilent Technologies while reading manufacturer name in the product information via IDN? 
  
• Deleted “Network Mode” softkey
• Added Y axis zooming with multi touch
  

Bug fixes:

• DCI monitor shows incorrect value, when sweep averaging is turned on.
  
• The AC output /monitor (Vac/Iac) of channel 2 (3 and 4) are incorrect, when ALC, Multiple channel (2,3, or 4) and Point average are used.
• [Diag test] VEE Runtime error when performing Z_1kohm test with open connection.
  

Firmware for Windows 7 and for Windows 10

Revision A.01.02 to A.02.20 can be installed onto the E4990A with Windows 7 only. 

Revision A.02.20 … Released July 2016
Bug fixes:

• The adapter setup in the option E4990A-010 (20 Hz to 10 MHz) is not performed properly.

• The trace data when using the zero frequency sweep span comes to be strange after changing the “DC Output@Hold” from OFF to ON.

Revision A.02.12 … Released October 2015

• The frequency sweep during the data acquisition process for the adapter setup is set to “Up” sweep direction automatically as with the 4294A.

• When the “DC Output@Hold” softkey has been set to “OFF” and the following conditions are used, the trace data may be incorrect.
      - Zero frequency sweep span or a narrow frequency sweep span is used
      - After starting the sweep (a few points have been measured), the sweep is restarted. 

• Supports the Option 001 Enhanced measurement speed up
• Adds the save trace data for multi traces (:MMEM:STOR:TRAC)
• Adds Delay for band change (:SOUR:BAND:DEL)
  
• Improve measurement speed for Hi-Q measurement
• Update splash screen

• S1P data does not include effectiveness of compensation
• Indexing Service is still running as default setting

• Keysight rebranding
    - Company name and its logo
    - Manufacturer name in the product information via IDN? changed to Keysight Technologies from Agilent Technologies
• Firmware update procedure is changed.
• Network setup menu is changed.