LibreVNA/CHANGELOG.md

Changelog

v1.2.2

Mostly bugfixes along with the occasional new feature.

• Additional graph features:

  • Group delay option
  • (Optionally) show units on all axes

• General bugfixes, among others:

  • Fixed valgrind issues (mostly uninitialized variables)
  • Prevent overflow in SCPI commands

v1.2.1

Mostly bugfixes along with the occasional new feature.

• Calibration:
  • File format changed to json
  • Multiple measurements can be taken/deleted at the same time
  • Calibration kit allows separate male/female standards
  • configurable Z0 for short/open
• SCPI commands:
  • load/save calibration files
  • export to touchstone file format directly
  • additional command for reading trace data
  • fix typo in documentation
• UI improvements:
  • Additional Y-axis options: Reactance/Real/Imaginary
  • Graphs look a bit nicer
  • Configurable line width for graphs
  • finally added an application logo
• General bugfixes, among others:
  • PLL divider calculation fixed for certain frequencies
  • Improved USB buffer handling
  • Better error handling when opening invalid files
  • Various bugs when adding/deleting markers
  • graph autoscaling with invisible traces

v1.2.0

• Additional SCPI commands
• Marker improvements:
  • create groups to move markers together
  • calculate additional parameters (R/L/C,...)
• Fullscreen mode of single graph by double-clicking
• Error flags for ADC overload and output amplitude unlevel in VNA mode
• New feature: power sweeps (sweep the stimulus power instead of the frequency)
• General bugfixes

Significant changes have been made to the embedded firmware as well as the FPGA configuration to support power sweeps. A firmware update on the LibreVNA is mandatory to use this new software version.

v1.1.2

• Software:
  • Fix parsing of calibration kit settings

No changes have been made to the embedded software, updating the firmware on the LibreVNA is not required.