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# Changelog
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## v1.4.0
- New features:
- Configurable constant lines for XY-plots
- Limit testing on XY-plots
- Single sweep functionality
- Zero span support for VNA and SA
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- Math operations across traces
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- Bugfixes:
- Stop duplicate GUI elements from appearing when loading a setup file
- Prevent wrong frequency output when sweep starts at DC
- Improve automatic source/receiver calibration
- Fix signal ID issue which caused valid signals to disappear at low RBWs
- Changing trace color triggers replot of graphs
- Remove output spikes in generator mode, caused by continuously reconfiguring the PLL
- Fix MCU temperature calculation
2022-07-25 03:22:41 +08:00
- Small improvements:
- Split plots without closing the plot first
- Configurable marker sort order
- Refactoring
2022-04-20 21:43:37 +08:00
## v1.3.0
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Some new software features along with a few bug fixes.
- New features:
- Allow multiple VNA/Signal generator/Spectrum analyzer tabs
- Software work-around to allow up to 65535 points per sweep
- Impedance renormalizetion (as de-embedding option)
- Waterfall plot
- CSV export options extended
- logarithmic sweeps (logarithmic frequency steps)
- Graph display improvements:
- (Optionally) show units on all axes
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- Configurable font size
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- New Y axis options: dBuV, linear magnitude, unwrapped phase, group delay
- Zoom feature for smith chart
- User-selectable IF frequencies
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- General bugfixes, among others:
- Fixed valgrind issues (mostly uninitialized variables)
- Prevent overflow in SCPI commands
2021-12-06 02:53:14 +08:00
## 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
2021-08-22 22:38:53 +08:00
## 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.
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## 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.