VSG200/VSG60 Application Software Release Notes

Please send bug reports and feedback to support@signalhound.com

- Version 2.0.2 (5/26/2026)
* Bug fix: Fixed idle period calculation for "Digital Mod" waveforms.
* Bug fix: External triggers were not working at high sample rates combined with partial I/Q imbalance corrections.
* Bug fix: Fixed controls in WLAN-AH signal generation. Software was not responding to user inputs.
* Bug fix: Fixed issue with arb sequence editor/sigmf editor that prevents some of the fields from being saved properly. 

- Version 2.0.1 (3/30/2026)
* Added support for generating WLAN 802.11ah waveform, available with software license.
* Added multiple device selection dialog.
* Bug fix: Saving images of plots now works.
* Bug fix: The set axis context menu option on the plots are not implemented. 
* Bug fix: Throw warning when saving waveform if the file can't be opened.
* Bug fix: Automatically add extension to file name when saving a waveform if it hasn't been added.
           This solves an issue where without entering the extension as part of the filename, the file would not be saved.

- Version 2.0.0 (2/2/2026)
* Official support for the VSG200.
* Added ability to export waveforms.
* Added ability to export and import SigMF files.
* Added SigMF Editor Utility
* Added waveform display graphs. Allows visualization of transmit waveforms.
* Added adjustable application wide font size.
  See preferences menu.
* Added SCPI command to read device temperature.
    :SYSTem:TEMPerature?
* Added ability to set the output trigger duration.
  See preferences menu.

- Version 1.0.19 (10/16/2025)
* Added SCPI commands to set the I/Q image imbalance correction algorithm. 
    :OUTPut:CORRection:IMBalance FULL|PARTial
    :OUTPut:CORRection:IMBalance?

- Version 1.0.18 (10/9/2025)
* Added ability to adjust the I/Q image imbalance correction algorithm.
  See preferences menu.

- Version 1.0.17 (3/25/2025)
* Modified some default digital modulation constellation maps to match the Spike software.

- Version 1.0.16 (2/11/2025)
* Converted FSK, PSK, and QAM modulation to gray coded mapping.
* Added support for APSK
* Added Save and load feature for APSK configurations
* Changed Differential Encoding and Offset Q Persistent buttons to checkboxes
* Bug fix: Fixed SCPI parameter for settings QAM1024 in digital modulation mode.

- Version 1.0.15 (4/24/2023)
* Added SCPI commands for configuring WLAN waveforms.
* Not hiding connect progress dialog when in hidden mode.

- Version 1.0.14 (3/12/2023)
* Added SCPI commands for configuring the channel impairment filter taps.
    :OUTPut:IMPairments:CHANnel:LENgth?  
    :OUTPut:IMPairments:CHANnel:DATA  
    :OUTPut:IMPairments:CHANnel:DATA?  
* Bug fix: Setting SCPI port on command line.
* Bug fix: Fixed issue with AWGN BW SCPI command. Should now properly accept frequency values.

- Version 1.0.13 (12/20/2022)
* Bug fix: Device connecting dialog not shown long enough.
* Bug fix: Progress bar not styled correctly.

- Version 1.0.12 (12/8/2022)
* Added dark mode and configurable accent color.
* Added SCPI commands for saving and loading user presets.
    :SYSTem:PRESet[:USER]:SAVE <filename>
    :SYSTem:PRESet[:USER]:LOAD <filename>
* Settings are now configurable with no device connected.
* Connection dialogs are not shown when GUI is hidden.
* SCPI port can be set on command line.
* Bug fix: Prevent application from opening off screen.

- Version 1.0.11 (8/23/2022)
* Bug fix: Corrected style regression.

- Version 1.0.10 (8/17/2022)
* The bit sequence in digital modulation is now interpreted as big endian instead of little endian.
  - This change was made so that the VSG60 software would be in line with the Spike software and
    other test and measurement equipment.
* Added SCPI commands for configuring custom constellations for digital modulation.

- Version 1.0.9 (6/29/2022)
* Added I/Q phase and amplitude imbalance impairments.
* Added phase noise impairments.
  - Create custom phase noise shapes. Applies to all
* Added multi-path channel filter generator. 
  - Quickly and easily generate parameterized and randomized multi-path scenarios.
  - Located in channel filter editor.
* Added user flatness corrections.
* Can now oversample up to 64 for digital modulations, enabling symbol rates down to 195.3125 sym/s.
  - Oversample must be set first before setting the lower sample rates.
* Increased resolution shown on main frequency control.
* Added command line option for hiding the user interface for headless operation. 
  - Also added SCPI command to hide the UI.
  - See the user manual for more information.
* Added ability to disable the SCPI lockout dialog.
* Added file menu option to manage calibration data.
* Added SCPI command for setting custom digital modulation bits.
* Added SCPI commands for loading sequence files.
* Added SCPI commands for setting the half-sine window in digital modulation.
* Added SCPI commands for configuring the idle interval in digital modulation mode.
* Added SCPI commands for enabling impairment channel filters.
* Bug fix: CSV files will no longer fail to load if they have trailing commas or additional values after the first 2 on each line.
* Bug fix: AWGN bandwidth properly saved in presets.
* Bug fix: Fixed SCPI command for setting AWGN length.
* Bug fix: LTE presets not properly save/load bandwidth setting.
* Bug fix: LTE test model 15MHz bandwidth now uses proper sample rate.
* Bug fix: FSK waveforms at low sample rates took a long time to reconfigure, should be improved.

- Version 1.0.8 (11/15/2021)
* Added LTE signal generation.
  Transmit common downlink RMC and test model waveforms.
* Added WLAN 802.11ax signal generation.
  Transmit 20/40MHz standard compliant waveforms.
* Added power level offset control.
  Adjust output power level for external components and losses.
* Added spectrum inversion impairment.
* Added SCPI commands for new power level offset and spectrum inversion controls.

- Version 1.0.7 (7/15/2021)
* External triggers are now emitted when transmitting waveforms in continuous mode.
  See external trigger section in manual for more details.
* New custom OFDM signal generation.
* Added SCPI commands for streaming mode.
* Added SCPI command for loading .wave files in ARB mode.
* Bluetooth LE: 
    Added modulation index control.
    Added Gaussian BT control.
    Added filter length control.
    Can now control oversample amount.
    Displays signal length.
* Bug fix: Step sweep with certain configuration would hang.
* Bug fix: Fixed symbol editor loading. Was improperly interpreting the data as hex even
  when it was only 0's and 1's.

- Version 1.0.6 (10/23/2020)
* Rise/fall time shaping on BLE waveforms.
* Reduced sample rate for unmodulated waveforms. 
    Lowers PC/USB requirements and improves stability for certain PCs.
* Added SCPI commands for the Arb I/Q scale controls.
    [:SOURce]:RADio:ARB:IQ:SCALe:AUTO[:STATe] <bool>
    [:SOURce]:RADio:ARB:IQ:SCALe <double>
    [:SOURce]:RADio:ARB:IQ:SCALe:AVERage[:STATe] <bool>
* Bug Fix: Improved amplitude accuracy on WLAN waveforms. 
* Bug Fix: Changed SCPI commands for loading 16/32-bit binary files from
    :BIN16/:BIN32 to :BINSC/:BINFC. See SCPI manual for full commands and descriptions.

- Version 1.0.5 (8/18/2020)
* Added streaming mode. 
  Using the streaming mode, customers can transmit sequences of arbitrarily large waveform files. 
  Streaming mode does not limit transmit file size.
* Added arb sequence editor
  Create sequences of I/Q data and frequency changes to create complex frequency hopping waveforms
    using a convenient user interface. Sequence files are transmitted in the standard arb mode.
* Can now set an oversample rate of 8 for digital modulations.
* WAV file type is now supported in Arb/Streaming transmit mode.
* Can now use SCPI to load arbitrary waveforms by specifying either a waveform filename or providing the I/Q data directly.
  Supports loading I/Q waveforms over SCPI in ascii format.
  See the SCPI programming manual for more information.
* Added power on preset functionality. 
  Use power on presets to load a specific configuration at software startup.
* Added Half-Sine filter for digital modulations.

- Version 1.0.4 (5/12/2020)
* Added 802.11ac waveform generation.
* All 802.11 waveforms can now be single triggered.

- Version 1.0.3 (4/22/2020)
* Official Linux release.
* Added Bluetooth Low Energy waveform generation.

- Version 1.0.2 (3/4/2020)
* Select I/Q start/stop range in Arb output mode.
* Now able to load Midas Blue waveforms in Arb output mode.
* Added 802.11n 20MHz waveform output mode.
* Max payload size for 802.11a waveforms is now 4095 bytes. 
* Removed 10MS/s symbol rate upper limit in digital modulation output mode.

- Version 1.0.1 (9/16/2019)
* Introduced Power Saving CPU Mode. See Software manual for more information.
* Firmware version is now displayed in the status bar.
* SCPI: Updated AM and FM commands.
* SCPI: Added *OPC and *ESR? commands.

- Version 1.0.0 (8/23/2019)
* Initial Release.

