1. This firmware must be upgraded from V1.2.8.1 or later, V2.X.X.X versions are not supported for upgrading this firmware. If your SSA3000X has an earlier version, please update to V1.2.8.1 first and then proceed to update to the latest version.
2. Fixed the error in setting RBW in EasySpectrum when using emi filter.
3. Optimize the settable range of Ref Level. When the maximum value of Correction data that is turned on is positive, the maximum settable Ref Level is correspondingly increased by an equal value.
4. Fixed TOI measurement marked error.
5. Fixed the issue of possible crash when using the scpi command [:SENSe]:CORRection:CSET#:DATA? to read Correction data.
6. Optimize the use of command :DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel to set Ref Level. If no unit is specified, the current amplitude unit is used as the unit.
7. Fixed the issue where the command :CALCulate:MARKer#:Y? may read Marker amplitude value incorrectly when using Video Trigger.
8. Add Peak to Center command
   :CALCulate:MARKer#:MAXimum:CENTer

1. This firmware must be upgraded from V1.2.8.1 or later. If your SSA3000X has an earlier version, please update to V1.2.8.1 first and then proceed to update to the latest version.
2. Fixed the LOG scale sweep time and display error
3. Fixed the trace file .trc load and display error
4. Improve the stability of TG
5. Add peak excursion require command
    :CALCulate:MARKer:PEAK:EXCursion?
Add sweep state require command
    :TRACe:SWEep:STATe?
Add N dB Bandwidth left and right frequency require command
    :CALCulate:MARKer*:BANDwidth:RLEFt?
    :CALCulate:MARKer*:BANDwidth:RRIGht?

Notice:
This firmware must be upgraded from v2.1.1.1 or later. If your analyzer has an earlier version, don’t use this FW to update.
Improvements:
• Optimize the Ref level and Att couple
Solved Issues:
• Fix the zero sweep type when fft in SA mode
• Fix the OPC response in EMI mode