SmartSDR v3.0.27 and v2.5.1 are Now Available

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  • Updated 1 month ago
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FlexRadio Systems announces the immediate availability of SmartSDR v3.0.27 and SmartSDR v2.5.1 for the FLEX-6000 Signature Series SDRs. 

SmartSDR v3.0.27 is a Maintenance release containing software fixes for version 3 of SmartSDR for Windows, SmartSDR for Maestro, SmartSDR for M models, SmartSDR CAT and DAX.

Please download and review the SmartSDR v3.0.27 Release Notes prior to installing SmartSDR v3.0.27 to ensure an optimal software installation experience.


SmartSDR v2.5.1 is a General Availability (GA) release containing new features and software fixes for version 2 of SmartSDR for Windows, SmartSDR for Maestro, SmartSDR for M models, SmartSDR CAT and DAX. 

Please download and review the SmartSDR v2.5.1 Release Notes prior to installing SmartSDR v2.5.1 to ensure an optimal software installation experience.

NOTE: It is strongly recommended that you export your profiles before installing SmartSDR v2.5.1. The SmartSDR database in version 2.5.1 is not compatible with previous versions of SmartSDR v2 (v2.4.9 and below).  If you revert from SmartSDR v2.5.1 to a previous version of SmartSDR, you will need to perform a factory reset of your database and import your profiles saved using SmartSDR v2.4.9 and below after the firmware downgrade.


An appropriate software license for the FLEX-6000 is required to run SmartSDR v3.x or SmartSDR v2.x

If prompted to upgrade your SmartSDR license, obtaining and validating a license for your FLEX-6000 software defined radio is a simple process.  Once the radio and client have network access to the Internet, just load any version of the SmartSDR v3.x or SmartSDR v2.x software on your PC or Maestro. In the radio chooser, if a radio requires a license, a status message will indicate a license is required before connecting to the radio and updating the firmware.  A “Buy” button is also presented so that you can conveniently purchase a SmartSDR v3.x license (which also includes SmartSDR v2.x) using our Online Store. Please see the SmartSDR Release Notes regarding the purchase of a SmartSDR software license for your radio.


The following highlights are SmartSDR v3.0.27 specific items:
  • ATU Fixes: Fixed issue that resulted in a false positive match without actually tuning an antenna and the power level sliders now accurately reflect RF power used when ATU is tuning. (#7429, #7370) 
  • Fixed Persistence Restoration over a SmartLink Connection:  Fixed issue where SmartLink connections would not restore persistence when using a Maestro or M Model SDR.  (#7376) 
  • Quick Record/Playback defect Fixed: Quick Record/Playback now works properly when using PC Audio (Remote Audio RX Streams) (#7344) 
  • Problems with transmitting out of band on 60m:  Fixed issues with out-of-band 60m transmit (#7377) 
  • Full Duplex Operation (FDX) Fixed: Issues with FDX not working properly have been resolved (#7457) 
  • SSB Monitor Audio feature Fixed:  SSB MON Audio now works properly with PC Audio (can also hear other clients transmit when using multiFLEX) (#7358) 
  • Bug Fixes: There are 40+ bug fixes in this release since v3.0.19.  Please refer to the SmartSDR v3 ChangeLog for a complete listing. 

The following highlights are SmartSDR v2.5.1 specific items:
  • New Band Settings menu/panel: allows a user to visually set certain settings per-band (power levels, TX Inhibit, ACC/TX1/TX2/TX3 Enabled, RCA/ACC TX Request Enable and HW ALC). (#6953)
  • TX/MIC Profile Changes: All settings are now saved automatically as the settings are changed. (#6953)
  • Spots Performance: Improved radio spots performance, resulting in reduction in audio stuttering and a smoother operational experience. (#6957)
  • SmartSDR Autoconnect:  SmartSDR for Windows now has an option to automatically connect to the last connected radio when starting. (#6641)
  • Adjustable MTU for enhanced SmartLink Compatibility: Internet connections that utilize PPPoE (Point-to-Point Protocol over Ethernet), specifically DSL connections, cannot use the maximum 1500 byte packet size for communication over the Internet.  This can result in issues with establishing a SmartLink connection.  SmartSDR v3.0 provides a new feature where the MTU of the VITA-49 data can be set to a lower value to mitigate MTU related issues.  (#7089)
  • Changes to TURF Regions:  The 60m band has been added for France, Hungary, Italy and Greece.  The 12m band has been expanded for Norway (#6842, #6805, #6842, #6726, #6709, #6627 and #7186)
  • Mode CAT added to USB Cables Feature: The CAT command set for the USB Cables feature has been expanded to set the mode of the radio using the MD CAT command. (#6683)
  • APF added to the FlexControl: You can now enable and adjust the APF (Automatic Peak Filter) feature when operating CW. (#6822)
  • Bug Fixes: There have been significant bug fixes in this release.  Please refer to the SmartSDR v2 ChangeLog for a complete listing
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Tim - W4TME, Customer Experience Manager

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