Firmware Updates

October 2025

• A high temperature warning display has been implemented for when LabSat reaches maximum operating temperature.
• A battery temperature warning icon has been implemented for when the battery reaches its charging temperature threshold.
• A new criterion has been added to improve RF Channel Configurations: The bandwidth of at least one active channel must match the set Maximum Bandwidth.
• A new user prompt has been implemented in the Constellation menu and will be displayed if no active channels match the set Maximum Bandwidth.

• Further improvements to the GNSS Monitor functionality.
• Improvements for telnet responses when streaming with SatGen 4 Real Time.

• Static IP addresses no longer invert when the configuration is exported.
• The settings change dialog no longer appears indefinitely when network streaming mode is changed via the web interface.
   

September 2025

• Added support for real-time simulations using SatGen 4.
•  Added formatting capability for blank SSD.
• Added capability to copy from SSD to NAS via LCD.
• Added new Loop Icon on the LCD.
• Added play ‘from’ and ‘for’ indicators on the LCD.
• Added ‘Playing…’, ‘Recording…’ and ‘Streaming…’ indicators on  the LCD for the initialising phases.

• Improvements to the GNSS Monitor functionality.
• Improvements to the responsiveness of the Setup Menu.
• Changed the pause counter between loops to count down for better clarity.
• Added progress bar scaling when play ‘from’ or ‘for’ settings are applied.
• LAN2 MAC address added in About menu.

• Fixed bug causing intermittent RF output issues.
• Fixed bug causing log file RS232 data output during pause.
• Fixed bug where Manual Gain Value was not being retained for the first recording.
   

May 2025

• Added support for new LabSat 4 models (Lite & Core).
• Added support for the UGREEN 2.5 Gbps USB Ethernet Adapter for improved NAS streaming.
• Added functionality to copy from SSD directly to a mounted NAS drive.
• Added functionality to auto-connect to a previously connected NAS drive after a power cycle.

• Added a Replay only indicator when a record operation is attempted on a replay-only unit. 
• Changed the default RF configuration quantization to 2-bit.

December 2024

• Multi-Sync: Added the ability to tightly synchronise two LabSat 4 units to record and replay for applications such as Dual Antenna testing.
• Manual Gain Control: Added the option to select ‘Manual gain control’ implemented alongside level feedback in the recording status display. This allows the user to set a fixed gain level for recording.
• Recording Status display: Added extra parameters, including Gain mode (Auto or Manual), RX Gain, and RSSI (Receive Signal Strength Indicator).
• Telnet: Added commands to support the Manual gain control feature.
• USB Media record & replay: Added the ability to record or replay directly from USB-connected media.
  

  Note: Requires a high-speed USB drive.

• SD card copy: Added the ability to copy scenario files from the internal SSD to a suitably formatted SD card and vice versa.
• NFS support for NAS protocols: Added NFS support to NAS protocols alongside the pre-existing SMB support.

• Additional record and replay configurations: As a result of system optimisations, you now have more record and replay options available for configuration, including combinations of 60 MHz bandwidth and 12-bit quantization. You can see the full list on the Valid Configurations Combinations with LabSat 4 page. 
• NAS improvements: Optimization of the data stream method allows for smoother, less error-prone streams from a NAS to LabSat 4.
  

  Note: It is recommended to not exceed 85 MB/s for replay streaming.

• File list navigation improvements: To improve file navigation, particularly in cases when you have large numbers of files present on the File Selection Screen, you can now press the Up arrow to navigate from the top of the list to the bottom of the list and press the Down arrow to navigate from the bottom of the list to the top of the list. 
• Webpage: General UI and control improvements. Additional controls have been added to support new features, such as Manual gain control. 
• Play From/For:  Play controls have been improved.

• Internal receiver: Resolved an issue where the internal receiver reported no satellite lock.

June 2024

• Initial Release

Occasionally, Racelogic releases new versions of firmware for LabSat 4. This is usually to introduce new features or improvements. 

The new firmware can be loaded into LabSat 4 via the SD card.

The latest firmware upgrade file for LabSat 4 is available on the LabSat Website.

1. Download the firmware from the LabSat Website.
2. Unzip the downloaded firmware file and copy it onto the root directory of the SD card.
3. Power up LabSat 4 and wait until the box has finished the initialisation.
   
   The initialisation has been completed when the boot screen disappears, and you can interact with the unit as usual.
    
4. Insert the SD card with the firmware file into the SD card slot on the front panel of LabSat 4.
   
   LabSat 4 will display an upgrading splash screen.
    
5. LabSat 4 will automatically restart when the upgrade is complete.
   

   IMPORTANT Do not remove the SD card or power down LabSat 4 until it has completed its automatic restart.

   
    
6. When the update has been completed, the firmware file will be erased from the SD card.
   
   If the update fails for any reason, the firmware file will remain on the SD card, and LabSat 4 will retain the previous version of the firmware.
    
7. You can confirm that LabSat 4 is running the latest firmware by navigating to the About Menu and checking the current firmware version.