Wiki source code of 2.5.6-hilbert release notes

Last modified by UT2UK on 2026/04/30 15:44

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UT2UK 1.2 1 **Features**:
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3 * The rear USB port can now be switched between **Host (Master)** and **Slave** modes via the menu.
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5 [[image:1777545492264-514.png||height="450" width="800"]]
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7 * In **USB Slave** mode, added composite USB gadget support with a virtual COM port (**CAT control**) and a virtual audio device for PC connection.
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UT2UK 4.2 9 [[image:1777545521540-352.png]]
UT2UK 1.2 10
UT2UK 14.1 11 [[image:1777546193823-102.png]]
UT2UK 1.2 12
UT2UK 4.2 13 [[image:1777545531725-172.png]] [[image:1777545537835-544.png]]
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UT2UK 8.1 15
UT2UK 1.2 16 * Reworked the internal DSP filters: latency reduced by **20 ms**, and the RX/TX passband lower limit was extended down to **50 Hz**.
UT2UK 4.2 17
UT2UK 6.2 18 [[image:1777545598327-286.png||height="469" width="800"]]
UT2UK 4.2 19
UT2UK 11.1 20 [[image:1777545885743-121.png||height="450" width="800"]]
UT2UK 8.1 21
UT2UK 11.1 22
UT2UK 1.2 23 * Improved unwanted sideband suppression to **-90 dB** across the entire audio range.
24 * RIT/XIT are now automatically disabled in **Split** mode.
25 * Redesigned the boot and startup splash screens.
26 * Improved the automatic update mechanism for the kernel and other system components.
UT2UK 12.1 27 * Optimised DSP code to reduce memory and core utiliztions.
UT2UK 1.2 28 * Added **Recovery Mode**: to recover a bricked device, power on the transceiver while holding the **PTT pedal**. The transceiver will boot from the recovery partition and connect to the remote server for troubleshooting.
UT2UK 17.1 29 * Total measured end-to-end latency from the antenna input to the PC audio output in USB mode is **128 ms** (**EAX mode: 150 ms**). Those values wiil be improved  in the next releases.
UT2UK 6.2 30
UT2UK 8.1 31 [[image:1777545644733-692.png]] [[image:1777545756154-399.png]]
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