Wiki source code of 2.5.6-hilbert release notes
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| author | version | line-number | content |
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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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4.2 | 9 | [[image:1777545521540-352.png]] |
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1.2 | 10 | |
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4.2 | 12 | [[image:1777545531725-172.png]] [[image:1777545537835-544.png]] |
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8.1 | 14 | |
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1.2 | 15 | * Reworked the internal DSP filters: latency reduced by **20 ms**, and the RX/TX passband lower limit was extended down to **50 Hz**. |
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4.2 | 16 | |
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6.2 | 17 | [[image:1777545598327-286.png||height="469" width="800"]] |
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4.2 | 18 | |
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8.1 | 19 | |
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1.2 | 20 | * Improved unwanted sideband suppression to **-90 dB** across the entire audio range. |
| 21 | * RIT/XIT are now automatically disabled in **Split** mode. | ||
| 22 | * Redesigned the boot and startup splash screens. | ||
| 23 | * Improved the automatic update mechanism for the kernel and other system components. | ||
| 24 | * 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. | ||
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9.1 | 25 | * 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 valuse wil be improved in tne next relases. |
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6.2 | 26 | |
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8.1 | 27 | [[image:1777545644733-692.png]] [[image:1777545756154-399.png]] |
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