Brick-SDR 1.3.5

Brick-SDR 1.3.5

CW

• Three CW decoders, switchable on the fly in the CW window (Decoder drop-down): Basic (envelope), DeepCW (neural network, MIT, by e04) and Goertzel (a port of ggmorse, MIT). On a live 40 m QSO DeepCW read the whole exchange cleanly; try the others and tell us which one works best for you.
• DeepCW needs deepcw\model.onnx and ONNX Runtime next to the program (both are in the installer); if they can't be loaded the basic decoder is used.

FT8 / FT4

• The window is answered in the next slot when you click a station and press Enable TX in time (early decode 1.5 s before the slot ends); CQ starts in the soonest slot.
• A click on a decoded line selects the station, a double click also enables TX. Log button opens the folder with the ADIF log (digi_modes\ft_log.adi).
• PSK Reporter spotting (Setup - General - DIGI MODES - FT8/FT4 - Network Services). Off by default.
• The FT8 / FT4 window closes when the receiver leaves DIGU.
• Transmit level and Drive: RTTY and FT8/FT4 use full audio level, power is set by the main Drive slider as in CW/SSB.

Digital windows

• No Close / RX1 / RX2 buttons (the window follows the mode and the DIGI menu), "RADE" is called FreeDV, the VAC settings panel is hidden while FT8/FT4, RTTY or FreeDV is in use.
• DIGI menu remembers the dial frequency and LSB/USB returns to it.
• The TX leveler is switched on in SSB.

Fixes

• DirectX error on minimize ("Problem in DirectX Renderer, DivideByZeroException") with "Maintain aspect ratio" on.
• "Ignore spectral area image" is kept between runs (plain black background).
• Auto AGC (right click on the RF slider): the knob turns green while it is on.
• PA settings of Brick boards were skipped when the board was found before Setup existed; fixed.

Not tested on the air: RTTY and CW transmit, FreeDV on real traffic, the FreeDV Reporter connection.