Yaesu FTDX10 FT8/FT4/MSK144 Digital Mode Configuration Settings

Configuring a Yaesu FTDX10 transceiver for digital modes like FT8, FT4, and MSK144 requires precise adjustments across both the operating system and the digital mode software. This resource details specific Windows 10 audio codec settings, including playback levels at 29 and recording levels at 47, along with advanced 16-bit 48000 bps (DVD Quality) selections for optimal signal fidelity. It also specifies checking the "Disable all enhancements" box for playback and enabling audio enhancements for recording.

The document outlines critical WSJT-X v.2.5.1 parameters, such as setting the Rig to FTDX-10, a 1-second poll interval, and a 38400 baud rate for CAT control. The PTT method is configured to RTS, with Split Operation set to "Fake It" or "None." Audio input and output are directed to the USB AUDIO CODEC, with a recommended WSJT-X Pwr Slider setting of -32.0 dB, adjusted to ensure ALC meter readings remain within the white segment on the FTDX10.

Transceiver-specific settings include a CAT RATE of 38400 bps, AMC RELEASE TIME set to MID, and DATA SHIFT (SSB) at 1500 Hz. The RPORT GAIN is specified at 70, with notes suggesting lower values (e.g., 30) can also yield clean signals. Transmit bandwidth selection is discussed, recommending 50-3050Hz for wideband modes like MSK144, while suggesting 400-2600Hz for FT4/FT8 to mitigate second harmonics and improve signal purity. The guide also references discussions with W5AJ, DO1YHD, AC6BW, and W9RTB.