BH5UNT 89u93832 The CEC firmware can transmit a clean FT8 signal, but it requires a custom-made audio cable and the use of customized WSJT-X software. See the UVK5-CEC repository for details. https://github.com/phdlee/uvk5cec/releases And the tutorial on WeChat "@XANYITOP". Although few people play FT8 on UHF/VHF = =, but Japanese people do like 144MHz DX.