Historical note: this post documents an early 2024 build and is kept for reference. For current firmware, use C-Board Firmware v0.32 , and see CEC UV-K5 Firmware Source Is Now Open for the source code. ▶ Watch the HF 0.5 fullband walkthrough on YouTube → Subscribe to the KD8CEC YouTube channel for more UV-K5 HF videos. Related: UV-K5 · si4732 · HF full band Introduction to UV-K5 HF 0.5 (Fullband receive version) This is an introduction to UV-K5 HF full-band reception firmware 0.4HF using SI4732-A10. This version is released separately from the existing UV-K5 CEC firmware version. because space is needed to store a large PATCH file to use SI4732-A10's SSB. This article only describes the features newly added in Version 0.5. Please check the links below for full features. How to modify your hardware http://www.hamskey.com/2024/02/uv-k5s-hf-full-band-reception-lsb-usb.html Version 0.3HF (Most feature descriptions are provided) http://www.hamskey....