Nick VK4PLN has been working on a new board that will give a few extra features to a stock uBitx and plugs into the audio loom socket.
Its an Audio board providing easy access to Audio I/O pins. (add in your own AGC board, External amplifier…) It includes an area for adding an SSM2167 Mic Pre-amp module (with filtering for feedback and shutdown on TX). It also includes the simple 4 component PTT POP fix. (BS170) and a switchable 200hz CW filter. (LM324) that Nick already produces as a board for purchase.
The board has a bonus “snap off” section with a 3.5MHZ BCI filter for the RX chain.
Here is a pre-view, NOTE this is a WORK-IN-PROGRESS.
