Having been thoroughly concerned about soldering SMD’s it’s apparaent that they aren’t all that bad!
Last night I finished the preliminary build and completed the checks on the build notes. There were a few odd voltages across some of the pins of a U6 and U8 but it seemed to fire up ok and was recognised as a USB device. I was able to change frequencies and connected up the audio. There was a reassuring hiss of the noise I’d expected but slap bang in the centre of every tuned band was an enormous band of noise. None of the band pass filters were installed so this may be a cause but after checking things again and removing the HF Lite altogether the noise was still there. Maybe it doesn’t like my machine, but I’ll check again later and if it’s still there with some filters installed. Below is the screenshot