The as-built board has a 0 Ω jumper instead of the 6 dB pad along the upper right edge:
The previous version had a pi bandpass filter in place of the pad and you could certainly repopulate it with two caps and a teeny inductor if you so desired.
I added the SMA connector, which isn’t quite identical to the IF output connector above it:
That will require a new hole in the end plate that I’ll get around to shortly. It also needs an external switch connected to the Enable jumper, but that’s in the nature of fine tuning.
I’m awaiting a handful of adapters & cables from halfway around the planet…