Jim Sheldon W0EB has done some initial testing of the new µBITx board on his brand new spectrum analyser. The results are CW only (so these results won’t show the impacts of any distortion in the mixers or IF bidi amplifiers that were observed with the v3 and v4 boards.
There are still some bands that would not meet most countries’ spectral purity requirements.
For a full set of graphs for each band click on the reference link below.