Heat proofing the ubitx.
I have been working to keep the power transistors cooler.
Initally I added a 80mm fan to blow across the transistors and board.
When doing ft8 I would get significant heating of the power transistors.Everything is run with a 13.8v linear power supply. The transistors would heat up enough to make them too hot to keep my fingers against.
I added a shroud similar to the one shown covering the stock heatsinks. It did not help that much. I had a fairly small but 1" tall computer heat sink, cut it in half and tapped in mounting holes. The should dhad to be redesigned to fit them but now I have not been able to feel more than only very slight heating wile running the FT8 tuning feature.
ubitx fan shroud
this worked so well I added a similar heatsink to my bitx40.