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I have been fighting bad band noise on all of my sBitx's from the DE to my V2 and V3, finally decided and set out to find another solution. I researched the most quite Buck converter that the RC and Drone users are using and they mostly agree that this is the best one,? I tried it in my V3 and found it works great with no rf noise that I can see anywhere and the general noise floor is much lower than before and the best part, it runs cool to the touch after 5 hours. I'm now going to install one in my DE now. YMMV.

Hi, Joel.

I am finding my V3 heat sink gets very hot to the touch when running ordinary software on the Pi 4.? This means I'm not running the sbitx app, I'm just using it as a general purpose Pi host, and the heat sink gets very hot.? ?This means the heat is coming from the regulator and not from the sbitx final transistors.

So when your title says 'hot' I presume you mean this regulator can reduce temperature?

Do you have more details on how to install it?

I believe the critical section of the schematic is:



So you are simply detaching U8 and replacing it with the?DROK 12v to 5v Volt Converter?

Any other guidance?
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Regards,
Dave, N1AI