I'm planning to build a 5W PWR/SWR meter very similar to this design by G3YMC, but with two meters:
I'd like to put it in this metal box, and use the box as ground. However, the bottom of the box would then also be ground, and I may accidentally touch it. Would that be a problem?
Or does that depend on how I will use it? For now I'll use it for 40m/20m, up to 5W.