Yes. Once I start running Kiwi, I suddenly aware of noises. I have replaced all the switching power supply in the building and taking some other approach to reduce noises. My Kiwi is in a grounded metal shelves. I changed USB cables for leaking noises. I do have to still house my MMDVM board and Raspberry pi in the same shelves. So I think that's a noise source. Also, the location is still close to power transmission line. That I can't solve.
