Evan and Mark:? I now have my ubitx v6 back with the original firmware and screen.? The old screen works well but the radio does not receive or transmit.? I tried the BFO calibration again with no success.? I am going to put it on the shelf for now.? I have ordered some Arduino Nano's to try but I believe you are correct, it is probably the ST5351 chip.? I will see if I can buy a new Raduino board.? I noticed that there have been several versions of this board.? I was gong to start with the HF Signals store.? Is there somewhere else I can purchase the correct Raduino board for my ubitx v6??
I thank both of you for trying to help me.? Stuart KN4RGB
