Project USB audio interface

For my old YAESU FT-480R I built myself an audio PC interface. It provides the interface between PC and radio to make digital modes (e.g. FT8) via the sound card. The interface has a manual switch to switch between sound card and microphone. So I can also do SSB operation.

Now I have attached additional fans to the YAESU FT-480R which contribute to the cooling of the power amplifier during FT8 operation.