Looks like there are some things to clean up. Links on several of the web pages, for instance to PDFs, are dead links. For example: <https://elecraft.com/products/k1upkt_k1-upgrade-kit> https://elecraft.com/products/k1upkt_k1-upgrade-kit The PDF and the firmware links are dead. I didn’t list all I found but there are several. Vy 73 de Bob DJ0RD/WU5T