Building a HF Amateur Radio Station – Episode 3 – Audio Design – Part 1 11 hours agoM0YOMAmateur Radio, YouTubeAdd comment Previous postBuilding a HF Amateur Radio Station – Episode 2 – Old Antenna Switches, Chatting & New deliveries About author View all posts M0YOM I'm James, a radio amateur, software engineer and professional geek. I'm the owner of a Software Company and Director and part owner of a web design, hosting and media business.