During long periods of DX’ing or contesting a voice keyer becomes a very valuable piece of kit. Some radio now come with one built in and you can always add an external one (see me voice key project) if your radio doesn’t have one. A voice keyer is basically hardware which can save a small message, in most cases a CQ call, which can be sent repeatedly to save the operators voice (and sanity in some cases!). This article is about my project to add [...]