What is a QSL?
It comes from the international Q codes, a type of radio shorthand based on similar codes developed by telegraph operators. Most radio amateurs want proof of their contact with other amateurs. This proof is the QSL card which is simply a postcard verifying contact between the two stations, or a reception report from an SWL (Short Wave Listener). A good guide to QSL’ing can be found on Charles Wilmotts’ (M0OXO) website.