What are Radio QSL Cards?

Another relic of a bygone era.

Radio QSL cards were basically radio postcards — proof that you and someone else chatted over the airwaves. You’d mail them after a successful radio convo, like, “Yup, I heard you loud and clear.”

The name comes from the Q code “QSL”:

• “QSL?” = Did you get my signal?

• “QSL” = I got your signal.

They were typically hand-drawn and people would collect them like…