QSL Cards

What is a QSL Card?
A QSL card is a written confirmation of either a two-way radiocommunication between two amateur radio stations or a one-way reception of a signal from an AM radio, FM radio, or television station. QSL cards can also confirm the reception of a two-way radiocommunication by a third party. A typical QSL card is the same size and made from the same material as a typical postcard, and many are sent through the mail as a standard postcard.

QSL cards derived their name from the Q code "QSL", which means "I acknowledge receipt." Most are collected by amateur radio operators, shortwave listeners, TV-FM DXers, and other radio hobbyists. A limited market exists for older QSL cards, especially those from rare locations or famous stations, as collector's items.