a post card, which you can request to confirm you made a two-way or heard the crew on the Amateur Radio band
a proof of listening and reporting the station
a specially designed postcard that hams exchange in the mail whenever they make contact with one another for the first time
a (usually postcard-sized) hardcopy, containing the specific details of a QSO
a verification of a contact with another amateur
Often referred to as simply a "QSL"; similar in size to a postcard, it is used to "confirm" (or show proof of) having made contact with another station on the air; applies to both "two-way" and "one-way" (SWL) communications; the QSL card is filled out by the issuer/sender, and by convention it contains (1) the station contacted, (2) UTC date and time of contact, (3) frequency/band, (4) signal report (RST), and (5) callsign and address of issuer/sender. QSL cards are commonly used as proof of fulfilling various operating awards such as DXCC, WAS, etc.
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.
