QSL card

From K2CC Wiki

A QSL card is often sent after a simplex transmission as a form of written confirmation of a QSO. A QSL card often takes the form of a postcard, and my be sent directly to the other operator, or via a QSL bureau.

Example of a QSL card.

Contents of a QSL Card

As a minimum, a QSL card should contain the following information

  • Call sign of the sending station
  • Name of the operator (and Call sign in the event the QSL card is coming from a club's call sign)
  • Address of the sending station
  • Call sign of the receiving station
  • UTC Date of the contact
  • UTC Time of the contact
  • Frequency
  • Mode of transmission
  • Signal Report
  • A request for a QSL from the other station (PSE QSL) or thanks for QSL received (QSL THX)


Other information that can be included on a QSL card:

  • Radio, antenna, etc. used
  • Power output
  • Grid location (especially important above 50 MHz)
  • Short message or reminder of QSO topics

QSL Card Dimensions

The IARU Region 2 has suggested the following dimensions as optimum:
Height: 3 1/2 in. (90 mm)
Width: 5 1/2 in. (140 mm)


The ARRL Outgoing QSL Service suggests cards falling in the following range are easily sorted, stacked, and packaged:
Height: 2‑3/4 to 4‑1/4 in. (70 to 110 mm)
Width: 4‑3/4 to 6‑1/4 in. (120 to 160 mm)

Reference: ARRLWeb: ARRL's Outgoing QSL Service. American Radio Relay League. Accessed 2007-10-18.

Previous K2CC QSL Cards

K2CC's Pre-2007 QSL card