← All radio termsRadio glossary · Operating & logging

QSL

In logging, QSL refers to confirmation of a contact. Sent, requested and received are different states and must be tracked separately.

Also found under: QSL · Bestätigung · Confirmation · LoTW · eQSL

A concrete example

An uploaded log entry is not yet a received confirmation.

What to keep in mind

This website counts only explicitly confirmed receipts as received QSLs.

Further reference

Original explanation based on the technical documentation. Reviewed on 15 October 2026.

ADIF Developers Group · ADIF specification ↗