QSLing: Verifying Amateur Radio Contacts

Confirming Your DX Contacts

Austin
Reviewed by • Digital Modes & Software Editor March 2026

QSLing is the fundamental process within amateur radio for verifying successful two-way radio contacts (QSOs). A QSL, derived from the Q-code for "I acknowledge receipt," serves as written confirmation of a contact between two stations. Traditionally, QSLs are physical postcards exchanged via postal mail, often facilitated by QSL bureaus to reduce costs for international contacts. The card typically includes details such as callsigns, date, time (UTC), frequency, mode, and signal report. Beyond personal satisfaction, accurate QSLing is crucial for obtaining various amateur radio awards like DXCC (DX Century Club) and IOTA (Islands On The Air), which require documented proof of contacts with specific entities or locations.

Modern QSLing encompasses both traditional paper cards and digital methods. eQSL.cc and Logbook of The World (LoTW) are prominent electronic QSL systems that provide instant verification and streamline the award application process. These platforms utilize digital signatures to ensure authenticity. Resources like QSL information databases and bureau finders assist operators in determining the correct QSL route for a specific station, whether direct, via bureau, or through an OQRS (Online QSL Request Service). Understanding these methods is essential for any serious DXer or contester.

Sort: