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Chameleon Knowledge Base · The Complete Online HF Antenna Handbook

What Is ADIF (Amateur Data Interchange Format)?

Learn what ADIF (Amateur Data Interchange Format) is and why it is the universal standard for exchanging amateur radio logbooks.

Getting Started Amateur Radio Operating Practices Reviewed 2026-07-14
Short Answer: Learn what ADIF (Amateur Data Interchange Format) is and why it is the universal standard for exchanging amateur radio logbooks.

Explanation

Overview ADIF (Amateur Data Interchange Format) is the worldwide standard file format used to exchange amateur radio logbook information between logging programs, award systems, and online logbooks. Nearly every modern amateur radio logging application supports ADIF import and export. Typical Information Stored Callsign. Date and time (UTC). Band. Frequency. Operating mode. RST reports. Grid locator. Power. Station information. Benefits Universal compatibility. Easy log migration. Award tracking. Backup and archival. Supports thousands of QSOs. Common Applications Logbook of The World (LoTW). Club Log. QRZ Logbook. eQSL. Contest submissions. Applied to Chameleon Products Maintaining ADIF logs allows Chameleon operators to compare antenna performance over time, document portable deployments, and preserve operating history regardless of which logging software they use. Related Articles What Is Amateur Radio Logging Software? What Is Logbook of The World? What Is Club Log? What Is eQSL? Related Products All Chameleon Antennas

The exact result depends on the complete station: frequency, geometry, feed line, matching network, return-current path, environment, operating power, and the reference plane of any measurement. A low SWR establishes an impedance relationship at that point; it does not by itself prove efficiency, radiation pattern, compatibility, or safety.

What to Verify

  • Use the newest official product guide or primary service documentation.
  • Confirm the exact model, revision, components, configuration, and operating conditions.
  • Begin tests at low power and change one variable at a time.
  • Do not infer compatibility from connector or thread fit.

Learn Next

  • Antenna Selection: A Mission-First Decision Guide
  • Engineering Design Tradeoffs in Portable HF Antennas
  • Antenna Measurement Reference Planes
  • Understanding Common-Mode Current

Source note: Independently synthesized with reference to The ARRL Handbook for Radio Communications, 99th edition (2022), and The ARRL Antenna Book for Radio Communications, 24th edition (2019). Verify changing regulations, services, software, specifications, availability, and safety requirements against current primary sources.