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Chameleon Knowledge Base · The Complete Online HF Antenna Handbook

What Is a PL-259 Connector?

Learn what a PL-259 connector is, its advantages, limitations, and why it remains one of the most common RF connectors in amateur radio.

Feed Lines & Connectors RF Connectors & Adapters Reviewed 2026-07-14
Short Answer: Learn what a PL-259 connector is, its advantages, limitations, and why it remains one of the most common RF connectors in amateur radio.

Explanation

Overview The PL-259 , commonly called the UHF male connector , is one of the most widely used RF connectors in amateur radio. It has been used for decades on HF equipment because of its rugged construction, low cost, and ease of installation. Construction Threaded coupling nut. Center male pin. Metal body. Solder or crimp cable termination. Advantages Durable construction. Excellent mechanical strength. Widely available. Easy to install. Affordable. Limitations Not a constant-impedance connector. Less suitable for microwave frequencies. Performance decreases as frequency increases. Typical Applications HF amateur radio. Base stations. Portable HF equipment. Antenna feed lines. Applied to Chameleon Products Many Chameleon antenna systems and accessories are compatible with PL-259 connectors because they remain the standard connector used by most HF amateur radio transceivers and antenna equipment. Related Articles What Is an SO-239 Connector? What Is a Type N Connector? How Do You Install a PL-259 Connector? What Is Coaxial Cable? Related Products All Chameleon Antenna Systems

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.