After nearly 3 years of careful development, the ARRL Clean Signal Initiative (CSI) rolls out in the April 2026 issue of QST. Read ARRL Laboratory Manager George Spatta’s, W1GKS, “The Launch of the Clean Signal Initiative” for a reintroduction to the program and a walk-through of how CSI data will be reported in QST Product Review. Read QST

ARRL Education Specialist — and host of On the Air Live — Wayne Greene, KB4DSF, walks you through “Building and Installing a 2-Meter Ground-Plane Antenna” in preparation for the March 24 On the Air Live livestream in which he’ll go into more build and installation details. ARRL members can register for the event at learn.arrl.org. Read On the Air

Carlo Francescangeli, KJ4EGU, reimagines a 90-degree corner reflector for use on 435 MHz in “Circular Polarized — 435 MHz Corner Reflector Antenna.” The article includes details on the single-feed mechanical rotation mechanism for switching the polarization. Read QEX

Get radiosport techniques and tips from today’s top contesters. Read NCJ

Build a 2-Meter Ground Plane with OTA and OTA Live

ARRL Education Specialist — and host of On the Air Live — Wayne Greene, KB4DSF, joins the podcast to explain the merits of the antenna presented in his March/April 2026 On the Air article “Building and Installing a 2-Meter Ground-Plane Antenna,” and details how to register for the March 24 On the Air Live session in which he’ll take real-time questions about the construction and use of the antenna. Listen March 12

On the Air LIVE

Join ARRL Education Specialist Wayne Greene, KB4DSF, on the next On the Air LIVE as we discuss how to build a rugged 2-meter VHF ground-plane antenna from simple, easy-to-find wire—no exotic parts, no machine shop required. This isn’t a fragile attic experiment; we’ll design it stout enough for real outdoor duty and then take it a step further with an unconventional deployment method that gets the antenna up to 50+ feet—without a tower. The episode will be live on the ARRL’s Learning Center, learn.arrl.org, on March 24th at 8PM Eastern. Preregistration is required and can be accomplished on the learning center.

 Date: March 24, 2026

 Time: 8 PM Eastern / 5 PM Pacific

 Register Now

ARRL’s new book, Digital Networking for Ham Radio, a practical, hands-on guide to designing and implementing high-speed data networks for amateur radio stations, is now shipping.

Written by Glen Popiel, KW5GP, the book brings together in one comprehensive resource the knowledge needed to build, configure, and expand digital networks for ham radio. From TCP/IP fundamentals to deploying mesh technologies such as AREDN^®, HamWAN, and Meshtastic^®, readers will find clear explanations and step-by-step guidance. Order Now

Dayton Hamvention, Xenia, Ohio | May 15 – 17, 2026

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