-
Extra Class (Element 4) Question Pool - ARRL
Jul 1, 2024 ... Which of the following determines ground losses for a ground-mounted vertical antenna operating ... A multi-band trap antenna. C. A phased array ... Learn More
-
Supplemental Files – ARRL Antenna Book, 23rd Edition
(Note: Chapters 2 and 28 have no supplemental files.) Chapter 1. Supplemental Articles. • “Radio Mathematics” — supplemental information about math used in ... Learn More
-
Do You Need an Antenna Tuner - ARRL
amateur transceivers are designed to work with a load impedance of 50 ohms. When your radio sees an impedance of. 50 ohms, or something close to it, you're on. Learn More
-
A Compact All-Band Antenna - ARRL
W. ITH the ever-increasing complexity of contemporary amateur radio, as evidenced by available all-band transmitters and receivers for home and ... Learn More
-
A Compact 20-Meter Vertical Dipole for Stealth and Portable ... - ARRL
Jun 30, 2019 ... Now retired, he is secretary of the Norfolk Coast Amateur. Radio Society. Steve edited the book Inter- national Antennas, published in 2017 ... Learn More
-
2004 ARRL Field Day
Jul 12, 2004 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
-
Entered to give a few points away and test some antennas at ... - ARRL
Just few mult QSO in 15M as my 4BTV antenna in that band isn't adequate for QRP work. Very challenging contest and very fun too. Way too many stations trying to ... Learn More
-
How to Start Modeling Antennas using EZNEC - ARRL
May 19, 2011 ... Amateur radio is somewhat unique in that antennas, especially transmitting antennas, usually function across an entire band, not just a single ... Learn More
-
Evaluating Compliance with FCC Guidelines for Human Exposure to ...
Amateur radio organizations and licensees are encouraged to develop their own more detailed evaluation models and methods for typical antenna configurations and. Learn More
-
Grounding - ARRL
After antennas, station grounding is probably the most discussed subject in amateur radio and it is also the one replete with the most misconceptions. Learn More
NEW TO ARRL
LEARN MORE ABOUT
MEMBER QUICK LINKS
LICENSING LINKS
IN THE ARRL STORE
Copyright © 2026 The American Radio Relay League, Inc. All rights reserved. Reproduction of material from any ARRL web page without written permission is strictly prohibited.