-
ARRL Serving its Members: NU2W's Story
Aug 15, 2025 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
-
Electric Fence Noise - ARRL
Let's now take a closer look at the problem of unwanted radio noise from an electric fence, and ways to find and fix it. Virtually all radio interference ... Learn More
-
Electric Fence - ARRL
Electric fence noise is ruining radio reception. Fortunately, the cures are normally inexpensive and easy to implement, if you have a cooperative fence owner. Learn More
-
Grounding and Bonding for the Amateur - ARRL
The book brings together material from numerous Amateur Radio and industry sources to present a comprehensive picture of basic grounding and bonding practices. Learn More
-
ARRL Letter
Mar 18, 2021 ... We believe that there's a place for a virtual ham expo to serve the needs of the very large amateur radio community, especially those that don't ... Learn More
-
Electric Fence Interference—A Case History - ARRL
Paul thinks I'm an RFI guru, so I had to fake it. I grabbed my well-worn copy of Radio Frequency Interference: How to Find It and Fix It [1] and dashed out the ... Learn More
-
A Line Noise Sniffer That Works - ARRL
I tried to find the source by using an AM broadcast receiver, but I could only deter- mine a general location. My AM radio picked up the standing-wave power- ... Learn More
-
ARES Letter Issues - ARRL
Oct 20, 2021 ... Hams Support Chicago Marathon · Can an Amateur Radio Handheld Stop a Train? · ARRL Simulated Emergency Tests Underway; Early Reports In · The ... Learn More
-
ARRL EMC Committee Semi-Annual Report
Jan 26, 2007 ... RFI COMPLAINTS BY SOURCE: Power Line Noise. 36. Amateur Radio. 31. Unknown. 48. Appliances & Electrical Devices. 20. Automotive. 5. Computer. 5. Learn More
-
The EMI Finder - ARRL
Some of the typical broadband emit- ters of radio frequency interference. (RFI) that you can pinpoint are power- line insulators, computers and indus- trial ... 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.