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Handheld Direction Finding Loop Antenna for RFI Location - ARRL
A good way to locate radio-frequency interference (RFI) in the HF bands is with a small direction finding antenna and a portable radio. Learn More
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ARRLWeb: ARRL EMC Committee Semi-Annual Report
Jan 20, 2017 ... So far, most cases involving Amateur radio have been argued on the basis of harmful interference as opposed to exceeding the FCC emissions. Learn More
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New Book Release: Using the Baofeng® Radio - ARRL
May 23, 2025 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
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ARRL Antenna Book
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More
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National Association for Amateur Radio Website Search - ARRL
ARRL Antenna Book 24th Edition. The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams ... Learn More
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Power Line Noise - ARRL
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More
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New Book from ARRL: Amateur Radio Contesting for Beginners
Jan 17, 2020 ... Contesting is one of the most exciting aspects of amateur radio — and for some, it's their primary ham radio activity. Learn More
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New Book Featuring Popular Modes FT8 and WSPR is Now Shipping!
Apr 12, 2018 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
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Part 15 Devices - ARRL
Dec 2, 2001 ... The ARRL RFI Book has many sug- gestions for resolving a wide range of radio-frequency interference.1 If a prob- lem is serious or ... Learn More
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Logbook of The World - ARRL
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More
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