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  • 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

  • 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

  • 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

  • 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

  • Computer Law Review - ARRL

    But because FRS power output is limited to 0.500 watt, FRS transmissions are unlikely to cause RFI. See 47 C.F.R. § 95.639(d). Amateur radio operators, on the ... Learn More

  • ARRL EMC Committee Semi-Annual Report

    Jun 12, 2007 ... RFI COMPLAINTS BY SOURCE: Power Line Noise. 44. Amateur Radio. 22. Unknown. 33. Appliances & Electrical Devices. 7. Automotive. 5. Computer. 7. 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

  • ARRL Letter

    Apr 1, 2021 ... Celebrate World Amateur Radio Day 2021 on April 18 · FT8 Accounts for Nearly Two-Thirds of HF Activity · ARRL Podcasts Schedule · IARU Region 1 ... Learn More

  • Black Gold - Hot Mics

    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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