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  • ARRL@HamRadio.Fun: November Sweepstakes For the Win!

    Dec 22, 2012 ... This year, the Missouri S&T Amateur Radio Club, W0EEE, took a much bigger role in Sweepstakes. In past years, we battled with noise and RFI ... Learn More

  • FCC Power-Utility Letter - ARRL

    If the interference involves an operator in the Amateur Radio Service, the ARRL may be able to help by providing information about power-line noise. Contact:. Learn More

  • ARRL Letter

    Mar 25, 2021 ... The FCC announced on March 19 that the amateur radio application fees, including those associated with Form 605 filings, would not become ... Learn More

  • ARRL EMC Committee Report

    Aug 27, 2024 ... Item 1 - Lab Issues - W1EMI reports that he had more than 32 RFI cases in the first half of 2024. ... WA6MEM reported on a wideband noise source ... Learn More

  • ARRL EMI/RFI Products And Other Resources

    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

  • Smart Meters - 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

  • Interference From BPL Systems - 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

  • ARRL Letter

    Oct 7, 2021 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More

  • Ferrite choke kits for coax, USB, and ethernet - KF7P.com

    Time to reduce the annoying RF sources that are picked up in your radio, or cause havoc with interconnecting shack equipment. Our choke kits provide the ... Learn More

  • ARRL Letter

    Apr 8, 2021 ... Radio frequency interference (RFI) has been a problem for ham radio operators and SWLs (shortwave listeners) since the radio hobby began. Noise ... Learn More

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