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  • A Line Noise Sniffer That Works

    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

  • 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

  • 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

  • Grounding and Bonding for the Amateur

    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

  • QEXfiles

    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

  • Meetings

    Aug 27, 2024 ... January 18 (the Thursday before the January 2024 Board Meeting) – W1GKS, W1EMI, W1RFI,. W1DRF (ARRL Lab Digital RF Engineer), K3ZJ and K9LA met ... Learn More

  • Ferrite choke kits for coax, USB, and ethernet

    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 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

  • FCC Power-Utility Letter

    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@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

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